WO2019214536A1 - 阿尔茨海默症患者图形认知能力评估系统及方法 - Google Patents

阿尔茨海默症患者图形认知能力评估系统及方法 Download PDF

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Publication number
WO2019214536A1
WO2019214536A1 PCT/CN2019/085446 CN2019085446W WO2019214536A1 WO 2019214536 A1 WO2019214536 A1 WO 2019214536A1 CN 2019085446 W CN2019085446 W CN 2019085446W WO 2019214536 A1 WO2019214536 A1 WO 2019214536A1
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Prior art keywords
patient
geometric
cognitive
touch
patients
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PCT/CN2019/085446
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English (en)
French (fr)
Inventor
郑亢
王建春
游华
阙中有
陈琦
陈文�
张小光
林琅
卢立
苗成林
曹启晨
高伟明
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Shenzhen Qianhai AnyCheck Information Technology Co Ltd
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Shenzhen Qianhai AnyCheck Information Technology Co Ltd
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    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/70—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mental therapies, e.g. psychological therapy or autogenous training
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
    • G16H50/30—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for calculating health indices; for individual health risk assessment

Definitions

  • the invention relates to the field of elderly health care, in particular to a system and method for evaluating graphic cognitive ability of patients with Alzheimer's disease.
  • Alzheimer disease also known as "Alzheimer's disease”
  • Alzheimer's disease is a brain cognitive dysfunction that leads to memory, execution, visual space, language communication, abstract thinking, learning and computing.
  • Neurodegenerative disease Alzheimer's disease often occurs in old age or early age, and the risk of AD increases with age.
  • the treatment of Alzheimer's disease is generally drug treatment, anti-anxiety drugs, antidepressants, antipsychotics, nootropics, and drugs for improving cognitive function, but because of the various factors involved in the disease, it must not be a simple drug. treatment.
  • Existing drugs in the early stages of the disease, drugs can improve symptoms, can only slightly improve the quality of life of patients, and can not prevent the development of senile dementia.
  • AD patients As the disease progresses, the patient will feel that the effective time of the drug is shortened after long-term use. Once the drug is stopped, the patient's body will also have side effects.
  • it In order to evaluate and train AD patients' cognitive ability to conduct things, it is usually used in the form of manual test and question-and-answer communication.
  • the cognitive ability of AD patients is not evaluated and trained by the cognitive pattern of AD patients. Therefore, it is necessary to provide a cognitive ability test system and method for Alzheimer's disease patients to automatically evaluate and train graphical cognitive ability of AD patients, thereby helping AD patients to improve their cognitive ability.
  • the main object of the present invention is to provide a system and method for assessing the cognitive ability of a patient with Alzheimer's disease, aiming at solving the problem that the prior art does not automatically evaluate and train the graphic cognitive ability of AD patients to help AD patients improve things.
  • the problem of cognitive ability is to provide a system and method for assessing the cognitive ability of a patient with Alzheimer's disease, aiming at solving the problem that the prior art does not automatically evaluate and train the graphic cognitive ability of AD patients to help AD patients improve things.
  • the problem of cognitive ability is to provide a system and method for assessing the cognitive ability of a patient with Alzheimer's disease
  • the present invention provides a graph cognitive ability evaluation system for a patient with Alzheimer's disease, which is applied to a portable electronic device including a touch screen and a voice player, and the graphic recognition of the Alzheimer's disease patient
  • the capability assessment system includes a plurality of computer program instructions, the portable electronic device further comprising a processor adapted to implement the computer program instructions and a memory adapted to store the computer program instructions, the computer program instructions being loaded by the processor and performing the following steps: Reading a plurality of geometric shapes from the memory, and sequentially presenting each geometrical image in a display area of the touch screen; controlling the voice player to play a voice prompting the patient to present each geometric figure presented in the display area in the touch area of the touch screen Determining whether the AD patient's copying time exceeds the preset time; when the AD patient's copying graphic time exceeds the preset time, the geometric shape of each copy of the AD patient completed by the AD patient is captured from the touch area of the touch screen; Analysis of the correctness of a Linyi figure Evaluation
  • the computer program instructions are loaded by the processor, and the step of: importing the AD cognitive scale and a plurality of geometric images for the AD patient into the memory through the USB port of the portable electronic device in advance in.
  • the controlling the voice player to play the voice prompt AD the patient in the touch area of the touch screen to extract each geometric figure presented in the display area comprises the following steps: when the first geometric figure is presented in the display area, the control The player plays the first prompt voice prompting the AD patient to use the finger or the touch pen to copy the first geometric figure in the touch area; when the second geometric figure is presented in the display area, the player is controlled to play the second prompt voice prompting the AD patient Use the finger or the touch pen to copy the second geometric figure in the touch area; when the third geometric figure is displayed in the display area, control the player to play the third prompt voice prompting the AD patient to use the finger or the touch pen in the touch area to copy The third geometric figure is displayed; when the fourth geometric figure is presented in the display area, the player is controlled to play the fourth prompt voice to prompt the AD patient to use the finger or the touch pen to draw the fourth geometric figure in the touch area.
  • the step of identifying the correctness of each copy of the graphic drawn by the AD patient comprises analyzing a score for evaluating the cognitive score of the AD patient comprising the steps of: capturing each copy from the touch area The graphic is compared with the geometry of its corresponding geometry to identify the correctness of each copy of the graphic drawn by the AD patient; the number of geometric figures correctly drawn by the AD patient is calculated to calculate the cognitive pattern for the AD patient. Evaluation score.
  • the geometric figure comprises a circle, two overlapping rectangles, a diamond shape and a cube.
  • the present invention also provides a method for evaluating a cognitive ability of a patient with Alzheimer's disease, which is applied to a portable electronic device, the portable electronic device comprising a touch screen, a voice player and a memory, the method comprising the following steps: Reading a plurality of geometric figures in the memory, and sequentially presenting each geometric figure in a display area of the touch screen; controlling the voice player to play the voice prompting the patient to copy each geometric figure presented in the display area in the touch area of the touch screen; Determining whether the AD patient's copying time exceeds the preset time; when the AD patient's copying graphic time exceeds the preset time, the geometric shape of each copying image completed by the AD patient is captured from the touch area of the touch screen; each of the AD patient's drawn figures is identified.
  • the correctness of the Linyi diagram was analyzed to evaluate the cognitive scores of AD patients' cognitive patterns; the cognitive ability of AD patients was evaluated according to the relationship between AD cognitive scales and evaluation scores.
  • the method for assessing the cognitive ability of the Alzheimer's disease patient further comprises the steps of: pre-introducing the AD cognitive scale and a plurality of geometric patterns for the AD patient to be imported through the USB port of the portable electronic device. Go to the memory.
  • the controlling the voice player to play the voice prompt AD the patient in the touch area of the touch screen to extract each geometric figure presented in the display area comprises the following steps: when the first geometric figure is presented in the display area, the control The player plays the first prompt voice prompting the AD patient to use the finger or the touch pen to copy the first geometric figure in the touch area; when the second geometric figure is presented in the display area, the player is controlled to play the second prompt voice prompting the AD patient Use the finger or the touch pen to copy the second geometric figure in the touch area; when the third geometric figure is displayed in the display area, control the player to play the third prompt voice prompting the AD patient to use the finger or the touch pen in the touch area to copy The third geometric figure is displayed; when the fourth geometric figure is presented in the display area, the player is controlled to play the fourth prompt voice to prompt the AD patient to use the finger or the touch pen to draw the fourth geometric figure in the touch area.
  • the step of identifying the correctness of each copy of the graphic drawn by the AD patient comprises analyzing a score for evaluating the cognitive score of the AD patient comprising the steps of: capturing each copy from the touch area The graphic is compared with the geometry of its corresponding geometry to identify the correctness of each copy of the graphic drawn by the AD patient; the number of geometric figures correctly drawn by the AD patient is calculated to calculate the cognitive pattern for the AD patient. Evaluation score.
  • the geometric figure comprises a circle, two overlapping rectangles, a diamond shape and a cube.
  • the graph cognitive ability evaluation system and method for the Alzheimer's disease patient of the present invention presents the AD patient with a geometric pattern through the voice in the display area of the display screen, and prompts the AD patient to display on the display screen.
  • the touch area is based on the geometrical geometry, and the visual cognition ability of the AD patients is evaluated according to the relationship between the AD cognitive scale and the evaluation scores of the cognitive images of the AD patients, and the automatic test of the cognitive ability and memory ability of the AD patients is realized.
  • Auxiliary training AD patients to recognize the cognitive ability of things, reduce the artificial training time for the recovery of cognitive impairment in AD patients, and increase the interactive and entertaining ability of training AD patients with cognitive ability.
  • FIG. 1 is a schematic diagram of an application environment of a preferred embodiment of a graphical cognitive ability evaluation system for a patient with Alzheimer's disease according to the present invention
  • FIG. 2 is a flow chart of a preferred embodiment of a method for evaluating a cognitive ability of a patient with Alzheimer's disease according to the present invention
  • FIG. 3 is a schematic diagram of an operational interface presented on a touch screen for a patient with Alzheimer's disease.
  • Fig. 1 is a schematic diagram showing an application environment of a preferred embodiment of the graph cognitive ability evaluation system for Alzheimer's patients according to the present invention.
  • the Alzheimer disease also known as "Alzheimer's disease” patient graphical cognitive ability evaluation system 10 is installed and operated in the portable electronic device 1, the portable electronic device 1 It can be a smart electronic display device such as a tablet computer, a smart phone, or a PDA device, and can be used for portable electronic devices that patients carry with them.
  • the portable electronic device 1 includes, but is not limited to, an Alzheimer's disease patient cognitive ability evaluation system 10, a touch screen 11, a voice player 12, and a memory suitable for storing a plurality of computer program instructions. 13.
  • a processor 14 that executes various computer program instructions.
  • the touch screen 11, the voice player 12 and the memory 13 are both electrically connected to the memory 13 via a data bus, and can interact with the AD patient graphical cognitive ability evaluation system 10 via the memory 13.
  • the portable electronic device 1 further includes, but is not limited to, a power supply, an on-off key, a time setting key, a USB port, and the like having a common component.
  • FIG. 3 is a schematic diagram of an operation interface presented on a touch screen for a temporary geometric pattern of an Alzheimer's disease patient.
  • the touch screen 11 is divided into two areas, including a display area 111 and a touch area 112.
  • the display area 111 is used to sequentially display a plurality of geometric patterns for the AD patient, as shown in FIG.
  • the four geometric figures that ask the patient to copy are displayed in the order of a circle, two overlapping rectangles, a diamond, and a cube.
  • the touch area 112 is used for the AD patient to sequentially draw a copy pattern, which can capture the shape of the copy pattern drawn by the AD patient.
  • the display area 111 is an untouchable display portion. That is, only the geometry can be displayed, and the shape of the geometry cannot be changed; the touch area 112 can capture both the shape of the copy pattern drawn by the AD patient and the copy pattern drawn by the AD patient.
  • the voice player 12 may be a speaker embedded in the portable electronic device 1 for playing a voice prompt AD patient to present each geometric figure presented in the display area 111 in the touch area 12 of the touch screen 11.
  • the memory 13 can be a read only memory ROM, a random access memory RAM, an electrically erasable memory EEPROM, a flash memory FLASH, a magnetic disk or an optical disk, or the like.
  • the memory 13 is configured to store a plurality of geometric patterns for AD patients, an AD cognitive scale for testing cognitive ability of AD patients, and an AD patient graph composed of a plurality of computer program instructions. Cognitive ability assessment system.
  • the processor 14 is a central processing unit (CPU), a microprocessor, a microcontroller (MCU), a data processing chip, or an information processing unit having data processing functions.
  • the Alzheimer's patient graphic cognitive ability evaluation system 10 is composed of program modules composed of various computer program instructions, including but not limited to, a graphic presentation module 101 , The voice prompt module 102, the graphic recognition module 103, and the graphic recognition evaluation module 104.
  • a module referred to in the present invention refers to a series of computer program instructions that can be executed by the processor 14 and that are capable of performing fixed functions, which are stored in the memory 13.
  • the graphic rendering module 101 is configured to store the AD cognitive scale and the plurality of geometric figures in the memory 13 in advance. Specifically, the tester can preliminarily introduce the AD cognitive scale for testing the cognitive ability of the AD patient and the plurality of geometric images for the AD patient through the graphic presentation module 101 into the memory 13 through the USB port of the portable electronic device 1. .
  • the AD cognitive scale is a standard for cognitive assessment of AD patients commonly used in the medical field as a basis for evaluating the cognitive ability of AD patients.
  • the geometry can be selected by the tester according to the test requirements. The example uses four geometric shapes, including a circle, two overlapping rectangles, a diamond, and a cube.
  • the graphic rendering module 101 is further configured to read a plurality of geometric shapes from the memory 13 and sequentially present each geometrical graphic in the display area 111 of the touch screen 11.
  • the graphic presentation module 101 will sequentially display the four geometric shapes of the circular, two overlapping rectangles, diamonds and cubes required by the AD patient.
  • the AD patient draws the desired circular shape in the touch area 112.
  • the voice prompting module 102 controls the voice player 12 to play a voice prompt AD patient to present each geometric figure presented in the display area 111 in the touch area 12 of the touch screen 11. Specifically, when the graphic presentation module 101 presents the first geometric figure (for example, a circle) in the display area 111, the player 12 is controlled to play the first prompt voice prompting the AD patient to use the finger or the touch pen to open the touch area 112.
  • the graphic presentation module 101 presents the first geometric figure (for example, a circle) in the display area 111
  • the player 12 is controlled to play the first prompt voice prompting the AD patient to use the finger or the touch pen to open the touch area 112.
  • the first geometric figure when the graphic rendering module 101 presents the second geometric figure (for example, two overlapping rectangles) in the display area 111, the control player 12 plays the second prompt voice prompting the AD patient with a finger or a touch pen
  • the second geometric pattern is copied out in the touch area 112; when the graphic rendering module 101 presents the third geometrical figure (for example, a diamond) in the display area 111, the player 12 is controlled to play a third prompt voice to prompt the AD patient to use the finger or
  • the touch pen has a third geometric shape in the touch area 112; when the graphic presentation module 101 presents the fourth geometric figure (for example, a cube) in the display area 111, the player 12 is controlled to play the fourth prompt voice to prompt the AD patient to use the finger.
  • the head or stylus immediately exits the fourth geometry in the touch area 112.
  • the graphic recognition module 103 is configured to determine whether the AD patient's copying graphic time exceeds a preset time, and the preset time may be performed by the tester according to the difficulty setting degree of the AD patient to draw the geometric figure through the time setting key of the portable electronic device 1.
  • the setting for example, is generally set to 4 minutes; when the AD patient's copying graphic time exceeds the preset time, the graphic recognition module 103 captures the shape of each copying image completed by the AD patient from the touch area 12 of the touch screen 11. In this embodiment, the graphic recognition module 103 can capture each copy of the graphic drawn by the AD patient from the touch area 12 and identify the geometric shape of each copy.
  • the graphic cognition evaluation module 104 is configured to identify the correctness of each copy of the graphic drawn by the AD patient to analyze an evaluation score for evaluating the cognitive figure of the AD patient. Specifically, the graphic recognition evaluation module 104 compares each of the copy patterns captured by the touch area 12 with the geometry of the corresponding geometric figure to identify the correctness of each copy of the graphic drawn by the AD patient, and counts AD patients correctly plot the number of geometric figures to calculate the evaluation scores of cognitive patterns in AD patients.
  • the graphic recognition evaluation module 104 determines that the copying pattern of the AD patient is correct; if the geometric shape of the copying graphic is not the same as the geometric shape of the corresponding geometric figure; The graphical cognition assessment module 104 determines that the copy pattern drawn by the AD patient is incorrect.
  • the evaluation scores for evaluating cognitive patterns of AD patients can be obtained according to the following scoring criteria: taking 4 geometric figures as an example, if one graphic is not drawn correctly, the evaluation score is 1 point; if 2 graphics are not drawn If correct, the evaluation score is 2 points; if 3 graphics are not drawn correctly, the evaluation score is 3 points; if all 4 graphics are not correctly drawn, the evaluation score is 4 points; if no geometric figures are drawn If you draw a scribble, draw a part of the graph, and replace the graph with words, the score is 5 points.
  • the graphical cognition assessment module 104 is further configured to evaluate the graphical cognitive ability of the AD patient based on the relationship between the AD cognitive scale and the evaluation score.
  • the relationship between the AD cognitive scale and the evaluation score evaluation is defined as: if the evaluation score of the AD patient is 1 point, the degree of cognitive impairment of the AD patient is relatively mild; if the evaluation score of the AD patient is 2 points, then The degree of cognitive impairment in patients with AD is mild; if the score of AD patients is 3, the degree of cognitive impairment in AD patients is moderate; if the score of AD patients is 4, the cognitive impairment in AD patients The degree is relatively severe; if the evaluation score of AD patients is 5 points, the degree of cognitive impairment in AD patients is severe.
  • Figure 2 is a flow diagram of a preferred embodiment of a method for assessing graphical cognitive ability in a patient with Alzheimer's disease in accordance with the present invention.
  • the various method steps of the Alzheimer's patient's graphical cognitive ability assessment method are implemented by a computer software program stored in a computer readable storage medium in the form of computer program instructions (
  • the computer readable storage medium may include: a read only memory, a random access memory, a magnetic disk or an optical disk, etc., the computer program instructions being loadable by a processor (eg, the processor 14) and performing the following steps S21 to S29 .
  • the AD cognitive scale and the plurality of geometric figures are pre-stored in the memory.
  • the AD cognitive scale for testing the cognitive ability of the AD patient and the plurality of geometric images for the AD patient are introduced into the memory 13 through the USB port of the portable electronic device 1 in advance by the graphic presentation module 101.
  • the AD cognitive scale is a standard for cognitive assessment of AD patients commonly used in the medical field as a basis for evaluating the cognitive ability of AD patients.
  • the geometry can be selected by the tester according to the test requirements.
  • the example uses four geometric shapes, including a circle, two overlapping rectangles, a diamond, and a cube.
  • step S22 a plurality of geometric figures are read from the memory, and each geometric figure is sequentially presented in a display area of the touch screen.
  • the graphic presentation module 101 reads a plurality of geometric figures from the memory 13, and sequentially presents each geometric figure in the display area 111 of the touch screen 11.
  • the graphic presentation module 101 sequentially presents four geometric shapes of circular, two overlapping rectangles, diamonds, and cubes required for the AD patient to be displayed on the display area 111 for the AD patient to touch the area 112. Draw the desired circular shape.
  • Step S23 controlling the voice player to play the voice prompt AD patient to view each geometric figure presented in the display area in the touch area of the touch screen.
  • the voice prompting module 102 controls the player 12 to play the first prompt voice prompting the AD patient to use the finger or touch.
  • the pen licks out the first geometric figure in the touch area 112 of the touch screen 11; when the graphic rendering module 101 presents the second geometrical figure (for example, two overlapping rectangles) on the display area 111 of the touch screen 11, the voice prompting module 102 controls The player 12 plays the second prompt voice prompting the AD patient to use the finger or the touch pen to copy the second geometric figure in the touch area 112; when the graphic presentation module 101 presents the third geometric figure (eg, diamond) on the display of the touch screen 11 In the area 111, the voice prompting module 102 controls the player 12 to play the third prompt voice prompting the AD patient to use the finger or the touch pen to draw the third geometric figure in the touch area 112; when the graphic rendering module 101 sets the fourth geometric figure ( When the cube is presented in the display area 111 of the touch screen 11, the voice prompt module 102 controls the player 12 to play the fourth.
  • AD patients shows a voice prompt finger or a touch pen copy web geometry in the fourth touch region 112.
  • step S24 it is determined whether the AD patient's copying graphics time exceeds a preset time.
  • the graphic recognition module 103 determines whether the AD patient's copying graphics time exceeds a preset time. If the AD patient's temporary graphic time does not exceed the preset time, the process returns to step S23; if the AD patient's copying graphic time exceeds the preset time, the process proceeds to step S25.
  • the preset time may be set by the tester according to the difficulty level of the AD patient to draw the geometric figure through the time setting button of the portable electronic device, for example, generally set to 4 minutes.
  • Step S25 capturing the geometry of each copy pattern completed by the AD patient from the touch area of the touch screen; specifically, when the AD patient copying the graphic time exceeds the preset time, the graphic recognition module 103 captures the AD from the touch area 112 of the touch screen 11.
  • the geometry of each copy of the pattern completed by the patient In this embodiment, the graphic recognition module 103 can capture each copy of the graphic drawn by the AD patient from the touch area 12 and identify the geometric shape of each copy.
  • step S26 the correctness of each copy of the graphic drawn by the AD patient is identified to analyze an evaluation score for evaluating the cognitive pattern of the AD patient.
  • the graphic recognition evaluation module 104 compares each of the copy patterns captured by the touch area 12 with the geometry of the corresponding geometric figure to identify the correctness of each copy of the graphic drawn by the AD patient, and counts AD patients correctly plot the number of geometric figures to calculate the evaluation scores of cognitive patterns in AD patients.
  • the graphic recognition evaluation module 104 determines that the copying pattern of the AD patient is correct; if the geometric shape of the copying graphic is not the same as the geometric shape of the corresponding geometric figure; The graphical cognition assessment module 104 determines that the copy pattern drawn by the AD patient is incorrect.
  • the evaluation scores for evaluating cognitive patterns of AD patients can be obtained according to the following scoring criteria: taking 4 geometric figures as an example, if one graphic is not drawn correctly, the evaluation score is 1 point; if 2 graphics are not drawn If correct, the evaluation score is 2 points; if 3 graphics are not drawn correctly, the evaluation score is 3 points; if all 4 graphics are not correctly drawn, the evaluation score is 4 points; if no geometric figures are drawn If you draw a scribble, draw a part of the graph, and replace the graph with words, the score is 5 points.
  • step S27 the graphic cognitive ability of the AD patient is evaluated according to the relationship between the AD cognitive scale and the evaluation score.
  • the graphical cognition assessment module 104 evaluates the graphical cognitive ability of the AD patient based on the relationship between the AD cognitive scale and the evaluation score.
  • the relationship between the AD cognitive scale and the evaluation score evaluation is defined as: if the evaluation score of the AD patient is 1 point, the degree of cognitive impairment of the AD patient is relatively mild; if the evaluation score of the AD patient is 2 points, then The degree of cognitive impairment in patients with AD is mild; if the score of AD patients is 3, the degree of cognitive impairment in AD patients is moderate; if the score of AD patients is 4, the cognitive impairment in AD patients The degree is relatively severe; if the evaluation score of AD patients is 5 points, the degree of cognitive impairment in AD patients is severe.
  • the system and method for assessing the cognitive ability of Alzheimer's patients by presenting the geometry of the AD patient in the display area of the display screen, and prompting the AD patient to visually enter the geometrical area in the touch area of the display screen by voice
  • the graph cognitive ability of AD patients was evaluated, and the automatic test of graph cognitive and memory ability of AD patients was realized, which not only assisted AD patients in understanding things.
  • Cognitive ability reduces the amount of manual training for the recovery of cognitive impairment in AD patients and increases the interactivity and entertainment of training cognitive skills in AD patients.
  • the graph cognitive ability evaluation system and method for the Alzheimer's disease patient of the present invention presents the AD patient with a geometric pattern through the voice in the display area of the display screen, and prompts the AD patient to display on the display screen.
  • the touch area is based on the geometrical geometry, and the visual cognition ability of the AD patients is evaluated according to the relationship between the AD cognitive scale and the evaluation scores of the cognitive images of the AD patients, and the automatic test of the cognitive ability and memory ability of the AD patients is realized.
  • Auxiliary training AD patients to recognize the cognitive ability of things, reduce the artificial training time for the recovery of cognitive impairment in AD patients, and increase the interactive and entertaining ability of training AD patients with cognitive ability.

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Abstract

一种阿尔茨海默症患者图形认知能力评估系统（10）及方法，该方法包括步骤：从存储器（13）中读取多幅几何图形，并将每一幅几何图形呈现在触摸屏（11）的显示区域（111）（S22）；控制语音播放器（12）播放语音提示患者在触摸屏（11）的触摸区域（112）临摹出呈现在显示区域（111）的每一幅几何图形（S23）；判断AD患者临摹图形时间是否超过预设时间（S24）；当AD患者临摹图形时间超过预设时间，从触摸屏（11）的触摸区域（112）捕获AD患者完成的每一幅临摹图形的几何形状（S25）；识别AD患者画出的每一幅临摹图形的正确性分析出AD患者认知图形的评价分数（S26）；根据AD认知量表和评价分数的关系评估AD患者的图形认知能力（S27）。所述方法和系统实现了AD患者图形认知和记忆能力的自动测试与训练，增加了训练AD患者认知能力的互动性和娱乐性。

Description

阿尔茨海默症患者图形认知能力评估系统及方法 技术领域
本发明涉及老年健康护理领域，尤其涉及一种阿尔茨海默症患者图形认知能力评估系统及方法。
 背景技术
阿尔茨海默症（Alzheimer disease，AD，又称“老年痴呆症”）是一种会导致记忆力、执行力、视觉空间、语言交流、抽象思维、学习和计算等多方面大脑认知功能障碍的神经退行性疾病。老年痴呆症常发生在老年期或者老年前期，AD患病风险随着年龄增长而增加。目前老年痴呆症的治疗一般都是药物治疗，抗焦虑药、抗抑郁药、抗精神药、益智药以及改善认知功能的药等，但由于发病因素的涉及多方面，绝不能单纯的药物治疗。现有的药物，病情初期，药物可以改善症状，只能略微改善患者生活质量，无法阻止老年痴呆的发展。随病情发展，长期服用后患者就会感到药物有效时间缩短，一旦停药病情会加重，对AD患者的身体也会产生副作用。为了评估与训练AD患者对事物的认知能力，目前通常采用人工测试与问答交流的方式，现有技术中没有通过对AD患者认知图形来自动AD患者的认知能力进行评估与训练。因此，有必要提供一种用于阿尔茨海默症患者认知能力测试系统及方法，来对AD患者进行图形认知能力自动评估与训练，从而帮助AD患者提升对事物的认知能力。
 技术问题
本发明的主要目的在于提供一种阿尔茨海默症患者图形认知能力评估系统及方法，旨在解决现有技术没有对AD患者进行图形认知能力自动评估与训练来帮助AD患者提升对事物的认知能力的问题。
 技术解决方案
为实现上述目的，本发明提供一种阿尔茨海默症患者图形认知能力评估系统，应用于便携式电子装置中，该便携式电子装置包括触摸屏和语音播放器，该阿尔茨海默症患者图形认知能力评估系统包括多条计算机程序指令，该便携式电子装置还包括适于实现计算机程序指令的处理器以及适于存储计算机程序指令的存储器，所述计算机程序指令由处理器加载并执行如下步骤：从存储器中读取多幅几何图形，并将每一幅几何图形依次呈现在触摸屏的显示区域；控制语音播放器播放语音提示患者在触摸屏的触摸区域临摹出呈现在显示区域的每一幅几何图形；判断AD患者临摹图形时间是否超过预设时间；当AD患者临摹图形时间超过预设时间，从触摸屏的触摸区域捕获AD患者完成的每一幅临摹图形的几何形状；识别AD患者画出的每一幅临摹图形的正确性分析出一个用于评估AD患者认知图形的评价分数；根据AD认知量表和评价分数的关系评估AD患者的图形认知能力。
优选的，所述计算机程序指令由处理器加载还执行如下步骤：预先将所述AD认知量表以及多幅供AD患者临摹的几何图形通过所述便携式电子装置的USB端口导入到所述存储器中。
优选的，所述控制语音播放器播放语音提示AD患者在触摸屏的触摸区域临摹出呈现在显示区域的每一幅几何图形的步骤包括如下步骤：当第一幅几何图形呈现在显示区域时，控制播放器播放第一提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第一幅几何图形；当第二幅几何图形呈现在显示区域时，控制播放器播放第二提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第二幅几何图形；当第三幅几何图形呈现在显示区域时，控制播放器播放第三提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第三幅几何图形；当第四幅几何图形呈现在显示区域时，控制播放器播放第四提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第四幅几何图形。
优选的，所述识别AD患者画出的每一幅临摹图形的正确性分析出一个用于评估AD患者认知图形的评价分数的步骤包括如下步骤：将从触摸区域捕获到的每一幅临摹图形与其对应的几何图形的几何形状进行比较来识别AD患者画出的每一幅临摹图形的正确性；统计AD患者正确画出几何图形的数量来计算出所述用于评估AD患者认知图形的评价分数。
优选的，所述几何图形包括圆形、两个重叠的长方形、菱形和立方体。
另一方面，本发明还提供一种阿尔茨海默症患者图形认知能力评估方法，应用于便携式电子装置中，该便携式电子装置包括触摸屏、语音播放器以及存储器，该方法包括如下步骤：从存储器中读取多幅几何图形，并将每一幅几何图形依次呈现在触摸屏的显示区域；控制语音播放器播放语音提示患者在触摸屏的触摸区域临摹出呈现在显示区域的每一幅几何图形；判断AD患者临摹图形时间是否超过预设时间；当AD患者临摹图形时间超过预设时间，从触摸屏的触摸区域捕获AD患者完成的每一幅临摹图形的几何形状；识别AD患者画出的每一幅临摹图形的正确性分析出一个用于评估AD患者认知图形的评价分数；根据AD认知量表和评价分数的关系评估AD患者的图形认知能力。
优选的，所述阿尔茨海默症患者图形认知能力评估方法还包括步骤：预先将所述AD认知量表以及多幅供AD患者临摹的几何图形通过所述便携式电子装置的USB端口导入到所述存储器中。
优选的，所述控制语音播放器播放语音提示AD患者在触摸屏的触摸区域临摹出呈现在显示区域的每一幅几何图形的步骤包括如下步骤：当第一幅几何图形呈现在显示区域时，控制播放器播放第一提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第一幅几何图形；当第二幅几何图形呈现在显示区域时，控制播放器播放第二提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第二幅几何图形；当第三幅几何图形呈现在显示区域时，控制播放器播放第三提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第三幅几何图形；当第四幅几何图形呈现在显示区域时，控制播放器播放第四提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第四幅几何图形。
优选的，所述识别AD患者画出的每一幅临摹图形的正确性分析出一个用于评估AD患者认知图形的评价分数的步骤包括如下步骤：将从触摸区域捕获到的每一幅临摹图形与其对应的几何图形的几何形状进行比较来识别AD患者画出的每一幅临摹图形的正确性；统计AD患者正确画出几何图形的数量来计算出所述用于评估AD患者认知图形的评价分数。
优选的，所述几何图形包括圆形、两个重叠的长方形、菱形和立方体。
 有益效果
相较于现有技术，本发明所述阿尔茨海默症患者图形认知能力评估系统及方法，通过在显示屏的显示区域呈现AD患者需要临摹的几何图形，通过语音提示AD患者在显示屏的触摸区域临摹几何图形，并根据AD认知量表和AD患者认知图形的评价分数的关系评估出AD患者的图形认知能力，实现了AD患者图形认知和记忆能力的自动测试，不仅辅助训练AD患者认识事物的认知能力，减少了对AD患者认知能力障碍恢复的人工训练时间，并且增加了训练AD患者认知能力的互动性和娱乐性。
 附图说明
图1是本发明阿尔茨海默症患者图形认知能力评估系统优选实施例的应用环境示意图；
图2是本发明阿尔茨海默症患者图形认知能力评估方法优选实施例的流程图；
图3是呈现在触摸屏上供阿尔茨海默症患者临摹几何图形的操作界面示意图。
本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
 本发明的最佳实施方式
为更进一步阐述本发明为达成预定发明目的所采取的技术手段及功效，以下结合附图及较佳实施例，对本发明的具体实施方式、结构、特征及其功效，详细说明如下。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
参照图1所示，图1是本发明阿尔茨海默症患者图形认知能力评估系统的优选实施例的应用环境示意图。在本实施例中，所述阿尔茨海默症（Alzheimer disease，AD，又称“老年痴呆症”）患者图形认知能力评估系统10安装并运行于便携式电子装置1中，该便携式电子装置1可以为平板电脑、智能手机、PDA设备等智慧型电子显示设备，可以供患者随身携带的便携式电子设备。在本实施例中，所述便携式电子装置1包括，但不仅限于，阿尔茨海默症患者图形认知能力评估系统10、触摸屏11、语音播放器12、适于存储多条计算机程序指令的存储器13、执行各种计算机程序指令的处理器14。所述触摸屏11、语音播放器12和存储器13均通过数据总线与所述存储器13电连接，并能通过存储器13与所述AD患者图形认知能力评估系统10进行信息交互。所述便携式电子装置1还包括，但不仅限于，电源、开关键、时间设置键、USB端口等具有通用元部件。
如图3所示，图3是呈现在触摸屏上供阿尔茨海默症患者临摹几何图形的操作界面示意图。在本实施例中，所述触摸屏11划分为两个区域，包括显示区域111以及触摸区域112，所述显示区域111用于依次显示多幅供AD患者临摹的几何图形，如图3所示，显示要求患者临摹的四种几何图形，图形呈现的顺序是圆形、两个重叠的长方形、菱形和立方体。所述触摸区域112用于供AD患者依次画出临摹图形，其可以捕获到AD患者画出的临摹图形的形状。在本实施例中，为了防止AD患者触摸到显示区域111使几何图形的形状发生变化，而影响对AD患者图形认知能力评估的准确性，所述显示区域111为一个不可触摸的显示部分，即只可以显示几何图形，而不能更改几何图形的形状；所述触摸区域112既可以捕获到AD患者画出的临摹图形的形状，也可以显示AD患者画出的临摹图形。
所述语音播放器12可以为嵌入便携式电子装置1中的扬声器，用于播放语音提示AD患者在触摸屏11的触摸区域12临摹出呈现在显示区域111的每一幅几何图形。所述存储器13可以为一种只读存储器ROM，随机存储器RAM、电可擦写存储器EEPROM、快闪存储器FLASH、磁盘或光盘等。在本实施例中，所述存储器13用于存储多幅供AD患者临摹的几何图形、用于测试AD患者认知能力的AD认知量表、以及由多条计算机程序指令组成的AD患者图形认知能力评估系统。所述处理器14为一种中央处理器（CPU）、微处理器、微控制器（MCU）、数据处理芯片、或者具有数据处理功能的信息处理单元。
参考图1所示，在本实施例中，所述阿尔茨海默症患者图形认知能力评估系统10由各种计算机程序指令组成的程序模块组成，包括但不局限于，图形呈现模块101、语音提示模块102、图形识别模块103以及图形认知评估模块104。本发明所称的模块是指一种能够被处理器14执行并且能够完成固定功能的一系列计算机程序指令段，其存储在存储器13中。
所述图形呈现模块101用于将AD认知量表和多幅几何图形预先存储到存储器13中。具体地，测试人员可以通过图形呈现模块101预先将用于测试AD患者认知能力的AD认知量表以及多幅供AD患者临摹的几何图形通过便携式电子装置1的USB端口导入到存储器13中。所述AD认知量表为一种医学领域通用的AD患者认知评估标准表，作为测试AD患者认知能力的评估依据。所述几何图形可以根据测试需求由测试人员选择图形的复杂程度，本实例采用四种几何图形，包括圆形、两个重叠的长方形、菱形和立方体。
所述图形呈现模块101还用于从存储器13中读取多幅几何图形，并将每一幅几何图形依次呈现在触摸屏11的显示区域111。当测试者按下便携式电子装置1的开关键时，参考图3所示，图形呈现模块101将要求AD患者所需临摹的圆形、两个重叠的长方形、菱形和立方体四种几何图形依次呈现在显示区域111上，以供AD患者在触摸区域112画出所需的临摹圆形。
所述语音提示模块102控制语音播放器12播放语音提示AD患者在触摸屏11的触摸区域12临摹出呈现在显示区域111的每一幅几何图形。具体地，当图形呈现模块101将第一幅几何图形（例如圆形）呈现在显示区域111时，控制播放器12播放第一提示语音提示AD患者用手指头或者触摸笔在触摸区域112临摹出第一幅几何图形；当图形呈现模块101将第二幅几何图形（例如两个重叠的长方形）呈现在显示区域111时，控制播放器12播放第二提示语音提示AD患者用手指头或者触摸笔在触摸区域112临摹出第二幅几何图形；当图形呈现模块101将第三幅几何图形（例如菱形）呈现在显示区域111时，控制播放器12播放第三提示语音提示AD患者用手指头或者触摸笔在触摸区域112临摹出第三幅几何图形；当图形呈现模块101将第四幅几何图形（例如立方体）呈现在显示区域111时，控制播放器12播放第四提示语音提示AD患者用手指头或者触摸笔在触摸区域112临摹出第四幅几何图形。
所述图形识别模块103用于判断AD患者临摹图形时间是否超过预设时间，该预设时间可以由测试者根据要求AD患者画出几何图形的难易程度通过便携式电子装置1的时间设置键进行设置，例如通常设置为4分钟；当AD患者临摹图形时间超过预设时间时，图形识别模块103从触摸屏11的触摸区域12捕获AD患者完成的每一幅临摹图形的形状。在本实施例中，所述图形识别模块103可以从触摸区域12捕捉到AD患者画出的每一幅临摹图形，并识别出每一幅临摹图形的几何形状。
所述图形认知评估模块104用于识别AD患者画出的每一幅临摹图形的正确性分析出一个用于评估AD患者认知图形的评价分数。具体地，图形认知评估模块104将从触摸区域12捕获到的每一幅临摹图形与其对应的几何图形的几何形状进行比较来识别AD患者画出的每一幅临摹图形的正确性，并统计AD患者正确画出几何图形的数量来计算出AD患者认知图形的评价分数。若临摹图形与其对应的几何图形的几何形状相同或相似，则图形认知评估模块104确定AD患者画出的临摹图形正确；若临摹图形与其对应的几何图形的几何形状不相同也不相似；则图形认知评估模块104确定AD患者画出的临摹图形不正确。评估AD患者认知图形的评价分数可以根据如下评分标准得出：以4个几何图形为例，若有1个图形画得不正确，则评价分数为1分；若有2个图形画得不正确，则评价分数为2分；若有3个图形画得不正确，则评价分数为3分；若所有4个图形画得不正确，则评价分数为4分；若未画出任何几何图形、画得潦草、画了一部分图形、以字代替图形，则评价分数为5分。
所述图形认知评估模块104还用于根据AD认知量表和评价分数的关系评估AD患者的图形认知能力。所述AD认知量表和评价分数评的关系定义为：若AD患者的评价分数为1分，则AD患者的认知障碍程度为比较轻度；若AD患者的评价分数为2分，则AD患者的认知障碍程度为轻度；若AD患者的评价分数为3分，则AD患者的认知障碍程度为中度；若AD患者的评价分数为4分，则AD患者的认知障碍程度为比较重度；若AD患者的评价分数为5分，则AD患者的认知障碍程度为严重重度。
参考图2所示，图2是本发明阿尔茨海默症患者图形认知能力评估方法的优选实施例的流程图。在本实施例中，所述阿尔茨海默症患者图形认知能力评估方法的各种方法步骤通过计算机软件程序来实现，该计算机软件程序以计算机程序指令的形式存储于计算机可读存储介质（例如存储器13）中，计算机可读存储介质可以包括：只读存储器、随机存储器、磁盘或光盘等，所述计算机程序指令能够被处理器（例如处理器14）加载并执行如下步骤S21至步骤S29。
步骤S21，将AD认知量表和多幅几何图形预先存储到存储器中。具体地，通过图形呈现模块101预先将用于测试AD患者认知能力的AD认知量表以及多幅供AD患者临摹的几何图形通过便携式电子装置1的USB端口导入到存储器13中。所述AD认知量表为一种医学领域通用的AD患者认知评估标准表，作为测试AD患者认知能力的评估依据。所述几何图形可以根据测试需求由测试人员选择图形的复杂程度，本实例采用四种几何图形，包括圆形、两个重叠的长方形、菱形和立方体。
步骤S22，从存储器中读取多幅几何图形，并将每一幅几何图形依次呈现在触摸屏的显示区域。当测试者按下便携式电子装置1的开关键时，图形呈现模块101从存储器13中读取多幅几何图形，并将每一幅几何图形依次呈现在触摸屏11的显示区域111。参考图3所示，图形呈现模块101将要求AD患者所需临摹的圆形、两个重叠的长方形、菱形和立方体四种几何图形依次呈现在显示区域111上，以供AD患者在触摸区域112画出所需的临摹圆形。
步骤S23，控制语音播放器播放语音提示AD患者在触摸屏的触摸区域临摹出呈现在显示区域的每一幅几何图形。具体地，当图形呈现模块101将第一幅几何图形（例如圆形）呈现在触摸屏11的显示区域111时，语音提示模块102控制播放器12播放第一提示语音提示AD患者用手指头或者触摸笔在触摸屏11的触摸区域112临摹出第一幅几何图形；当图形呈现模块101将第二幅几何图形（例如两个重叠的长方形）呈现在触摸屏11的显示区域111时，语音提示模块102控制播放器12播放第二提示语音提示AD患者用手指头或者触摸笔在触摸区域112临摹出第二幅几何图形；当图形呈现模块101将第三幅几何图形（例如菱形）呈现在触摸屏11的显示区域111时，语音提示模块102控制播放器12播放第三提示语音提示AD患者用手指头或者触摸笔在触摸区域112临摹出第三幅几何图形；当图形呈现模块101将第四幅几何图形（例如立方体）呈现在触摸屏11的显示区域111时，语音提示模块102控制播放器12播放第四提示语音提示AD患者用手指头或者触摸笔在触摸区域112临摹出第四幅几何图形。
步骤S24，判断AD患者临摹图形时间是否超过预设时间。具体地，图形识别模块103判断AD患者临摹图形时间是否超过预设时间。若AD患者临摹图形时间没有超过预设时间，流程返回步骤S23；若AD患者临摹图形时间超过预设时间，流程执行步骤S25。在本实施例中，所述预设时间可以由测试者根据要求AD患者画出几何图形的难易程度通过便携式电子装置的时间设置键进行设置，例如通常设置为4分钟。
步骤S25，从触摸屏的触摸区域捕获AD患者完成的每一幅临摹图形的几何形状；具体地，当AD患者临摹图形时间超过预设时间时，图形识别模块103从触摸屏11的触摸区域112捕获AD患者完成的每一幅临摹图形的几何形状。在本实施例中，所述图形识别模块103可以从触摸区域12捕捉到AD患者画出的每一幅临摹图形，并识别出每一幅临摹图形的几何形状。
步骤S26，识别AD患者画出的每一幅临摹图形的正确性分析出一个用于评估AD患者认知图形的评价分数。具体地，图形认知评估模块104将从触摸区域12捕获到的每一幅临摹图形与其对应的几何图形的几何形状进行比较来识别AD患者画出的每一幅临摹图形的正确性，并统计AD患者正确画出几何图形的数量来计算出AD患者认知图形的评价分数。若临摹图形与其对应的几何图形的几何形状相同或相似，则图形认知评估模块104确定AD患者画出的临摹图形正确；若临摹图形与其对应的几何图形的几何形状不相同也不相似；则图形认知评估模块104确定AD患者画出的临摹图形不正确。评估AD患者认知图形的评价分数可以根据如下评分标准得出：以4个几何图形为例，若有1个图形画得不正确，则评价分数为1分；若有2个图形画得不正确，则评价分数为2分；若有3个图形画得不正确，则评价分数为3分；若所有4个图形画得不正确，则评价分数为4分；若未画出任何几何图形、画得潦草、画了一部分图形、以字代替图形，则评价分数为5分。
步骤S27，根据AD认知量表和评价分数的关系评估AD患者的图形认知能力。具体地，图形认知评估模块104根据AD认知量表和评价分数的关系评估AD患者的图形认知能力。所述AD认知量表和评价分数评的关系定义为：若AD患者的评价分数为1分，则AD患者的认知障碍程度为比较轻度；若AD患者的评价分数为2分，则AD患者的认知障碍程度为轻度；若AD患者的评价分数为3分，则AD患者的认知障碍程度为中度；若AD患者的评价分数为4分，则AD患者的认知障碍程度为比较重度；若AD患者的评价分数为5分，则AD患者的认知障碍程度为严重重度。
本发明所述的阿尔茨海默症患者图形认知能力评估系统及方法，通过在显示屏的显示区域呈现AD患者需要临摹的几何图形，通过语音提示AD患者在显示屏的触摸区域临摹几何图形，并根据AD认知量表和AD患者认知图形的评价分数的关系评估出AD患者的图形认知能力，实现了AD患者图形认知和记忆能力的自动测试，不仅辅助训练AD患者认识事物的认知能力，减少了对AD患者认知能力障碍恢复的人工训练时间，并且增加了训练AD患者认知能力的互动性和娱乐性。
本领域技术人员可以理解，上述实施方式中各种方法的全部或部分步骤可以通过相关程序指令完成，该程序可以存储于计算机可读存储介质中，存储介质可以包括：只读存储器、随机存储器、磁盘或光盘等。
以上仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。
 工业实用性
相较于现有技术，本发明所述阿尔茨海默症患者图形认知能力评估系统及方法，通过在显示屏的显示区域呈现AD患者需要临摹的几何图形，通过语音提示AD患者在显示屏的触摸区域临摹几何图形，并根据AD认知量表和AD患者认知图形的评价分数的关系评估出AD患者的图形认知能力，实现了AD患者图形认知和记忆能力的自动测试，不仅辅助训练AD患者认识事物的认知能力，减少了对AD患者认知能力障碍恢复的人工训练时间，并且增加了训练AD患者认知能力的互动性和娱乐性。

Claims (10)

  1. 一种阿尔茨海默症患者图形认知能力评估系统，应用于便携式电子装置中，该便携式电子装置包括触摸屏和语音播放器，其特征在于，该阿尔茨海默症患者图形认知能力评估系统包括多条计算机程序指令，该便携式电子装置还包括适于实现计算机程序指令的处理器以及适于存储计算机程序指令的存储器，所述计算机程序指令由处理器加载并执行如下步骤：
    从存储器中读取多幅几何图形，并将每一幅几何图形依次呈现在触摸屏的显示区域；
    控制语音播放器播放语音提示患者在触摸屏的触摸区域临摹出呈现在显示区域的每一幅几何图形；
    判断AD患者临摹图形时间是否超过预设时间；
    当AD患者临摹图形时间超过预设时间，从触摸屏的触摸区域捕获AD患者完成的每一幅临摹图形的几何形状；
    识别AD患者画出的每一幅临摹图形的正确性分析出一个用于评估AD患者认知图形的评价分数；
    根据AD认知量表和评价分数的关系评估AD患者的图形认知能力。
  2. 如权利要求1所述的阿尔茨海默症患者图形认知能力评估系统，其特征在于，所述计算机程序指令由处理器加载还执行如下步骤：预先将所述AD认知量表以及多幅供AD患者临摹的几何图形通过所述便携式电子装置的USB端口导入到所述存储器中。
  3. 如权利要求1所述的阿尔茨海默症患者图形认知能力评估系统，其特征在于，所述控制语音播放器播放语音提示AD患者在触摸屏的触摸区域临摹出呈现在显示区域的每一幅几何图形的步骤包括如下步骤：
    当第一幅几何图形呈现在显示区域时，控制播放器播放第一提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第一幅几何图形；
    当第二幅几何图形呈现在显示区域时，控制播放器播放第二提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第二幅几何图形；
    当第三幅几何图形呈现在显示区域时，控制播放器播放第三提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第三幅几何图形；
    当第四幅几何图形呈现在显示区域时，控制播放器播放第四提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第四幅几何图形。
  4. 如权利要求1所述的阿尔茨海默症患者图形认知能力评估系统，其特征在于，所述识别AD患者画出的每一幅临摹图形的正确性分析出一个用于评估AD患者认知图形的评价分数的步骤包括如下步骤：
    将从触摸区域捕获到的每一幅临摹图形与其对应的几何图形的几何形状进行比较来识别AD患者画出的每一幅临摹图形的正确性；
    统计AD患者正确画出几何图形的数量来计算出所述用于评估AD患者认知图形的评价分数。
  5. 如权利要求1至4任一项所述的阿尔茨海默症患者图形认知能力评估系统，其特征在于，所述几何图形包括圆形、两个重叠的长方形、菱形和立方体四种图形。
  6. 一种阿尔茨海默症患者图形认知能力评估方法，应用于便携式电子装置中，该便携式电子装置包括触摸屏、语音播放器以及存储器，其特征在于，该方法包括如下步骤：
    从存储器中读取多幅几何图形，并将每一幅几何图形依次呈现在触摸屏的显示区域；
    控制语音播放器播放语音提示患者在触摸屏的触摸区域临摹出呈现在显示区域的每一幅几何图形；
    判断AD患者临摹图形时间是否超过预设时间；
    当AD患者临摹图形时间超过预设时间，从触摸屏的触摸区域捕获AD患者完成的每一幅临摹图形的几何形状；
    识别AD患者画出的每一幅临摹图形的正确性分析出一个用于评估AD患者认知图形的评价分数；
    根据AD认知量表和评价分数的关系评估AD患者的图形认知能力。
  7. 如权利要求6所述的阿尔茨海默症患者图形认知能力评估方法，其特征在于，所述计算机程序指令由处理器加载还执行如下步骤：预先将所述AD认知量表以及多幅供AD患者临摹的几何图形通过所述便携式电子装置的USB端口导入到所述存储器中。
  8. 如权利要求6所述的阿尔茨海默症患者图形认知能力评估方法，其特征在于，所述控制语音播放器播放语音提示AD患者在触摸屏的触摸区域临摹出呈现在显示区域的每一幅几何图形的步骤包括如下步骤：
    当第一幅几何图形呈现在显示区域时，控制播放器播放第一提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第一幅几何图形；
    当第二幅几何图形呈现在显示区域时，控制播放器播放第二提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第二幅几何图形；
    当第三幅几何图形呈现在显示区域时，控制播放器播放第三提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第三幅几何图形；
    当第四幅几何图形呈现在显示区域时，控制播放器播放第四提示语音提示AD患者用手指头或者触摸笔在触摸区域临摹出第四幅几何图形。
  9. 如权利要求6所述的阿尔茨海默症患者图形认知能力评估方法，其特征在于，所述识别AD患者画出的每一幅临摹图形的正确性分析出一个用于评估AD患者认知图形的评价分数的步骤包括如下步骤：
    将从触摸区域捕获到的每一幅临摹图形与其对应的几何图形的几何形状进行比较来识别AD患者画出的每一幅临摹图形的正确性；
    统计AD患者正确画出几何图形的数量来计算出所述用于评估AD患者认知图形的评价分数。
  10. 如权利要求6至9任一项所述的阿尔茨海默症患者图形认知能力评估方法，其特征在于，所述几何图形包括圆形、两个重叠的长方形、菱形和立方体四种图形。
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