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A method for fMRI identification of camouflaged cognitive dysfunction

A technology of cognitive dysfunction and identification method, which is applied in the field of fMRI identification of fake cognitive dysfunction, and can solve problems such as reports that have no practical application

Active Publication Date: 2016-07-06
SUN YAT SEN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, my country's research on fMRI polygraph detection and fraud detection technology is still in the laboratory stage, and the research data are all based on the average level of the group, so far there is no report of practical application

Method used

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  • A method for fMRI identification of camouflaged cognitive dysfunction
  • A method for fMRI identification of camouflaged cognitive dysfunction
  • A method for fMRI identification of camouflaged cognitive dysfunction

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Experimental program
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Embodiment Construction

[0032] 1. The commonly used equipment for fMRI disguised cognitive impairment identification technology includes:

[0033](1) 1.5T or 3.0T magnetic resonance scanner: equipped with standard head coil and echo planar (EPI0) system; 1.5T scanning parameters: ① Two-dimensional structural image: SE sequence T1WI, axial, TR505ms, TE14ms, Flip angle 90 degrees, slice thickness 6mm, spacing 0mm, number of slices 20, field of view 230mm×230mm, matrix 256×256; ②Three-dimensional whole-brain structural image: fast low angle shot FLASH T1WI, sagittal plane , TR30ms, TE3.0ms, flip angle 30 degrees, slice thickness 1.3mm, spacing 0mm, slice number 120, matrix 256×256; ③ Functional image: using gradient echo-planar imaging (gradient-echo, echoplannarimaging, GE -EPI) sequence T2*WI, axial position, TR2000ms, TE45ms, flip angle 90 degrees, layer thickness 6mm, spacing 0mm, field of view 230mm×230mm, matrix 64×64, number of layers 20, number of frames 189 frames / layer, long time 378s.

[00...

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Abstract

The invention discloses an fMRI (Functional Magnetic Resonance Imaging) identification method for disguised cognition impairments. Common equipment and common programs needed by a technical system mainly comprise a 1.5T or 3.0T magnetic resonance scanner (configured with a standard head coil and an EPI0 (Echo Planar Imaging) system), stimulation task compiling software E-prime, a digital binomial required memory tester, a visual stimulation presentation and reaction signal receiving system, and AFNI (Analyses of Functional Neuroimages) software based on a Linux operating system. The invention provides an individual identification method for objectively and accurately identifying the disguised cognition impairments. The method can be used for judicial expertise working practices and is particularly applicable to identification of disguised memory injuries in evaluation of mental injuries and mental impairments.

Description

technical field [0001] The invention relates to the technical field of identification of mental loss, in particular to an fMRI identification method for fake cognitive dysfunction. Background technique [0002] In recent years, in the field of forensic psychiatry, there has been an increasing trend of criminal and civil appraisal cases involving mental damage or mental disability year after year, and a considerable part of them is to assess the degree of cognitive impairment of the appraised person after injury. How the judicial appraiser confirms whether the party's memory impairment is authentic or not depends mainly on the subjective effort (or cooperation) of the subject on the memory test. Traditional mental examinations and psychological tests are affected by the subjective attitudes of the subjects and experts, and lack objective detection techniques. So far, the technologies related to camouflage recognition mainly include traditional polygraph technology (polygraph...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/055A61B5/16
CPCA61B5/055A61B5/16A61B5/165
Inventor 赵虎薛丽时燕薇
Owner SUN YAT SEN UNIV
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