Cognitive function evaluation method based on Stroop color word test and near-infrared brain function imaging

Abstract

The invention relates to a cognitive function evaluation method based on Stroop color word testing and near-infrared brain function imaging. The cognitive function evaluation method is technically characterized by comprising the following steps: acquiring light intensity data of brain tissues of prefrontal lobes on two sides and a Stroop color word testing result of a subject in the Stroop color word testing process through a functional near-infrared imaging system; converting the light intensity data of the subject into brain physiological information data, and calculating the intensity of a double-forehead area; according to the method, the subjects which have cognitive function decline or poor cognitive states and cannot be well matched to complete traditional neuropsychological scale evaluation are tested; and comparing the Stroop color word test results of the subject and the normal person and whether the intensity of the double-forehead region is obviously different, and analyzing the correlation between the Stroop color word test results and the intensity of the double-forehead region and the MoCA score. According to the method, the Stroop color word test and near-infrared brain function imaging technology are adopted, the cognitive function is evaluated through brain function connectivity, the test result is accurate and reliable, the test process is simple, and a subject can easily complete the test.

Description

technical field [0001] The invention belongs to the technical field of brain function testing, in particular to a cognitive function evaluation method based on Stroop color word test and near-infrared brain function imaging. Background technique [0002] Human cognitive function is closely related to the dynamic functional connectivity and integration between different brain regions of the human brain neural network, and the state of brain functional network is mainly characterized by brain functional connectivity. Brain functional connectivity under cognitive tasks is a temporal correlation-based coordinated response between different neural modules in the cerebral cortex when completing cognitive tasks. Brain functional connectivity is usually measured by oxyhemoglobin (HbO 2 ) concentration to calculate. [0003] The Stroop color word test is a high-level cognitive processing process in which individuals are responsible for organizing and controlling goal-directed behav...

AI Technical Summary

Problems solved by technology

Existing brain function tests usually use nuclear magnetic resonance methods. Functional magnetic resonance has been unanimously recognized for its high spatial resolution and ability to detect the whole brain. Examination, it is difficult to evaluate the brain function under the task state

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