Workload assessment method for diagnosis of patients with mild cognitive impairment

Abstract

The invention discloses a workload assessment method for diagnosis of patients with mild cognitive impairment. The method comprises the following steps: step 1, evaluating an experiment normal form based on a workload of Oddball; step 2, data acquisition; step 3, data preprocessing; and step 4, an MCI patient diagnosis method based on MCI-WI is carried out. According to the method, the Oddball-based workload evaluation normal form is designed by referring to the control type workload evaluation normal form, so that the workload difference of MCI patients and healthy old people in the aspect of cognition is more obvious, errors are reduced, the diagnosis accuracy of the MCI patients is improved, and the defects of low efficiency and low accuracy of the conventional normal form are optimized. Secondly, in consideration of cognitive differences between MCI patients and healthy old people, workload evaluation indexes oriented to MCI patient diagnosis are provided, electroencephalogram data and behavioral data are comprehensively considered, workloads of testees in different stages of tasks are quantified, and the workload change conditions of the testees are visually displayed.

Description

technical field [0001] The invention relates to the neuroelectrophysiological signal analysis technology in the field of brain cognitive computing, and the behavior evaluation and physiological evaluation technology in the field of mental workload evaluation, and provides a workload evaluation method for the diagnosis of mild cognitive impairment patients. A method for analyzing electroencephalogram (EEG) and behavioral data for workload assessment in patients with mild cognitive impairment (MCI), by using the proposed experimental paradigm and workload indicators for cognitive aspects Workload assessment can effectively solve the screening and diagnosis of MCI patients and provide a key window for clinical treatment intervention. Background technique [0002] Alzheimer's disease (AD) is a neurodegenerative disorder characterized by cognitive impairment, while mild cognitive impairment (MCI) is an intermediate between expected normal aging and more severe dementia The inter...

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Problems solved by technology

[0007] In addition, due to the development of EEG acquisition technology, the existing EEG acquisition equipment usually records signals from multiple electrodes in different brain regions, ranging from 32 electrodes to as many as 256 electrodes, and there is inevitably data redundancy. problem, greatly increasing the amount of EEG data that needs to be analyzed, and increasing the computational complexity

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