Functional Near-Infrared Spectroscopy Extracts EROS in the Prefrontal Cortex

기능성 근적외선 분광기를 이용한 전전두엽 영역에서의 사건 기반 뇌활성 특이 신호의 추출

  • Published : 2009.01.01

Abstract

In this study event-related optical signals were extracted from the prefrontal cortexes using functional near infrared spectroscopy while subjects were carrying out 2-back working memory tasks. Four events such as start, yes, no, and error were considered based on the onsets of the stimulus, positive true responses, positive false responses, and negative responses in the 2-back working memory task, respectively. The optical signals recorded were analyzed by peri-event histograms and power spectrum distributions. The results showed specific characteristics of the event-related optical neuronal signals and an opened possibility of an application to control a non-invasive brain-computer interface system or an object of a virtual reality.

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