Brain Dynamics Related to Decision Making Process based on Spatial Navigation Information

• Main Authors: Wang, Chi-Hsiang, 王祈翔
• Other Authors: Lin, Chin-Teng
• Format: Others
• Language: en_US
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/39155612522355373885

碩士 === 國立交通大學 === 生醫工程研究所 === 99 === Previous studies of EEG changes in decision-making process, often focus on the event-related potential related to feedback, and the content of the experimental is usually purely numeric gambling task. We build a virtual environment for participants to acquire spatial information and to form the inner map of the maze by navigating inside. A binary choice task is perform after the training session. Participants have to use the spatial information, memory retrieval to complete the EEG experiment. In behavior results, a significant difference between correct and incorrect trials in response time is that the incorrect trials take subject longer time to response. In EEG analysis, results of ICA and ERSP show that there are theta waves in frontal and central lobe cortex, and alpha suppression in parietal lobe.