標題: Alpha modulation in parietal and retrosplenial cortex correlates with navigation performance
作者: Chiu, Te-Cheng
Gramann, Klaus
Ko, Li-Wei
Duann, Jeng-Ren
Jung, Tzyy-Ping
Lin, Chin-Teng
生物科技學系
腦科學研究中心
Department of Biological Science and Technology
Brain Research Center
關鍵字: Spatial navigation;Allocentric;Egocentric;Reference frame;Electroencephalography (EEG);ICA
公開日期: 1-一月-2012
摘要: The present study investigated the brain dynamics accompanying spatial navigation based on distinct reference frames. Participants preferentially using an allocentric or an egocentric reference frame navigated through virtual tunnels and reported their homing direction at the end of each trial based on their spatial representation of the passage. Task-related electroencephalographic (EEG) dynamics were analyzed based on independent component analysis (ICA) and subsequent clustering of independent components. Parietal alpha desynchronization during encoding of spatial information predicted homing performance for participants using an egocentric reference frame. In contrast, retrosplenial and occipital alpha desynchronization during retrieval covaried with homing performance of participants using an allocentric reference frame. These results support the assumption of distinct neural networks underlying the computation of distinct reference frames and reveal a direct relationship of alpha modulation in parietal and retrosplenial areas with encoding and retrieval of spatial information for homing behavior.
URI: http://dx.doi.org/10.1111/j.1469-8986.2011.01270.x
http://hdl.handle.net/11536/15306
ISSN: 0048-5772
DOI: 10.1111/j.1469-8986.2011.01270.x
期刊: PSYCHOPHYSIOLOGY
Volume: 49
Issue: 1
起始頁: 43
結束頁: 55
顯示於類別:期刊論文


文件中的檔案:

  1. 000298593800005.pdf