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以事件相關腦電位探討二維和三維圖形辨識之研究
(
國立臺灣師範大學
,
2012-06-??
)
劉寶元
;
劉嘉茹
;
Bao-Yuan Liu
;
Chia-Ju Liu
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本研究旨在以事件相關腦電位探討二維與三維圖形辨識作業的腦機制,以瞭解不同維度的圖形辨識中大腦運作的異同。研究分別以二維和三維圖形設計任務刺激進行實驗,並同步蒐集受試者之腦波進行離線分析。研究對象為20 位自願參加的高中職學生。研究結果發現,二維圖形的答對優於三維圖形,反應時間也比三維圖形短;二維與三維圖形在中線區的N1振幅和P300 振幅有差異;在枕顳區的P1 振幅與潛伏期有差異。因此,研究推論由視網膜傳遞不同維度的視覺訊息在視知覺的成分上已經有差異,三維圖形在視網膜上不僅只是投射二維的視覺訊息,而是有更多的視覺訊息誘發大腦的運作。本研究提供圖形辨識歷程神經生理的證據。
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