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系統識別號 U0026-2508201017264000
論文名稱(中文) 注意力對鳥類專家臉孔選擇區的影響:專家假說的進一步檢驗
論文名稱(英文) The effect of attention in face selective areas of bird experts: reexamining the expertise hypothesis
校院名稱 成功大學
系所名稱(中) 認知科學研究所
系所名稱(英) Institute of Cognitive Science
學年度 98
學期 2
出版年 99
研究生(中文) 蔡育蓁
研究生(英文) Yu-Jen Tsai
電子信箱 u7696104@mail.ncku.edu.tw
學號 U7696104
學位類別 碩士
語文別 中文
論文頁數 56頁
口試委員 口試委員-姜自強
口試委員-陳佳如
指導教授-龔俊嘉
中文關鍵字 梭狀迴臉孔選擇區  注意力  功能性磁振造照 
英文關鍵字 fusiform face area  attention  fMRI 
學科別分類
中文摘要   在臉孔辨識過程中,我們大腦的顳葉底部梭狀迴臉孔選擇區(Fusiform Face Area, FFA)會有相對活化的現象,目前對於FFA功能的解釋有二種,一種是「臉孔專門性」主張FFA是專門處理人臉的重要區域,另一種「知覺專家性」則主張FFA可能因大量經驗累積而具備的知覺專家性,即領域專家在辨識其熟悉領域的物件時FFA會產生活化反應。McKone等人(2007)認為領域專家在看到他們熟悉的物件或感興趣的物件時,FFA的反應不過是因為投入較多的注意力所引起的活化現象,依此說法,可以推論在忽略鳥類圖片的時候,專家的FFA反應量應該不會出現,或是專家和生手在忽略鳥類圖片的實驗狀況下之FFA反應量會很接近。
  本研究進一步檢驗此看法,探討視覺注意力對鳥類專家和不具賞鳥經驗的生手,辨識圖片刺激(臉孔、鳥類、汽車),以及「注意圖片」和「忽略圖片」的實驗情況下之FFA反應。研究結果顯示,鳥類專家和生手對於鳥類圖片和汽車圖片的專注辨識,同樣會產生FFA活化反應,FFA在忽略鳥類圖片和汽車圖片時,也會出現活化狀態,而且在忽略左右鳥類圖片或汽車圖片的實驗狀況,專家和生手的臉孔選擇區平均反應量並不相同。本研究結果支持FFA對於臉孔刺激會出現明顯活化反應的臉孔專門性主張,但是,與McKone等人(2007)對知覺專家性的看法有所差異。
英文摘要   Fusiform face area (FFA) is activated in human ventral temporal cortex during the process of face recognition. FFA is associated with at least two possible accounts: “face specificity” which claims that FFA is an area specialized for face recognition, and “perceptual expertise” which claims that FFA may possess perceptual expertise through experience. One recent claim made by supporters of the face specificity was that when experts see objects in their expertise domain, the increased FFA response is an “overall increased attentional engagement for these stimuli” (McKone et al., 2007). If this hypothesis is correct, we shall predict that if experts and novices see the stimuli of expertise inattentively, there should be not much difference in activation in FFA between them.
  In this study, we test this hypothesis by asking bird experts and novices to engage (and disengage) their attention from faces, bird, and car images. The results showed that for experts and novices, FFA was activated under bird-attended and car-attended conditions. FFA was also activated under bird-unattended and car-unattended conditions, and the activation was different between the experts and the novices. Furthermore, our results support that FFA was responsible for face recognition in face specificity assertion, but inconsistent with the claim of McKone et al. (2007).
論文目次 摘要 I
ABSTRACT II
誌謝 III
目錄 IV
圖目錄 V
第一章 緒論 1
1.1 前言 1
1.2 臉孔專門性(face specificity) 4
1.3 知覺專家性(perceptual expertise) 7
1.4 注意力的fMRI研究 11
1.5 研究目的及實驗假設 12
第二章 實驗方法 15
2.1 受試者 15
2.2 實驗材料 15
2.3 實驗儀器 15
2.4 實驗程序 17
2.5 實驗設計 18
2.5.1 主實驗 18
2.5.2 鳥類辨識實驗 19
2.5.3 定位實驗 20
第三章 實驗結果 22
3.1 答對率 22
3.2 反應時間 25
3.3 fMRI個別分析:平均時間序列反應 26
3.4 fMRI個別分析:PSC(percent signal change)分析 27
3.5 fMRI個別分析:AUC(area under the curve)分析 32
3.6 fMRI團體分析(Group Analysis) 36
第四章 討論 39
參考文獻 42
附錄 47
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