| 研究生: |
丁于庭 Ting, Yu-Ting |
|---|---|
| 論文名稱: |
像臉物體在臉孔及物體選擇區反應關係探討:一個fMRI的研究 Interaction Between Face- and Object-Selective Regions by Face-Like Objects – An fMRI study |
| 指導教授: |
龔俊嘉
Kung, Chun-Chia |
| 學位類別: |
碩士 Master |
| 系所名稱: |
社會科學院 - 認知科學研究所 Institute of Cognitive Science |
| 論文出版年: | 2010 |
| 畢業學年度: | 98 |
| 語文別: | 中文 |
| 論文頁數: | 47 |
| 中文關鍵詞: | 臉孔選擇區 、物體選擇區 、像臉物體 、功能性核磁共振造影 |
| 外文關鍵詞: | FFA, LOC, Face-like objects, fMRI |
| 相關次數: | 點閱:91 下載:14 |
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在我們的日常生活中,許多物體會有”兩個眼睛在上面,一個嘴巴在下面”這種看起來像臉的結構。在一個MEG的研究中,Hadjikhani(2009)發現受試者的臉孔選擇區-FFA對於像臉物體的反應與臉孔相似,提供了第一個對像臉物體的神經科學證據。然而,像臉物體在本質上依然是物體,所以他應該也會引發物體選擇區-LOC的反應。為了探討FFA與LOC在看像臉物體時的關係,我們使用行為實驗與功能性核磁共振造影(fMRI)實驗。受試者在fMRI實驗中分別對刺激圖片做臉孔/物體以及像臉/不像臉的判斷。首先,行為實驗的結果顯示像臉物體的平均反應時間顯著長於臉孔及物體,顯示像臉物體額外的反應衝突時間。第二,fMRI實驗結果顯示,當受試者做不同的判斷時,作業要求不同會影響大腦在臉孔與物體選擇區的神經反應。
In daily lives, many objects with their “two-eyes-on-top, one-mouth-below" configurations, look like human faces. In one MEG study, Hadjikhani (2009) found that subjects' face-selective region-FFA, responded similarly to those “face-like objects" as to faces, providing the first neuroscientific support of those “face-likeness” impressions. However, face-like objects are by default objects, so they should active object-selective region-LOC as well. To investigate the interaction between FFA and LOC in viewing face-like objects, we use behavioral and fMRI methods to disentangle their relations. Subjects do speeded face/object and facelike/non-facelike judgments in fMRI experiments. First, the behavioral results show that the reaction time of face-like objects are significantly longer than that of faces or objects, suggesting the extra conflict reaction time of facelike-objects. Second, the fMRI experiment shows that when using different judgments, task demands would affect brain neuron responses in face- and object- selective regions.
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