本文選題：面孔身份加工 + RSVP��； 參考：《蘇州大學》2014年碩士論文

【摘要】：大量研究已經(jīng)從神經(jīng)機制等方面揭示了面孔身份和表情加工的一些重要特點。但是注意與面孔加工的關系還沒有得到充分研究，并且至今仍然存在較大的爭議。目前對注意與面孔加工關系的研究主要從注意的空間角度入手，考察注意對面孔加工的影響，通常采用的范式是視覺搜索任務，然而這種范式無法考察注意時間維度方面對面孔身份加工的影響。為了進一步揭示注意與面孔身份加工的關系，我們通過快速序列視覺呈現(xiàn)范式任務進行行為實驗和ERP實驗，從時間維度考察注意對面孔身份加工的影響。 本研究得到了如下結論： （1）面孔作為特殊意義的刺激，在快速序列視覺呈現(xiàn)任務中能夠出更準確的被被試識別，同時會誘發(fā)比非面孔圖片更大的P1、VPP、N170、P3成分和潛伏期更短的N1波幅。 （2）在快速序列視覺呈現(xiàn)任務中，面孔和非面孔圖片都出現(xiàn)了注意瞬脫現(xiàn)象，表明面孔加工與其他相同復雜的刺激類型一樣，都需要注意的參與。 （3）與非面孔圖片相比，P1和N1成分對面孔身份圖片更加敏感，表明對面孔的加工從注意早期選擇階段開始就與其他類型刺激有所不同。 （4）P3成分受到注意資源調(diào)節(jié)的影響，注意資源越緊缺任務越難，P3成分波幅越小，雙任務和長時間隔條件比單任務和短時間隔條件誘發(fā)的P3成分波幅更小。 （5）面孔身份加工中的N170、VPP成分對注意資源的變化非常敏感，N170和VPP的波幅和潛伏期都受到間隔的影響，N170波幅同時還受到單、雙任務的影響，注意資源相對充足的條件下會誘發(fā)更大的VPP和N170波幅以及更短的潛伏期，說明注意資源對面孔的加工產(chǎn)生了很大的影響，注意資源的缺乏會導致對面孔結構編碼更加困難。
[Abstract]:A large number of studies have revealed some important features of facial identity and facial expression processing. However, the relationship between attention and face processing has not been fully studied, and is still controversial. At present, the research on the relationship between attention and face processing mainly starts from the spatial perspective of attention, and examines the influence of attention on the processing of opposite holes. The normal paradigm is visual search task. However, this paradigm cannot examine the effect of time dimension on face identity processing. In order to further reveal the relationship between attention and face identity processing, we conduct behavioral experiments and ERP experiments through fast sequence visual presentation paradigm tasks to investigate the effects of attention on face identity processing from the time dimension. The conclusions of this study are as follows: (1) as a special stimulus, the face can be identified more accurately in the task of fast sequence visual presentation, and it can also induce a larger P1VPPN170 P3 component and a shorter N1 wave amplitude than the non-face image. (2) in the task of fast sequence visual presentation, both face and non-face images show attention transient phenomenon, which indicates that face processing needs attention participation just like other complex stimuli. (3) compared with non-face images, P1 and N1 components are more sensitive to face identity images, indicating that the processing of faces is different from other types of stimuli from the early stage of attention selection. The P3 component is affected by the regulation of attention resources. The more scarce the attention resources, the more difficult it is to reduce the amplitude of P3 component. The amplitude of P3 component is smaller under the condition of double task and long time interval than that induced by single task and short time interval. (5) the N170 VPP component in face identity processing is very sensitive to the change of attention resources. Both the amplitude and latency of N170 and VPP are affected by the interval and the amplitude of N170 is also affected by single and double tasks. Attention resources can induce larger VPP and N170 amplitudes and shorter latencies, which indicates that attention resources have a great influence on face processing, and the lack of attention resources will make it more difficult to encode face structure.
【學位授予單位】：蘇州大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：B842

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本文編號：1862959