摘要：

我們是如何在意識中偵測、辨識出視野中的一個物體的（從紛雜的畫面中，判斷哪個部份是物品，並與背景或其他景物區分開來）？關鍵之一，就是要確定輸入的視覺刺激中，哪些邊界是一個物體的邊緣範圍。20 世紀的主流觀點認為，大腦偵測目標物體的歷程完全只基於影像特徵的前饋處理（僅由視覺刺激的輸入與前傳，便決定了物體的偵測）。但我實驗室的研究則支持了另一種觀點，即觀看者的過去經驗也是影響重要因素之一，且在有意識的物體辨識之前是有模糊歧義的可能的。即，在邊界兩側分別可能的物體會競爭來被感知到，它們的意義及形狀在還未被有意識辨識前即會被激發。因此在物體被偵測之前，反饋以及前饋處理的過程就同時都存在了。我們發現即使是在有幾乎都很一致的感知結果的情況下，模糊歧義仍然會發生並在無意識中得到解決。這些發現支持了一種貝氏理論的解釋，亦即皮質－皮質和皮質－丘腦的反饋先於物體的辨識。本次演講將分享我們實驗室發現的證據。

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Information in English:

We are honored to welcome Dr. Mary Peterson, Emeritus Professor and Director of the Cognitive Science Program at the University of Arizona, to deliver a special lecture at the Department of Psychology, NCKU. Dr. Peterson's research primarily focuses on visual perception in psychology, particularly on issues related to figure-ground processing, and has produced many revolutionary academic insights. She is also a world-renowned scholar in psychology, having been elected a fellow of several prestigious organizations including the American Association for the Advancement of Science (AAAS) and the American Psychological Association (APA). She is widely acclaimed for her efforts in promoting diversity, equity, and inclusion within academia, as well as for her exceptional academic mentorship.

We sincerely invite you to attend this grand academic event to delve deep into the mysteries of object recognition and perceptual psychology. We look forward to your participation to share valuable academic insights and inspiration!