85周年校庆学术活动暨第88、89期心理沙龙将于本周四（10月25日）上午和下午分别在学院201举行，本次沙龙我们邀请到了美国密歇根大学医学院Anthony G. Hudetz 教授和黄梓芮博士，以及香港大学心理系胡晓晴助理教授，以下是此次沙龙活动的具体内容。欢迎各位老师和您的研究生参加。
第88期心理沙龙：主讲人：Anthony G. Hudetz教授，黄梓芮博士（密歇根大学医学院）
地点：心理学院201室
时间：2018年10月25日星期四9:30-10:30
题目：无意识的洞察：麻醉诱导的神经元网络活动的瓦解
主讲人：Anthony G. Hudetz 教授（密歇根大学医学院）
时间：2018年10月25日星期四11:40-12:40
题目：结合网络科学与神经影像技术揭示大脑和意识中大规模大脑网络的时间和空间特征
主讲人：黄梓芮博士（密歇根大学医学院）
第89期心理沙龙：主讲人：Anthony G. Hudetz，黄梓芮（密歇根大学医学院）
地点：心理学院201室
时间：2018年10月25日星期四15:00-16:00
题目：Undoing the Unwanted
主讲人：胡晓晴 助理教授（香港大学）
主讲人简介以及讲座内容摘要：
1. Anthony g.Hudetz，D.B.M.,教授，密歇根大学医学院
研究兴趣：
麻醉状态调制的综合机制、人类和动物意识的神经生物学基础、动态大脑功能连通性的神经成像、功能性核磁共振成像的生理基础、大脑皮层过程神经系统的神经科学与感觉整合有关
讲座摘要：
The unity of subjective experience intuitively suggests that some form of integrative brain process underlies normal human consciousness. Integration can be understood in the neurophysiological context as multisensory, sensory-motor, and higher cognitive integration or in the theoretical context as information integration. It occurs in both spatial and temporal dimensions and at various organizational scales of the brain. The brain's capacity for integrating information can be measured via constructs from Information Theory. It has been suggested that consciousness fades when information integration in the brain fails (disintegration). Dreamless sleep, anesthesia, vegetative state, and coma are states in which this hypothesis can be tested. At what level or organization is disintegration causally important for loss of consciousness? We start at the level of neurons and examine the change of their interaction patterns at various levels of sedation. Empirical evidence suggests that in reduced states of consciousness, functional interaction among individual neurons is disrupted. The strength of monosynaptic neuronal interactions is decreased and the continuity of ongoing neuronal activity becomes fragmented. Moreover, the amount of information associated with cortical neuronal interactions is sharply reduced at a critical anesthetic dose. This suggests a rapid onset of disintegration in both spatial and temporal domains. Selective changes in layer-specific information exchange among hierarchical sensory cortical regions are also observed. Together, these findings illuminate the role of neuronal functional disintegration as a mechanism of anesthetic-induced unconsciousness and may reveal some of the critical neuronal functions underlying the conscious state.
2. 黄梓芮：博士后，意识科学中心-密歇根大学医学院
研究兴趣：
意识的神经基质：大规模脑动力学的时空结构和改变、特定的主题全身麻醉一人类和老鼠、神经障碍一植物状态和最小意识状态患者、精神疾病一抑郁和精神分裂症患者、自我意识一自我参照加工和自我意识。
讲座摘要：
The marriage of network science and neuroimaging techniques offers a new avenue in the scientific study of consciousness. The brain activity has been shown to organize into large-scale networks with characteristic spatial architectures such as functional connectivity, modularity, scale-free and small-world properties. These spatial features are crucial for supporting information integration necessary for consciousness. However, little is known about the temporal characteristics (e.g. functional timescales) of large-scale brain networks, and how they are related to consciousness. In this talk, Dr. Huang will elaborate this idea by presenting fMRI data on temporal and spatial alterations of large-scale brain activity during graded sedation with propofol. He will discuss the interplay between intrinsic functional timescales and local/regional/distant functional connectivity during diminished consciousness. Finally, he will introduce a neuroscientific theory of brain and consciousness, temporo-spatial theory of consciousness (TTC), to complement and extend the above discussions.
3. 胡晓晴：密歇根大学心理学系的助理教授，同时也是香港大学大脑与认知科学国家重点实验室的首席研究员。
他获得了西北大学心理学系的大脑、行为和认知（2014）博士学位，他是德克萨斯大学奥斯汀分校心理学系的博士后研究员（2014-2016）。他的研究集中在冲动、记忆和社会偏见的自我调节上。他发表了20多篇关于科学、心理科学、心理科学当前方向、实验心理学杂志：一般等方面的同行评议研究论文，他是瑞士国家科学基金会、FWO的审阅人，以及20多份期刊，包括心理通报、JEP一般、认知、神经影像、睡眠医学评论等
讲座摘要：
Our minds are often haunted by unwanted memories and biases. One shared feature of these unwanted intrusions is that they tend to steer behaviors away from our desired goals in an automatic fashion, despite our best intentions and efforts to control their influences. In this talk, I will present findings regarding the neurocognitive mechanisms that support theregulation of these unwanted influences on behavior, with a particular emphasis on the control of automatic processes underlying these influences. Expanding on this central theme, I will present research on the regulation of unwanted memories and the regulation of implicit social biases. Implications and future directions will be discussed.