实验室邀请了中科院神经科学研究所的研究员Dr. Mike Dorris做报告，欢迎感兴趣的老师和同学参加。
报告时间：4月3日下午2:00-3:30
报告地点：脑成像中心308会议室（大会议室）
报告题目：Orienting Fast and Slow: When does the tectum relay decisions and when is it the decider?
报告摘要：
The vertebrate tectum is critical for orienting the eyes, head, body and specialized organs towards targets of value. In fish, frogs and birds the tectum is often the largest brain structure. In primates, tectal size is greatly reduced but it remains a critical orienting structure largely by integrating a wide variety of sensory and cognitive inputs from the evolutionarily recent neo-cortex. Does the evolutionarily old tectum still decide where to orient or does it simply enact decisions already completed by the neo-cortex? We are currently examining three conditions in which the tectum may be heavily involved in the decision-making process. 1) Urgency – Under time pressure, the tectum may choose fast (albeit inaccurate!) responses before deliberation is finished in the cortex. 2) Nash Equilibrium – The cortex biases competition within the tectum towards higher valued options, however, during mixed-strategy interactions, noise within the tectum may result in stochastic choices. 3) Individual Item from a Particular Good – Once the most valued good is identified by cortex, the particular item from that good may be selected by tectal mechanisms. Together, cortical structures may provide primates with increased flexibility in decision-making while primitive tectal circuitry provides speed and automaticity.