Speaker: 

Professor Nicholas B. Turk-Browne

Department of Psychology, Yale University, New Haven CT06520, USA

Title: "Statistical learning in the hippocampus"

Abstract: There is a fundamental tension in human memory between encoding episodic memories for individual experiences from life and extracting statistical regularities that hold across these experiences. The tension arises from the fact that these two forms of learning have opposite computational requirements: episodic memory requires rapid, even one-shot learning of representations stored separately from related memories to avoid interference; statistical learning accumulates gradually over time by strengthening common elements that overlap across representations. For this reason, it has long been thought that memory is supported by a division of labor in the brain, with the hippocampus supporting episodic memory and the neocortex supporting statistical learning. In this talk I will present a series of converging findings from fMRI, neuropsychological patients, intracranial recordings, and neural network modeling that challenge this elegant and influential theory. Namely, I will show that the hippocampus is involved in and may be necessary for statistical learning and will provide an updated theoretical account about how the same hippocampal system implements these competing computations across different subfields and pathways. I will end with some counterintuitive findings that arise from this perspective about behavior and development.

 

About Neuroscience Seminars

Neuroscience seminars at the QBI play a major role in the advancement of neuroscience in the Asia-Pacific region. The primary goal of these seminars is to promote excellence in neuroscience through the exchange of ideas, establishing new collaborations and augmenting partnerships already in place.

The scheduled QBI Neuroscience Seminar series are held on Wednesdays from 11am-12pm in the Level 7 Auditorium of the Queensland Brain Institute, Building 79, St Lucia Campus, The University of Queensland. Additional seminars may be held at other times as listed below.

 

Neuroscience Seminars archive 2005-2016