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演題詳細

Symposium

脳神経回路の相互作用による行動の統合機能
Integrative function of higher-order behaviors through interaction of brain neural circuitry

開催日 2014/9/11
時間 17:00 - 19:00
会場 Room B(501)
Chairperson(s) 喜田 聡 / Satoshi Kida (東京農業大学 応用生物科学部バイオサイエンス学科 / Department of Bioscience, Tokyo University of Agriculture, Japan)
小林 和人 / Kazuto Kobayashi (福島県立医科大学 医学部 生体機能研究部門 / Department of Molecular Genetics, Fukushima Medical University, Japan)


The representational-hierarchical organization of cognition

  • S1-B-3-3
  • Tim Bussey:1 
  • 1:University of Cambridge, UK 

The prevailing view in cognitive and behavioural neuroscience is that the brain is composed of a number of different modules, each of which is responsible for a different cognitive function, including different types of memory. For example it is thought that the medial temporal lobe (MTL) includes several structures—the hippocampus, and the adjacent perirhinal, entorhinal and parahippocampal cortices—that have been associated with memory for at least the last fifty years. These components of the putative “MTL memory system” are thought to operate together in the service of declarative memory -- memory for facts and events – having little role in other functions such as perception. Object perception, on the other hand, is thought to be independent of the MTL, and instead is usually considered to be the domain of the ventral visual stream (VVS) or “what” pathway. An increasingly validated view, however, suggests that the brain may more usefully be thought of as being organised, not in terms of modules which mediate different high-level functions such as memory, perception, and so forth, but in terms of the representations which these regions support, organised in a hierarchical system of increasing complexity. According to this view, a given representation – and thus brain region -- could be useful for myriad different functions. In my talk I will describe this view and how it explains phenomena following brain injury, including ‘false recognition’ and alterations in pattern separation.

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