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JST Press Release

13th May 2013
Japan Science and Technology Agency (JST)
5-3, Yonbancho, Chiyoda-ku, Tokyo 102-8666
URL http://www.jst.go.jp/EN/index.html

A Novel type of confidence revealed by neural activities of the primate pulvinar

The primate pulvinar, a visual thalamic region, has showed remarkable expansion through evolution. However, its functional role has been enigmatic. Here, using a combination of neural recordings, pharmacological inactivation and computational modeling, we found that responses of pulvinar neurons encode a subjectís certainty of visual categorization and contribute to perceptual confidence. The current findings can open a new window for unraveling the neural mechanisms of normal and disordered sensory awareness.

Researcher Information

JST PRESTO
Research Area : “The Dynamic Mechanism of and Fundamental Technology for Biological System”
Research Theme :“Decision mechanism bridging the parallel and hierarchic gap in the primate brain”

Journal Information

Yutaka Komura, Akihiko Nikkuni, Noriko Hirashima, Teppei Uetake & Aki Miyamoto. “Responses of pulvinar neurons reflect a subject's confidence in visual categorization”
Nature Neuroscience, Published online 12 May 2013
doi: 10.1038/nn.3393

Contact

[About Research]
Yutaka Komura, Ph.D.
Pricipal Investigator, Human Technology Research Institute, AIST
E-mail:
URL: http://unit.aist.go.jp/htri/ht-sys-neuro/index_e.htm

[About Program]
Takafumi Kawaguchi, Fumiharu Kimura,
Life Science Group, Department of Innovation Research,
Japan Science and Technology Agency
E-mail:

Japanese


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