Max Planck Institute for Dynamics and Self-Organization -- Department for Nonlinear Dynamics and Network Dynamics Group
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BCCN AG-Seminar

Tuesday, 07.07.2009 17 c.t.

Encoding of Color Information by the Retina

by Dr. Ronen Segev
from Department of Life Sciences, Ben-Gurion University of the Negev, Israel

Contact person: Demian Battaglia

Location

Seminarraum Haus 2, 4. Stock (Bunsenstr.)

Abstract

The conventional approach to investigate the neural code was based on the comparison of psychophysical accuracy with information content of the neural response. Traditionally, information content of the neural response was quantified using the statistics of the neural responses relative to stimulus onset time. The underlying assumption of this approach is that the brain can use stimulus onset time in order to infer stimulus identity. However, stimulus onset time must also be estimated by the brain, making the utility of such an approach questionable. How can stimulus onset time be estimated from the neural responses with sufficient accuracy to enable stimulus identification? We addressed this question using the framework of colour coding by the archer fish retinal ganglion cells.

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