Tailoring of variability in the lateral geniculate nucleus of the cat |
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| Authors: | Michael W Levine Brian G Cleland Pratik Mukherjee Ehud Kaplan |
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| Institution: | (1) Department of Psychology, M/C 285, University of Illinois at Chicago, 1007 West Harrison Street, Chicago, IL 60607-7137, USA, US;(2) Department of Physiology, University of Sydney, New South Wales, Australia, AU;(3) Cornell University Medical College, New York, USA, US;(4) Biophysics Laboratory, The Rockefeller University, New York, USA, US |
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| Abstract: | Variability is usually considered an unwanted component in a sensory signal, yet the visual system does not seem to filter
out the noise. On the contrary, noise is ‘tailored’ to scale with the signal size. We show that this tailoring occurs in the
lateral geniculate nucleus, preferentially in X-cells, which are the cells most likely to transmit pattern information. Tailoring
the variability to the signal size may be the visual system’s way of providing the right amount of variability for a signal
of any magnitude at all times during the computation.
Received: 13 November 1995/Accepted in revised form: 20 May 1996 |
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