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The zebrafish's neural circuit prevents it from biting off more than it can chew
Date:11/1/2010

is "filtering" of information is that large visual stimuli massively activate the inhibitory cell population and inhibit the output cells, while small moving objects activate only a small number the inhibitory tectal cells, enabling the excitation to drive the output cells efficiently.

This mechanism gives the zebrafish good hunting responses to appropriate visual cues, and thereby helps keep it from biting off more than it can chew.

Isacoff and Baier demonstrated that the inhibition of neural activity by large visual stimuli is essential for hunting prey--as evidenced by the fact that prey capture was disrupted when the inhibitory cells were removed or prevented from emitting neurotransmitters.


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Contact: Lily Whiteman
lwhitema@nsf.gov
703-292-8310
National Science Foundation
Source:Eurekalert  

Page: 1 2

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