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Our brain has switch board to guide behavior in response to external stimuli
Date:2/14/2014

f the habenula in mammals and relays information from the sensory areas to the brain region that regulates animal behavior under stress conditions. In zebrafish, the dHb receives input from cells of the olfactory bulbthus odors can trigger distinct behaviors (e.g. feeding, courtship, alarm).

Spontaneous activity is highly organized

The ongoing spontaneous activity in neurons was thought to be associated with several neurological phenomenons, such as sleep, or the learning and sensory process. The researchers observed that dHb is highly active even in the absence of any sensory stimulation. Moreover they showed that the spontaneous activity of dHb is not random but highly structured in the spatial clusters of neurons. Later the team showed that this spontaneous activity is very prominent during sensory stimulation and governs the odor responses in the dHb. The scientists their conclusion is that dHb acts like a switch board for the sensory information and is controlled by spontaneous activity.


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Contact: Kris Van der Beken
kris.vanderbeken@vib.be
32-473-783-435
VIB (the Flanders Institute for Biotechnology)
Source:Eurekalert

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