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The neurobiological consequence of predating or grazing
Date:1/17/2013

ria, their only food source. In P. Pacificus, which does not have a grinder, some of the muscle cells have lost synaptic connections with neurons.

"The patterns of synaptic connections perfectly mirror the fundamental differences in the feeding behaviours of P. pacificus and C. elegans", Ralf Sommer concludes. A clear-cut result like that was not what he had necessarily expected. Previous studies in much simpler neural circuits - as in the marine snail Aplysia had indicated that changes in behaviour do not have to coincide with changes in number and location of synapses. Differences in physiological properties of neurons or in their modulation by neurotransmitters can be sufficient to effect behavioural changes.


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Contact: Ralf J. Sommer
ralf.sommer@tuebingen.mpg.de
49-707-160-1371
Max-Planck-Gesellschaft
Source:Eurekalert  

Page: 1 2 3

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