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Serotonin is widely implicated in aversive processing. It is not clear, however, whether serotonin neurons encode information about aversive stimuli. We found that, in the dorsal raphe of anesthetized rats, most neurochemically-identified clocklike serotonin neurons were phasically excited by noxious footshocks, whereas most bursting serotonin neurons were inhibited. These results suggest that discrete groups of serotonin neurons differentially code for aversive stimuli.

Original publication

DOI

10.1016/j.neuroscience.2010.09.058

Type

Journal article

Journal

Neuroscience

Publication Date

29/12/2010

Volume

171

Pages

1209 - 1215

Keywords

Action Potentials, Animals, Electroshock, Male, Neurons, Physical Stimulation, Raphe Nuclei, Rats, Rats, Sprague-Dawley, Serotonin, Tryptophan Hydroxylase