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Tonically discharging neurons of monkey striatum respond to preparatory and rewarding stimuli.
Journal article

Tonically discharging neurons of monkey striatum respond to preparatory and rewarding stimuli.

  • 1991-01-01
Published in:
  • Experimental brain research. - 1991
Acoustic Stimulation
Animals
Caudate Nucleus
Corpus Striatum
Macaca fascicularis
Movement
Neurons
Photic Stimulation
Putamen
Reward
English The behavioral relationships of 396 striatum neurons with regular, tonically elevated discharge rates were studied. While monkeys performed a delayed gonogo task, neurons predominantly located in medial putamen responded with phasic depressions (n = 30) or activations (n = 5) to task-specific stimuli. Particularly effective was an instruction light preparing for movement or no-movement reactions, and an auditory signal associated with reward delivery. Stimuli triggering arm or mouth movements were less effective. The data demonstrate that these usually poorly modulated neurons display context-dependent phasic activity in specific behavioral situations.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://folia.unifr.ch/global/documents/289440
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