Auditory- and movement-related neural activity interact in the pulvinar of the behaving rhesus monkey

Raz Yirmiya*, Shraga Hocherman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


We recorded the activity of 101 pulvinar nucleus neurons in a rhesus monkey performing an auditory discrimination task. The monkey was trained to push a lever to the left after hearing a noise burst and to the right after hearing a tone. When the stimulus was presented every 3 s the auditory evoked potentials (AEPs) habituated very rapidly to about 10% of initial height. With a stimulation rate of 1 every 15 s, however, the AEPs maintained full amplitude. A movement-related increase in firing rate was recorded in 81 units (80%) and could usually be detected 100-200 ms before onset of arm EMG. A stimulus-related firing was detected in 70 units (69%). Most of the stimulus-driven units (65/70) were also movement-driven. No responses correlated to the movement or to the sound stimuli were seen during passive conditions, i.e. when the monkey was not engaged in task performance. The occurrence of both stimulus-and movement-related activity in single pulvinar units suggests sensory-motor interaction possibly related to the decision to perform a certain movement.

Original languageAmerican English
Pages (from-to)93-102
Number of pages10
JournalBrain Research
Issue number1
StatePublished - 27 Jan 1987
Externally publishedYes

Bibliographical note

Funding Information:
We thank Dr. B. Wenzel for her critical review of the manuscript. This work was supported by a grant from the Israeli Fund for Psychobiology.


  • Auditory
  • Behavior
  • Monkey
  • Movement
  • Pulvinar
  • Unit activity


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