Functional MRI of the vocalization-processing network in the macaque brain

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • Georgetown University
  • Technische Universität München
  • Max Planck Institute for Biological Cybernetics
  • International Max Planck Research School for Cognitive and Systems Neuroscience
  • University of Antwerp

Abstract

Using functional magnetic resonance imaging in awake behaving monkeys we investigated how species-specific vocalizations are represented in auditory and auditory-related regions of the macaque brain. We found clusters of active voxels along the ascending auditory pathway that responded to various types of complex sounds: inferior colliculus (IC), medial geniculate nucleus (MGN), auditory core, belt, and parabelt cortex, and other parts of the superior temporal gyrus (STG) and sulcus (STS). Regions sensitive to monkey calls were most prevalent in the anterior STG, but some clusters were also found in frontal and parietal cortex on the basis of comparisons between responses to calls and environmental sounds. Surprisingly, we found that spectrotemporal control sounds derived from the monkey calls (“scrambled calls”) also activated the parietal and frontal regions. Taken together, our results demonstrate that species-specific vocalizations in rhesus monkeys activate preferentially the auditory ventral stream, and in particular areas of the antero-lateral belt and parabelt.

Details

Original languageEnglish
Article number113
Pages (from-to)1-10
Number of pages10
JournalFrontiers in Neuroscience
Volume9
Publication statusPublished - 1 Apr 2015
MoE publication typeA1 Journal article-refereed

    Research areas

  • auditory cortex, monkey, species-specific calls, spectrotemporal features, higher-level representations

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