title: Functional MRI of the vocalization-processing network in the macaque brain.
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.
authors.affiliation: Department of Neuroscience, Georgetown University Medical Center Washington, DC, USA ; Department of Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics Tübingen, Germany ; IMPRS for Cognitive and Systems Neuroscience Tübingen, Germany.
authors.forename: Michael
authors.initials: M
authors.lastname: Ortiz-Rios
authors.affiliation: Department of Neuroscience, Georgetown University Medical Center Washington, DC, USA.
authors.forename: Paweł
authors.initials: P
authors.lastname: Kuśmierek
authors.affiliation: Department of Neuroscience, Georgetown University Medical Center Washington, DC, USA.
authors.forename: Iain
authors.initials: I
authors.lastname: DeWitt
authors.affiliation: Department of Neuroscience, Georgetown University Medical Center Washington, DC, USA ; Brain and Mind Laboratory, Department of Neuroscience and Biomedical Engineering, Aalto University School of Science Aalto, Finland.
authors.forename: Denis
authors.initials: D
authors.lastname: Archakov
authors.affiliation: Department of Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics Tübingen, Germany ; IMPRS for Cognitive and Systems Neuroscience Tübingen, Germany.
authors.forename: Frederico A C
authors.initials: FA
authors.lastname: Azevedo
authors.affiliation: Brain and Mind Laboratory, Department of Neuroscience and Biomedical Engineering, Aalto University School of Science Aalto, Finland.
authors.forename: Mikko
authors.initials: M
authors.lastname: Sams
authors.affiliation: Brain and Mind Laboratory, Department of Neuroscience and Biomedical Engineering, Aalto University School of Science Aalto, Finland.
authors.forename: Iiro P
authors.initials: IP
authors.lastname: Jääskeläinen
authors.affiliation: Department of Physiology of Cognitive Processes, Max Planck Institute for Biological Cybernetics Tübingen, Germany ; Bernstein Centre for Computational Neuroscience Tübingen, Germany ; Department of Biomedical Sciences, University of Antwerp Wilrijk, Belgium.
authors.forename: Georgios A
authors.initials: GA
authors.lastname: Keliris
authors.affiliation: Department of Neuroscience, Georgetown University Medical Center Washington, DC, USA ; Brain and Mind Laboratory, Department of Neuroscience and Biomedical Engineering, Aalto University School of Science Aalto, Finland ; Institute for Advanced Study and Department of Neurology, Klinikum Rechts der Isar, Technische Universität München München, Germany.
authors.forename: Josef P
authors.initials: JP
authors.lastname: Rauschecker
keywords: auditory cortex; higher-level representations; monkey; species-specific calls; spectrotemporal features