Vocalization–whisking coordination and multisensory integration of social signals in rat auditory cortex

Social interactions involve multi-modal signaling. Here, we study interacting rats to investigate audio-haptic coordination and multisensory integration in the auditory cortex. We find that facial touch is associated with an increased rate of ultrasonic vocalizations, which are emitted at the whiski...

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Main Authors: Rajnish P Rao, Falk Mielke, Evgeny Bobrov, Michael Brecht
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2014-12-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/03185
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author Rajnish P Rao
Falk Mielke
Evgeny Bobrov
Michael Brecht
author_facet Rajnish P Rao
Falk Mielke
Evgeny Bobrov
Michael Brecht
author_sort Rajnish P Rao
collection DOAJ
description Social interactions involve multi-modal signaling. Here, we study interacting rats to investigate audio-haptic coordination and multisensory integration in the auditory cortex. We find that facial touch is associated with an increased rate of ultrasonic vocalizations, which are emitted at the whisking rate (∼8 Hz) and preferentially initiated in the retraction phase of whisking. In a small subset of auditory cortex regular-spiking neurons, we observed excitatory and heterogeneous responses to ultrasonic vocalizations. Most fast-spiking neurons showed a stronger response to calls. Interestingly, facial touch-induced inhibition in the primary auditory cortex and off-responses after termination of touch were twofold stronger than responses to vocalizations. Further, touch modulated the responsiveness of auditory cortex neurons to ultrasonic vocalizations. In summary, facial touch during social interactions involves precisely orchestrated calling-whisking patterns. While ultrasonic vocalizations elicited a rather weak population response from the regular spikers, the modulation of neuronal responses by facial touch was remarkably strong.
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spelling doaj.art-942aa2e35d8143b99f9cd4640d3a4cb42022-12-22T02:05:20ZengeLife Sciences Publications LtdeLife2050-084X2014-12-01310.7554/eLife.03185Vocalization–whisking coordination and multisensory integration of social signals in rat auditory cortexRajnish P Rao0Falk Mielke1Evgeny Bobrov2Michael Brecht3Bernstein Center for Computational Neuroscience, Humboldt University of Berlin, Berlin, GermanyBernstein Center for Computational Neuroscience, Humboldt University of Berlin, Berlin, GermanyBernstein Center for Computational Neuroscience, Humboldt University of Berlin, Berlin, Germany; Berlin School of Mind and Brain, Humboldt University of Berlin, Berlin, GermanyBernstein Center for Computational Neuroscience, Humboldt University of Berlin, Berlin, GermanySocial interactions involve multi-modal signaling. Here, we study interacting rats to investigate audio-haptic coordination and multisensory integration in the auditory cortex. We find that facial touch is associated with an increased rate of ultrasonic vocalizations, which are emitted at the whisking rate (∼8 Hz) and preferentially initiated in the retraction phase of whisking. In a small subset of auditory cortex regular-spiking neurons, we observed excitatory and heterogeneous responses to ultrasonic vocalizations. Most fast-spiking neurons showed a stronger response to calls. Interestingly, facial touch-induced inhibition in the primary auditory cortex and off-responses after termination of touch were twofold stronger than responses to vocalizations. Further, touch modulated the responsiveness of auditory cortex neurons to ultrasonic vocalizations. In summary, facial touch during social interactions involves precisely orchestrated calling-whisking patterns. While ultrasonic vocalizations elicited a rather weak population response from the regular spikers, the modulation of neuronal responses by facial touch was remarkably strong.https://elifesciences.org/articles/03185whiskingultrasonic vocalizationsocial interactionfacial touchauditory cortexmultisensory integration
spellingShingle Rajnish P Rao
Falk Mielke
Evgeny Bobrov
Michael Brecht
Vocalization–whisking coordination and multisensory integration of social signals in rat auditory cortex
eLife
whisking
ultrasonic vocalization
social interaction
facial touch
auditory cortex
multisensory integration
title Vocalization–whisking coordination and multisensory integration of social signals in rat auditory cortex
title_full Vocalization–whisking coordination and multisensory integration of social signals in rat auditory cortex
title_fullStr Vocalization–whisking coordination and multisensory integration of social signals in rat auditory cortex
title_full_unstemmed Vocalization–whisking coordination and multisensory integration of social signals in rat auditory cortex
title_short Vocalization–whisking coordination and multisensory integration of social signals in rat auditory cortex
title_sort vocalization whisking coordination and multisensory integration of social signals in rat auditory cortex
topic whisking
ultrasonic vocalization
social interaction
facial touch
auditory cortex
multisensory integration
url https://elifesciences.org/articles/03185
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AT falkmielke vocalizationwhiskingcoordinationandmultisensoryintegrationofsocialsignalsinratauditorycortex
AT evgenybobrov vocalizationwhiskingcoordinationandmultisensoryintegrationofsocialsignalsinratauditorycortex
AT michaelbrecht vocalizationwhiskingcoordinationandmultisensoryintegrationofsocialsignalsinratauditorycortex