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Auditory input enhances somatosensory encoding and tactile goal-directed behavior

Author

Listed:
  • L. Godenzini

    (University of Melbourne)

  • D. Alwis

    (University of Melbourne)

  • R. Guzulaitis

    (University of Melbourne)

  • S. Honnuraiah

    (Australian National University)

  • G. J. Stuart

    (Australian National University)

  • L. M. Palmer

    (University of Melbourne)

Abstract

The capacity of the brain to encode multiple types of sensory input is key to survival. Yet, how neurons integrate information from multiple sensory pathways and to what extent this influences behavior is largely unknown. Using two-photon Ca2+ imaging, optogenetics and electrophysiology in vivo and in vitro, we report the influence of auditory input on sensory encoding in the somatosensory cortex and show its impact on goal-directed behavior. Monosynaptic input from the auditory cortex enhanced dendritic and somatic encoding of tactile stimulation in layer 2/3 (L2/3), but not layer 5 (L5), pyramidal neurons in forepaw somatosensory cortex (S1). During a tactile-based goal-directed task, auditory input increased dendritic activity and reduced reaction time, which was abolished by photoinhibition of auditory cortex projections to forepaw S1. Taken together, these results indicate that dendrites of L2/3 pyramidal neurons encode multisensory information, leading to enhanced neuronal output and reduced response latency during goal-directed behavior.

Suggested Citation

  • L. Godenzini & D. Alwis & R. Guzulaitis & S. Honnuraiah & G. J. Stuart & L. M. Palmer, 2021. "Auditory input enhances somatosensory encoding and tactile goal-directed behavior," Nature Communications, Nature, vol. 12(1), pages 1-14, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-24754-w
    DOI: 10.1038/s41467-021-24754-w
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    1. Lim, Weng Marc & Ahmed, Pervaiz Khalid & Ali, Md Yunus, 2022. "Giving electronic word of mouth (eWOM) as a prepurchase behavior: The case of online group buying," Journal of Business Research, Elsevier, vol. 146(C), pages 582-604.

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