Whisker system

  • Article
    | Open Access

    Learning is a dynamic process involving many cortical areas. Here, using cortex-wide imaging, the authors show that in mice learning to discriminate between two textures a distinct task related signal flow is enhanced involving a specific association area whereas other association areas are suppressed.

    • Ariel Gilad
    •  & Fritjof Helmchen
  • Article
    | Open Access

    While there is no direct pathway from the superior colliculus to the cortex, the authors find that the superior colliculus modulates sensory-evoked responses in the somatosensory cortex. This modulation by the superior colliculus is mediated via a powerful di-synaptic pathway through the thalamus.

    • Saba Gharaei
    • , Suraj Honnuraiah
    •  & Greg J. Stuart
  • Article
    | Open Access

    Sensory tuning properties of neurons in the secondary whisker somatosensory cortex (wS2) are not well understood. Here, the authors report that wS2 neurons supralinearly integrate concurrent multi-whisker input with larger temporal windows than primary somatosensory cortex.

    • Matías A. Goldin
    • , Evan R. Harrell
    •  & Daniel E. Shulz
  • Article
    | Open Access

    During active touch, sensory responses to object touch are gated at the level of thalamus and cortex. Here, the authors report gating at the level of the brainstem and show that an intact somatosensory cortex is essential for this response modulation.

    • Shubhodeep Chakrabarti
    •  & Cornelius Schwarz
  • Article
    | Open Access

    Barrel cortex contains a functional map of whiskers but how neuronal activity maps multi-whisker inputs has not been studied. Here the authors show that while uncorrelated multi-whisker stimuli activate barrel neurons, correlated multi-whisker inputs activate neurons in a ring at the barrel-septa boundary

    • Luc Estebanez
    • , Julien Bertherat
    •  & Jean- François Léger