Behavioral state dependency of neural activity and sensory (whisker) responses in superior colliculus.

  title={Behavioral state dependency of neural activity and sensory (whisker) responses in superior colliculus.},
  author={Jeremy D Cohen and Manuel A. Castro-Alamancos},
  journal={Journal of neurophysiology},
  volume={104 3},
Rats use their vibrissa (whiskers) to explore and navigate the environment. These sensory signals are distributed within the brain stem by the trigeminal complex and are also relayed to the superior colliculus in the midbrain and to the thalamus (and subsequently barrel cortex) in the forebrain. In the intermediate layers of the superior colliculus, whisker-evoked responses are driven by direct inputs from the trigeminal complex (trigeminotectal) and feedback from the barrel cortex… 

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