Modulation of artificial whisking related signals in barrel cortex

Modulation of artificial whisking related signals in barrel cortex.

Rats use rhythmic whisker movements, called active whisking, to sense the environment, which include whisker protractions followed by retractions at various frequencies. Using a proxy of active whisking in anesthetized rats, called artificial whisking, which is induced by electrically stimulating the facial motor nerve, we characterized the neural responses evoked in the barrel cortex by whiski...

Manuel A . Castro - Alamancos and Tatiana Bezdudnaya barrel cortex Modulation of artificial whisking related signals in

CALL FOR PAPERS Neurophysiology of Tactile Perception: a Tribute to Steven Hsiao Modulation of artificial whisking related signals in barrel cortex

Castro-Alamancos MA, Bezdudnaya T. Modulation of artificial whisking related signals in barrel cortex. J Neurophysiol 113: 1287–1301, 2015. First published December 10, 2014; doi:10.1152/jn.00809.2014.—Rats use rhythmic whisker movements, called active whisking, to sense the environment, which include whisker protractions followed by retractions at various frequencies. Using a proxy of active w...

Septal columns in rodent barrel cortex: functional circuits for modulating whisking behavior.

In rodents, each mystacial whisker is represented in the granular layer of primary somatosensory (SI) cortex by a compact cluster of cells known as a barrel, and barrels are separated from each other by domains that are called septa. Vertical columns of neurons aligned with each barrel act as a functional assembly to process information from a "principal" whisker, but a functional role has not ...

Temporal modulation of spatial borders in rat barrel cortex.

We examined the effects of varying vibrissa stimulation frequency on intrinsic signal and neuronal responses in rat barrel cortex. Optical imaging of intrinsic signals demonstrated that the region of cortex activated by deflection of a single vibrissa at 1 Hz is more diffuse and more widespread than the territory activated at 5 or 10 Hz. With the use of two different paradigms, constant time of...