[Functional analysis of evoked potentials in rat sensory cortex].
In the barrel cortex of behaving rat potentials evoked to vibrissa stimulation are composed from two main principal components which can be attributed to activation of two pyramidal cell populations: supra- and infragranular. The classical aversive stimulus favors the appearance of EPs dominated by a component characteristic of infragranular cells. We hypothesize that neuromodulatory action elicited by contextual stimulation activates all involved cortical neurons which results in opening the transmission gate to the surrounding columns.
Instytut Biologii Doświadczalnej im. M. Nenckiego PAN w Warszawie.
Andrzej
A
Wróbel
D000818:Animals; D005073:Evoked Potentials, Somatosensory / Q000502:physiology*; D018377:Neurotransmitter Agents / Q000378:metabolism; D017966:Pyramidal Cells / Q000502:physiology; D051381:Rats; D013003:Somatosensory Cortex / Q000502:physiology*
D018377:Neurotransmitter Agents