Intracortical connectivity revealed by spike-triggered averaging in slice preparations of cat visual cortex.
Intracortical connectivity was studied in slice preparations of cat's visual cortex by spike-triggered averaging. The experiments documented the unitary postsynaptic potentials underlying the inhibitory and excitatory connections from layer III-IV border cells to supragranular cells, as demonstrated previously by cross-correlation studies. In addition the analysis demonstrated the existence of two excitatory connections, between supragranular and layer V cells, that were not detectable in previous cross-correlation studies.
Komatsu
Y
Y
Department of Physiology, Kyoto Prefectural School of Medicine, Japan.
Nakajima
S
S
Toyama
K
K
Fetz
E E
EE
D000818:Animals; D002415:Cats; D004558:Electric Stimulation; D005071:Evoked Potentials; D066298:In Vitro Techniques; D008839:Microelectrodes; D009474:Neurons / Q000502:physiology; D013569:Synapses / Q000502:physiology*; D014793:Visual Cortex / Q000502:physiology*