Projection from the perirhinal cortex to the frontal motor cortex in the rat.
Stimulation of the anterior perirhinal cortex (PERa) induced marked surface-negative and depth-positive field potentials in the rat frontal motor cortex (MC) including the rostral and caudal forelimb areas. Injection of biotinylated dextran into the PERa densely labeled axon terminals in the superficial layers of the MC, where vigorous unit responses were evoked after PERa stimulation, indicated that the perirhinal-frontal projection preferentially activates the superficial layer neurons of the MC.
Kyuhou
Shin ichi
Si
Department of Physiology, Kansai Medical University, Moriguchi, Osaka 570-8506, Japan. kyuho@takii.kmu.ac.jp
Gemba
Hisae
H
D000818:Animals; D004558:Electric Stimulation; D005071:Evoked Potentials / Q000502:physiology*; D019706:Excitatory Postsynaptic Potentials / Q000502:physiology; D005260:Female; D005456:Fluorescent Dyes; D008297:Male; D009044:Motor Cortex / Q000166:cytology* / Q000502:physiology; D009434:Neural Pathways / Q000166:cytology* / Q000502:physiology; D020534:Parahippocampal Gyrus / Q000166:cytology* / Q000502:physiology; D017729:Presynaptic Terminals / Q000502:physiology / Q000648:ultrastructure*; D051381:Rats; D011916:Rats, Inbred F344; D011930:Reaction Time / Q000502:physiology; D009435:Synaptic Transmission / Q000502:physiology*
D005456:Fluorescent Dyes