[Trace processes in the neuronal activity of the rabbit cerebral cortex following rhythmic photic and electrocutaneous stimulation].

Trace unit activity in the visual and sensorimotor cortical areas was studied in alert rabbits after photic and electro-cutaneous stimulation. The ability of the sensorimotor area to preserve temporal stimulation pattern in the afteraction interval was higher than that of the visual area. Maximal rhythm preservation and a higher level of distant correlation in cortical unit activity were seen after synchronous bimodal stimulation. The data obtained suggest some diversity of the mechanisms of trace and evoked activity of cortical neurones.