1. Reliable methods for establishing fetal mouse spinal cord (SC) and dorsal root ganglion (DRG) cel1.s in long term (> 1 mo) dissociated cell cultures are described. These cells have been studied by morphologic and intracellular electrophysiologic techniques. 2. Cells studied electrophysiologically can be relocated after preparation for electron microscopy and examined in thin sections. The el...

I. The caudal photoreceptor (CPR) interneurons in the sixth abdominal ganglion of the crayfish are complex, multi-modal interneurons. These cells respond directly to light with tonic spike discharges, and they integrate synaptic input from an array of filiform mechanoreceptors on the tailfan. They also provide input to rostra1 command centers, inducing backward walking at high firing frequencie...

When this stimulation of the hippocampal gyrus was carried out, the hippocampal formation and amygdaloid nucleus were still intact. But the rest of the anterior half of the temporal lobe had been removed. The fact that stimulation could still produce a flash-back of former experience would support the suggestion that comes from other evidence (Milner and Penfield, 1958) that the hippocampus of ...

Averaging of repeated responses to sensory stimuli is the standard approach in cognitive electrophysiology. This procedure can give rise to inappropriate interpretations in some situations, because two factors contribute to the average ERP responses: the amplitude of the responses during the individual experimental trials, and the concentration of the phases (phase-locking) across responses. La...

This article presents a review of reverse correlation in neurophysiology. We discuss the basis of reverse correlation in linear transducers and in spiking neurons. The application of reverse correlation to measure the receptive fields of visual neurons using white noise and m-sequences, and classical findings about spatial and color processing in the cortex resulting from such measurements, are...