Effects of the fasciculus retroflexus lesions on LHb PA neuron firing.

Abstract

<p>(a, b left panels) The bilateral lesions attenuated the rapid inhibitory effect of the single-pulse VTA and SNpc stimulation on the LHb PA neurons. Peristimulus time histograms were compiled from 100 consecutive sweeps and each single stimulus pulse was delivered at 100 ms (bin: 1 ms). (a, b right panels) Firing rates of these pain-activated neurons recorded in the VTA and SNpc stimuli groups were suppressed after the lesions (bin: 5 s).</p