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Neurophysiology of Converging Synaptic Inputs from the Rat Prefrontal Cortex, Amygdala, Midline Thalamus, and Hippocampal Formation Onto Single Neurons of the Caudate/putamen and Nucleus Accumbens by David M. Finch is a Neuroscience article available to read on EtoBox.

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Neurophysiological responses mediated by projections from five telencephalic and diencephalic regions (the infra-and prelimbic portions of the prefrontal cortex, amygdala, midline and intralaminar thalamic nuclei, entorhinal cortex and subiculum/CAl) to the caudate/putamen (CPu) and nucleus accumbens (Acb) of the dorsal and ventral striatum were studied in chloral-hydrate-anesthetized rats. Both extra-and intracellular in vivo recording techniques were used. A retrograde tracer (wheatgerm agglutinin-apo-horseradish peroxidase-5 nm colloidal Gold) was deposited in some animals in the vicinity of recording sites to confirm that stimulating electrodes were located near cells that projected to the striatum. Electrical stimulation of these five regions, respectively, evoked excitatory responses in 60%, 22%, 51 %, 25%, and 17% of striatal neurons. Some responses, particularly with thalamic stimulation, showed short-term frequency potentiation in which 5/s stimulation increased the probability of spike firing. About half of responsive cells showed convergent excitation to more than one stimulating site. It was possible with convergent excitatory responses to show synaptic interactions: si

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Author

David M. Finch

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 1050-9631)

Published

1995

Language

EN

Field

Neuroscience (Life Sciences)