Olfactory Input to the Hypothalamus: Electrophysiological Evidence

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Science  22 Dec 1967:
Vol. 158, Issue 3808, pp. 1592-1594
DOI: 10.1126/science.158.3808.1592


Electrical stimulation of the rat's olfactory bulb or lateral olfactory tract elicited unit discharges in the region of the medial forebrain bundle of the lateral hypothalamus, with latencies of 4 to 25 milliseconds. Unit responses in this area were driven by odors in preparations that were paralyzed to prevent breathing artifacts.