Accession Number : AD0779428

Title :   Neuronal Activities on the Regulation of Feeding (Study of the Membrane Characteristics of Chemoreceptive Neurons in the Hypothalamus).

Descriptive Note : Final rept. 3 Oct 72-2 Oct 73,


Personal Author(s) : Oomura,Yutaka

Report Date : 10 JAN 1974

Pagination or Media Count : 43

Abstract : The generation of appetite or hunger motivation seems to be governed by the lateral area (LH), and feelings of satiety appear to be produced by the ventromedial nucleus (VMH). In both centers, there are chemosensitive neurons whose levels of activity change in response to blood components and thereby, perhaps, initiate the series of events that leads to the final complex experiences of hunger and satiety. But whatever the subsequent events, this neuronal ability to chemically analyze blood will probably prove to be the first and most important stage of the process. As a second step, it appears most likely that the neuron which encodes such chemical information also activates a small neural network over which it exercises primary influence. Activation of this neuronal network, or rather of many similar networks, triggered by chemosensitive neurons, has as an end result the production of relatively specific and appropriate behavior. (Modified author abstract)

Descriptors :   *Chemoreceptors, *Hypothalamus, *Appetite, *Central nervous system, Brain, Physiology, Electrophysiology, Feeding, Nerve cells, Neural nets, Blood chemistry, Rats, Experimental data, Japan

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE