Neurophysiology of Ingestion by D. A. Booth (Eds.)

By D. A. Booth (Eds.)

This choice of reports attracts jointly present figuring out on neurophysiological techniques to ingestive behaviour in mammals. The booklet introduces to non-specialists the neural procedures that mediate consuming and consuming behaviour, targeting the 2 components of analysis that jointly are the main to realizing how the mind organizes ingestion and certainly the other type of behaviour. at the one hand, the practical strategies in the mind can in simple terms be elucidated with assistance from info supplied by way of recording task of unmarried nerve cells. nonetheless, the behaviour geared up via interactions between neurones when it comes to the surroundings can in basic terms be understood by means of experimental research of the cognitive approaches which rework built-in sensory info into larger motor keep an eye on. hence, this publication considers the association of ingestive acts and resultant nutritional choice and intakes throughout the senses of contact, style, scent, and sight and by way of the mechanical and chemical stimulation of the digestive tract and metabolic indications from the liver. the outlet and shutting chapters define constructing conceptions of the operation of the behavioural and neural structures as an entire in coordinating the influence of the inner and exterior environments on those varied sensory modalities into the usually subtle functionality of eating acceptable quantities of suitable for eating and potable fabrics

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Impressive progress has been made in this area by the use of electrophysiological techniques to record from single primary vagal afferent fibres. By such a method, it is possible to charac­ terize different hepatic receptors; amongst those investigated in this way have been glucoreceptors, osmoreceptors and pressure/volume receptors. Single unit recordings, made through microelectrodes stereotactically 33 34 Neurophysiology of Ingestion positioned in the brainstem, have also been utilized to learn about the fate of sensory information from the liver once it enters the central nervous system (CNS).

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S. and Wright, F. S. (1970). Lack of evidence for an hepatic osmoreceptor in conscious dogs. American Journal of Phys­ iology, 218, 42-45. Shimazu, T. (1967). Glycogen synthetase activity in liver: regulation by the autonomic nerves. Science, 156, 1256-1257. , Grijalva, C. and Coopers, P. (1983). Functional corre­ lations between lateral hypothalamic glucose sensitive neurons and hepatic portal glucose sensitive units in the rat. Brain Research, 265, 49-54. 32 Neurophysiology of Ingestion Smith, G.

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