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Previous Volume 345:550-551 August 16, 2001 Number 7 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

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By Jay Schulkin. 206 pp., illustrated. New York, Cambridge University Press, 2001. $80 (cloth); $28.95 (paper). ISBN 0-521-79170-7 (cloth); 0-521-79551-6 (paper).

Physiology has been characterized as a science that infers the operation of a system by poking it and observing its response. The author of Calcium Hunger, a physiologist in this classic mode, is concerned with the role of behavior in maintaining the internal integrity of organisms. This emphasis on behavior is in contrast to the narrow, traditional view that concentrates on the internal milieu and on the control systems and feedback loops that sustain it. Schulkin builds on the psychobiologic work of Curt Richter, who held that behavioral tendencies had evolved to serve homeostatic regulation and specifically, that organisms needing . . . [Full Text of this Article]

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