The awareness of thirst: Proposed neural correlates

Consciousness and Cognition 9 (4):463-487 (2000)
The neural and endocrine bases of the generation of thirst are reviewed. Based on this review, a hierarchical system of neural structures that regulate water conservation and acquisition is proposed. The system includes primary sensory-receptive areas; secondary sensory structures (circumventricular organs), which detect levels of hormones, including angiotensin II and vasopressin, which are involved in generating thirst; preoptic and hypothalamic structures; and an area within the ventrolateral quadrant of the periaqueductal gray matter. Hodological and other data are used to determine the hierarchical organization of the system. Based on studies of the effects of lesions to various structures within the hierarchy of the system, it is proposed that the awareness of thirst in rodents is either entirely or predominantly due to neuronal activities in a subsection of the ventrolateral periaqueductal gray matter. It is also hypothesized that the awareness of thirst in primates is due to neuronal activities in both the ventrolateral periaqueductal gray and in a region within the medial prefrontal and anterior cingulate cortex
Keywords *Awareness  *Neuropsychology  *Thirst  Neurophysiology
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DOI 10.1006/ccog.2000.0462
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References found in this work BETA
David J. Chalmers (1998). The Problems of Consciousness. In H. Jasper, L. Descarries, V. Castellucci & S. Rossignol (eds.), Consciousness: At the Frontiers of Neuroscience. Lippincott-Raven 29-59.
Petra Stoerig (1998). Varieties of Vision: From Blind Responses to Conscious Recognition. In Stuart R. Hameroff, Alfred W. Kaszniak & A. C. Scott (eds.), Toward a Science of Consciousness II. MIT Press 2--297.

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