What question did this study set out to answer?

Identify medial preoptic/anterior hypothalamic area (POAH) thermosensitive neurons involved in the regulation of non-rapid eye movement (NREM) sleep.

November 1, 1995AJP Regulatory Integrative and Comparative Physiology

Neuronal discharge of preoptic/anterior hypothalamic thermosensitive neurons: relation to NREM sleep

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Authors

MAMd. Noor AlamUniversity of California, Los Angeles DMDennis McGintyUniversity of California, Los Angeles RSRonald SzymusiakVA West Los Angeles Medical Center

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Implication

Experimental study reveals reciprocal firing of hypothalamic thermosensitive neurons during NREM sleep in cats, indicating temperature-sensing circuits regulate sleep onset.

Key Points

Identify medial preoptic/anterior hypothalamic area (POAH) thermosensitive neurons involved in the regulation of non-rapid eye movement (NREM) sleep.
Evaluated spontaneous discharge and thermosensitivity across one to three sleep-waking cycles in five freely moving adult cats (N=5) using local POAH warming and cooling via a water-perfused thermode.
Out of 308 recorded neurons, 21% (n=65) were thermosensitive, classified into 10% (n=31) warm-sensitive and 11% (n=34) cold-sensitive neurons.
During NREM sleep relative to waking, 64% of warm-sensitive neurons (18/28) showed increased discharge rates (NREM/wake ≥ 1.2) and elevated thermosensitivity, whereas 74% of cold-sensitive neurons (25/34) showed decreased discharge rates (NREM/wake ≤ 0.8) and reduced thermosensitivity.

Cite This Study

Alam et al. (1995) studied this question.

synapsesocial.com/papers/6a0dbdc8cae7912d2fa5421d https://doi.org/10.1152/ajpregu.1995.269.5.r1240

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Implication

Experimental study reveals reciprocal firing of hypothalamic thermosensitive neurons during NREM sleep in cats, indicating temperature-sensing circuits regulate sleep onset.

Neuronal discharge of preoptic/anterior hypothalamic thermosensitive neurons: relation to NREM sleep

Discussion

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Implication

Key Points

Cite This Study

Neuronal discharge of preoptic/anterior hypothalamic thermosensitive neurons: relation to NREM sleep

Discussion

Member takes

Implication

Key Points

Cite This Study

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