Responses of anterior hypothalamic-preoptic neurons to direct thermal stimulation during wakefulness and sleep

Parmeggiani, Pier Luigi; Azzaroni, A; Cevolani, Daniela; Ferrari, G.

doi:10.1016/0006-8993(83)90152-x

Cited by 34 publications

(16 citation statements)

References 5 publications

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“…8, Chapter 5) (Parmeggiani et al, 1977). This result is in agreement with the reduced responsiveness of preoptic-hypothalamic thermosensitive neurons (Alam et al, 1995a,b;Glotzbach and Heller, 1984;Parmeggiani et al, 1983Parmeggiani et al, , 1986Parmeggiani et al, , 1987. Moreover, a depression of the amygdala control over cardiovascular activity has been observed in cats during REM sleep (Frysinger et al, 1984).…”

Section: Central Command Of Circulation In Sleepsupporting

confidence: 75%

Systemic Homeostasis and Poikilostasis in Sleep

Parmeggiani

2010

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Section: Central Command Of Circulation In Sleepsupporting

confidence: 75%

Systemic Homeostasis and Poikilostasis in Sleep

Parmeggiani

2010

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“…Respiratory rate and effort are profoundly influenced by core or anterior hypothalamic temperature, an effect that is greatly reduced in REM sleep in both the cat and developing kitten (203,204). Appropriate rapid breathing responses to hypothalamic warming require a period of time to develop in the kitten; very young animals cannot maintain adequate ventilation with such warming and switch intermittently to slower breathing, risking hyperthermic damage (204).…”

Section: Rostral Brain Influencesmentioning

confidence: 99%

“…It is the view of the majority of investigators in this area [at least in those cases in which parental abuse has been ruled out (202)] that dysfunctional development of the respiratory controllers, medical conditions, and environmental factors contribute to SIDS independently or in combination (203). It is the view of the majority of investigators in this area [at least in those cases in which parental abuse has been ruled out (202)] that dysfunctional development of the respiratory controllers, medical conditions, and environmental factors contribute to SIDS independently or in combination (203).…”

Section: Sidsmentioning

confidence: 99%

Sleep and Breathing in Children

Marcus¹,

Carroll²,

Donnelly³

et al. 2008

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“…As in animals, this inactivation may depend on readjustments intervening at the thermostat (hypothalamic) level, which would lose its thermosensitivity for a short period of time around PS entrance (Parmeggiani et al 1973(Parmeggiani et al , 1983(Parmeggiani et al , 1987Heller 1976, 1984). For instance, if the gain of the thermoregulatory loop decreases in the transition from SWS to PS and then remains constant during PS, it may be that the central command for sweating does not reach the sweating threshold at the beginning of PS, but it does afterwards, due to internal temperature increase.…”

Section: Short-term Abolition Of Sweating Output At the Beginning Of mentioning

confidence: 99%

A short‐term poikilothermic period occurs just after paradoxical sleep onset in humans: characterization changes in sweating effector activity

Dewasmes

Bothorel

Candas

et al. 1997

Journal of Sleep Research

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SUMMARYWe examined the changes in sudorific effector activity in five healthy young (21 -23 y) subjects just before, during and just after successive paradoxical sleep (PS) phases. Local sweat rates were evaluated minute by minute over the chest (mcs). Previous observations, showing that mLs levels dropped before paradoxical sleep onset was electrophysiologically scored, were confirmed. At the end of this period of m,, depression, which in the present study coincided with paradoxical sleep onset, we show for the first time a short period (3-7min) (period I) during which sweat production completely disappeared. A second period then followed (period II), at the very beginning of which mcs was re-elicited and thereafter increased in close correlation with paradoxical sleep duration. During period 11, the remaining inhibiting influences (maximal during period I) and their releases could be specified by the successive valleys (indicating mch inhibition) and peaks (indicating release of the mc5 inhibition) drawn by the minute by minute mc, changes. These inhibitions became weaker as paradoxical sleep advanced. Given the strategic position of period I (at paradoxical sleep onset) and the total m,, abolition therein observed, it may be assumed that this poikilothermic state is the re-emergence of the 'ancestral' mode of body temperature regulation. From a thermophysiological point of view, period I1 may be considered as more 'modern' and directly related to the extension of paradoxical sleep in humans. This extension could be underlain by the unique development of our cognitive and/ or learning functions.

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Responses of anterior hypothalamic-preoptic neurons to direct thermal stimulation during wakefulness and sleep

Cited by 34 publications

References 5 publications

Systemic Homeostasis and Poikilostasis in Sleep

Systemic Homeostasis and Poikilostasis in Sleep

Sleep and Breathing in Children

A short‐term poikilothermic period occurs just after paradoxical sleep onset in humans: characterization changes in sweating effector activity

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