| Characteristics of heart rate fluctuations and respiratory movements during orienting, passive avoidance and flight-fight behaviour in rabbits. | |
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MedLine Citation:
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PMID: 2269651 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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In the present study different heart rate patterns were demonstrated to accompany flight-fight behaviour, orienting behaviour and passive avoidance in rabbits. Flight-fight behaviour was characterized by markedly increased heart rate and diminished overall heart rate variability. The effect was mediated by vagal inhibition and beta-adrenergic activation in a type-specific relation. Orienting behaviour was accompanied by a smaller heart rate increase and the exaggeration of slow heart rate fluctuations. The latter effect was absent during beta-adrenergic blockade suggesting a behaviourally provoked beta-adrenergic activation. Single beta-adrenergic blockade did not change the characteristics of the heart rate fluctuations at rest. During passive avoidance a vagally mediated heart rate deceleration was followed by a slow heart rate return toward the initial heart rate level. This level was not reached during beta-adrenergic blockade. The enhanced overall heart rate variability during passive avoidance was mainly caused by strengthened respiratory-induced heart rate fluctuations and, furthermore, by exaggerated slow rhythmical heart rate fluctuations. The latter effect was not observed during beta-adrenergic blockade and is referred to as an orienting component within passive avoidance. Three individual behavioural types may be differentiated in rabbits 'Weisses Gross-Silber' by stable behavioural characteristics i.e. spontaneous motor activities, preferred postures at rest and coping behaviour. The results of the present study suggest that different neurovegetative reaction types, i.e. dominating beta-adrenergic or vagal activation are correlated with stable behavioural characteristics, especially in terms of preferring active or passive coping behaviour, respectively. |
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Authors:
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A Richter; N P Schumann; U Zwiener |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: International journal of psychophysiology : official journal of the International Organization of Psychophysiology Volume: 10 ISSN: 0167-8760 ISO Abbreviation: Int J Psychophysiol Publication Date: 1990 Nov |
Date Detail:
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Created Date: 1991-02-21 Completed Date: 1991-02-21 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8406214 Medline TA: Int J Psychophysiol Country: NETHERLANDS |
Other Details:
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Languages: eng Pagination: 75-83 Citation Subset: IM |
Affiliation:
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Institute of Pathological Physiology, Jena, G.D.R. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Anxiety / psychology Atropine / pharmacology Behavior, Animal / drug effects, physiology* Electrocardiography Electroshock Fear Female Heart Rate / drug effects, physiology* Models, Biological Motor Activity / physiology Orientation / physiology* Posture Propranolol / pharmacology Rabbits Respiration / physiology* Wakefulness / physiology |
| Chemical | |
Reg. No./Substance:
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51-55-8/Atropine; 525-66-6/Propranolol |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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