[The central nervous substrate for waking and sleeping].
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Brain Stem↗
Biomedical subjects
B Kaada
Publications and source records attributed to B Kaada.
[Courses in postgraduate and continuing medical education].
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Curriculum↗
Brain mechanisms related to aggressive behavior.
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Affect↗
Electrocardiac responses associated with the fear paralysis reflex in infant rabbits and rats. Relation to sudden infant death.
It is a controversial issue whether non-hereditary prolonged cardiac repolarization (increased QT-interval in ECG) is a cause of sudden infant death syndrome (SIDS). The QT-interval has, however, been found to be normal at rest. The present experiments on infant rats and infant and adult rabbits demonstrate a transient QT-prolongation during the innate fear paralysis reflex elicited by a variety of frightening stimuli. This reflex has previously been proposed as a triggering mechanism for SIDS. It may represent an extrinsic cause of QT-prolongation which adds to an intrinsic defect in repolarization previously reported. The present findings lend further support to the fear paralysis theory of SIDS.
Animals↗