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Science 28 September 1962:
Vol. 137. no. 3535, pp. 1060 - 1061
DOI: 10.1126/science.137.3535.1060
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Articles

Conditioning of Extrasystoles in Humans with Respiratory Maneuvers as Unconditional Stimulus

Jorge Perez-Cruet 1

1 Psychosomatic Laboratory, Walter Reed Army Institute of Research, Washington 12, D.C.

Extrasystoles are known to occur in some healthy individuals during common respiratory maneuvers such as holding the breath. Evidence is presented which shows that under controlled laboratory conditions this kind of extrasystole can be conditioned. Conditional stimuli signaling inspiration and expiration acquired the properties of the respiratory maneuvers by inducing extrasystoles during normal breathing.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)