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Psychosomatic Medicine 30:193-201 (1968)
© 1968 American Psychosomatic Society

Differences in the Autonomic and Somatic Conditioning of Infants

YVONNE BRACKBILL PH.D.1, LARRY M. LINTZ PH.D.1, and HIRAM E. FITZGERALD PH.D.1

1 Behavior Development Laboratory, Department of Psychology, University of Denver, Denver, Colo.

Temporal and auditory classical conditioning of an autonomic response (pupillary reflex) and a somatic response (eyeblink) were attempted in 4 separate experiments with clinically normal human infants. Time as a conditional stimulus (CS) was effective for conditioning pupillary dilation and constriction, but sound as CS was ineffective. Conversely, sound was effective for conditioning eyeblinking, but time was not. These discrepancies in conditionability were related to (1) the parameters comprising the classical conditioning paradigms employed, and (2) the implications of infant learning for developmental neurophysiology.

Submitted on June 20, 1967






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Copyright © 1968 by the American Psychosomatic Society