Psychophysiologic and behavioral effects of tactile stimulation on infants with congenital heart disease.

A within-subjects, counterbalanced, repeated measures design was employed to determine the effects of gender and six different types of verbal and tactile stimuli on the arousal of 24 infants hospitalized for congenital heart disease during their first 6 months of life. Infants were systematically assigned to different sequences of the various stimuli. Measures of arousal included heart rate, blood pressure, respiration, and activity level. Results indicated that the use of touch conducive to neural excitation (i.e., intense, vigorous, extensive touching of highly innervated body areas) produced higher heart rates (p less than .01) and systolic blood pressure (p less than .002) as well as greater activity (p less than .01) than did other types of tactile stimulation or soothing verbal stimulation. Girls appeared more physiologically responsive to touch than boys and a subset of infants showed evidence of distress during more arousing stimulation.