Abstract
This study investigated the cardiac waveform of 9-year-olds’ responses to high-and low-intensity nonsignal pure tones and to a simple reaction time (RT) task. Responses to the nonsignal tones were not affected by stimulus intensity and consisted of slight initial deceleration followed by pronounced acceleration. Responses to the RT task also consisted of an initial deceleration and larger acceleration plus a prominent deceleration, peaking at the onset of the imperative stimulus. These waveforms generally resembled those found in adults.
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References
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This study was supported by NIMH Predoctoral Fellowship 2-F01-MH36669 to the first author and NIMH Grant MH10993 to the second author. We acknowledge the able assistance of Bruce Cuthbert in transporting and testing Ss; Michael Falconer in computer programming; Frances K. Graham in providing a computer program for statistical analyses; and Kent Hayes in designing the apparatus. A grant from the University of Wisconsin Graduate School provided free computer time, and the Madison Academic Computer Center furnished computing facilities and consulting.
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Klorman, R., Lang, P.J. Cardiac responses to signal and nonsignal tasks in 9-year-olds. Psychon Sci 28, 299–300 (1972). https://doi.org/10.3758/BF03328747
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DOI: https://doi.org/10.3758/BF03328747