Previous research has linked sensation seeking to autonomic nervous system functions and behavioral preferences. The present study investigated sensation seeking and heart rate variability under two classical music conditions: excitative or sedative based on structural components. Results partially supported previous research using physiological variables, high sensation seekers had lower log transformed respiratory sinus arrhythmia values than low sensation seekers during various time points, supporting existing evidence that high sensation seekers show different patterns of arousability through cardiac indices. |