Sensation seeking and estimation of numerosity

In a sample of 81 subjects, significant negative correlations were obtained between scores on Zuckerman's Sensation Seeking Scale and estimates of numerosity. A cognitive view of sensation seeking was suggested, according to which high scores are a function of an underestimation of the amount of stimulation experienced and low scores a function of overestimation. This approach was discussed in relation to motivational theories and those involving strength of the nervous system.