Abstract: This paper examined the Sensation Seeking trait, Cognitive Complex-ity, the Rod and Frame Test and the Heart Rate for superior teen-agers,juvenile delinquents and general teen-agers. The major objective is toverify F.Farley's theory and to go further into the cognitive and physiolog-ical characteristics. Farley's theory is that high sensation seekers possesstwo behavior completely opposed as a result of their different stimulationseeking ways. The results of the experiment were that juvenile delinquents and superiorteen-agers possess high sensation seeking trend compared to the generalteen-agers; the stimulative ways that the superior teen-agers and the juv-enile delinquents seeking were different; the superior teen-agers scoredhigher in cognitive complexity, tending to Field-Independence andstronger orienting reflex to novel stimulation, whereas the juvernile del-inquents displayed cognitive simplicity and Field-Dependent charaeter-istics.

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