In this study, college athletes and nonathletes performed a muscular endurance task to determine pain tolerance, during which galvanic skin-response measures of arousal were obtained. The Bernreuter Personality Inventory was administered after this treatment. (JS)

Randomly assigned 41 students to 2 twice-weekly groups, which met for 3 hours eight times; 2 marathons, which met continuously for 24 hours; and nontreatment control group. Treatment groups had significant positive changes on 14 of 15 measured personality variables between pre- and post-test, and positive change on all dependent measures between…

Tested the prediction that individual differences in sensation seeking moderate the relationship between attitudinal similarity and attraction. Results showed high sensation seekers were more attracted than low sensation seekers to dissimilar others, whereas low sensation seekers were more attracted than high sensation seekers to people with…

College students with difficulty falling asleep were treated with either progressive relaxation, systematic desensitization, or a thought control procedure. All three treatment groups showed significant lower latency to sleep onset times than a waiting-list control group at the end of the three-week treatment period. A three-week followup revealed…

Individual differences in optimal level of stimulation as operationalized by the Sensation Seeking Scale significantly differentiated volunteers for hypnosis and encounter groups from non-volunteers. This confirmed predictions and extended the findings of previous work regarding encounter group volunteers. (NG)

Investigated was the hypothesis that high arousal increases processing of physical characteristics and reduces processing of semantic characteristics. While introverts and extroverts had equivalent scanning rates for physical features, introverts were significantly slower in searching for semantic features of category membership, indicating…