Using the Theory of Alternative Behavior (Jaccard, 1981), we examined the relationship of warmth sensuousness, physical sensuousness, and sensation seeking to individuals' tanning salon behaviors, intentions, and attitudes among undergraduates at a Southeastern university. Females, high sensation seekers, those high in warmth sensuousness, and those with darker skin types were more likely to tan. Females were more likely to intend to tan in the next year. Those higher in warmth sensuousness were more likely to intend to tan more than 10 times in the next year. Females and subjects higher in warmth sensuousness had more positive attitudes toward tanning. Significant interactions were found between warmth sensuousness and sensation seeking in the predictions of intention of tanning within the next year, and intentions of tanning more than 10 times within the next year. For both interactions, as sensation seeking increased, the relationship between warmth sensuousness and intentions strengthened.

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<p><strong>Introduction: </strong>Barefoot running is growing in popularity as runners seek strategies to avoid running-related injuries (RRIs). A new theoretical perspective suggests that the improved cutaneous sensation during barefoot running results in a less injurious running style characterized by increased cadence, landing on the forefoot and more knee flexion. The mechanisms by which the barefoot running style may have an effect on RRIs are not well understood.</p> <p><strong>Purpose: </strong>Explore the new theoretical perspective on RRIs that supports the barefoot running style and investigate the effects of modified cutaneous sensation on the adaptation to and retention of the barefoot running style.</p> <p><strong>Methods: </strong>First, a scoping review was performed to identify implicit theory underlying both traditional shod and barefoot running research and practice. Second, a feasibility study investigated altered cutaneous sensation as a proposed mechanism by which a person learns and retains the skill of barefoot running. Sixteen participants ran shod on a treadmill then were randomized to receive one of four cutaneous sensation treatments. They then ran barefoot for the first time and 48 hours later. Changes in the cadences, foot angles and knee angles means and variations across runs and treatment groups were used to quantify learning and retention.</p> <p><strong>Results:</strong> The scoping review provided evidence that improved plantar cutaneous sensation, such as when one runs barefoot, could reduce the risk of RRIs. In the feasibility study, our findings suggest that barefoot compared to shod running increased plantar cutaneous sensory thresholds, and increased mean cadence and mean foot angle. Improved retention of the barefoot running style was shown in the treatment group with anaesthetic cream on their legs.</p> <p><strong>Conclusions: </strong>Plantar cutaneous sensation is proposed as an important factor when exploring the etiology of RRIs. This knowledge may influence an individual’s risk of experiencing a running-related injury.</p> / Master of Science Rehabilitation Science (MSc)

The original document does not provide an abstract. McMaster Digitization Centre, 14 March 2019. / Thesis / Master of Arts (MA)

The current study aimed to test sensation seeking as a mediator in the relationship between arousal and aggression. In addition, an experimental design was used to test whether arousal can be manipulated to alter levels of sensation seeking and aggression, both measured behaviorally. A sample of 128 undergraduate students completed state and trait measures of sensation seeking and aggression, and baseline measures of physiology. It was hypothesized that trait sensation seeking would mediate the relationship between baseline physiology and trait aggression. Also, state sensation seeking would mediate the relationship between an arousal manipulation and state aggression. The results failed to support the proposed mediation models. Furthermore, the arousal manipulation was insufficient to result in sustained heart rate differences, and therefore the malleability of state sensation seeking and aggression could not truly be tested. Exploratory analyses supported an interaction between arousal and sensation seeking, such that in individuals low on experience seeking, disinhibition and boredom susceptibility, low heart rate was associated with greater aggression. These findings suggest that arousal and sensation seeking may conjointly predict aggression through moderation rather than mediation, though future studies with improved experimental designs are needed. / Ph. D.