Sexual Outcasts: The Perceived Impact of Body Weight and Gender on Sexuality1

A person's weight may be perceived as an important aspect of his or her sexuality and a significant determinant of his or her interpersonal sexual experiences. However, researchers interested in body weight and sexuality have focused exclusively on sexual disorders found in individuals with eating disorders; consequently, little is known about people's beliefs about weight and sexuality, despite the individual and interpersonal significance of such beliefs. Undergraduates received information about a male or female, obese or normal-weight stimulus person and then evaluated that person along several dimensions related to sexuality. Participants believed that an obese man's sexual experiences would be highly similar to those of a normal-weight man. However, participants viewed an obese woman as less sexually attractive, skilled, warm, and responsive, and perceived her as less likely to experience desire and various sexual behaviors than a normal-weight woman. In addition, participants believed that an obese woman was less sexually attractive, skilled, warm, and responsive than an obese man.     

Resurgence of derived stimulus relations.

Resurgence has been shown in human and nonhuman operant behavior, but not in derived relational responses. The present study examined this issue. Twenty-three undergraduates were trained to make conditional discriminations in a three-choice matching-to-sample paradigm. The training resulted in three equivalence classes, each consisting of four arbitrarily configured visual stimuli. The same 12 stimuli were then reorganized, and the conditional discrimination training was repeated such that three new classes were possible. In a subsequent test of derived relations, most subjects showed response patterns that were consistent with the altered conditional discriminations. Subjects were then exposed to conditional discrimination trials under extinction. Most subjects continued to respond consistently with the most recently reinforced conditional discrimination trials. During the next phase, subjects were exposed to symmetry and equivalence trials. Responses consistent with the most recent training produced feedback saying that the responses were incorrect, whereas other responses produced no feedback. Most subjects showed a resurgence of responding that was consistent with their earlier training. Finally, subjects were exposed to conditional discrimination trials carried out in extinction. Most subjects continued to show a resurgence of responding that was consistent with their early training.     

Effects of D-amphetamine on response acquisition with immediate and delayed reinforcement.

The present study examined in 8-hour sessions the effects of d-amphetamine (1.0, 5.6, and 10 mg/kg) on the acquisition of lever-press responding in rats that were exposed to procedures in which water delivery was delayed by 0, 8, or 16 seconds relative to the response that produced it. Both nonresetting- and resetting-delay conditions were studied. Although neither shaping nor autoshaping occurred, substantial levels of operative-lever responding developed under all conditions in which responses produced water. The lowest dose (1.0 mg/kg) of d-amphetamine either had no effect on or increased operative-lever pressing, whereas higher doses typically produced an initial reduction in lever pressing. Nonetheless, overall rates of operative-lever pressing at these doses were as high as, or higher than, those observed with vehicle. Thus, response acquisition was observed under all reinforcement procedures at all drug doses. In the absence of the drug, most responding occurred on the operative lever when reinforcement was immediate. Such differential responding also developed under both nonresetting- and resetting-delay procedures when the delay was 8 seconds, but not when it was 16 seconds. d-Amphetamine did not affect the development of differential responding under any procedure. Thus, consistent with d-amphetamine's effects under repeated acquisition procedures, the drug had no detrimental effect on learning until doses that produced general behavioral disruption were administered.     

Within-session changes in responding during concurrent schedules with different reinforcers in the components.

Rats and pigeons responded on several concurrent schedules that provided different reinforcers in the two components (food and water for rats, Experiment 1; wheat and mixed grain for pigeons, Experiment 2). The rate of responding and the time spent responding on each component usually changed within the session. The within-session changes in response rates and time spent responding usually followed different patterns for the two components of a concurrent schedule. For most subjects, the bias and sensitivity to reinforcement parameters of the generalized matching law, as well as the percentage of the variance accounted for, decreased within the session. Negative sensitivity parameters were sometimes found late in the session for the concurrent food-water schedules. These results imply that within-session changes in responding could cause problems for assessing the validity of quantitative theories of concurrent-schedule responding when the components provide different reinforcers. They question changes in a general motivational state, such as arousal, as a complete explanation for within-session changes in responding. The results are compatible with satiation for, or sensitization-habituation to, the reinforcers as explanations.     

Interpersonal determinants of attitude change following counterattitudinal behavior

In a test of predictions derived from an identity-analytic model of self-presentational behavior, individuals who privately endorsed positive or negative attitudes about sexual behavior were asked to deliver a prosexuality speech while alone, while watched by observers, or while being watched by observers who questioned the morality of the subject’s actions. Subsequent attitude measures indicated that the subjects who initially adopted negative attitudes justified their behavior by expressing more favorable attitudes about sexuality, but only when no audience witnessed their speech. When an audience was present, these individuals emphasized their lack of choice. In contrast, subjects who privately endorsed positive attitudes publicly expressed less favorable attitudes when their morality was challenged by the observers. These findings suggest that attitude change following counterattitudinal behavior (a) stems from private image-maintenance needs as well as public self-presentational concerns, and (b) is sometimes designed to secure an image of morality as well as an image of consistency.     

Factor analysis of MMPI-2 basic scales among college students

The MMPI-2 was administered to 288 college students (178 women and 110 men) between the ages of 18 and 34 years. Scores on the basic 13 (three validity and ten clinical) scales were correlated and subjected to principal component analyses separately for men and women. In each case, four factors were retained and subjected to varimax rotation. Coefficients of congruence were calculated for all possible pairs of factors across two samples of college students and the normative adults, separately for men and women, and across genders within each sample. Results indicated that the factorial structure of the MMPI-2 basic scales seemed to possess considerable uniformity across samples and genders, but not without some notable exceptions.     

Denial and self-denigration in the draw-a-person profiles of alcoholics

The present study attempts to cross-validate earlier findings that alcoholics tend to use more denial and are more demeaning of their characters than controls on the objective-projective Apperceptive Personality Test. One hundred nonalcoholic, nonpatient controls were matched to 100 outpatient alcoholics on age, race, and social class. All subjects were given the objective-projective Draw A Person Questionnaire, which was scored for 14 scales. As hypothesized and consistent with the earlier findings, alcoholics used more denial and were more often demeaning of their drawn characters than were controls. These and other exploratory findings are discussed.     

The development of risk-taking in children

Since clear relationships exist between age, gender, and the occurrence of different kinds of accident, safety researchers and educators need to take account of recent work in developmental and environmental psychology, which is leading to a revised view of children’s environmental competence. Studies of the development of risk perception and risk-taking are first reviewed: these have identified three broad phases through which children proceed, culminating in an understanding of the interaction between their own perspective, that of other participants, and characteristics of the situation itself in the causation of accidents. This broad picture is in line with the reformulations of Piagetian stage theory which have occurred in recent years: rather than being “pre-operational” or “egocentric” in a global sense, young children’s main limitations seem to be in applying the principles of routines or drills from one setting to another, and studies of attention and memory show that the amount of information children are able to process improves with age, as does their resistance to distraction. Three aspects of individual differences seem to have an influence upon risk-taking, namelygender, reflection-impulsivity, andfamily structure, and the findings are reviewed in each case. As children get older they experience an increasingly wide variety of unfamiliar situations, and it is essential to understand the interaction between these age changes in environmental circumstances and mechanisms of developmental change in formulating programmes for safety education.