Environmental Attention,Affect, and Altruism1

Three experiments were conducted concerning the effect of attention to positive or negative images of the physical environment on altruistic behavior: I. Some subjects listed and described aspects of their residential environments that were particularly pleasant while others described particularly unpleasant aspects. II. Subjects were exposed to slides of either attractive or unattractive outdoor environments. III. Subjects viewed slides of either attractive or unattractive environments while adopting an attentional set that focused only on positive or negative aspects of the slides. After these manipulations, subjects in each experiment encountered an ostensibly unrelated confederate who sought their assistance as a favor. Experiment I subjects who had thought about pleasant environments spent significantly more time helping than those who thought about unpleasant enviornments. Experiment II subjects who saw slides of attractive environments offered significantly more aid for a longer time period than subjects who saw slides of unattractive environments. Experiment III subjects who focused on positive aspects of attractive enviornments gave more help than subjects who focused on negative aspects of attractive environments, though overall differences were not significant. Attentional set produced no differential helping effects in subjects who had viewed unattractive environments. In all three experiments mood or affect was discussed as mediating the impact of environments on behavior.     

THE USE OF IMPOSED AND SELF-SELECTED TRAINING PACKAGES TO ESTABLISH CLASSROOM TEACHING SKILLS1

Although much is known about techniques for teaching elementary pupils in the classroom, no procedures have been consistently effective in training teachers to use these techniques. In the present study, six teacher trainees were observed individually and trained sequentially to use a variety of teaching skills: praise for academic responses, praise for appropriate classroom behavior, correction procedures for incorrect academic responses, and token fines. These skills were examined under four conditions: (1) baseline sessions were taught by the trainees before any instructions on the use of the teaching skills. (2) Instruction sessions were taught by the trainees after they were given instructions describing the use of several teaching skills. (3) During each Imposed-Package session, the trainees received modelling, verbal feedback, graphic feedback, and grade and quiz contingencies on their use of a particular teaching skill. (4) During each Self-Selected Package session, a grade contingency was in effect with the trainees choosing the components (modelling, verbal feedback, graphic feedback, quiz contingency) they wanted included in their training package for a particular skill. The effects of instructions were quite varied. Large increases on three of the four skills occurred with one trainee; almost no changes occurred with another trainee; and changes with the remaining four trainees fell within these extremes. The Imposed and Self-Selected Packages reliably increased the use of teaching skills, including those skills for which instructions had not been effective. The Self-Selected Package was considered to be as effective as the Imposed Package, since the time required for training a teaching skill varied from two to nine sessions with both packages. Under the Self-Selected Package, the trainees chose from modelling, verbal feedback, and graphic feedback, but none chose the quiz contingency. Questionnaire data collected after training showed that all six trainees preferred the Self-Selected Package to the Imposed Package. The effectiveness of the Self-Selected Package, together with the trainees' preference for it, suggests that it may be desirable for teacher training programs to specify the teaching skills, arrange a contingency for performance, and allow trainees to choose which additional components are to be used in each training session.     

Extent-of-motion thresholds under subject-relative and object-relative conditions

The experiment was designed to discover the threshold extent of motion at medium speeds amounting to 41, 82, and 164 min./sec., and to compare the perception of motion arising from subject-relative displacement with the perception of motion arising from object-relative displacement. Extent thresholds were found while velocity was kept constant. Different groups of ten Ss were used for each displacement velocity, and for each S the extent threshold was twice obtained by the method of constant stimuli, once under subjectrelative and once under object-relative displacement conditions. Sensitivity to brief displacements of a continuously visible target was high; average thresholds ranged from 1.0 to 4.4 min. under the various conditions employed. The thresholds were higher for subject-relative conditions and the slower displacement velocities and lower for objectrelative conditions and faster displacements.     

Effect of display movement on tactile pattern perception

The effect of display movement on the ability of subjects to recognize alphabetic shapes tactually was investigated. The display consisted of a computer-controlled 8-by-6 array of small airjet stimulators that could be physically translated in a small circle by means of a mechanical linkage. The experimental parameters were the stimulus duration, the angular velocity of the display, and the amplitude of the rotation. Recognition accuracy increased with stimulus duration between 100 and 400 msec. For a rotation amplitude of 0.8 cm, a maximum in recognition accuracy occurred at a rotation velocity of 400 rpm, or 150 msec. per revolution. The optimum angular velocity appeared to decrease as the amplitude of rotation increased. From these results and certain related neurophysiological evidence, a hypothetical model is suggested which qualitatively can account for the data.     

Procreative liberty, biological connections, and motherhood.

Given the complex and dramatic array of issues currently facing us in reproductive ethics, bioethicists working on the topic might be forgiven feelings of trepidation when they cast their minds toward the next century. Currently, technologies such as artificial insemination by donor (AID), once the source of intense controversy, are used on a routine basis; mainstream newspapers carry advertisements offering "excellent compensation" to ova "donors;" courts are arguing whether women who serve as gestational or "surrogate" mothers have any parental rights; and proposals resurface to jail pregnant women who take street drugs. Sorting out which developments are to be welcomed and which are to be resisted -- and why -- will require us not only to clarify some of our most basic value commitments, but also to reflect on our understanding of concepts, such as motherhood, that we previously had the luxury of thinking obvious. Let me highlight two issues I think we will be forced to confront as we try to navigate the ethics of reproduction into the twenty-first century -- namely, the value of biological connection and the meaning of motherhood.     

Retrograde Enhancement of Human Kinesthetic Memory by Alcohol: Consolidation or Protection against Interference?

Alcohol intake is known to impair memory in animals and humans. However, five studies reported that “medium” (0.05 ml/kg body weight) to “high” (1.0 ml/kg body weight) doses of alcohol improved memory when drunk immediately after initial learning of verbal or visual material. It was proposed that alcohol brought about this retroactive facilitation either through enhanced consolidation of memory traces or by protecting against retroactive interference. The present double blind study compared the performances of an alcohol and a placebo group on a kinesthetic memory task before alcohol or placebo intake and at retest 1 h after consumption. A second experiment was identical to the first except that all subjects carried out two trials on a T maze in the hour between testing and retesting. The alcohol group in the first experiment performed significantly better than the placebo group at retest (p< .05) but this was not the case in the second experiment. Alcohol therefore enhanced performance on the kinesthetic memory task in the first experiment but may not have protected against the moderate interference from the T maze in the second. The low levels of alcohol could have had a stimulant effect on trace consolidation, perhaps via raised blood glucose levels.     

Dimensions of perfectionism and constructive thinking as a coping response

The present study examined perfectionism and general coping ability as assessed by a new measure of constructive thinking. A sample of 77 students completed the Multidimensional Perfectionism Scale (MPS) and the Constructive Thinking Inventory (CTI). The MPS provides measures of selforiented, other-oriented, and socially prescribed perfectionism, while the CTI provides various measures, including summary scores of global constructive thinking, emotional coping, behavioral coping, categorical thinking, personal superstitious thinking, naive optimism, and esoteric thinking. Subjects also completed a measure of depressive symptoms so that we could examine perfectionism and coping independent of current levels of adjustment. The main finding was that socially prescribed perfectionism was associated with less constructive thinking and more negative coping across most of the CTI subscales, and these associations remained significant after removing variance due to levels of depression symptoms. Self-oriented perfectionism was adaptive in that it was associated with active forms of behavioral coping, but it was maladaptive in that it was associated with a form of emotional coping involving reduced self-acceptance. The results are discussed in terms of their implications for the cognitive treatment of perfectionists. Queen's University This research was supported by grant #410-91-0856 from the Social Sciences and Humanities Research Council of Canada awarded to the authors     

Perfectionism,life events,and depressive symptoms: A test of a diathesis-stress model

The present research tested the hypothesis that perfectionists who experience stress are vulnerable to depression, in part because negative life events represent a failure to maintain control over negative outcomes. In Study 1, 215 subjects completed the Multidimensional Perfectionism Scale (MPS) and control measures. The MPS assesses self-oriented, other-oriented, and socially prescribed perfectionism. It was confirmed that self-oriented and other-oriented perfectionism were associated with both higher desire for control and greater perceived personal control. Study 2 examined whether trait levels of perfectionism moderate the link between life stress and symptoms of depression. In addition, prospective analyses investigated whether perfectionism accounts for changes in levels of depressive symptomatology over time. Two samples comprised of 374 students (Sample 1) and 173 students (Sample 2) completed the MPS and measures of major life stress and depression symptoms. Subjects in Sample 2 completed these measures at two timepoints separated by a three-month interval. Regression analyses indicated that self-oriented perfectionism and life stress interact significantly to produce higher levels of depressive symptomatology. Moreover, in Sample 2, self-oriented perfectionism at Time 1 was associated with increases in depression symptoms three months later for those individuals who had experienced a major life event. The results provide support for diathesis-stress models, which maintain that perfectionists exposed to life stress are vulnerable to symptoms of depression. The results are discussed in terms of their implications for the study of personality, stress, and vulnerability to symptoms of depression. This research was supported by grants #410-89-0335, #410-91-8056, and #410-93-1256 from the Social Sciences and Humanities Research Council of Canada awarded to the authors.     

Perfectionism and Sexual Satisfaction in Intimate Relationships

This study sought to provide information on the relations between trait perfectionism and perfectionistic self-presentation and sexual satisfaction in married couples. A sample of 74 married or cohabiting couples were recruited from the community to participate in the study. They completed measures of perfectionism, perfectionistic self-presentation, sexual satisfaction, dyadic adjustment, and depression. The results showed that the interpersonal dimensions of trait perfectionism were negatively related to general sexual satisfaction and sexual satisfaction with the partner for both husbands and wives. After partialing out marital satisfaction and depression, the husband's sexual satisfaction was significantly negatively correlated with his own socially prescribed perfectionism and with his wife's ratings of other-oriented perfectionism. The wife's satisfaction was significantly negatively correlated both with her husband's socially prescribed perfectionism and with her own socially prescribed perfectionism, other-oriented perfectionism, and perfectionistic self-presentation. Regression analyses suggest that the wife's other-oriented perfectionism is a unique predictor of her general lower sexual satisfaction and her husband's lower satisfaction with her contribution to the sexual relationship. Overall, the findings suggest that perfectionistic expectations have an important role to play in sexual satisfaction in married couples.