Generalization and discrimination of shape orientation in the pigeon

Pigeons learned to peck a green key on which parallelogram-shapes were projected; they then received generalization tests in which the orientation of the parallelogram was varied. Nondifferential training produced very little eventual stimulus control along the orientation dimension, but when training included S- trials (absence of the parallelogram) subjects responded consistently more to certain orientations than to others. Unlike typical results for visual generalization (e.g., line-tilt), the tilt gradients obtained for this complex stimulus were bimodal, supporting predictions on the basis of human perceptual data. However, unimodal gradients could be produced by specific discrimination training along the orientation dimension. Other forms of intradimensional training also produced relatively steep gradients, often characterized by unexpected but consistent secondary peaks. An attempt to obtain inhibitory gradients (S+: green key; S-: parallelogram on a green background) resulted in virtually zero responding all along the shape-orientation dimension; therefore, specific inhibitory control could not be evaluated. All these experiments suggest that definition of this complex stimulus dimension in terms of mere "angular orientation" is inappropriate, and alternative interpretations are discussed.     

Desiring and expecting to work among high school girls: Some determinants and consequences

The effects of mother's and father's work status and of social-psychological intervening variables on high school girls' orientation to the labor force are examined. The dependent variables are separate indicators of whether the girls want and whether they expect to have an occupation. In these data from 1965, a log linear analysis shows that whether the mother worked was the major background influence on the dependent variables; father's occupation had no significant independent effect. In addition, two “ideological” variables, the girl's identification with the mother and beliefs in individual achievement, strongly influenced the dependent variables, in a way that did not merely mediate the background effects. Finally, some consequences of wanting and/or expecting to work are examined, and it is argued that the choice of career pattern (housewife versus paid employment) was a central one in girls' attitudinal structures.     

Perception of childhood dissatisfaction with parents and selected personality traits in adulthood

This study tested the hypotheses that perceptions of childhood dissatisfaction with parents are associated with higher scores on measures of intensity and chronicity of loneliness, anxiety, neuroticism, psychoticism, misanthropy, and external locus of control and lower scores on measures of self-esteem and sociability. The subjects were 537 Iranian students studying in American and Iranian universities. Both hypotheses were confirmed in a multivariate statistical model. We also found that dissatisfaction with parents was related to a lack of satisfactory relationships with peers.     

Group coleadership: a new role for parents of adolescents with anorexia and bulimia nervosa

This paper describes a model for coleadership of a multifamily group which is part of an outpatient treatment program for adolescents with anorexia and bulimia nervosa at The Children's Hospital in Boston. This clinic is a collaborative effort between the Departments of Psychiatry and Adolescent Medicine and has been involved with more than 600 patients and their families. The parents of a recovered adolescent girl have shared group leadership with the author for six years and have added an innovative dimension to the group process as a result of their own experiences. Theoretical and empirical observations are presented and guidelines for maximizing coping abilities are outlined.     

Exploratory study of the relations between spatial ability and drawing from memory

Test scores of 119 students, attending either a public four-year college or a technical school, were related to their proportionality and detail drawing scores on the Memory for Designs Test. In regression models, the ETS Maze Tracing, Eliot-Price Mental Rotations, and Bender-Gestalt tests were consistent predictors of proportionality scores, with the latter two tests uniquely related to these. The ETS Shapes Memory Test and the Form Board Test were the strongest predictors for detail accuracy scores. The Shapes test predicted proportionality when the CTY Visual Memory Test BB was excluded. The models then provided support for the hypothesis that drawing designs from memory, a critical skill in drawing, regardless of whether one focuses on accuracy for proportionality scores or for detail scores, is jointly related to the measures of recognition, production, and traditional spatial ability measures. This study identified multifaceted skills in drawing from memory.     

Arousal, processing, and risk taking: consequences of intergroup anger

Intergroup emotions theory (IET) posits that when social categorization is salient, individuals feel the same emotions as others who share their group membership. Extensive research supporting this proposition has relied heavily on self-reports of group-based emotions. In three experiments, the authors provide converging evidence that group-based anger has subtle and less explicitly controlled consequences for information processing, using measures that do not rely on self-reported emotional experience. Specifically, the authors show that intergroup anger involves arousal (Experiment 1), reduces systematic processing of persuasive messages (Experiment 2), is moderated by group identification (Experiment 2, posttest), and compared to intergroup fear, increases risk taking (Experiment 3). These findings provide converging evidence that consistent with IET, emotions triggered by social categorization have psychologically consequential effects and are not evident solely in self-reports.     

Keeping Simon simple: Examining the relationship between sequential modulations and feature repetitions with two stimuli, two locations and two responses

The present study examined performance across three two-choice tasks that used the same two stimuli, the same two stimulus locations, and the same two responses to determine how task demands can alter the Simon Effect, its distribution across reaction time, and its sequential modulation. In two of the tasks, repetitions of stimulus features were not confounded with sequences of congruent and incongruent trials. This attribute allowed us to investigate the sequential modulation of the Simon Effect in a two-choice task while equalizing the occurrence of feature repetitions. All tasks showed a similar sequential modulation, suggesting that it is not driven by feature repetitions. Moreover, distributional analyses revealed that the advantage for congruent trials decreased as reaction time increased similarly following congruent and incongruent trials. Finally, a large increase in RT was observed when repeated responses were made to novel stimuli and when novel responses were made to repeated stimuli. This effect also showed a sequential modulation regardless of whether the stimulus repeated. The findings suggest that, even in two-choice tasks, response selection is mediated by complex, dynamic representations that encode abstract properties of the task rather than just simple features.