TEACHING THE HANDICAPPED TO EAT IN PUBLIC PLACES: ACQUISITION,GENERALIZATION AND MAINTENANCE OF RESTAURANT SKILLS

This study examined classroom-based instruction in restauranting skills for handicapped persons. Three male students were taught each of four skill components in sequential order: locating, ordering, paying, and eating and exiting. Training was implemented in a multiple baseline design across subjects and consisted of modeling and role playing in conjunction with photo slide sequences and a simulated ordering counter. The use of a menu containing general item classes and a finger matching procedure for identifying errors in the delivery of change greatly reduced the reading and math skills necessary to enter and complete the program. Periodic probes were conducted in a McDonald's restaurant prior to, during, and up to one-year following the termination of training. In addition, two probes (overt and covert observation) were conducted in a Burger King restaurant to assess further generalization to a location different from the one depicted throughout training. Results showed that students' performance on restaurant probes improved as a result of training, generalized to novel settings, maintained over an extended period of time, and was comparable to that of a normative sample of nonretarded persons.     

The effect of modification of expressive displays on vicarious emotional arousal

Several recent experiments have demonstrated that modulation of the facial expressive response is accompanied by changes in autonomic arousal and subjective response to painful stimuli. The present study asked whether facial self-regulation may also bring about changes in covert vicarious emotional experience. Three groups of subjects were exposed to a videotaped model displaying intermittent pain to shock in a differential vicarious autonomic conditioning paradigm. Subjects in the inhibit and amplify groups were asked, respectively, (a) to inhibit their facial muscles or (b) to pose a facial response of pain when the model was shocked. It was predicted that the inhibit group would show less autonomic arousal to the model's expressive display (empathy) and less conditioning (as measured by skin conductance and heart rate change), and the amplify group more empathy and conditioning, than a third group who was given no facial instruction. In fact, the amplify group showed more skin conductance arousal, heart rate acceleration, and activity in response to the model's expressive display of pain than did the other two groups (which were not different from each other), but no more autonomic or facial conditioning. The overall pattern of physiological data is interpreted as generally supportive of a facial feedback theory of emotion: where significant between-groups' differences were obtained in facial activity, as in vicarious instigation, autonomic arousal differences also emerged; where no expressive differences were obtained, as in vicarious conditioning, no differences in autonomic arousal were found.     

Taking DNA to market and regulatory default

The public debate on recombinant DNA research has ended even though significant issues of public interest remain undecided or untouched. The reason for the termination of other than muted public discussion is not simply the removal of an initial fear of catastrophic biohazards. With the cessation of public debate over such hazards came also the dissolution of most public forums. The ends to which recombinant DNA research and development ought to be directed are not matters of public debate. With the transfer of basic research knowledge to the private sector, that sector's proprietary interests and ownership prerogatives effectively deny any continued public participation in charting the future of genesplicing technology and its application.     

Salient features of color space

Recent research has demonstrated that focal regions of color space are cognitively more salient than nonfocal regions. Employing a linguistic hedge task, the experiment here sought mainly to verify the cognitive primacy of loci representing Berlin and Kay’s first four chromatic categories over foci representing the remainder. The experimental results failed to support the primacy hypothesis, an outcome that gives rise to a number of theoretical implications. Additional questions in the analysis concerned the relationship between the salience of a color and its lightness (Munsell value) and saturation (Munsell chroma). While the results permit no simple interpretation for lightness, a definite trend emerged in the case of saturation.     

Isolating causal effects through experimental changes in parent-child interaction

A distinction is made between functionaland intentionalcontrol in parent-child interaction. These concepts are drawn, respectively, from opérant and cognitive models of interaction process. Experimental evidence is presented that cognitive factors such as expectations or hypotheses indeed affect the relations between parents and their own children. This necessitates a further distinction between long-termand short-termcausal effects: Since changes in parents' expectations for their children may lag behind actual changes in children's behavior, short-term effects inferred from observations of ongoing interactions may not reflect the long-term dynamics of the relationship.     

Hemispheric asymmetries in faculty and student musicians and nonmusicians during melody recognition tasks

Current research has suggested that musical stimuli are processed in the right hemisphere except in musicians, in whom there is an increased involvement of the left hemisphere. The present study hypothesized that the more musical training persons receive, the more they will rely on an analytic/left-hemispheric processing strategy. The subjects were 10 faculty and 10 student musicians, and 10 faculty and 10 student nonmusicians. All subjects listened to a series of melodies (some recurring and some not) and excerpts (some actual and some not) in one ear and, after a rest, to a different series of melodies in the other ear. The task was to identify recurring vs. nonrecurring melodies and actual vs. nonactual excerpts. For student musicians, there was a right-ear/left-hemispheric advantage for melody recognition, while for student nonmusicians, the situation was the reverse. Neither faculty group showed any ear preference. There were no significant differences for excerpt recognition. Two possible explanations of the faculty performance were discussed in terms of physical maturation and a functionally more integrated hemispheric approach to the task.     

A psychometric analysis of the Personal Attributes Questionnaire

The psychometric properties of the Personal Attributes Questionnaire were examined in independent samples of male and female high school students, college students, and adults. In each of the six samples a two-factor structure (masculinity/instrumentality and femininity/expressivity) paralleling the empirically derived scales was found. Additional factor analyses of negative masculine and feminine traits were reported. Discriminant analyses revealed highly significant differentiation between the sexes. The reliabilities (Cronbach alpha) of the unit-weighted scales in each sample were also satisfactory.Support for this research was provided by NASA Grant NSG 2065 (Robert L. Helmreich, Principal Investigator) and NSF Grant BNS 78-08911 (Janet T. Spence and Robert L. Helmreich, Principal Investigators). The article was prepared while the second author was a Fellow at the Center for Advanced Study in the Behavioral Sciences, with support from the Spencer Foundation, NIMH Grant 5T32MH14581-03, and the University of Texas Research Institute.