Conditioned enhancement of human's liking for flavor by pairing with sweetness

This paper reports a procedure, like classical conditioning, that produces enhancement of liking for flavors by humans. The procedure is “pairing” of a relatively neutral flavor with sugar (a hedonically positive taste). Specifically, subjects drank 24 small samples of flavor A sweetened and 24 small samples of flavor B unsweetened. They were then tested for their liking for flavors A and B, both sweetened and unsweetened. In three different studies, varying in a number of aspects of stimulus presentations and context, a relative enhancement in liking for flavor A appeared both on the day of exposure and 1 week later. An absolute enhancement in liking of flavor B (a “mere exposure” effect) also occurred in two of the three experiments.     

An investigation of two measures of career indecision

The present study compared two recent scales developed to measure career indecision, the Career Decision Scale and the Vocational Decision-Making Difficulty Scale. The subjects were 857 male and female undergraduates. The scales were factor analyzed, the total scores were correlated, and the factor structures were examined for similarities and differences. Test-retest correlations were performed on the items, the total scores, and the factor scores of both measures. Subjects who were satisfied with their career choices were compared with subjects who were unsure, dissatisfied, or undecided about their career choices using the items, total scores, and factor scores. The results are discussed along with the implications for the future development of the scales.     

Interdisciplinary agreement in the diagnosis of headache types

The degree of agreement in independent diagnosis of headache by a neurologist and a clinical psychologist was determined to be 86.4% in a series of 66 consecutive patients. Fifty-five percent of the disagreements were due to the patients' giving different information to the two assessors. This source of disagreement was associated with the patients' having had previous psychiatric treatment.This research was supported in part by Grant NS-15235 from the National Institute of Neurological and Communicative Disorders and Stroke.     

Seniority in the generational transition of laboratory groups: The effects of social familiarity and task experience

The determinants of leadership seniority in laboratory groups were investigated in two experiments. In both experiments a procedure was used in which individual group members were periodically replaced throughout 7 generations. The individuals within the groups folded origami products and traded with other groups so as to earn quarters. In the first experiment the effect of social familiarity on seniority was investigated by comparing a set of standard groups with a set of rotational groups in which the group members moved from group to group between generations and thus always interacted with strangers. There was less seniority in the rotational groups. In the second experiment the effect of experience on seniority was investigated by comparing a set of standard groups with a set of experienced groups in which the new group members were recruited from the standard groups. There was less seniority in the experienced groups. It was found in both experiments, in agreement with previous research, that over generations the subjects earned increasing amounts of money and worked with increasing speed and efficiency.     

SENSORY EXTINCTION AND SENSORY REINFORCEMENT PRINCIPLES FOR PROGRAMMING MULTIPLE ADAPTIVE BEHAVIOR CHANGE

The role of sensory reinforcement was examined in programming multiple treatment gains in self-stimulation and spontaneous play for developmentally disabled children. Two phases were planned. First, we attempted to identify reinforcers maintaining self-stimulation. Sensory Extinction procedures were implemented in which auditory, proprioceptive, or visual sensory consequences of self-stimulatory behavior were systematically removed and reintroduced in a reversal design. When self-stimulation was decreased or eliminated as a result of removing one of these sensory consequences, the functional sensory consequence was designated as a child's preferred sensory reinforcer. In Phase 2, we assessed whether children would play selectively with toys producing the preferred kind of sensory stimulation. The results showed the following. (1) Self-stimulatory behavior was found to be maintained by sensory reinforcement. When the sensory reinforcer was removed, self-stimulation extinguished. (2) The sensory reinforcers identified for self-stimulatory behavior also served as reinforcers for new, appropriate toy play. (3) The multiple treatment gains observed appeared to be relatively durable in the absence of external reinforcers for play or restraints on self-stimulation. These results illustrate one instance in which multiple behavior change may be programmed in a predictable, lawful fashion by using “natural communities of sensory reinforcement.”     

Effects of Cross-Age Peer Tutoring Networks Among Students with Autism and General Education Students

In this investigation peer networks were formed consisting of students with autism and fourth grade peers. They were trained to tutor first grade students in sight word recognition. The purpose of the study was to determine if the target students could be trained effectively as tutors, to determine outcomes for the first graders, and to determine effects on social integration of network students. Effects were measured for implementation of tutoring steps, increases in sight words learned on a weekly basis for the tutees, and social interactions among network students during free time activities. Using a reversal design, with a multiple baseline component, results demonstrated higher gains on weekly pre- and posttests for first graders than control students who received classroom instruction only, successful implementation of peer tutoring steps by the network participants, and increased duration of social interaction time for the target students with autism and network companions. These findings were replicated in the following year. The peer network system for students with autism, thus not only increased their time and social engagement with typical peers but also provided a productive, socially acceptable activity for increasing academic performance for first graders exhibiting delays.     

Quality of social support in mental and physical health

The current study investigates the relationship between social support and mental and physical health. Results indicate that poor functional support (or quality of support) is related to physical health problems while structural support (or social network size) is not. Moreover, although both poor functional and structural support are related to depression and anxiety, functional support is more strongly related to these outcome variables, the strongest relationship being associated with depression. Depression and hostility are also related to social isolation, although the relationship is again stronger for depression. The results suggest that the quality of social relationships is more important than quantity for optimal mental and physical health. The clinical relevance of these findings is that the quality of social support in the lives of individuals is central to recovery and should be addressed in medical and mental health treatment planning whenever it is an etiological or maintaining factor. The author dedicates this paper to her beloved father, Charles VanderVoort and her colleagues Dr. Uwe Stuecher and Dr. Gay Barfield whom she describes as “natural altruists, the rarest and most loving type of people in the world.”     

Medical Technology and Childbirth: Experiences of Expectant Mothers and Fathers

Research and theory on medical technologysuggests that, for many expectant mothers, medicalintervention in pregnancy and childbirth results infeelings of alienation from their bodies and a lack ofcontrol over the childbirth experience. Few studies,however, examine the influence of medical interventionon the expectant father's experience of this significantlife event. In this study, we compare expectant fathers' and mothers' experiences with medicaltechnology during pregnancy and childbirth. In-depthinterviews were conducted with 15 primarily White,middle-class, married couples prior to and after the birth of their first child. Our findings revealdifferences in the impact of medical technology onexpectant mothers' and fathers' perceptions ofinvolvement and control over pregnancy andchildbirth.     

Quality of Social Support in Mental and Physical Health

The current study investigates the relationship between social support and mental and physical health. Results indicate that poor functional support (or quality of support) is related to physical health problems while structural support (or social network size) is not. Moreover, although both poor functional and structural support are related to depression and anxiety, functional support is more strongly related to these outcome variables, the strongest relationship being associated with depression. Depression and hostility are also related to social isolation, although the relationship is again stronger for depression. The results suggest that the quality of social relationships is more important than quantity for optimal mental and physical health. The clinical relevance of these findings is that the quality of social support in the lives of individuals is central to recovery and should be addressed in medical and mental health treatment planning whenever it is an etiological or maintaining factor. The author dedicates this paper to her beloved father, Charles VanderVoort and her colleagues Dr. Uwe Stuecher and Dr. Gay Barfield whom she describes as “natural altruists, the rarest and most loving type of people in the world.”