Expected endings and judged duration

In four experiments, the predictions of an expectancy/contrast model (Jones & Boltz, 1989) for judged duration were evaluated. In Experiments 1 and 2, listeners estimated the relative durations of auditory pattern pairs that varied in contextual phrasing and temporal contrast. The results showed that when the second pattern of a pair either seems to (Experiments 1 and 2) or actually does (Experiment 2) end earlier (later)than the first, subjects judge it as being relatively shorter (longer). In Experiment 3, listeners heard single patterns in which notes immediately preceding the final one were omitted. Timing of the final (target) tone was varied such that it was one beat early, on time, or one beat late. Listeners’ ratings of target tones revealed systematic effects of phrasing and target timing. In Experiment 4, listeners temporally completed (extrapolated) sequences of Experiment 3 that were modified to exclude the target tone. The results again showed that phrase context systematically influenced expectancies about “when” sequences should end. As a set, these studies demonstrate the effects of event structure and anticipatory attending upon experienced duration and are discussed in terms of the expectancy/contrast model.     

The generation of temporal and melodic expectancies during musical listening

When listening to a melody, we are often able to anticipate not onlywhat tonal intervals will occur next but alsowhen in time these will appear. The experiments reported here were carried out to investigate what types of structural relations support the generation of temporal expectancies in the context of a melody recognition task. The strategy was to present subjects with a set of folk tunes in which temporal accents (i.e., notes with a prolonged duration) always occurred in the first half of a melody, so that expectancies, if generated, could carry over to an isochronous sequence of notes in the latter half ofthe melody. The ability to detect deviant pitch changes in the final variation as a function of rhythmic context was then evaluated. Accuracy and reaction time data from Experiment 1 indicated that expectancy formation jointly depends on an invariant periodicity of temporal accentuation and the attentional highlighting ofcertain melodic relations (i.e., phrase ending points). In Experiment 2, once these joint expectancies were generated, the temporal dimension had a greater facilitating effectupon melody recognition than did the melodic one. These results are discussed in terms of their implications for the perceptual processing of musical events.     

The business of ivory tower research: Paradigms for university-corporate partnerships

A university research team in a department of Counseling Psychology initiated three university/industry collaborative projects. While studying quality of work life in the hotel industry, nurse job satisfaction in the health care industry and assertive behavior in the banking industry the research team contributed its academic objectivity and research skills to these clients. At the same time the university received the benefit of a laboratory work environment, as well as the opportunity to apply academic theory. Both parties in the three partnerships benefitted from the collaboration.     

Teachers' selections of boys and girls as prominent pupils

Over 300 teachers and student-teachers were asked to nominate their most noticeable pupils regarding ability, achievement, behavior, and teacher's preoccupation with them, as defined in eight eminently school-relevant categories. Frequencies of male and female names recorded were employed as measures of teachers' perception of saliency of the two sexes. Respondents recalled significantly more boys as prominent in most categories. More boys than girls were perceived as the best students in general and in mathematics in particular, and as possessing high potential. More boys than girls occupied the minds of these teachers after school. Boys appeared to cause the overwhelming majority of discipline problems. On the other hand, more girls were considered very successful in Hebrew and in social skills. Boys received more nominations in each of their five categories of salience then did girls in any of their two categories of salience. No difference was found between sex-related nominations of experienced teachers and student-teachers. Findings indicate that both teachers and future teachers of the elementary grades perceive boys as the majority of salient students. Moreover, the directions of most sex differences found are stereotypical. Such perceptions, unsupported by objective psychometric evidence, may impede sex equity in school practice, and particularly deprive girls of opportunities of full personal development.Part of this study was presented at the Third International Interdisciplinary Congress on Women, Dublin, Ireland, 1987. We would like to thank Hudda Halabi and Tamar Michaeli for their help in coding.     

Early family context and development of adolescent ruminative style: moderation by temperament

We know very little about the development of rumination, the tendency to passively brood about negative feelings. Because rumination is a risk factor for many forms of psychopathology, especially depression, such knowledge could prove important for preventing negative mental health outcomes in youth. This study examined developmental origins of rumination in a longitudinal sample (N=337; 51% girls) studied in preschool (ages 3? and 4? years) and early adolescence (ages 13 and 15 years). Results indicated that family context and child temperament, assessed during the preschool period, were risk factors for a ruminative style in adolescence. Specifically, early family contexts characterised by over-controlling parenting and a family style of negative-submissive expressivity predicted higher levels of later rumination. These associations were moderated by children's temperamental characteristics of negative affect and effortful control. Further, the interaction of these temperament factors exerted an additional influence on later rumination. Implications for prevention and intervention efforts are discussed.     

Problematic Identity Processes: The Role of Identity Distress

This special issue of Identity: An International Journal of Theory and Research explores some of the anxiety, distress, and difficulties that may be encountered in the identity development process. Despite findings documenting the presence of identity distress in samples from a variety of settings and cultures, it has been slowly moving out of direct attention within the world of clinical psychology and psychiatry. This special issue expands on our understanding of identity distress in a number of ways. It adds to our knowledge of prevalence and severity, as well as its psychological correlates. It examines identity distress under the contexts of traumatic exposure and the refugee experience, and it offers some cross-national comparisons. Also offered is a developmental psychopathology perspective as a way to lay the groundwork for increased prevention and intervention work, and an example of such an intervention program for emerging adults. It is hoped that this special issue on identity distress will shine more light on this important, and possibly growing, yet understudied phenomenon, and will contribute toward expanding and enhancing efforts to foster positive youth development.     

Adult Age Differences in the Access and Deletion Functions of Inhibition

ABSTRACT

This study examined age differences in working memory using a delayed-matching-to-sample (DMTS) task. Based on the inhibitory decline hypothesis, which posits that older adults are more susceptible to interference, age differences were expected to be greater for older adults when irrelevant information was present during encoding. Two experiments tested both the access and deletion functions of inhibition. In both experiments, performance was equated for older and younger participants on a no-interference version of the DMTS task to control for age differences in encoding information into working memory. Results consistently showed equivalent effects of distraction for older and younger adults regardless of the difficulty of the perceptual discrimination of targets and distractors, the degree of processing of the distractors, or the semantic relationship between targets and distractors. These results support theories that propose age differences in encoding to explain age differences in working memory, and are inconsistent with theories that propose that older adults are more susceptible to interference than younger adults.     

The relevance of temporal cues in a fish sound: a first experimental investigation using modified signals in cichlids

Playback experiments have been a useful tool for studying the function of sounds and the relevance of different sound characteristics in signal recognition in many different species of vertebrates. However, successful playback experiments in sound-producing fish remain rare, and few studies have investigated the role of particular sound features in the encoding of information. In this study, we set-up an apparatus in order to test the relevance of acoustic signals in males of the cichlid Metriaclima zebra. We found that territorial males responded more to playbacks by increasing their territorial activity and approaching the loudspeaker during and after playbacks. If sounds are used to indicate the presence of a competitor, we modified two sound characteristics, that is, the pulse period and the number of pulses, in order to investigate whether the observed behavioural response was modulated by the temporal structure of sounds recorded during aggressive interactions. Modified sounds yielded little or no effect on the behavioural response they elicited in territorial males, suggesting a high tolerance for variations in pulse period and number of pulses. The biological function of sounds in M. zebra and the lack of responsiveness to our temporal modifications are discussed.