Use of central and peripheral optical flow in stance and locomotion in young walkers

Young walkers (up to 5 years of age) were presented with optical flow in a moving room. Flow was global or was restricted to either the center or the periphery of the visible optic array. On standing trials the response rate was greatest when peripheral flow was available. The availability of central flow had a smaller effect on standing, and the younger children showed greater response rates to frontal flow than did the older ones. There was a strong negative correlation between age and response rate for all conditions. Flow also affected stability during locomotion. Response rate was again related to the location of the available flow. It is concluded that children show the same relative sensitivity for flow in the periphery of the dynamic structure of the optic array as has been observed in adults, but that this differentiation of different areas of optical structure is not yet fully developed when children learn to stand.     

The critical dream incident in pastoral psychotherapy

Pastoral psychotherapy needs to re-cover one of the most authentic tools of its trade ... the healing dream encounter. A brief outline of operational prejudices and theory prepares discussion of the use of such dream work within a marital system. It is stressed that the dream came aspart of a careful and multi-focused therapy which used the best of psychotherapeutic methodologies. The dream incident reported came as part of the climactic end-stage environment of this counseling experience. A few concluding comments are made about the ongoing schools of thought on dream function and their relationship to pastoral psychotherapy.Dr. Gibson is Counseling/Education Minister at the Christian Counseling Service, 424 South K Street, Tacoma, Washington, 98405. His clinical interest focuses on the dream and similar modes of altered states of consciousness as a direct form of religious experiencing and healing.     

Lateralized hand gesture during speech

A group of individuals conversing in natural dyads and a group of lecturers were observed for lateral hand movement patterns during speech. Right-handed individuals in both groups displayed a significant right hand bias for gesture movements but no lateral bias for self-touching movements. The study provides external validity for previous laboratory studies of lateralized hand gesture. The results were interpreted as evidence of a central processor for both spoken and gestural communication.     

Disability, Connectivity and Transgressing the Autonomous Body

This paper explores the interconnectedness of persons with disabilities, technologies and the environment by problematizing Western notions of the independent, autonomous subject. Drawing from Deleuze and Guattari's reconfiguration of the static subject as active becoming, prevailing discourses valorizing independence are critiqued as contributing to the marginalization of bodies marked as disabled. Three examples of disability "dependencies"-man-dog, man-machine, and woman-woman connectivities-are used to illustrate that subjectivity is partial and transitory. Disability connectivity thus serves a signpost for an expanded understanding of subjectivity and suggests a radically altered ethics that is no longer premised on individual rights.     

The effect of perceived parental involvement and the use of growth-fostering relationships on self-concept in adolescents participating in gear up

Adolescence is marked by physical, cognitive, and social changes which affect how individuals perceive themselves. However, individuals do integrate their perceptions with those of significant others. Adolescents' self-concept is influenced by their relationships with family, peers, mentors, and community groups. In this study, the characteristics of these relationships are examined as well as the perception of parental involvement. The effect of perceived parental involvement and the use of growth-fostering relationships on self-concept was examined using 78 adolescents who were participating in GEAR UP (Gaining Early Awareness of Readiness for Undergraduate Programs). Results support the influence of family, peers, mentors, and involvement in community groups on adolescent self-concept.     

A longitudinal study of the moderating role of extraversion: leader-member exchange, performance, and turnover during new executive development

Identifying factors that help or hinder new executives in "getting up to speed" quickly and remaining with an organization is vital to maximizing the effectiveness of executive development. The current study extends past research by examining extraversion as a moderator of relationships between leader-member exchange (LMX) and performance, turnover intentions, and actual turnover for an executive sample. The sample consisted of 116 new executives who were surveyed prior to starting their employment and at 3 months postentry. A total of 67 senior executives rated these new executives in terms of overall performance at 6 months postentry. Turnover data were gathered from company records 3 1/2 years later. Hierarchical regression results showed that LMX was not related to performance or turnover intentions for those high in extraversion; but for individuals low in extraversion, there was a relation between LMX, performance, and turnover intentions. Furthermore, survival analyses showed that LMX was only related to turnover-hazard rate for individuals low in extraversion.     

Interpersonal mistreatment in the workplace: the interface and impact of general incivility and sexual harassment

This article examined the relationships and outcomes of behaviors falling at the interface of general and sexual forms of interpersonal mistreatment in the workplace. Data were collected with surveys of two different female populations (Ns = 833 and 1,425) working within a large public-sector organization. Findings revealed that general incivility and sexual harassment were related constructs, with gender harassment bridging the two. Moreover, these behaviors tended to co-occur in organizations, and employee well-being declined with the addition of each type of mistreatment to the workplace experience. This behavior type (or behavior combination) effect remained significant even after controlling for behavior frequency. The findings are interpreted from perspectives on sexual aggression, social power, and multiple victimization.     

Tactile spatial sensitivity and anisotropy

A gap detection task was examined for its usefulness as a measure of tactile spatial sensitivity and as a measure of anisotropy. In Experiment 1, sensitivity was measured with a gap detection task both with and without a latex glove at three locations on the hand: the fingerpad, fingerbase, and palm. Results showed that sensitivity varied as a function of location and was correlated with changes in the density of innervation of the primary afferent fibers. In accord with other measures of spatial sensitivity, the glove had a moderate effect on sensitivity in the gap detection task. The results both with and without the glove were more similar to those obtained using another measure of spatial sensitivity, the grating orientation task, than to those obtained using the smooth-grooved task, which is considered an intensive measure. In Experiments 2-4, anisotropy was examined using the gap detection and grating orientation tasks, as well as the smooth-grooved task. Locations on the index finger, palm, and arm were tested. Results indicated that anisotropy was revealed only by tasks that relied on spatial cues. The differences between spatial sensitivity measured in the proximal-distal orientation as compared with the lateral-medial orientation varied by location and were as much as 2.35/1. The results are discussed in terms of what they may reveal about the underlying mechanisms responsible for tactile anisotropy.     

Cumulating retrieval inhibition in semantic and lexical domains

In 3 experiments the authors examined changes in successive exemplar generation percentages within categories defined semantically (e.g., fruit-P, fruit-A, fruit-M) and by 1st letter (e.g., insect-C, sport-C, car-C), with a mixed control condition (e.g., fruit-P, insect-C, disease-M). Retrieval success declined across 12 successive items in both semantic and letter categories, with no change for the mixed condition. This retrieval inhibition is unrelated to taxonomic frequency of exemplars within either letter or semantic categorical structures. Furthermore, semantic retrieval inhibition appears to be long lasting, suggested by the decline in retrieval percentage across successive 12-item blocks in both the mixed and letter conditions. The authors suggest that different mechanisms underlie the inhibition found in the semantic (suppression) and letter (interference) conditions.     

Cognition at risk: Gestalt/feature-intensive processing,attention deficit,and substance abuse

Attention deficit hyperactive disorder (ADHD) is associated with elevated levels of substance abuse, but the cognitive linkages involved have been little explored. The present study builds upon earlier work showing that more gestalt, as opposed to feature-intensive, styles of processing are conductive to substance abuse, especially in those with ADHD symptoms. The work reported here indicates that a protective factor against substance abuse may lie in relatively efficient heuristic processing, especially synthetic or inferential heuristic processing, but further demonstrates that those with ADHD symptoms tend to have poorer abilities in this regard, even at the subclinical, nondiagnosed level. Results are discussed in terms of the gestalt/featureintensive processing theory of cognition.