Prolonged inactivation of the hippocampus reveals temporally graded retrograde amnesia for unreinforced spatial learning in rats

We investigated whether systems consolidation of spatial memory could be detected in a non-navigational, spatial-learning test that takes advantage of rats’ natural propensity to preferentially investigate an object that was displaced relative to spatial cues more than an object that remained stationary. Previous studies using navigational spatial-learning tests have generally failed to reveal temporally-graded retrograde amnesia, possibly because the hippocampus needs to be intact for the retrieval and/or processing of navigational information during the test. In the present study, the hippocampus of rats was kept inactivated, at two sites along its septo-temporal axis (dorsal and intermediate), for four consecutive days, beginning either 3 h or 5 days after familiarization to two identical objects in an open field. Rats that had their hippocampus inactivated beginning 5 days but not 3 h after familiarization showed evidence that they remembered the previous location of the displaced object. The results suggest that systems consolidation of spatial memories can be detected using a non-navigational test of spatial memory.     

Mitigating the Harmful Effect of Perceived Organizational Compliance on Trust in Top Management: Buffering Roles of Employees’ Personal Resources

This study considers how employees’ POC—defined as their beliefs that the organizational climate stifles change and values compliance with the status quo—reduce their trust in top management, as well as how this negative relationship might be buffered by access to two personal resources that support organizational change: openness to experience and affective commitment to change. Data from a sample of Pakistan-based organizations reveal that POC reduce trust in top management, but this effect is weaker at higher levels of openness to experience and affective commitment to change. These findings are significant in that they indicate that employees who operate in organizational climates marked by “yea-saying” can counter the difficulty of improving their job situation by drawing from adequate personal resources.     

Health-related quality of life in Parkinson's disease after pallidotomy and deep brain stimulation

This study explored the multidimensional outcome of three neurosurgical interventions for Parkinson's disease (PD): pallidotomy (N = 23), pallidal deep brain stimulation (DBS) (N = 9), and thalamic DBS (N = 7). All patients completed the Sickness Impact Profile (SIP) and the Beck Depression Inventory. Pallidotomy patients also completed the Profile of Mood States, the Beck Anxiety Inventory, and a disease-specific quality of life (QOL) measure, the Parkinson's Disease Questionnaire (PDQ-39). Three months after surgery, all neurosurgical groups showed significant improvements in mood and function, including physical, psychosocial, and overall functioning. Pallidal DBS and pallidotomy patients who completed additional QOL measures reported decreased anxiety and tension, increased vigor, improved mobility and ability to perform activities of daily living, and decreased perceived stigma. Psychosocial dysfunction scores from the SIP were related to depressed mood both at baseline (r = .42) and at followup (r = .45), but the physical dysfunction subscale was not related to mood at either time point, suggesting that disruption of social relationships due to PD may have more impact on affective distress than physical symptoms alone. Results suggest that neurosurgical interventions for PD improve disabling PD motor symptoms and also improve several domains of quality of life.     

Experiences of being homeless or at risk of being homeless among Canadian youths

A qualitative study was undertaken with four groups--immigrants, youths, Aboriginal people, and landlords--in order to explore, compare, and contrast diversity issues among the homeless population and those at risk of homelessness in a larger Canadian city (Calgary, Alberta) with a smaller city (Lethbridge, Alberta), to better understand their and to needs make recommendations for improvement in service delivery and policy formation. This paper focuses on the findings from our sample of youths who shared information on a range of factors that contributed to their being homeless or at risk of being homeless. The youths in this study also shared their positive as well as negative experiences with educators, peers, family members, and social service providers. Canada's homeless include growing numbers of young people, families, women, and members of various ethnic communities, including Aboriginal people and immigrants. Today it is no longer possible to articulate a single silhouette of the homeless, but rather a diversity of profiles is needed. It was in the light of this reality that a study, "Diversity Among the Homeless and Those At Risk," was carried out. It was undertaken with four groups--immigrants, youths, Aboriginal people, and landlords.     

The prediction of stress by values and value conflict

The authors investigated the relationships among stress, values, and value conflict. Data collected from 400 people working in a variety of companies in Flanders indicated that the values of openness to change, conservation, self-transcendence, and self-enhancement were important predictors of stress. Participants open to change reported less stress, whereas participants who had high scores on conservation, self-enhancement, and self-transcendence perceived more stress. People who reported high value conflict also experienced more stress. Separate analyses for men and women showed that there were gender differences in the relationships observed between the 4 value types and stress. These data have noteworthy theoretical and practical implications.     

Saccadic inhibition in reading

In 5 experiments, participants read text that was briefly replaced by a transient image for 33 ms at random intervals. A decrease in saccadic frequency, referred to as saccadic inhibition, occurred as early as 60-70 ms following the onset of abrupt changes in visual input. It was demonstrated that the saccadic inhibition was influenced by the saliency of the visual event (Experiment 3) and was not produced in response to abrupt but irrelevant auditory stimuli (Experiment 1). Display changes restricted to an area either inside or outside the perceptual span required for normal reading produced strong saccadic inhibition (Experiment 2). Finally, Experiments 4 and 5 demonstrated higher level cognitive or attentional modulation of the saccadic inhibition effect.     

Training Family Therapists in a Multicultural Setting

Authors describe a multicultural training model for family therapists and psychologists at a traditionally conservative Afrikaans speaking university in South Africa. Black psychologists are now receiving high priority in a masters degree program that leads to professional registration licensure because of the needs of the population. The authors emphasize the importance of being able to think multidimensionally and creating a context in which students can do the same in such contexts.     

Intimacy and computer communication

The relationship between intimacy and communication which uses computer technology is addressed. Definitions of intimacy are considered, and the nature of intimate conversations which use computers as a communications medium are discussed. Implications for counselling are examined.