Behavioural style and group cohesiveness as sources of minority influence

Behavioural style and group cohesiveness were tested as sources of minority influence under conditions in which rejection of the minority from the group was possible and under conditions in which it was not. Female subjects (N = 120) were led to believe that they were interacting as a group and that they held a majority position on a relevant issue. The influence agent, ostensibly one of the group members, advocated a minority position throughout their interaction. Three variables were manipulated: group cohesiveness (high or low), behavioural style of the deviate (high or low consistency) and opportunity for rejection of the deviate from the group (possible or not possible). It was predicted that the deviate would be more influential under high cohesive than under low cohesive conditions and that she would be most influential when she was highly consistent and there was no opportunity to reject her. Although both hypotheses were confirmed, unexpected minority influence effects were also found.     

UCSD PASCAL with a VAX as a floppy disk

The increasing sophistication of laboratory microcomputers has brought an attendant need for efficient programming systems. One such system, UCSD PASCAL, has been made commercially available as an adaptable package for many popular microcomputers. This paper addresses the implementation of UCSD PASCAL and describes a powerful extension of the package to use a host timesharing system as a virtual floppy-disk facility.     

Microprocessor uses in a timeshared facility

A number of topics are discussed that are related to developing computer-controlled laboratories in which microprocessors and host machines interact. Experiences are derived from work at the Learning Research and Development Center, University of Pittsburgh.     

Modern aspects of epilepsy research and its application

At present most authors agree with the hypothesis that epilepsy is primarily caused by an imbalance of inhibitory and excitatory transmitter systems of CNS in favour of the latter. Epilepsy research focuses more and more on disorders in structures using amino acids as transmitters. There is a world-wide searching for new antiepileptic strategies with an emphasis on a causally guided therapy. Besides possibilities of pharmacological enhancement of GABA-mediated inhibition, e.g. by recently tested GABA prodrugs, highly potent antagonists of transmitter glutamate, acting as anticonvulsant drugs, are expected to gain in significance for clinical practice.     

Differential cognitive substrates of verbal episodic memory performance in semantic variant primary progressive aphasia and Alzheimer’s disease

Performance on neuropsychological measures of verbal memory requires cognitive abilities beyond memory. We examined the contribution of semantic knowledge in verbal episodic memory for semantic variant primary progressive aphasia (svPPA) or Alzheimer’s disease (AD). 415 AD and 68 svPPA participants completed measures of episodic memory (visual and verbal) and semantic knowledge. A double dissociation existed visual recall predicted verbal recognition in AD, whereas semantic knowledge contributed to verbal recognition in svPPA.     

Understanding of ASD by Siblings is Associated with Warmth and Hostility in the Sibling Relationship

Autism Spectrum Disorder (ASD) impacts not only the child with ASD, but also the entire family system, including siblings. The present study examined perceptions of the sibling relationship in brothers and sisters of children with ASD, as well as how understanding of autism (symptoms, long-term implications of the disorder) in siblings of children with ASD is related to the sibling’s perceptions of quality of the sibling relationship. Siblings (N?=?44, Mean Age?=?10.4 years, SD?=?2.6) of children with ASD were administered an interview assessing their understanding of ASD and self-report questionnaires measuring their perception of the sibling relationship quality. The more siblings understood about ASD, the more hostility they reported by their sibling with ASD. Age of the sibling, conversely, was negatively associated with both hostile and warm behavior by the brother or sister with ASD towards the sibling. More understanding of autism may be associated with more contention within the sibling relationship, whereas older siblings may spend less time with their brother or sister with autism. Results have implications for improving sibling relationship quality, as well as elucidating the complexity of sibling relationships. These findings have further implications for the development of support systems with use of coping skills for improving the quality of the sibling relationship.

     

Stress on the dance floor: the cortisol stress response to social-evaluative threat in competitive ballroom dancers

The social self-preservation theory states that humans have a fundamental motivation to preserve the social self and that threats to the social self perturb biological markers such as cortisol. Five studies were designed to examine the cortisol response to competitive ballroom dancing as a paradigm for real-life social-evaluative threat. Competitive dancing produced substantial increases in cortisol compared to a control day. These increases were not due to the physical strain of dancing and were greater than those found during social-evaluative laboratory stressors. Responses did not habituate across competitions and were mostly elevated under highly focused conditions of threat (couple vs. group competition). These findings support the notion of a social self-preservation system that is physiologically responsive to threats to the social self.