No impairment in sign language after right-hemisphere stroke

A 52-year-old right-handed woman who became deaf before the development of speech, suffered an occlusion of the right middle cerebral and a marked stenosis of the right anterior cerebral arteries. She showed no disturbance in the manual sign language or in finger-spelling, in contrast to previous reports of cases with left-sided damage.     

A method for coping with overall productivity when making between-group category comparisons

A straightforward method for dealing with the effect of response productivity when comparing individual scoring categories between groups was presented along with an example. It was contended that percentage comparisons based on group data can circumvent the reliability problems associated with percentage scores derived from single protocols. Other problems connected with ratio and percentage scores were discussed.     

Value beyond truth-value: a practical response to skepticism

Synthese - I aim to offer a practical response to skepticism. I begin (in section one) by surveying a family of responses to skepticism that I term “dogmatic” and argue that they are...     

Influencing health decision-making: A study of colour and message framing

Objective: Previous research has provided evidence that colour associations and frame can influence behavioural intentions to engage in vaccination behaviours. In this study, the extension of these effects to sunscreen application behaviours was investigated. Additional colours and the manner in which colour primes were employed were also explored.

Design: Two hundred and eighty-six college students were primed with either short wavelength colours (blue/purple) or long wavelength colours (red/orange) as part of goal framed sunscreen information pamphlets.

Main outcome measures: Self-reported behavioural intentions to apply sunscreen, immediate affective reaction to stimuli material, anticipated affect towards sunscreen use, and perceived efficacy of preventing skin cancer were measured.

Results: Individuals with no prior intention to use sunscreen expressed greater behavioural intentions to do so after reading a positively framed sunscreen pamphlet that was designed using short wavelength colours. The negatively framed messages and those presented in long wavelength colours did not enhance persuasion.

Conclusions: In accordance with the Unification Theory of Framing, a match between the representations of the target behaviour, the colour prime, and the frame resulted in the greatest amount of persuasion. Creating communications with representations that match the target behaviour could be a powerful tool to increase compliance.     

The roles of perceived task interdependence and group members' interdependence in the development of collective efficacy in university student group contexts

Background . Although the relationship between collective efficacy and group performance has been frequently investigated, a few studies have investigated the development of collective efficacy. Aim . This paper proposes some determinants of collective efficacy in small university groups. Group level hypotheses and research questions relating collective efficacy to collective cognition activities, task interdependence, self‐efficacy for group work, and collective orientation were posited. Sample . The sample comprised 145 university students in 40 work‐groups. Method . A two‐phase longitudinal design was employed in the context of university student groups. All groups were required to perform interdependent academic tasks. Aggregated variables were used after testing for within‐group agreement. Results . The results of multiple regression analysis provided some evidence that the more group members perceived themselves to be interdependent in the early stages of group work and assigned their tasks interdependently during group processes, the more likely they were to develop high collective efficacy in the final stages of group work. Collective efficacy was also related to the group average of self‐efficacy for group work especially when task interdependence was perceived to be high. Conclusions . The results suggest that forming groups with capable university students in group work, strengthening university students' perceptions of themselves as interdependent in the early stages of academic group work and assigning interdependent group tasks during group work may contribute to the development of high collective efficacy.     

Impact of pre-existing levels of hostility and aggression on substance abuse treatment outcome

The impact of the change in level of hostility and aggression on subsequent substance abuse (drug, alcohol, or combined) recovery was investigated. One hundred and thirty-two dually diagnosed veterans completed an inpatient treatment programme at a large DVA Medical Centre. Results showed significant decreases in addiction severity over 3 month and 12 month following-up. At 3 months, pretreatment severity was predictive of drug, alcohol, and drug/alcohol severity whereas change in hostility and aggression scores were not. At 12 months, however, pretreatment severity was predictive only of drug severity whereas change in hostility and aggression were predictive of alcohol and combined drug/alcohol severity. Implications for changes in substance abuse correlates over time are discussed.