A high-speed computer-coinpatible event recorder

Design considerations, construction information, and programming considerations of a high-speed event recorder are presented. The device records discrete events on magnetic tape for later processing by a large computer. Although the design information is general, the instrument has 120 event channels, a time resolution of up to 100 microsec, and can record 60 or more events per second.     

Opposing views on animal experimentation: do animals have rights?

Animals have moral standing; that is, they have properties (including the ability to feel pain) that qualify them for the protections of morality. It follows from this that humans have moral obligations toward animals, and because rights are logically correlative to obligations, animals have rights.     

Education and Training of Children's Mental Health Professionals: The Existing and Potential Role of Schools of Public Health

Since the early 1980s, increasing attention has been devoted in the literature to the conceptualization, development, and implementation of integrated and comprehensive mental health systems of care for children and adolescents. In establishing this new children's mental health paradigm of community-based systems of care, there are presently very few well-trained professionals and leaders focused on collaborative (including interagency) initiatives in the delivery of children's mental health services. Nevertheless, the field of public health offers an interdisciplinary setting for the education and training of individuals in children's mental health services. This national survey of all 27 accredited schools of public health in the United States and Puerto Rico examined the existing capacity for and potential to expand educational and training opportunities in the organization, financing, and delivery of children's mental health services.     

Multidimensional Role Ambiguity and Role Satisfaction: A Prospective Examination Using Interdependent Sport Teams

This study examined the prospective relationships between multidimensional role ambiguity and role satisfaction using interdependent sports teams. Midseason perceptions of role ambiguity and role satisfaction were recorded by 246 British secondary school rugby ( n = 156) and field hockey ( n = 90) players. One month later, role satisfaction was assessed again, along with a measure of dispositional negative affectivity. After controlling for the influence of negative affectivity and midseason role satisfaction, midseason role ambiguity explained significant variance in late-season offensive and defensive role satisfaction. Findings support a prospective relationship between role ambiguity and role satisfaction, as predicted by theory (Kahn et al., 1964), and underscore the necessity of controlling for "third" variables. From an applied perspective, results also highlight the importance of ensuring that role ambiguity is avoided within interdependent sports teams.     

CONSUMPTION AND RESPONSE OUTPUT AS A FUNCTION OF UNIT PRICE: MANIPULATION OF COST AND BENEFIT COMPONENTS

We conducted preference assessments with 4 typically developing children to identify potential reinforcers and assessed the reinforcing efficacy of those stimuli. Next, we tested two predictions of economic theory: that overall consumption (reinforcers obtained) would decrease as the unit price (response requirement per reinforcer) increased and that the cost and benefit components that defined unit price would not influence overall consumption considerably when unit price values were equal. We tested these predictions by arranging unit price such that the denominator was one (e.g., two responses produced one reinforcer) or two (e.g., four responses produced two reinforcers). Results showed that consumption decreased as unit price increased and that unit price values with different components produced similar consumption.     

Using Articulated Thoughts in Simulated Situations to Assess Cognitive Activity in Aggressive and Nonaggressive Adolescents

Articulated Thoughts in Simulated Situations (ATSS) is a think aloud method for examining a person's thought content as it unfolds in the situation. We used the ATSS to investigate the cognitive activity of aggressive and nonaggressive male and female adolescents as they listened to an audiotaped depiction of an ambiguous but provocative interaction with another student. Eighty-one adolescents participated in a 2 × 2 factorial experiment. The two factors were gender and aggressive vs. nonaggressive background. Students in the aggressive group had a history of aggressive behavior in the past year that was severe enough to warrant their arrest or suspension from school. Students in the nonaggressive group had no such history. As a secondary measure of anger and aggressiveness, we administered the State-Trait Anger Expression Inventory-2 (STAXI-2). As predicted, males, compared to females, expressed more aggressive intent on the ATSS. Likewise, aggressive, compared to nonaggressive, adolescents expressed more anger and aggressive intent on the ATSS, as well as more intense feelings of anger, less control over their anger, and a greater tendency to externalize angry feelings on the STAXI-2. As expected, scores on the ATSS were related to scores on the STAXI-2. We concluded that the ATSS is a useful method for assessing cognitive activity that may mediate aggressive behavior in adolescents.     

‘Active’ating thoughts about affect: elicitation of physical activity judgements in insufficiently active women

Objective: A growing body of evidence suggests that affective judgements are distinct from, and exert greater influence on, physical activity behaviours than instrumental judgements.

Design: As part of a randomised controlled trial, 110 insufficiently active, female, university students were randomised to (a) an affective mental contrasting condition, (b) an instrumental mental contrasting condition, or (c) a ‘standard’ mental contrasting intervention (with no modifications). In the analyses concerning the trial’s primary outcome, the affective mental contrasting condition was found to be more effective for increasing physical activity than the standard or instrumental conditions. The purpose of this study was to qualitatively examine the physical activity outcomes and obstacles elicited from participants as part of the three mental contrasting interventions within this trial.

Results: 32 lower-order physical activity judgement themes, categorised within seven high-order themes, were derived through the use of the mental contrasting intervention. In addition to identifying several affective and instrumental outcomes and obstacles that have previously been recognised, participants in this study also highlighted contextualised responses that describe complicated relationships that exist between affective and instrumental judgements.

Conclusions: This study provides fine-grained insight into cognitive processes derived from a novel intervention involving insufficiently active women.