Learning and performance effects of accurate and erroneous knowledge of results on time perception

Performance feedback (also known as knowledge of results or KR) has both performance and learning effects on many tasks. Earlier studies have demonstrated performance but not learning effects on time perception tasks. In this experiment, we dissociate and identify these two phenomena on two different time perception tasks. Participants were presented with either accurate (100%) or erroneous (80% or 120% of actual performance) KR on either a reproduction or a numerical estimation time perception task. Accurate (100%) KR reduced the group variability and increased the accuracy of response magnitude but left individual variability unchanged. Erroneous (80% or 120%) KR also reduced the group variability while leaving individual variation unchanged, but decreased the true accuracy of the response, with response magnitudes increasing for the 80% KR group and decreasing for the 120% group. Thus external KR that is in conflict with internal time cues overrides these internal cues and dictates response magnitude on these two tasks. Thus KR provides guidance for these behaviors. KR did not reduce the variability (dispersion) of participants' responses, but centered each participant's responses closer to the targeted performance. This decreased group response variability reflected a performance enhancing effect of KR because group response variability increased after KR was withdrawn. In contrast, response magnitudes remained changed for the duration of the post-KR period, indicating that KR also induced a learned response. Thus individual response variability, group response variability and response magnitude represent dissociable features of performance on these time perception tasks.     

Research ethics for mental health science involving ethnic minority children and youths

In response to U.S. Public Health Service projects promoting attention to disparities in the outcomes of mental health treatments, in July 2001, the American Psychological Association, the National Institute of Mental Health, and the Fordham University Center for Ethics Education convened a group of national leaders in bioethics, multicultural research, and ethnic minority mental health to produce a living document to guide ethical decision making for mental health research involving ethnic minority children and youths. This report summarizes the key recommendations distilled from these discussions.     

Focal distraction: spatial shifts of attentional focus are not required for contingent capture

Contingent capture occurs when distractors that share the target's defining attribute capture attention and slow down target identification. This slowdown has been attributed to an involuntary attentional shift to the location of a pertinent distractor. The present study examined an additional source of delay: the time spent in processing pertinent distractors. In 7 experiments, distractors were presented at fixation, and targets were presented either at fixation or peripherally. Contingent capture invariably occurred when a salient distractor was presented within about 600 ms before the target, even when spatial shifts in attentional focus were ruled out. A 2-stage model is proposed in which stimuli must pass an input filter tuned to the target's defining attribute before gaining access to a high-level stage that is unavailable while a distractor is being processed.     

‘Brain-Malfunction’ Cases and the Dispositionalist Reply to Frankfurt's Attack on PAP

Harry Frankfurt has famously argued against the principle of alternate possibilities (PAP) by presenting a case in which, apparently, a person is morally responsible for what he has done even though he could not have done otherwise. A number of commentators have proposed dispositionalist responses to Frankfurt, arguing that he has not produced a counterexample to PAP because, contrary to appearances, the ability to do otherwise is indeed present but is a disposition that has been ‘masked’ or ‘finked’ by the presence of a counterfactual controller. This article argues that this response to Frankfurt does not undercut his attack on PAP, since there are Frankfurt-style counterexamples to the principle—‘brain-malfunction’ cases—that evade the dispositionalist analysis.     

Christian Churches and Immigrant Support in Canada: An Organizational Ecology Perspective

Canada receives roughly 250,000 immigrants each year, and the government spends considerable resources on assisting them to settle and integrate into Canadian society through the agencies they support. Most of these new immigrants settle in Canada’s largest cities, where churches meet specific needs that extend beyond the capacities of government agencies. In smaller centers, churches cover a wide range of services because few government supports are available. Little is known about the work of churches in Canada in spite of their importance to immigrant settlement and integration. In this study, we examine the services offered to immigrants by Canadian Christian churches. We show how the service provision of Christian churches is constrained by other organizations and groups in their environment, in ways consonant with the organizational ecology framework. Specifically, churches service the needs of immigrants by adapting to specific niche needs and by filling in gaps left by other service providers.     

Family Therapy in Outdoor Behavioral Healthcare: Current Practices and Future Possibilities

This paper highlights the role of the family in the treatment of youth who attend Outdoor Behavioral Healthcare (OBH) programs. It discusses the history of OBH, provides a critical overview of the research on the impact of OBH programs on family functioning, and discusses the importance of increased intentional integration of family therapy into OBH settings. To show this integration, this study presents a case study that highlights the role of the family, as well as the home family therapist throughout the phase of OBH treatment. Areas for future esearch are provided as well as suggestions for the increased utilization of adventure activities with families.     

Bulimic symptomatology and coping in a nonclinical sample.

This study examined the relationship between bulimic symptomatology as measured by scores on the Bulimia Test--Revised and coping orientation as measured by Endler and Parker's Coping Inventory for Stressful Situations given to a nonclinical sample of 164 female college students. A relationship was obtained among emotionally oriented coping, task-oriented coping, and scores on the Bulimia Test.     

Understanding Risk and Protective Factors for Maternal Maltreatment: A Population-Based Comparative Analysis

Journal of Child and Family Studies - This prospective population-based study explored whether mothers who maltreat had different risk and protective factors than mothers who don’t including...     

On the dominance of whole-word knowledge in reading aloud

The localist dual-route model of visual word recognition assumes a routine thataddresses the pronunciation of all words known to the reader (the lexical-semantic pathway) and another routine, operating in parallel, thatassembles pronunciations on the basis of sublexical spelling-sound correspondences. The present experiment exploits theexception effect (in which words that are atypical in terms of their spelling-sound correspondences are named more slowly than typical ones) because it is considered a marker of the joint operation of these two routines. Participants named high- and lowfrequency regular and exception words that were repeated across two blocks of trials. The widely reported interaction between regularity and word frequency is present in Block 1 but is reduced in magnitude in Block 2. DRC, an implemented dual-route model, simulates the data. Taken in conjunction with other reports, the results provide further evidence for a double dissociation between addressed and assembled routines and are consistent with the view that skill in recognizing printed words known to the reader reflects the dominance of orthographic over phonological processing.     

Adolescent perception of mothers' parenting strengths and needs: a cross-cultural approach to curriculum development for parent education

Black, Hispanic, and White American early adolescents (N = 573) were administered the Parent Success Indicator. The performance of their mothers was rated for 60 items, included within six subscales, that consider Communication, Use of Time, Teaching, Frustration, Satisfaction, and Information Needs. Each racial group described favorable attributes of mothers and noted realms of learning where further growth seemed warranted. Statistically significant main effects for race, time spent together, and presence of an adult at home when the adolescent returned from school were reported. No significant main effects for child gender were reported. Based on perceptions of the participants, topics were identified for a common parent curriculum that can serve mothers of each racial group. Additional topics, based on the ratings within each race, were recommended to meet the distinctive learning needs of Black, Hispanic, and White mothers of early adolescents.