The effects of divided attention on auditory priming

Traditional theorizing stresses the importance of attentional state during encoding for later memory, based primarily on research with explicit memory. Recent research has begun to investigate the role of attention in implicit memory but has focused almost exclusively on priming in the visual modality. The present experiments examined the effect of divided attention on auditory implicit memory, using auditory perceptual identification, word-stem completion and word-fragment completion. Participants heard study words under full attention conditions or while simultaneously carrying out a distractor task (the divided attention condition). In Experiment 1, a distractor task with low response frequency failed to disrupt later auditory priming (but diminished explicit memory as assessed with auditory recognition). In Experiment 2, a distractor task with greater response frequency disrupted priming on all three of the auditory priming tasks as well as the explicit test. These results imply that although auditory priming is less reliant on attention than explicit memory, it is still greatly affected by at least some divided-attention manipulations. These results are consistent with research using visual priming tasks and have relevance for hypotheses regarding attention and auditory priming.     

Meta-analysis of the relationship between risk perception and health behavior: the example of vaccination.

BACKGROUND: Risk perceptions are central to many health behavior theories. However, the relationship between risk perceptions and behavior, muddied by instances of inappropriate assessment and analysis, often looks weak. METHOD: A meta-analysis of eligible studies assessing the bivariate association between adult vaccination and perceived likelihood, susceptibility, or severity was conducted. RESULTS: Thirty-four studies met inclusion criteria (N = 15,988). Risk likelihood (pooled r = .26), susceptibility (pooled r = .24), and severity (pooled r = .16) significantly predicted vaccination behavior. The risk perception-behavior relationship was larger for studies that were prospective, had higher quality risk measures, or had unskewed risk or behavior measures. CONCLUSIONS: The consistent relationships between risk perceptions and behavior, larger than suggested by prior meta-analyses, suggest that risk perceptions are rightly placed as core concepts in theories of health behavior.     

Trait configurations in self-managed teams: a conceptual examination of the use of seeding for maximizing and minimizing trait variance in teams

In this article, the authors argue that there is no one best way to make placement decisions on self-managed teams. Drawing from theories of supplementary and complementary fit, they develop a conceptual model that suggests that (a) maximization principles should be applied to extroversion variance (i.e., complementary fit), (b) minimization principles should be applied to conscientiousness variance (i.e., supplementary fit), and (c) extroversion variance and conscientiousness variance interact to influence team performance. They also argue that previous research has underestimated the effect of extroversion and conscientiousness variance on performance because of suboptimal design. The authors, therefore, present an alternative method for making team placement decisions (i.e., seeding) that can be used to maximize or minimize variance in teams.     

Working hard and working smart: motivation and ability during typical and maximum performance

The distinction between what people can do (maximum performance) and what they will do (typical performance) has received considerable theoretical but scant empirical attention in industrial-organizational psychology. This study of 138 participants performing an Internet-search task offers an initial test and verification of P. R. Sackett, S. Zedeck, and L. Fogli's (1988) model of typical versus maximum performance: Motivation--in the form of direction, level, and persistence of effort exerted--rose significantly under the maximum performance condition. Consequently, the correlation between motivation--in the form of direction and level of effort--and performance diminished, whereas the correlation between ability--in the form of declarative knowledge and procedural skills--and performance increased under the maximum performance condition. Overall, results confirm the general propositions of the model. Implications for the generalizability of these findings, theory, practice, and directions for future studies of typical and maximum performance are discussed.     

Children's metacognitive judgments in an eyewitness identification task

Two experiments examined children's metacognitive monitoring of recognition judgments within an eyewitness identification paradigm. A confidence-accuracy (CA) calibration approach was used to examine patterns of calibration, over-/underconfidence, and resolution. In Experiment 1, children (n=619, mean age=11 years 10 months) and adults (n=600) viewed a simulated crime and attempted two separate identifications from 8-person target-present or target-absent lineups given lineup instructions that manipulated witnesses choosing patterns by varying the degree of social pressure. For choosers, but not nonchoosers, meaningful CA relations were observed for adults but not for children. Experiment 2 tested a guided hypothesis disconfirmation manipulation designed to improve the realism of children's metacognitive judgments. Children (N=796, mean age=11 years 11 months) in experimental and control conditions viewed a crime and attempted two separate identifications. The manipulation had minimal impact on the CA relation for choosers and nonchoosers. In contrast to adults, children's identification confidence provides no useful guide for investigators about the likely guilt or innocence of a suspect. These experiments revealed limitations in children's metacognitive monitoring processes that have not been apparent in previous research on recall and recognition with younger children.     

Medical disorder,harm, and damage

Theoretical Medicine and Bioethics - Jerome Wakefield’s harmful dysfunction analysis (HDA) of medical disorder is an influential hybrid of naturalist and normative theories. In order to...     

Forcing and the Universe of Sets: Must We Lose Insight?

Journal of Philosophical Logic - A central area of current philosophical debate in the foundations of mathematics concerns whether or not there is a single, maximal, universe of set theory....     

Mindfulness and Acceptance-Based Group Therapy for Social Anxiety Disorder: An Open Trial

Mindfulness and Acceptance-Based Group Therapy (MAGT) for Social Anxiety Disorder (SAD) is based largely on Acceptance and Commitment Therapy (ACT; Hayes et al., 1999), with enhanced mindfulness mostly from Mindfulness-Based Cognitive Therapy (MBCT; Segal et al., 2002). The purpose of this study was to assess the feasibility and initial effectiveness of MAGT for the treatment of SAD. Forty-two SAD patients were invited to take part in an open trial of MAGT. Participants completed measures of social anxiety, mindfulness and acceptance, depression, and rumination at pretreatment, midtreatment (6 weeks), posttreatment (12 weeks), and at a 3-month follow-up session. Twenty-nine participants completed the treatment and these participants reported that the treatment was helpful. Effect sizes for treatment completers ranged from 1.00 to 1.17 for the social anxiety symptom measures at follow-up. Intent-to-treat analyses revealed significant reductions in social anxiety, depression, and rumination and significant increases in mindfulness and acceptance, with effect sizes ranging from .65 to .76 on the social anxiety measures. This study demonstrates that MAGT is feasible and acceptable to SAD patients and provides further support for the use of mindfulness and acceptance-based interventions for the treatment of SAD.     

Christian Engagement with Public Bioethics in Britain: The Case of Human Admixed Embryos

This paper offers an assessment of the prospects for Christianengagement with public bioethical debates in a contemporaryBritish context. One recent example, the debate provoked byproposed legislation for research involving human admixed embryos,is examined briefly. It is argued that this debate has someproblematic features that are characteristic of public ethicaldebates in this context. Next, a proposal is offered as to howsuch bioethical questions may be approached from within a Christiantheological tradition (specifically, a Reformed Protestant tradition).This proposed approach makes use of four "diagnostic questions"to assess whether technological proposals and practices suchas the creation of human admixed embryos can be consistent withthe distinctive Christian narrative of creation, sin, salvationthrough Christ, and promised future hope. The final sectionoffers some reflections on how Christians and churches mightengage, on the basis of this theological approach, with publicethical debates such as the one about admixed embryos.     

Cutthroat cooperation: The effects of team role decisions on adaptation to alternative reward structures

Structural Adaptation Theory proposes that it is more difficult for teams to change from competitive to cooperative reward conditions than it is for them to change in the opposite direction, and this has been labeled the cutthroat cooperation effect [Johnson, M. D., Hollenbeck, J. R., Ilgen, D. R., Humphrey, S. E., Meyer, C. J., & Jundt, D. K. (2006). Cutthroat cooperation: Asymmetrical adaptation of team reward structures. Academy of Management Journal, 49, 103–120]. The current study investigated whether team role discussion can neutralize this effect and promote successful adaptation from competitive to cooperative reward structures. Consistent with our predictions, in a study that involved 75 four-person teams performing a complex task under cooperative reward conditions, we found that teams with a history of competitive rewards performed worse than teams with a history of cooperative rewards in a control condition. However, this effect was neutralized when teams allocated their roles in a team role discussion. This neutralization effect was driven by behavioral coordination and unmet expectations regarding conflict.