Hormones and dichotic listening: evidence from the study of menstrual cycle effects

This report presents evidence for changes in dichotic listening asymmetries across the menstrual cycle, which replicate studies from our laboratory and others. Increases in the right ear advantage (REA) were present in women at phases of the menstrual cycle associated with higher levels of ovarian hormones. The data also revealed correlations between hormone levels and behavioural measures of asymmetry. For example, the pre-ovulatory surge in luteinising hormone (LH) was related to a decrease in left ear scores, which comprised a key part of the cycle related shift in asymmetry. Further analysis revealed a subgroup of women who had not reached postovulatory status by days 18-25 of the cycle, as verified by low progesterone levels. These women showed laterality profiles at days 18-25 that looked more like the other women when measured at the periovulatory phase (i.e., days 8-11). Data were combined with those from a previous study to highlight the stability of effects. Results showed a distinct menstrual cycle related increase in asymmetry in the combined sample. This final comparison confirmed the nature of sex differences in dichotic listening as being dependent on hormone status in women.     

GOD,VALUE, AND NATURALISM

I consider whether there are philosophical developments which can deepen our understanding of God. I focus upon the relation between experience and physical things and the nature of value. I reject the narrow limits of experience presupposed by the verificationist, and the related monopoly of science on reality. I recommend a conception of reality which is rich enough to accommodate physical things and also the intertwining of value in the natural world. I detect structural similarities between these two problems and the problem of God, and consider how they might be related at the level of content.     

Intensive cognitive-behavioural treatment for women with postnatal obsessive-compulsive disorder: a consecutive case series

The postnatal period has been identified as a time of increased risk for the development of OCD. Obsessions and compulsions at this time frequently focus on accidental or deliberate harm coming to the infant and may impact on the sufferer's capacities as a parent. Given the similarities in presentation between OCD at this and other times, cognitive-behaviour therapy is likely to be effective, but there is little information on whether or how adaptations of CBT can be made to maximise effectiveness and acceptability for mothers. There are no data on the impact of successful treatment on parenting. Six consecutively referred cases of postnatal OCD were treated using cognitive-behavioural therapy (CBT) intensively delivered over a two week period. All mothers improved on self-report and clinician-rated measures which were sustained at 3-5 month follow-up. Mothers reported significant benefits in terms of their own symptoms and in parenting in general. The intensive mode of delivery appears to be effective and acceptable for this group. Future work should explore whether particular difficulties in terms of parenting are experienced by this group and whether these persist beyond the remission of the maternal disorder.     

Taxonomising the senses

I argue that we should reject the sparse view that there are or could be only a small number of rather distinct senses. When one appreciates this then one can see that there is no need to choose between the standard criteria that have been proposed as ways of individuating the senses—representation, phenomenal character, proximal stimulus and sense organ—or any other criteria that one may deem important. Rather, one can use these criteria in conjunction to form a fine-grained taxonomy of the senses. We can think of these criteria as defining a multidimensional space within which we can locate each of the senses that we are familiar with and which also defines the space of possible senses there could be.     

The statistical recommendations of the American Psychological Association Publication Manual: Effect sizes,confidence intervals,and meta‐analysis

Estimation based on effect sizes, confidence intervals, and meta‐analysis usually provides a more informative analysis of empirical results than does statistical significance testing, which has long been the conventional choice in psychology. The sixth edition of the American Psychological Association Publication Manual now recommends that psychologists should, wherever possible, use estimation and base their interpretation of research results on point and interval estimates. We outline the Manual's recommendations and suggest how they can be put into practice: adopt an estimation framework, starting with the formulation of research aims as ‘How much?’ or ‘To what extent?’ questions. Calculate from your data effect size estimates and confidence intervals to answer those questions, then interpret. Wherever appropriate, use meta‐analysis to integrate evidence over studies. The Manual's recommendations can assist psychologists improve they way they do their statistics and help build a more quantitative and cumulative discipline.     

Different components of working memory have different relationships with different mathematical skills

A comprehensive working memory battery and tests of mathematical skills were administered to 90 children-41 in Year 1 (5-6 years of age) and 49 in Year 3 (7-8 years of age). Working memory could explain statistically significant variance in number writing, magnitude judgment, and single-digit arithmetic, but the different components of working memory had different relationships with the different skills. Visual-spatial sketchpad (VSSP) functioning predicted unique variance in magnitude judgments and number writing. Central executive functioning explained unique variance in the addition accuracy of Year 1 children. The unique variance explained in Year 3 multiplication explained by phonological loop functioning just missed conventional levels of significance (p=.06). The results are consistent with the VSSP having a role in the development of number writing and magnitude judgments but a lesser role in early arithmetic.     

Self-uncertainty,social identity prominence and group identification

Drawing on uncertainty-identity theory (Hogg, 2007) and referring to the concept of social identity complexity, we conducted two experiments to test the hypothesis that people would identify most strongly with their group if they felt both self-uncertain and that their group's identity was prominent relative to other identities, either because it was distinct from other identities or because they had few other identities. Self-uncertainty was primed in both experiments after participants had been primed to consider their group's attributes to overlap with or be distinct from the attributes of other identities of theirs (Experiment 1, N = 90) or to consider few or multiple other identities they had (Experiment 2, N = 87). As predicted, group identification was strongest under high uncertainty and when identity distinctiveness or few other identities had been primed. Implications of this research for how we conceptualize identity complexity are discussed.     

Diverse Perceptions of the Informed Consent Process: Implications for the Recruitment and Participation of Diverse Communities in the National Children’s Study

We examined the experiences, perceptions, and values that are brought to bear when individuals from different ethnic and cultural backgrounds consider participating in health research. Fifty-three women from Latino, Asian American, Middle Eastern, or Non-Latino, White backgrounds participated in seven English or Spanish focus groups facilitated by trained investigators using a standard protocol. Investigators described the National Children’s Study (NCS) and then asked questions to elicit potential concerns, expectations, and informational needs. Group sessions were audio-recorded, transcribed verbatim, and analyzed using qualitative thematic methods. A major theme that emerged during focus groups was participant self-identification as a member of a cultural group or community when raising issues that would influence their decision to participate in research. A related theme was the belief by some that communities may differ in the ease of participation in the NCS. Identified themes related to the informed consent process included perceived risks, anticipated burden, perceived benefits, informational needs, and decision-making strategies. Although themes were shared across groups, there were cultural differences within themes. Findings indicated that individuals from diverse backgrounds may have different perspectives on and expectations for the research process. To effectively recruit representative samples, it will be important to address a range of issues relevant for informed consent and to consider the impact of participation on both individuals and communities.     

Delay and Age Effects on Identification Accuracy and Confidence: An Investigation Using a Video Identification Parade

A total of 236 children (7–8‐year‐olds and 13–14‐year‐olds) attempted identification from either target‐present (TP) or target‐absent (TA) video parades, after either two days or two weeks, following exposure to a live target. It was found that with TP line‐ups, the most frequent response was a correct identification, but in the TA condition, the most frequent response was a false identification. Under both TP and TA conditions, the 3‐way interaction of delay, age and response was significant. Further analysis revealed that delay was the major contributor of variance, causing an increase in errors for both age groups in TP delayed line‐ups but only for the younger age group in TA delayed line‐ups. Confidence varied as a function of type of identification response made, with the highest confidence being given to a correct identification in a TP line‐up. However, response confidence entered into a number of interactions involving both delay and age. Copyright © 2011 John Wiley & Sons, Ltd.     

Designing Selection Systems for Medicine: The importance of balancing predictive and political validity in high‐stakes selection contexts

Selection into medical education and training is a high‐stakes process. A key unanswered issue is the effectiveness of measuring noncognitive predictors via both low‐fidelity and high‐fidelity selection approaches in this high‐stakes context. We review studies investigating the effectiveness of multiple selection instruments in terms of predictive validity, incremental validity, and applicant reactions in both entry‐level and advanced‐level medical selection. Our results show that the situational judgment test (SJT) is the best single predictor of performance, operationalized in multiple ways. In addition, the low‐fidelity SJT has incremental predictive power over cognitively oriented tests, and high‐fidelity assessment center (AC) exercises add incremental validity over the low‐fidelity (and less costly) selection methods. Concerning applicant reactions, results show that overall, the selection system is positively received. However, the method with the highest predictive validity – the SJT – received comparatively lower face validity ratings which may present a ‘justice dilemma’ for employers. Furthermore, various other stakeholders have a political interest in the selection methods used (e.g., government, the regulators and trade unions).