Calibration trumps confidence as a basis for witness credibility

Confident witnesses are deemed more credible than unconfident ones, and accurate witnesses are deemed more credible than inaccurate ones. But are those effects independent? Two experiments show that errors in testimony damage the overall credibility of witnesses who were confident about the erroneous testimony more than that of witnesses who were not confident about it. Furthermore, after making an error, less confident witnesses may appear more credible than more confident ones. Our interpretation of these results is that people make inferences about source calibration when evaluating testimony and other social communication.     

The shaping of discourse positions in the development of support and supervision for personal advisers in England

A policy of inclusion has focused the 'gaze' of the UK government toward youth services and resulted in the development of the Connexions service in England. Within that context, the practice and professional identity of careers advisers (now called personal advisers) has changed. Many are working intensively with so-called 'harder-to-help' young people in 'challenging' situations where support and supervision appears to be essential. This paper discusses the findings from a qualitative case study, which sought to question that need and to investigate the perceived purpose of support and supervision. The study explored these perspectives with the aim of foregrounding differences and similarities. It is not suggested that the themes discussed are fixed; however, the discourse of practitioners needs to be heard and not silenced by louder definitions about purpose. The findings, however tentative, may be pertinent for circumstances where guidance and counselling are seen as relevant activities for the promotion of social inclusion.     

Text or talk? Social anxiety, loneliness, and divergent preferences for cell phone use.

This paper investigates whether social anxiety and loneliness lead to contrasting beliefs and preferences among cell phone users towards texting and talking on their cell phones. Three hypotheses are examined: (1) that social anxiety and loneliness are differentially associated with generalized preferences either for texting or for talking on the cell phone, (2) that these preferences are linked to contrasting beliefs concerning the social functionality of the short message service (SMS), and (3) that these divergent beliefs mediate the effects of social anxiety and loneliness on cell phone users' generalized preferences for texting or talking. Results from an Internet questionnaire (N=158) showed that, whilst lonely participants preferred making voice calls and rated texting as a less intimate method of contact, anxious participants preferred to text, and rated it a superior medium for expressive and intimate contact. These divergent beliefs accounted for 36% and 16% of the variance in preference for texting and voice calls, respectively, and significantly attenuated the influence of loneliness and social anxiety when they were added to the regression equations for these measures. Results are discussed in terms of the hyperpersonal possibilities of mobile communications technologies.     

A Self‐Categorization Explanation for the Third‐Person Effect

Three studies tested a self‐categorization theory explanation for the third‐person effect. In Study 1 (N= 49) undergraduate students judged the influence of the National Enquirer, Wall Street Journal, and TV show Friends on themselves, relative to low‐ and high‐status outgroup members, and other undergraduate students. The profile of first‐ and third‐person perceptions was largely consistent with predictions, and the size of the third‐person effect decreased as perceived similarity to target others increased—but only for media that were normative for comparison others. Study 2 (N= 49) provided evidence for this process with different media and showed that the profile of first‐ and third‐person perceptions matched closely with perceived norms of media consumption—but not the social desirability of those media. Study 3 (N= 64) showed that the third‐person effect for the same media and target other shifts with the frame of reference in which the judgment is made. Taken together, the findings are consistent with self‐categorization theory and difficult to reconcile with other explanations.     

Do monkeys think in metaphors? Representations of space and time in monkeys and humans

Research on the relationship between the representation of space and time has produced two contrasting proposals. ATOM posits that space and time are represented via a common magnitude system, suggesting a symmetrical relationship between space and time. According to metaphor theory, however, representations of time depend on representations of space asymmetrically. Previous findings in humans have supported metaphor theory. Here, we investigate the relationship between time and space in a nonverbal species, by testing whether non-human primates show space–time interactions consistent with metaphor theory or with ATOM. We tested two rhesus monkeys and 16 adult humans in a nonverbal task that assessed the influence of an irrelevant dimension (time or space) on a relevant dimension (space or time). In humans, spatial extent had a large effect on time judgments whereas time had a small effect on spatial judgments. In monkeys, both spatial and temporal manipulations showed large bi-directional effects on judgments. In contrast to humans, spatial manipulations in monkeys did not produce a larger effect on temporal judgments than the reverse. Thus, consistent with previous findings, human adults showed asymmetrical space–time interactions that were predicted by metaphor theory. In contrast, monkeys showed patterns that were more consistent with ATOM.     

Intentionality and Compound Accounts of the Emotions

Most philosophers of emotion endorse a compound account of the emotions: emotions are wholes made of parts; or, as I prefer to put it, emotions are mental states that supervene on other (mental) states. The goal of this paper is to ascertain how the intentionality of these subvening members relates to the intentionality of the emotions. Towards this end, I proceed as follows. First, I discuss the problems with the account Justin D'Arms and Daniel Jacobson offer of the intentionality of the emotions; I argue their account is fundamentally misguided by virtue of being motivated by a misunderstanding of the nature of propositional attitudes. Second, I argue against Peter Goldie's claim that an affective component of an emotion contributes to its intentionality. Third, I offer my own compound account of emotions. I argue (1) emotions are mental states that supervene on other mental states, (2) the mental states that constitute the subvenience base of emotion can have nonconceptual and/or conceptual representational content, and (3) an emotion's intentionality supervenes on (but is often not identical to) the intentionality of only one of its subvening members, specifically, the evaluative representation.     

Trait Forgiveness and Dyadic Adjustment Predict Postnatal Depression

The birth of a first child can be stressful on intimate partner relationships and the women having their first child. Conflict can occur, and hurts might be experienced, which could lead to post-partum depression. Thus, capacity for forgiveness with specific hurts might affect post-partum depression. We investigated women having their first child (N?=?52), and examined whether dyadic adjustment, trait forgiveness, and situational forgiving during pregnancy predicted postpartum depression. This study found that marital forgiveness predicted lower levels of depression above and beyond the effects of general dyadic adjustment. Dyadic adjustment and trait forgiveness predicted postpartum depression while situational forgiving was mixed. Postpartum depression researchers are encouraged to consider the inclusion of positive psychology variables, such as forgiveness, in future research studies.     

A kinematic comparison of successful and unsuccessful tennis serves across the elite development pathway

While velocity generation is an obvious prerequisite to proficient tennis serve performance, it is also the only stroke where players are obliged to negotiate a unique target constraint. Therefore, the dearth of research attending to the accuracy component of the serve is surprising. This study compared the body, racquet and ball kinematics characterising successful serves and service faults, missed into the net, in two groups of elite junior female players and one professional female tennis player. Three-dimensional body, racquet and ball kinematics were recorded using a 22-camera VICON motion analysis system. There were no differences in body kinematics between successful serves and service faults, suggesting that service faults cannot be attributed to a single source of biomechanical error. However, service faults missing into the net are characterized by projection angles significantly further below the horizontal, implying that consistency in this end-point parameter is critical to successful performance. Regulation of this parameter appears dependent on compensatory adjustments in the distal elbow and wrist joints immediately prior to impact and also perceptual feedback. Accordingly, coordination of the distal degrees of freedom and a refined perception-action coupling appear more important to success than any isolated mechanical component of the service action.     

Health researchers' ancillary care obligations in low-resource settings: how can we tell what is morally required?

Health researchers working in low-resource settings often encounter serious unmet health needs among participants. What is the nature and extent of researchers' obligations to respond to such needs? Competing accounts have been proposed, but there is no independent standard by which to assess them or to guide future inquiry. I propose an independent standard and demonstrate its use. In conclusion I recommend two areas of focus for future inquiry: what makes an account of researchers' obligations reasonable from the standpoint of both participants and researchers and how general duties of rescue apply to researchers' resource-allocation decision making in low-resource settings.