Oxytocin Reduces Face Processing Time but Leaves Recognition Accuracy and Eye-Gaze Unaffected.

Objectives: Previous studies have found that oxytocin (OXT) can improve the recognition of emotional facial expressions; it has been proposed that this effect is mediated by an increase in attention to the eye-region of faces. Nevertheless, evidence in support of this claim is inconsistent, and few studies have directly tested the effect of oxytocin on emotion recognition via altered eye-gaze Methods: In a double-blind, within-subjects, randomized control experiment, 40 healthy male participants received 24 IU intranasal OXT and placebo in two identical experimental sessions separated by a 2-week interval. Visual attention to the eye-region was assessed on both occasions while participants completed a static facial emotion recognition task using medium intensity facial expressions. Results: Although OXT had no effect on emotion recognition accuracy, recognition performance was improved because face processing was faster across emotions under the influence of OXT. This effect was marginally significant (p<.06). Consistent with a previous study using dynamic stimuli, OXT had no effect on eye-gaze patterns when viewing static emotional faces and this was not related to recognition accuracy or face processing time. Conclusions: These findings suggest that OXT-induced enhanced facial emotion recognition is not necessarily mediated by an increase in attention to the eye-region of faces, as previously assumed. We discuss several methodological issues which may explain discrepant findings and suggest the effect of OXT on visual attention may differ depending on task requirements. (JINS, 2016, 22, 1–11

Large expert-curated database for benchmarking document similarity detection in biomedical literature search

Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research fields such that newly developed literature search techniques can be compared, improved and translated into practice. To overcome this bottleneck, we have established the RElevant LIterature SearcH consortium consisting of more than 1500 scientists from 84 countries, who have collectively annotated the relevance of over 180 000 PubMed-listed articles with regard to their respective seed (input) article/s. The majority of annotations were contributed by highly experienced, original authors of the seed articles. The collected data cover 76% of all unique PubMed Medical Subject Headings descriptors. No systematic biases were observed across different experience levels, research fields or time spent on annotations. More importantly, annotations of the same document pairs contributed by different scientists were highly concordant. We further show that the three representative baseline methods used to generate recommended articles for evaluation (Okapi Best Matching 25, Term Frequency-Inverse Document Frequency and PubMed Related Articles) had similar overall performances. Additionally, we found that these methods each tend to produce distinct collections of recommended articles, suggesting that a hybrid method may be required to completely capture all relevant articles. The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods. We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical research.Peer reviewe

Dilemmas of resistance:How concerns for cultural aspects of identity shape and constrain resistance among minority groups

A major theme in social psychological models of collective action is that shared social identity is a critical foundation for resistance and collective action. In this review, we suggest that this foundational role of social identity can be double edged for many minority groups because material disadvantage is often coupled with the historical erosion of key aspects of ingroup culture and identity. Focusing on the role of ingroup language in Welsh national identity and history in relation to African identity, we present an integrative review of our research on five different dilemmas of resistance that can arise when perceived threats to socio-cultural aspects identity sit alongside threats to the material position (in terms of status and power) of the group. We conclude that the central role of social identity in collective action and resistance can itself present challenges for groups whose core sense of who they are has been eroded.</p

Dilemmas of resistance:How concerns for cultural aspects of identity shape and constrain resistance among minority groups

A major theme in social psychological models of collective action is that shared social identity is a critical foundation for resistance and collective action. In this review, we suggest that this foundational role of social identity can be double edged for many minority groups because material disadvantage is often coupled with the historical erosion of key aspects of ingroup culture and identity. Focusing on the role of ingroup language in Welsh national identity and history in relation to African identity, we present an integrative review of our research on five different dilemmas of resistance that can arise when perceived threats to socio-cultural aspects identity sit alongside threats to the material position (in terms of status and power) of the group. We conclude that the central role of social identity in collective action and resistance can itself present challenges for groups whose core sense of who they are has been eroded.</p

Dilemmas of resistance:How concerns for cultural aspects of identity shape and constrain resistance among minority groups

A major theme in social psychological models of collective action is that shared social identity is a critical foundation for resistance and collective action. In this review, we suggest that this foundational role of social identity can be double edged for many minority groups because material disadvantage is often coupled with the historical erosion of key aspects of ingroup culture and identity. Focusing on the role of ingroup language in Welsh national identity and history in relation to African identity, we present an integrative review of our research on five different dilemmas of resistance that can arise when perceived threats to socio-cultural aspects identity sit alongside threats to the material position (in terms of status and power) of the group. We conclude that the central role of social identity in collective action and resistance can itself present challenges for groups whose core sense of who they are has been eroded.</p

'This will bring shame on our nation': the role of anticipated group-based emotions on collective action

In three studies we examined whether the anticipation of group-based guilt, shame and anger predicts the desire to undertake collective action against a proposed ingroup transgression. In Studies 1 (N = 179) and 2 (N = 186), the relation between appraising a proposed ingroup transgression as illegitimate and collective action was mediated (or partially mediated) by anticipated group-based shame and anger. In Study 3 (N = 128) participants with high self-investment group identification were less willing to engage in collective action against the prospective ingroup transgression when aversive anticipated group-based emotions were made salient. This effect was mediated by anticipated group-based shame. We discuss the implications of these results with regard to collective action and the morality of intergroup behavior