A new protocol for investigating visual two-choice discrimination learning in lizards

Animal Cognition - One of the most widely studied abilities in lizards is discrimination learning. The protocols used to test lizards are often novel or adapted from other taxa without proper...     

Do Teachers maintain their Expectation Bias for students? A longitudinal investigation

Whether teachers maintain their expectation bias for students over time is crucial for understanding self-fulfilling prophecy effects. However, the stability of teacher expectation bias has been largely ignored in the literature. We examined the stability of teacher expectation bias across a sample of teachers and the change trajectories of teacher expectation bias across high-, medium-, and low-expectation teacher groups across all teachers and in the curriculum areas of mathematics, Chinese, and English. Our analyses were based on two-year longitudinal data with four time points from 567 Chinese senior high school students and their 50 teachers. The results showed that across all teachers, teacher expectation bias at the individual student level was dynamic over time. That is, teachers seemed to adjust their initial expectation bias in the first few months but then maintained the adjusted expectation bias afterwards. However, when students moved from Grade 11 to Grade 12 (the last year of high school), teachers seemed to change their expectation bias again. The evidence from HLM analyses further supported these results. That is, all the high- and low-expectation teachers alleviated their initial expectation bias significantly in the first six months and then adhered to their adjusted expectation bias. However, when students moved to the last year of high school, some high- and low-expectation teachers’ expectation biases were volatile again. Nevertheless, most high- and low-expectation teachers (except for Chinese low-expectation teachers) tended to either over-estimate or under-estimate their students across two school years. Further, compared to Chinese and mathematics teachers, English teachers’ biases seemed to be even more stable. Our findings suggested that some teachers consistently over- or under-estimated their students over an extended time period and this could have implications for student outcomes.

     

Verbal irony processing: How do contrast and humour correlate?

Verbal irony relies on contrast, that is, incongruity between the situational context and the ironic assertion. But is the degree of contrast related to the perceived humorousness of ironic comments? We answered this question by conducting two experiments. In the first experiment, participants were asked to read a list of sentence pairs (ironic or control) and judge the extent to which the meaning of the first sentence contrasted with that of the second. In the second experiment, participants were invited to rate the humorousness of ironic comments compared with their literal counterparts. Results showed that ironic remarks were rated as more contrasting and more humorous than their literal counterparts, but that humour only emerged from a moderate contrast.     

The Effects of Prior Learned Strategies on Updating an Opponent's Strategy in the Rock,Paper, Scissors Game

To explore how model building adapts to changing environments, we had participants play “rock‐paper‐scissors” against a computer that played a frequency bias or a player‐dependent bias and then switched. Participants demonstrated their use of prior experience in how quickly they recognized and exploited changes in the computer's play strategy; in general, the more similar the strategies, the more efficient the updating. These findings inform our understanding of previously reported updating impairments in right‐brain damaged patients.     

The four tasks of development ethics at times of a changing climate

This paper argues that the challenges posed by climate change and the need to quickly move toward a sustainable low-carbon future require the contributions of development ethics. I propose four tasks for development ethics. The first relates to unpacking the urgency posed by climate change by showing how, from an ethical perspective, the impacts of climate change are extremely dangerous risks, especially for those most vulnerable, and thus require immediate attention. The second relates to a better understanding of the components of well-being. The third relates to concerns regarding the global commons and to the need to reframe key components of socio-ecological balance as public goods. The fourth and last task of development ethics refers to the multiple trade-offs and dilemmas in the processes leading to a low-carbon and equitable future arguing for strengthening public deliberation and democracy.     

The Effects of rTMS on Impulsivity in Normal Adults: a Systematic Review and Meta-Analysis

Impulsivity is a multi-dimensional construct that is regarded as a symptom of many psychiatric disorders. Harm resulting from impulsive behaviour can be substantial for the individuals concerned, for their social network, and for wider society. Therefore, the importance of developing therapeutic interventions to target impulsivity is paramount. We conducted a systematic review and meta-analysis of the literature from AMED, Embase, Medline, and PsycINFO databases on the use of repetitive transcranial magnetic stimulation (rTMS) in healthy adults to modulate different subdomains (motor, temporal and reflection) of impulsivity. The results indicated that rTMS has distinct effects on different impulsivity subdomains. It has a significant, albeit small, effect on modulating motor impulsivity (g?=?0.30, 95% CI, 0.17 to 0.43, p?<?.001) and a moderate effect on temporal impulsivity (g?=?0.59, 95% CI, 0.32 to 0.86, p?<?.001). Subgroup analyses (e.g., excitatory vs. inhibitory rTMS, conventional rTMS vs. theta burst stimulation, analyses by stimulation sites, and type of outcome measure used) identified key parameters associated with the effects of rTMS on motor and temporal impulsivity. Age, sex, stimulation intensity and the number of pulses were not significant moderators for effects of rTMS on motor impulsivity. Due to lack of sufficient data to inform a meta-analysis, it has not been possible to assess the effects of rTMS on reflection impulsivity. The present findings provide preliminary evidence that rTMS can be used to modulate motor and temporal impulsivity in healthy individuals. Further studies are required to extend the use of rTMS to modulate impulsivity in those at most risk of engaging in harmful behaviour as a result of impulsivity, such as patients with offending histories and those with a history of self-harming behaviour.     

A Return to “The Clinic” for Community Psychology: Lessons from a Clinical Ethnography in Urban American Indian Behavioral Health

Community psychology (CP) abandoned the clinic and disengaged from movements for community mental health (CMH) to escape clinical convention and pursue growing aspirations as an independent field of context‐oriented, community‐engaged, and values‐driven research and action. In doing so, however, CP positioned itself on the sidelines of influential contemporary movements that promote potentially harmful, reductionist biomedical narratives in mental health. We advocate for a return to the clinic—the seat of institutional power in mental health—using critical clinic‐based inquiry to open sites for clinical‐community dialogue that can instigate transformative change locally and nationally. To inform such works within the collaborative and emancipatory traditions of CP, we detail a recently completed clinical ethnography and offer “lessons learned” regarding challenges likely to re‐emerge in similar efforts. Conducted with an urban American Indian community behavioral health clinic, this ethnography examined how culture and culture concepts (e.g., cultural competence) shaped clinical practice with socio‐political implications for American Indian peoples and the pursuit of transformative change in CMH. Lessons learned identify exceptional clinicians versed in ecological thinking and contextualist discourses of human suffering as ideal partners for this work; encourage intense contextualization and constraining critique to areas of mutual interest; and support relational approaches to clinic collaborations.     

Dual-task automatization: The key role of sensory–motor modality compatibility

How do people automatize their dual-task performance through bottleneck bypassing (i.e., accomplish parallel processing of the central stages of two tasks)? In the present work we addressed this question, evaluating the impact of sensory–motor modality compatibility—the similarity in modality between the stimulus and the consequences of the response. We hypothesized that incompatible sensory–motor modalities (e.g., visual–vocal) create conflicts within modality-specific working memory subsystems, and therefore predicted that tasks producing such conflicts would be performed less automatically after practice. To probe for automaticity, we used a transfer psychological refractory period (PRP) procedure: Participants were first trained on a visual task (Exp. 1) or an auditory task (Exp. 2) by itself, which was later presented as Task 2, along with an unpracticed Task 1. The Task 1–Task 2 sensory–motor modality pairings were either compatible (visual–manual and auditory–vocal) or incompatible (visual–vocal and auditory–manual). In both experiments we found converging indicators of bottleneck bypassing (small dual-task interference and a high rate of response reversals) for compatible sensory–motor modalities, but indicators of bottlenecking (large dual-task interference and few response reversals) for incompatible sensory–motor modalities. Relatedly, the proportion of individuals able to bypass the bottleneck was high for compatible modalities but very low for incompatible modalities. We propose that dual-task automatization is within reach when the tasks rely on codes that do not compete within a working memory subsystem.

     

Sources of evaluation of parental behaviors as predictors of achievement outcomes

Parents contribute to their children’s academic achievements by supporting their basic psychological needs. Parents’ need supporting behaviors (NSB) were expected to predict positive academic outcomes such as students’ academic performance and persistence intentions. The present study tested the contribution of parental NSB by distinguishing which of the source of evaluation (parent or adolescent) or specific NSB (autonomy support, involvement, structure) was a better predictor of youths’ academic performance and persistence intentions. This prospective study used a sample of 435 mother–adolescent dyads and 246 father–adolescent dyads, who completed two questionnaires a year apart. Results suggested that poor agreement between sources precluded the adoption of a multitrait-multimethod model. Using distinct factors for mothers, fathers, and adolescents to evaluate each NSB, different predictions were found for each outcome. Our results showed stronger contributions for paternal behaviors than for maternal ones, from the perspective of both students and their parents. These findings are examined in light of theories and research on parenting and education.