Some effects of response-correlated increases in reinforcer magnitude on human behavior

After training under short or long fixed-interval schedules, humans responded under a modified fixed-interval schedule in which magnitude of reinforcement (X or 2X) was minimally correlated with response frequency. Response frequencies that equaled or exceeded a minimum response criterion were followed by the larger reinforcer at the end of the interval; otherwise, the smaller reinforcer was delivered. The modified schedule alternated with the baseline schedule across conditions. In a control condition, the reinforcer magnitudes produced by control subjects were yoked to those of experimental subjects. Experimental subjects, but not control subjects, showed increased responding. In addition to the baseline and modified fixed-interval schedules used in Experiment 1, subjects in Experiment 2 also responded under a second modified fixed-interval contingency in which increases in reinforcer magnitude were more highly correlated with response frequency. Experimental subjects, but not control subjects, showed increased responding under both procedures. Direct comparison of these two procedures showed that the high-correlation procedure produced greater increases in responding than did the low-correlation procedure.     

Affordances after spinal cord injury

Spinal cord injury can cause cognitive impairments even when no cerebral lesion is appreciable. As patients are forced to explore the environment in a non-canonical position (i.e., seated on a wheelchair), a modified relation with space can explain motor-related cognitive differences compared to non-injured individuals. Peripersonal space is encoded in motor terms, that is, in relation to the representation of action abilities and is strictly related to the affordance of reachability. In turn, affordances, the action possibilities suggested by relevant properties of the environment, are related to the perceiver's peripersonal space and motor abilities. One might suppose that these motor-related cognitive abilities are compromised when an individual loses the ability to move. We shed light on this issue in 10 patients with paraplegia and 20 matched controls. All have been administered an affordances-related reachability judgement task adapted from Costantini, Ambrosini, Tieri, Sinigaglia, and Committeri (2010, Experimental Brain Research, 207, 95) and neuropsychological tests. Our findings demonstrate that patients and controls show the same level of accuracy in estimating the location of their peripersonal space boundaries, but only controls show the typical overestimation of reaching range. Secondly, patients show a higher variability in their judgements than controls. Importantly, this finding is related to the patients’ ability to perform everyday tasks. Finally, patients are not faster in making their judgements on reachability in peripersonal space, while controls are. Our results suggest that not moving freely or as usual in the environment impact decoding of action-related properties even when the upper limbs are not compromised.     

Genetic and Environmental Influences on Personal and Rhythmic‐Motor‐Activity Tempo in Children: A Twin Study

In this study, we investigated the degree to which genetics and environmental factors influence the tempo and tempo stability of rhythmic motor activity in young children, using a twin study design. A total of 116 twin children, aged 4 years, were asked to strike two small clash cymbals together in a cyclical manner, in three phases. In the first phase, children were asked to maintain a comfortable personal tempo of rhythmic motor activity (spontaneous motor phase). In contrast, in the other phases, children were required to synchronize rhythmic motor activity in response to the timing of a stimulus tone, or a memorized tempo. Large additive genetic, although negligible shared environmental influences, were observed in the spontaneous motor phase. However, environmental factors were estimated in the other two phases, while the additive genetic factor was nearly zero. These results indicate that the extent of genetic and environmental influences on individual differences in rhythmic motor activity can be modulated under different situations.     

Spaces of the Religious Economy: Negotiating the Regulation of Religious Space in Singapore

Over the past three decades, the theory of religious economy has been established, applied, debated, developed, and rejected. It has proven to be as divisive as any "general theory" of religion should be, and yet its core tenets continue to engage and unite scholars around the world. In response to broader shifts within the sociology of religion, this article reframes religious economy by advancing a spatial approach to its theorization. A spatial approach can help develop new perspectives on the regulation of religion, and the resistant agency of religious groups. With a focus on the "secular monopoly" of Singapore, it demonstrates how the restricted supply of land for religious purposes increases competition between religious groups. To overcome restrictions, religious groups pursue strategies of spatial and organizational boundary crossing. This has led to the closer regulation of space, and highlights the recursive interplay between the regulation and praxis of religion in Singapore.     

Mood and Creativity over Time in a Bipolar Participant

When depression alternates with mania, as in a bipolar affective disorder, creativity might be enhanced. To investigate this, we employed a single‐subject design, looking at both affective space and the spectral covariation of mood and creativity in a participant presenting with bipolar affective disorder. The study was conducted over a period of 54 days, and employed a standard measure of mood (the Brief Mood Introspection Scale) and a standard task of creativity (Alternative Uses Task). Both positive affect and negative affect appear to be somewhat undifferentiated for this participant, and her mood space does not conform to that described by the accepted major dimensions of Arousal and Pleasure. Conceivably, this is because of her rapid mood fluctuations. A 2.7‐day periodicity was found for Tired, Peppy, Nervous, and Calm, on the one hand, and ideational fluency, ideational flexibility, and originality, on the other. In addition, a 9‐day periodicity was common to Happy, Sad, and Gloomy—all three affects clustering in the same affective space—together with both ideational flexibility and originality. This finding brings into question the relationship between creativity and both positive and negative mood.     

Factors contributing to individual differences in facial expression categorisation

Individuals vary in perceptual accuracy when categorising facial expressions, yet it is unclear how these individual differences in non-clinical population are related to cognitive processing stages at facial information acquisition and interpretation. We tested 104 healthy adults in a facial expression categorisation task, and correlated their categorisation accuracy with face-viewing gaze allocation and personal traits assessed with Autism Quotient, anxiety inventory and Self-Monitoring Scale. The gaze allocation had limited but emotion-specific impact on categorising expressions. Specifically, longer gaze at the eyes and nose regions were coupled with more accurate categorisation of disgust and sad expressions, respectively. Regarding trait measurements, higher autistic score was coupled with better recognition of sad but worse recognition of anger expressions, and contributed to categorisation bias towards sad expressions; whereas higher anxiety level was associated with greater categorisation accuracy across all expressions and with increased tendency of gazing at the nose region. It seems that both anxiety and autistic-like traits were associated with individual variation in expression categorisation, but this association is not necessarily mediated by variation in gaze allocation at expression-specific local facial regions. The results suggest that both facial information acquisition and interpretation capabilities contribute to individual differences in expression categorisation within non-clinical populations.     

So many lifetimes locked inside: reflecting on the use of music and songs to enhance learning through emotional and social connection in Trainee Clinical Psychologists

Music is universal; it can provide a common language that speaks from the heart enabling others to connect with the private felt experiences of others regardless of differences within or between people. This ability to empathise with, and understand, the position of others from differing backgrounds is an important competency within the therapeutic work of Clinical Psychologists. There are many facets to diversity just as there are many facets to music. Diversity in music genres can reflect diversity in people. Indeed, there is music to cater for all tastes, cultural/ethnic backgrounds, gender, age and generations with listening often being guided by individual preferences. In the United Kingdom training to become a Clinical Psychologist consists of a university-based 3-year full time professional research doctorate funded through the National Health Service. Trainees work on placements 3 days a week and attend university for academic and research teaching 2 days a week. As part of the academic programme, Trainees undertake experiential learning through workshops and methods such as Problem-Based Learning (PBL). One of the PBL exercises is based on a typical referral within an Adult Mental Health (AMH) service. For the AMH PBL exercise music is used to enhance trainees’ ability to connect emotionally with the personhood of referrals, consider associated complexities, and to reflect on personal and professional boundaries and reflective practice during training and beyond. This paper reflects on the utility of music and songs to enhance the learning experience.     

Conceptions of love in Ghana: An exploration among Ghanaian Christians

We explored conceptions of love from the perspective of Ghanaian Christians. Using an ethnographic approach, we interviewed 61 participants (males = 39; females = 22; age range 20 to 70) on their understanding and experiences of love in the context of family. Thematic analysis of the interview data revealed understandings of love expression in meeting material needs (of children, spouse, parents, and close relatives), helping other people in need (including the elderly, friends, and strangers), and affectionate care. Communal and maintenance-oriented love appears to characterise love expression among Ghanaian Christians.     

可预测性和空格对中文阅读影响的眼动研究

实验采用EyeLink II 眼动仪,以30名大学生为被试,采用2（预测性：高、低）×3（空格：正常无空格、词间空格、非词空格）被试内设计,考察了预测性和空格对中文阅读影响,探讨了模块化理论和相互作用理论的争论。结果发现：词的预测性和空格两因素的主效应显著,但二者之间无交互作用,符合模块化理论的预期。