Bifurcations à partir/en direction de carrières artistiques : analyse structurale de récits biographiques

Referring to the artistic careers that particularly attract young people today, the article seeks to clarify the process of changing direction in the light of the chain of experienced events and the thinking involved when choosing a professional career. Considering training periods as a valuable opportunity to look back at past experiences and look forward to a professional future, it examines four cases in which the subjects decided to retrain, involving a shift to or from artistic careers. Structural analyses of the biographical interviews enabled us to compare the main life events of the subjects, viewed in relation to the past, present and future, the agents intervening in their career path, and the arguments underlying their decisions. On this basis, the factors that triggered the bifurcation, the interventions of significant others, and the relationship with time when making the change, are described and discussed from a counselling perspective.     

人脑的奥秘能否由人脑自身揭示--浅谈神经科学现代研究方法

神经科学研究是学科、多层次的。神经科学的每一次飞跃几乎都与某种研究方法的出现有关。从形态学的束路追踪法、组织化学法、原位杂交法、其聚焦激光扫描显微镜,到生理学的脑内微透析术、脑片、微电泳及行为学方法;从电生理的电压钳、膜片和脑电波,到生物化学的层析法、放射免疫法、免疫印迹法等;从种类繁多的分子生物学方法到各种脑成像技术。每种新方法的出现都打开了一扇门,引入一个新领域。实践证明,人脑即使不能彻底了解人脑的奥秘,也可无限地逼近。     

From molecular to molar: a paradigm shift in behavior analysis

A paradigm clash is occurring within behavior analysis. In the older paradigm, the molecular view, behavior consists of momentary or discrete responses that constitute instances of classes. Variation in response rate reflects variation in the strength or probability of the response class. The newer paradigm, the molar view, sees behavior as composed of activities that take up varying amounts of time. Whereas the molecular view takes response rate and choice to be "derived" measures and hence abstractions, the molar view takes response rate and choice to be concrete temporally extended behavioral allocations and regards momentary "responses" as abstractions. Research findings that point to variation in tempo, asymmetry in concurrent performance, and paradoxical resistance to change are readily interpretable when seen in the light of reinforcement and stimulus control of extended behavioral allocations or activities. Seen in the light of the ontological distinction between classes and individuals, extended behavioral allocations, like species in evolutionary taxonomy, constitute individuals, entities that change without changing their identity. Seeing allocations as individuals implies that less extended activities constitute parts of larger wholes rather than instances of classes. Both laboratory research and everyday behavior are explained plausibly in the light of concrete extended activities and their nesting. The molecular- view, because it requires discrete responses and contiguous events, relies on hypothetical stimuli and consequences to account for the same phenomena. One may prefer the molar view on grounds of elegance, integrative power, and plausibility.     

‘I still have difficulties feeling like a mother’: The transition to motherhood of preterm infants mothers

Objective: The premature birth of their infant can constitute a sudden interruption of the transition to motherhood that requires a reorganisation of the process. The present study aimed to analyse the experience of the transition to motherhood of preterm infants’ mothers, framing it within Stern’s transition to motherhood theory.

Method: A semi-structured interview was administered to 30 mothers during the recovery of the infant in the Neonatal Intensive Care Unit. The interview explored the experience of mothers related to pregnancy, the infant’s birth and recovery.

Results: Thematic Analyses evidenced four interrelated themes: disconnection from the child, perception of maternal inadequacy, loss of parental role and temporal suspension. The themes showed that the mothers’ experience of preterm birth not only concerns the traumatic delivery, but is also embedded in the entire process of becoming a mother within an institutional context.

Conclusions: Results were connected to Stern’s theory. Findings revealed difficulties for preterm mothers that could affect the development of the maternal constellation and thus their transition to motherhood. These difficulties may influence the construction of maternal identity, mother’s representation of their child and the bond with their child.     

Behavioral control by the response–reinforcer correlation

Using a discrete‐trials procedure, two experiments examined the effects of response–reinforcer correlations on responding while controlling molecular variables that operated at the moment of reinforcer delivery (e.g., response–reinforcer temporal contiguity, interresponse times preceding reinforcement). Each trial consisted of three successive components: Response, Timeout, and Reinforcement, with the duration of each component held constant. The correlation between the number of responses in the Response component and reinforcer deliveries in the Reinforcement component was varied. In the Positive‐correlation condition, a larger number of responses in the Response component programmed a higher reinforcement rate (Experiment 1) or a shorter time to reinforcement (Experiment 2) in the Reinforcement component. Although programmed in this way, the actual reinforcer delivery was dependent on, and occurred immediately after, a response in the Reinforcement component. In the Zero‐correlation condition, the programmed rates of reinforcement (Experiment 1) or the times to reinforcement (Experiment 2) in the Reinforcement component of each trial were yoked to those in the preceding Positive‐correlation condition. Responding in the Response component was higher in the Positive‐ than in the Zero‐correlation condition, without systematic changes in molecular variables. The results suggest that the response–reinforcer correlation can be a controlling variable of behavior.     

认知加工速度研究中常用的实验和统计方法

认知加工速度理论是解释年龄与认知老年化现象的理论之一,也是近年来心理学研究中的热点之一.该文从理论要点、实验设计、指标选择和统计分析手段四个方面对认知加工速度的研究进行了回顾.在阐述理论要点的基础上,介绍了常用的实验指标和选择指标的标准,以及一些常用的统计分析手段.作者认为除了深入理解理论之外,谨慎地设计实验方案、选择适当的实验指标,以及采用恰当的统计手段都是研究得以顺利进行的必要保障.     

Evaluation of a Spanish version of the Buss and Perry aggression questionnaire: Some personal and situational factors related to the aggression scores of young subjects

The psychometric properties of a Spanish translation of the Buss and Perry aggression questionnaire adapted for pre-adolescents and adolescents have been studied. A maximum-likelihood confirmatory factor analysis corroborates Buss and Perry’s four-factor structure. The internal consistency of each factor and of the total score has proved to be satisfactory. The four factors are more closely interrelated in pre-adolescents than in adolescents.A second aim of this work has been to further our understanding of the possible relationship between aggression scores and certain outside-school activities of the subjects studied. Two thousand two hundred and eight students filled in the questionnaire together with a self-report concerning their habits. The results show that the aggression scores rise concomitantly with time spent watching television and playing video games and decrease the greater the time devoted to extra-curricular reading or moderate amounts of homework. Statistically significant differences relating to age and gender were also found.     

A cross-syndrome study of the development of holistic face recognition in children with autism, Down syndrome, and Williams syndrome

We report a cross-syndrome comparison of the development of holistic processing in face recognition in school-aged children with developmental disorders: autism, Down syndrome, and Williams syndrome. The autism group was split into two groups: one with high-functioning children and one with low-functioning children. The latter group has rarely been studied in this context. The four disorder groups were compared with typically developing children. Cross-sectional trajectory analyses were used to compare development in a modified version of Tanaka and Farah’s part–whole task. Trajectories were constructed linking part–whole performance either to chronological age or to several measures of mental age (receptive vocabulary, visuospatial construction, and the Benton Facial Recognition Test). In addition to variable delays in onset and rate of development, we found an atypical profile in all disorder groups. These profiles were atypical in different ways, indicating multiple pathways to, and variable outcomes in, the development of face recognition. We discuss the implications for theories of face recognition in both atypical and typical development, including the idea that part–whole and rotation manipulations may tap different aspects of holistic and/or configural processing.     

Does quality of sleep mediate the effect of depression on hopelessness?

The objectives of the study were to evaluate the relationship between sleep quality, depression, and hopelessness in advanced cancer patients and whether sleep quality mediated the effect of depression on hopelessness. The final sample consisted of 102 advanced cancer patients under palliative treatment. Patients completed the Greek Pittsburgh Sleep Quality Index, a sleep quality instrument, the Greek Beck Depression Inventory for measuring depression, and finally the Beck Hopelessness Scale. Patients' performance status was assessed by their overall physical functioning, as defined by the Eastern Cooperative Oncology Group. Depression was highly associated with hopelessness (r = .52, p<.001). Statistically significant associations were found between sleep quality with hopelessness (r = .37, p<.001), as well as with depression (r = .36, p<.001). Mediation analyses indicated that depression influenced hopelessness directly as well as indirectly by its effect on sleep quality. About 14.58% of the variation in hopelessness was explained by depression; 4% of the variance in hopelessness explained by depression was accounted for by the mediation pathway indicating that sleep quality mediated the relationship between depression and hopelessness. Similarly, in the reverse mediation analysis, depression mediated the relationship between sleep quality and hopelessness; 43% of the variation in hopelessness was explained by sleep quality. In conclusion, some of the effect of depression on hopelessness was mediated by sleep quality, but depression had a direct effect on hopelessness as well. Additionally, some of the effect of sleep quality on hopelessness was mediated by depression. The current findings are important because improving sleep quality by treating depression may contribute to decreased hopelessness scores and vice versa: Treating depression by improving sleep quality may also contribute to lower hopelessness scores.     

Empirical test of bullies' status goals: assessing direct goals, aggression, and prestige

The literature suggests that status goals are one of the driving motivations behind bullying behavior, yet this conjecture has rarely if ever been examined empirically. This study assessed status goals in three ways, using dyadic network analysis to analyze the relations and goals among 10-11 and 14-15 year olds in 22 school classes (N boys=225; N girls=277). As a validation bullies were contrasted with victims. Bullies had direct status goals (measured with the Interpersonal Goal Inventory for Children) and showed dominance as measured with proactive aggression. Moreover, as predicted from a goal perspective, bullying behavior was related to prestige in terms of perceived popularity. In contrast, victims lacked status goals, were only reactively aggressive, and low on prestige. That being popular is not the same as being liked could be shown by the fact that bullies were just as rejected as victims by their classmates. Eighth-grade bullies had more direct status goals than fourth-grade bullies, possibly indicating that striving for the popularity component of status increases in early adolescence.