The placebo puzzle: putting together the pieces.

This article outlines and assesses the main theories of the placebo effect and suggests how they might sit together in a larger model of placebo etiology. Among the approaches considered are expectancy theory, emotional change theory, classical conditioning, and the biological approach. Although these are sometimes assumed to be competing models, in many cases they shed light on different pans of the placebo puzzle. Expectancies are the core of most placebo effects in human beings. The effects of expectancies are sometimes unmediated but in other cases are mediated by changes in emotional state, immune system function, perception, or behavior. Although expectancies are implicated in most placebo effects, a small number of placebo effects may be solely attributable to nonconscious contingency learning.     

Academic performance,prejudice, and the jigsaw classroom: new pieces to the puzzle

This field study investigated the effects of a cooperative learning environment and a Jigsaw classroom environment on academic performance, self-esteem, liking of school, liking of peers, and racial prejudice. The subjects were 103 children in Grades 4–6, in two separate schools. The cooperative learning condition was used as a baseline measure of the effects of cooperation, against which the effects of a Jigsaw method, involving both cooperation and interdependence, were compared. The results reveal that Jigsaw produced significant improvements on measures of academic performance, liking of peers, and racial prejudice. In contrast, the effect of the cooperative condition was to exacerbate pre-existing intergroup tensions. The present findings demonstrate that the Jigsaw method can be applied successfully in Australian conditions, and lend support to Allport's contact hypothesis. © 1998 John Wiley & Sons, Ltd.     

Trying to understand the different pieces of the construct validity puzzle of assessment centers: an examination of assessor and assessee effects

This study examined the effects of assessor-related factors (i.e., type of assessor) and assessee-related factors (i.e., type of assessee profile) on the construct validity of assessment center ratings. In particular, 3 types of assessors (26 industrial/organizational [I/O] psychologists, 20 managers, and 27 students), rated assessee performances that varied according to cross-exercise consistency (i.e., relatively inconsistent vs. relatively consistent) and dimension differentiation (relatively undifferentiated vs. relatively differentiated). Construct validity evidence was established for only one assessee profile and only in the I/O psychologist and managerial samples. More generally, these results indicate that 3 factors (poor design, assessor unreliability, and especially cross-situational inconsistent assessee performances) may explain why construct validity evidence is often not established in operational assessment centers.     

The Flynn effect puzzle: A 30-year examination from the right tail of the ability distribution provides some missing pieces

The Flynn effect is the rise in IQ scores across the last eighty or more years documented in the general distribution of both industrialized and developing nations primarily on tests that require problem solving and non-verbal reasoning. However, whether the effect extends to the right tail (i.e., the top 5% of ability) remains unknown. The present study uses roughly 1.7 million scores of 7th-grade students on the SAT and ACT as well as scores of 5th- and 6th-grade students on the EXPLORE from 1981 to 2010 to investigate whether the effect operates in the right tail. The effect was found in the top 5% at a rate similar to the general distribution, providing evidence for the first time that the entire curve is likely increasing at a constant rate. The effect was also found for females as well as males, appears to still be continuing, is primarily concentrated on the mathematics subtests of the SAT, ACT, and EXPLORE, and operates similarly for both 5th and 6th as well as 7th graders in the right tail. These findings help clarify the nature of the effect and may suggest ways that potential causes can now be more meaningfully offered and evaluated.     

From end time to the time of the end: some reflections about the emergence of subjectivity

Abstract :  In this article, the author presents the first ten years of the analysis of a young patient who just barely escaped an onset of schizophrenia. The patient showed defences of the self that had been frozen with regard to his relationship to time, and had shut him outside of any rapport with time, forcing him to seek—as desperately as unconsciously—a 'time of the end', a present time.
He explores different 'lived times': circular and linear times that are both classical in Jungian theory; he then describes what he calls subjective linear 'lived time' as a modality for opening up instinctual objectivity to subjectivity's access to the symbolic. In his theorization of this passage, he uses the Greek notion of Kairos as well as the French psychoanalyst Jean Laplanche's theory of originary seduction.
Finally, he ties this transition to recent theories in physics of complex systems, also called chaos theory, and poses the hypothesis that this model can represent two essential qualities of subjectivity: its non-predictability and its non-reproductability.     

Immigration: going home or going to pieces

Immigration may constitute a family crisis. Because of its lengthy duration, this crisis may be an unrecognized factor in the problem which brings patients into therapy. The immigration crisis may bring an individual into renewed contact with past unresolved emotional issues. It also affects the structure, hierarchies, and values of the family as a system. The therapist who relates only to presenting symptoms and ignores the context of the immigration crisis may lose credibility with patients and miss important therapeutic opportunities. Case studies are given to illustrate the statement.     

Libet's research on the timing of conscious intention to act: a commentary

S. Pockett (Consciousness and Cognition, this issue) and G. Gomes (Consciousness and Cognition, this issue) discuss a possible bias in the method by which Libet's subjects estimated the time at which they became aware of their intent to move their hands. The bias, caused by sensory delay processing the clock information, would be sufficient to alter Trevena and Miller's (Consciousness and Cognition, this issue) conclusions regarding the timing of the lateralized readiness potential. I show that the flash-lag effect would compensate for that bias. In the last part of my commentary I note that the other target articles do not examine the most interesting aspect of Libet's unfashionable views on free will. I point out that Libet's views are less strange than they at first appear to be.     

Tradition and originality in the transference: a Coleridgean commentary

Abstract :  Some of S.T. Coleridge's observations about ' the mind's self-experience of itself ' and the nature of faith and trust are discussed in relation to the implicit tensions between 'tradition' (formal structure, received wisdom) and 'originality' (creativity, individuation), especially in the transference. The existential doubts of some analysands may undermine their confidence that their integrity will be fostered by the analytic relationship: so instead the trappings of 'tradition' (e.g. in the case of a trainee the assumption of a professionally endorsed status) may be appropriated as a spurious substitute for 'originality'.
It is argued that an anticipatory 'faith', albeit initially rather cerebral, may be necessary to sustain the analytic endeavour until a more intimate, heartfelt 'trust' can release the potential for individuation. Further consideration is given to the 'analytic attitude' that might best facilitate this process, and to how sensitivity to these dynamics may inform one's reading of the transference.     

Compliant in a moment: a commentary on nevin

Nevin's scholarly and timely discussion attempts to maintain the precarious union of the experimentally derived theory of behavioral momentum with applications of the behavioral momentum construct to human subjects in applied settings. Nevin's discussion adds much-needed clarification to a process that at times has proven to be awkward for applied researchers. In this commentary, we will address three general questions: (a) Can the applications of behavioral momentum be derived from the theory as conceptualized by Nevin? (b) Could those applications have been developed had the theory not been formulated? (c) Does behavioral momentum theory add significantly to the compliance literature?     

脑的四个功能系统学说

本文根据实验事实 ,讨论脑内评估 -情绪的功能系统。在此基础上 ,发展鲁利亚的脑的三个功能系统学说 ,提出脑的四个功能系统学说 ,认为脑内存在包括评估 -情绪功能系统在内的四个互相紧密联系的功能系统 ,人的各种行为和心理活动是这四个功能系统相互作用和协同活动的结果     

Beyond surprise: the puzzle of infants' expressive reactions to expectancy violation

The reactions of 58 infants to expectancy violation by digitally filtering the experimenter's voice were studied in a cross-sectional design for ages 5, 7, 9, 11-12, and 14 months. The results show that behavioral freezing and changes in gaze direction, but not facial or vocal expression, are reliable responses to expectancy violation. The pattern suggests that a transition in the infant's capacity for cognitive evaluation of novel and discrepant events may occur around age 9 months. These findings confirm the consistent failure to find prototypical facial surprise reactions in research on novel or impossible situations. Componential theories of emotion, which predict adaptive behavior patterns from appraisal processes, may provide clues for underlying mechanisms and generate hypotheses on age-related changes in emotional expression.     

Adding to the Mix: Integrating ELSI into a National Nanoscale Science and Technology Center

This paper describes issues associated with integrating the study of Ethical, Legal and Social Issues (ELSI) into ongoing scientific and technical research and describes an approach adopted by the authors for their own work with the center for nanophase materials sciences (CNMS) at the Oak Ridge national laboratory (ORNL). Four key questions are considered: (a) What is ELSI and how should it identify and address topics of interest for the CNMS? (b) What advantages accrue to incorporating ELSI into the CNMS? (c) How should the integration of ELSI into the CNMS take place? (d) How should one judge the effectiveness of the activity? We conclude that ELSI research is not a monolithic body of knowledge, but should be adapted to the question at hand. Our approach focuses on junctures in the R&;D continuum at which key decisions occur, avoids topics of a purely ethical nature or advocacy, and seeks to gather data in ways that permit testing the validity of generalization. Integrating ELSI into the CNMS allows dealing with topics firmly grounded in science, offers concrete examples of potential downstream applications and provides access to the scientists using the CNMS and their insights and observations. As well, integration provides the opportunity for R&;D managers to benefit from ELSI insights and the potential to modify R&;D agendas. Successful integration is dependent on the particular ELSI question set that drives the project. In this case questions sought to identify key choices, information of value to scientists, institutional attributes, key attributes of the CNMS culture, and alternatives for communicating results. The opportunity to consult with scientists on ELSI implications is offered, but not promoted. Finally, ELSI effectiveness is judged by observing the use to which research products are put within the CNMS, ORNL, and the community of external scholars.