The Temporal Dynamics of Cooperation

Parties in real-world conflicts often attempt to punish each other's behavior. If this strategy fails to produce mutual cooperation, they may increase punishment magnitude. The present experiment investigated whether delay-reduction - potentially less harmful than magnitude increase - would generate mutual cooperation as interactions are repeated. Participants played a prisoner's dilemma game against a computer that played a tit-for-tat strategy, cooperating after a participant cooperated, defecting after a participant defected. For half of the participants, the delay between their choice and the computer's next choice was long relative to the delay between the computer's choice and their next choice. For the other half, long and short delays were reversed. The tit-for-tat contingency reinforces the other player's cooperation (by cooperating) and punishes the other player's defection (by defecting). Both rewards and punishers are discounted by delay. Consistent with delay discounting, participants cooperated more when the delay between their choice and the computer's cooperation (reward) or defection (punishment) was relatively short. These results suggest that, in real-world tit-for-tat conflicts, decreasing delay of reciprocation or retaliation may foster mutual cooperation as effectively as (or more effectively than) the more usual tactic of increasing magnitude of reciprocation or retaliation.     

简述《古兰经》诵读学的形成、发展与传播

《古兰经》是伊斯兰教最重要、最根本的神圣经典,是穆斯林的经典。自从被搜集成册以后,《古兰经》对穆斯林的生活产生了深远的影响。历代经师们对《古兰经》的传播做出了重要贡献,他们传承并发展了各种读法,使之成为一门新学科——诵读学,并为后世留下了不少扛鼎之作。本文旨在对这一学科在穆斯林世界的形成、发展和传播以及在我国的大概情况做一简单回顾。     

免费师范生职业认同感与生命意义的关系

该研究采用师范生职业认同感量表和生命态度剖面图(LAP)中的"生命意义的追寻与肯定"分量表,对258名一至三年级的免费师范生进行问卷调查,探讨免费师范生职业认同感与生命意义的关系。结果表明,免费师范生职业认同感及其各因子均与生命意义及其各因子呈显著正相关;高中低不同职业认同感组的生命意义及其各因子的组别效应显著;免费师范生职业认同感的职业效能、职业意愿与期望、职业价值三因子是生命意义的显著预测变量。     

L’accompagnement à la recherche d’un emploi : enjeux,modèles,et perspectives de recherche

What is at stake in the process of elaborating support to provide job seekers with personal advice, both theoretically and practically speaking? All through a review of papers, this article focuses on different theoretical schemes in the process of helping jobseekers to get back to work, but it also details the currently existing support devices and analyses their effects. Eventually it concentrates on the main psychological features taken into account in the process of counseling. As a conclusion, this article examines the perspectives and the consequences of molding and shaping personal counseling for jobseekers from a research angle.     

Effects of guided imagery with relaxation training on anxiety and quality of life among patients with inflammatory bowel disease

Background: Inflammatory Bowel Disease (IBD) impacts quality of life (QoL). Psychological factors influence the course of the disease and should be targeted for intervention.

Methods: Our study was a prospective, randomised control trial. Fifty-six outpatients were randomly chosen and allocated to a treatment group or a waiting-list control group. Treatment group patients attended three relaxation-training sessions and received an audio disc for home practice. Evaluations performed pre and post-treatment: state anxiety was assessed with the State-Trait Anxiety Inventory, QoL with the IBD Questionnaire. The Visual Analogue Scale assessed pain, depression, stress and mood. Patients completed a symptom monitoring diary. The control group's symptoms were monitored without study-related treatment.

Results: Thirty-nine subjects completed the study and were included in the data analysis. Following the relaxation-training intervention, the treatment group's (n?=?18) measured results showed a statistically significant improvement as compared to the control group (n?=?21) (time by treatment interaction): anxiety levels decreased (p?<?0.01), QoL and mood improved (p?<?0.05), while levels of pain and stress decreased (p?<?0.01).

Conclusions: Findings indicate IBD patients may benefit from relaxation training in their holistic care. New studies as well as further investigation of the subject are warranted.     

Dimensions of Operational Stress and Forms of Unacceptable Risk-Taking With Small Arms

This research studied the association between dimensions of operational stress, forms of risk-taking with small arms, and possible mediators. Operational threat and negative affect were predictors, unauthorized preparedness and risky games were dependent variables, and safety climate and personality profile from the Eysenck Personality Questionnaire—Revised Short Form were mediators. The participants were 461 compulsory service soldiers in 31 companies. The results revealed that operational threat is related to unauthorized preparedness, and positive–negative affect is related to risky games. Safety climate mediated risky games only. Unauthorized preparedness and risky games were influenced by the interaction of Psychoticism and the Lie scale from the Eysenck Personality Questionnaire—Revised Short Form.     

Intrinsic factor controlling the deformation and ductile-to-brittle transition of metallic glasses

The energetic driving force and resistance for shearing and cracking in metallic glasses (MGs) are quantitatively evaluated. A universal thermodynamic criterion is proposed for better understanding the intrinsic correlations between fracture toughness and Poisson’s ratio, the competitions between various deformation modes and the ductile-to-brittle transition in MGs and other materials. A new cooperation parameter δ is also introduced to depict quantitatively the relative propensity of shearing versus cracking. This work could provide insights into the long-standing issues of deformation mechanisms of glassy materials, and be helpful in searching for ductile and tough MGs.     

Rushton’s contributions to the study of mental ability

This essay describes Rushton’s contribution to examining the nexus of intelligence, race, and genetics, specifically what I termed “Spearman’s hypothesis”. It states that Black–White differences are “most marked in just those [tests] which are known to be saturated with g”. I (Jensen) had confirmed this hypothesis using large data sets in the 1970s and 1980s and also found that Black–White differences were most marked on the more heritable rather than the more cultural subtests. Rushton confirmed and extended these findings in many highly innovative ways and demonstrated Spearman’s hypothesis applied among samples of Gypsy Roma in Serbia, and East Asian, European, South Asian, Colored and Black samples in South Africa. He has not only documented group differences in brain size, intelligence, life span, family structure, infant mortality, developmental precocity, personality, and temperament, and rates of two egg twinning, and crime among East Asians, Europeans, and Africans, but also provided a life history theory that explains them.     

Patrón de Conducta Tipo A y antecedentes familiares de hipertensión: un estudio psicofisiológico

Resumen

En este estudio se evaluaron los efectos del Patrón de Conducta Tipo A y los antecedentes familiares de hipertensión en diversos parámetros cardiovasculares, conductuales y subjetivos de la respuesta de estrés.

Con este fin, 100 sujetos (50 varones y 50 mujeres) participaron en tareas de esfuerzo mental con control vs. no control. Las diferencias entre sujetos A y B se manifestaron en una mayor amplitud del pulso en los primeros. La mayor reactividad en Tasa Cardiaca se observó entre los sujetos con antecedentes familiares de hipertensión, mientras que la presión sanguínea sistólica se vio condicionada por la interacción de dichos antecedentes con el Patrón de Conducta Tipo A. Finalmente, los componentes cardiovasculares, subjetivos y conductuales de la respuesta de estrés confirmaron la motivación por el control de dichos sujetos descrita en la literatura.     

Desensibilización sistemática,inoculación de estrés y terapia inespecífica en el tratamiento de la ansiedad a las matemáticas

RESUMEN

Las autoras comienzan ofreciendo una panorámica general de las investigaciones sobre el síndrome de fobia a las matemáticas y la ansiedad ante los exámenes, explicando a continuación que el objetivo general de su estudio es desarrollar procedimientos de modificación de conducta que ayuden a estudiantes de Psicología, con una historia previa de conductas de evitación a los exámenes, a enfrentarse a las pruebas de psicología matemática. Más específicamente, se quiere comparar la eficacia de la Desensibilización Sistemática tradicional con un paquete cognitivo complejo desarrollada por ellas siguiendo el modelo de Inoculación de Estrés, y el valor de estas dos intervenciones específicas se compara, a su vez, con un grupo de terapia no orientado al problema. Tras describir el método y resultados, las autoras destacan en la discusión la eficacia de las tres intervenciones y el hecho de que se lograse afectar al rendimiento y no sólo a la ansiedad en matemáticas. Finalmente afirman que sus resultados apoyan la actualidad de la obra de Frank (1973, 1982), quien señala que una parte muy importante de los efectos psicoterapéuticos se debe a factores comunes a todas las terapias, en los que habitualmente no recae el peso explicativo.