Smokers discount their drug of abuse in the same way as other consumable rewards

Recent research shows that drug abusers discount delayed monetary rewards more than nonabusers do, and they discount delayed substances of abuse (e.g., drugs) more than delayed money. Furthermore, non-drug-abusers discount food and substances of abuse (e.g., alcohol), more than money. Here, we compare the delay and probability discounting of money with that of a directly consumable reward (chocolate) and with that of a substance of abuse (cigarettes), in a drug-using population (smokers). In line with previous research, we found in two experiments that delay discounting differentiated between smokers and nonsmokers, and between money and a nonabused directly consumable reward (chocolate). In addition, our results show that there appears to be no difference in the extent to which smokers discount their abused substance compared to another directly consumable reward. These findings support the contention that drugs and food are part of the same category of primary reinforcers, whereas money is discounted differently, as a conditioned reinforcer.     

Reducing depression in 9–10 year old children in low SES schools: A longitudinal universal randomized controlled trial

The Aussie Optimism: Positive Thinking Skills Program (AOP-PTS) is an innovative curriculum-based mental health promotion program based on cognitive and behavioural strategies. The program is aimed at preventing depressive and anxiety symptoms and disorders in middle primary school children aged 9–10 years. Students from 22 low SES primary schools (N = 910) were randomly assigned to an intervention or a control group and assessed at baseline, post-test, 6 months and 18 months. The intervention group received the program implemented by teachers and the control group received their regular Health Education curriculum. Students completed questionnaires on depression, anxiety, and attribution style. At risk students were further assessed with the computerised Diagnostic Interview for Children and Adolescents. Parents reported on their children's externalising and internalising problems at home. Children in the intervention condition reported a significant pre-post reduction in depressive symptoms, and there was a significant pre-post reduction in parent-reported emotional difficulties which was maintained at 6 month follow-up; no changes were evident in the control group. Both groups showed significant improvements in child-reported anxiety and attribution style, and significant improvements in parent-reported pro-social behaviours. For both groups, there were no significant post-baseline changes in incidence and recovery rates for depression, anxiety, or internalising symptoms. These findings suggest that AOP-PTS has the potential to treat depressive symptomatology in the immediate term but the effects were not sustained. There is also evidence of improved emotional resilience up to 6 months following the program. Further follow-up to investigate longer term effects is needed.     

The roles of hopeful thinking in preventing problems and enhancing strengths

From its most famous tale, that of Pandora, hope was meant to prevent the emergence and reemergence of life difficulties. A new model defining hope as a combination of agentic pathways and goal-directed thinking is reviewed. Comparisons of the similarities of this theory to other existing theories are made. The beneficial roles of hope in primary (before the appearance of a problem) and secondary (after a problem has appeared) prevention are explored. Primary enhancement is introduced as involving those thoughts and actions that establish optimal functioning and satisfaction. Secondary enhancement is posited to describe those thoughts and actions that are undertaken over time so as to further functioning and satisfaction in order to reach peak levels. Using hope theory as a lens, these primary and secondary enhancement processes are described. The natural synergy between prevention and enhancement activities is discussed, along with the future priorities for using hope in prevention and enhancement efforts.     

The counsellor and the GP: The gulf and the isthmus - or the dilemmas of difference

Research supervision in the field of counselling and psychotherapy is a fruitful area for investigation in view of the fact that the research supervisory relationship is powerful and highly charged, whether consciously acknowledged or not. Researchers trained as counsellors and psychotherapists possess the skills to facilitate the emergence of, and work creatively with, impasses and crises, both in the research itself and the supervisory relationship, as a result of their training and experience in dealing with crisis and catharsis in clinical work. This paper will demonstrate these points using a case vignette from my work as a supervisor of research dissertations undertaken by students on a Masters in Therapeutic Counselling course. Drawing on narrative analysis, clinical supervision theory and discursive analysis it will look at the strengths and weaknesses of a ‘psychotherapeutic’ approach to research supervision.     

The relationship between existential-phenomenological and cognitive-behaviour therapies

The tendency of GPs to cap the number of counselling sessions offered to their patients in primary care has led to an ongoing debate about the effectiveness of time-limited counselling and brief therapy models. the advantages and disadvantages of brief as opposed to open-ended models of counselling in primary care need to be considered from the point of view of the client, the counsellor and the GP. Given that outcome research shows no difference between the two methods, a cost-benefit analysis would indicate that, for the majority of cases, time-limited counselling works very well. But there is still a minority of clients who do need open-ended therapy, and their needs are not being served by the present NHS system. Counsellors should therefore not be debating for either brief or open-ended style in primary care, but should be organizing themselves into expanding the service to give GPs the choice of both approaches.     

小学教育专业大学生总体幸福感与应对方式的关系研究

目的探讨大学生应对方式与主观幸福感的关系。方法用《总体幸福感量表》和《简易应对方式问卷》对小学教育专业大学生进行问卷调查,并用spss17.0进行数据整理和相关分析。结果积极应对与总体幸福感的3个维度存在显著性差异(p<0.05);消极应对与总体幸福感的4个维度存在显著性差异(p<0.05),应对方式对幸福感的回归效应显著。结论应对方式是影响大学生幸福感的重要心理因素。     

Choice between single and multiple delayed reinforcers.

Pigeons chose between alternatives that differed in the number of reinforcers and in the delay to each reinforcer. A peck on a red key produced the same consequences on every trial within a condition, but between conditions the number of reinforcers varied from one to three and the reinforcer delays varied between 5 s and 30 s. A peck on a green key produced a delay of adjustable duration and then a single reinforcer. The green-key delay was increased or decreased many times per session, depending on a subject's previous choices, which permitted estimation of an indifference point, or a delay at which a subject chose each alternative about equally often. The indifference points decreased systematically with more red-key reinforcers and with shorter red-key delays. The results did not support the suggestion of Moore (1979) that multiple delayed reinforcers have no effect on preference unless they are closely grouped. The results were well described in quantitative detail by a simple model stating that each of a series of reinforcers increases preference, but that a reinforcer's effect is inversely related to its delay. The success of this model, which considers only delay of reinforcement, suggested that the overall rate of reinforcement for each alternative had no effect on choice between those alternatives.     

Effects on preference of reinforcement delay, number of reinforcers, and terminal-link duration

Three experiments used concurrent-chains procedures to examine the effects of reinforcement delay, number of reinforcers, and terminal-link duration on preference. In Condition 30 of Experiment 1, food was delivered after 30 seconds in each 150-second terminal link, with four additional food deliveries occurring at 30-second intervals in one of the links. In Condition 5, food was delivered after 5 seconds in each 25-second terminal link, and the four additional reinforcers were delivered at 5-second intervals. Preferences for the multiple-food chain were greater in Condition 30. In Experiment 2, the terminal link(s) providing only one reinforcer terminated immediately after delivery of the reinforcer. Preferences for the multiple-food chain were smaller than in Experiment 1. In Condition 5 of Experiment 3, food was delivered after 5, 75, 100, 125, and 150 seconds in one 150-second link and after 5 seconds in the other. Condition 50 differed only in that the first (or only) reinforcer in each link was delivered after 50 seconds instead of after 5 seconds. Preferences for the multiple-food chain were greater in Condition 50. Results of Experiments 1 and 2 do not correspond to results obtained by Moore (1979).     

Behavioral contrast in rats with different reinforcers and different response topographies

Experiment I demonstrated positive behavioral contrast in rats when one of two qualitatively different reinforcers (milk and pellets) was removed from a component of a multiple schedule. The contrast effect was larger and more enduring when milk was removed. Experiment II showed that the rats spent more time on the side of a shuttle-box on which milk was freely available than on the side on which pellets were freely available. Experiment III, a partial replication of Experiment I, failed to demonstrate the contrast effect of Experiment I. Experiment IV demonstrated contrast when two topographically distinct responses, nose-key poking and lever pressing, were required in different components of a multiple schedule. These results extend the conditions that generate behavioral contrast in rats.