Measuring clustering differences among categories in the same list

A method is presented for analysis of clustering differences among categories in the same list. This allows category characteristics to be varied within Ss by using mixed lists, whereas previously only homogeneous lists could be employed.     

Symptoms of Psychological Distress Among Mothers and their Adult Offspring: A Longitudinal Examination

We examined the association between maternal psychological distress during offspring’s early development and offspring’s later distress in adulthood, as well as the influence of maternal characteristics at offspring’s birth and offspring’s characteristics in adulthood on distress. Data were obtained from the British Cohort Study, a longitudinal study of children born in a one-week period in 1970. Children were followed up multiple times from birth through to age 30. Results indicate that greater symptoms of maternal psychological distress during offspring’s early childhood are associated with greater symptoms of distress in adult offspring. A large component of this association is indirect, occurring through mother’s distress in later childhood and offspring’s problem behavior during adolescence. Findings that the association between maternal and offspring’s distress is more indirect than direct support arguments that early maternal distress has long-term consequences for offspring.     

Presentation modality affects false memory

Roediger and McDermott (1995) rejuvenated interest in Deese’s (1959) paradigm for producing reliable intrusions and false alarms. Using this paradigm in three experiments, we demonstrated that visual study presentation dramatically reduces the rate of false memories. Only auditory study presentation resulted in equal production of studied and critical items. Correct recall and recognition were unaffected. The suggestion that visual presentation provides a means for discriminating between false and true memories was supported by Experiment 3: Pleasantness rating of study items significantly reduced the creation of false memories regardless of modality.     

Lessons Learned from the Parents Matter! Program

We present a discussion of some of the lessons the investigators learned during the development and implementation phases of the Parents Matter! Program (PMP). Lessons were learned that are relevant to various groups involved in large scale, multi-site, community-based intervention studies: investigators, community leaders, community members, project staff, and participants. Specific lessons learned include: (1) forge collaboration early: (2) maintain communication; (3) clearly delineate policies and procedures; and (4) develop proactive strategies. We also include a list of important questions to consider when contemplating similar projects.     

Diferencias individuales en cognición: una nueva aproximación a la inteligencia

RESUMEN

El hecho de las diferencias individuales en el funcionamiento mental es una realidad. Su amplitud y naturaleza tiene unas consecuencias tan importantes en nuestra cultura que hace que la sociedad demande una forma de medir la inteligencia. No obstante algunos psicólogos opinan que los tests de inteligencia son un instrumento de medida que no representa adecuadamente un modelo formal de la dinámica de los procesos de pensamiento. Este artículo consiste en una serie de argumentos teóricos y empíricos contra la separación de los tests y las teorías cognitivas. Se piensa, en este artículo, que se pueden producir substanciales beneficios del acercamiento entre el psicólogo experimental y el psicómetra; los datos disponibles indican cómo se puede producir este acercamiento.     

Evil and theistic minimalism

International Journal for Philosophy of Religion -     

Financial and Ethical Considerations for Professionals in Psychology

The profession of psychology is one of many entities affected by the current economic recession. The question of what to do when clients cannot pay agreed-upon charges will need to be answered. Ethical issues related to setting the fee for psychotherapy, insurance coverage, abandonment, pro bono psychotherapy, and lack of resources are addressed in light of the 2002 American Psychological Association's Ethical Principles of Psychologists and Code of Conduct and other relevant literature. The impact of the Mental Health Parity Act on the financial complexities that professionals in psychology now face is also discussed. Several recommendations are made for psychologists, calling them to be proactive in their communities, to be advocates for their clients, and to critically evaluate their financial practices.     

The effects of binge MDMA on acquisition and reversal learning in a radial-arm maze task

The current study used the partially-baited radial-arm maze paradigm to study the effects of a single-treatment high-dose exposure ('binge') to MDMA (± 3,4-methylenedioxymethaphemtamine or 'Ecstasy') on memory task acquisition. Sprague-Dawley rats were administered a binge dose (4 × 10 mg/kg) of MDMA and their ability to subsequently acquire the radial-arm maze task was compared against saline controls. The MDMA-treated rats were significantly slower to learn the task and made more reference memory errors than the controls. Working memory function was found to be relatively unimpaired. Following a reversal of task rules the MDMA-treated rats were again significantly slower to acquire the appropriate rule despite having eventually achieved a similar level of overall performance as control rats. However evidence of drug tolerance was found when all rats were challenged with an acute low dose of MDMA (1 × 4.0 mg/kg) because the binge MDMA rats were relatively less impaired. Therefore, although binge treated MDMA rats were able to achieve very accurate performance equivalent to the controls they took significantly longer to do this and were less able to adapt their behavior to a change in task rules. In addition the binge treated MDMA rats displayed tolerance to acute MDMA exposure. These findings are consistent with the possibility that human Ecstasy users may show deficits in acquiring information and may experience deficits in cognitive flexibility as well as developing tolerance to the drug with repeated exposure.