Temporal associations and prior-list intrusions in free recall

When asked to recall the words from a just-presented target list, subjects occasionally recall words that were not on the list. These intrusions either appeared on earlier lists (prior-list intrusions, or PLIs) or had not appeared over the course of the experiment (extra-list intrusions). The authors examined the factors that elicit PLIs in free recall. A reanalysis of earlier studies revealed that PLIs tend to come from semantic associates as well as from recently studied lists, with the rate of PLIs decreasing sharply with list recency. The authors report 3 new experiments in which some items in a given list also appeared on earlier lists. Although repetition enhanced recall of list items, subjects were significantly more likely to make PLIs following the recall of repeated items, suggesting that temporal associations formed in earlier lists can induce recall errors. The authors interpret this finding as evidence for the interacting roles of associative and contextual retrieval processes in recall. Although contextual information helps to focus recall on words in the target list, it does not form an impermeable boundary between current- and prior-list experiences.     

Two effects of repetition: Support for a dual-process model of know judgments and exclusion errors

In three experiments, aremember/know recognition test (Experiments 1–2) and an exclusion test (Experiments 2–3) were used to examine effects of repeated study presentations. An effect of study repetition was obtained for remember but not know judgments, similar to results reported by Gardiner, Kaminska, Dixon, and Java (1996). Experiment 2 demonstrated the similarity between know responses and exclusion errors; neither was affected by repeated study presentations. In Experiment 3, a response deadline procedure was used to show that exclusion errors are the product of two opposing processes—recollection and familiarity—both of which are influenced by repetition. The interpretation of exclusion errors and know responses is shown to require a dual-process model that includes an assumption about the relationship between processes.     

Sex-role identity and separation-individuation pathology

The Mahlerian theory of childhood psychological development suggests that the same sex parenting of girls in the mother-child dyad predisposes women to experience specific difficulties in the separation-individuation (S-I) process (Mahler, Pine & Bergman, 1975). Pathological states in adulthood have been attributed to these S-I disturbances (Pine 1979; Kernberg 1980). However, this theory has never been empirically tested. In this study 53 subjects were assessed for adult manifestation of disturbance in the separation-individuation process using a self-report questionnaire (Separation-Individuation Inventory: Christenson & Wilson, 1985), In contrast to previous theoretical work, women showed significantly lower levels of disturbance in the separation-individuation process than did men. Assessment of sex-role identity (Bem Sex Role Inventory: Bem, 1981) showed no significant difference between overall sex-role identity of the male and female subjects. Individuals lacking any clear sex-role identity showed significantly higher levels of disturbance in the separation-individuation process than those with feminine, masculine or androgynous identity. These findings demonstrate the importance of considering sex-role identity as well as biological sex when describing some psychological characteristics and also demonstrate the importance of any sex-role acquisition, whether male or female, for psychological well-being.     

On the likelihood ratio test in structural equation modeling when parameters are subject to boundary constraints

The authors show how the use of inequality constraints on parameters in structural equation models may affect the distribution of the likelihood ratio test. Inequality constraints are implicitly used in the testing of commonly applied structural equation models, such as the common factor model, the autoregressive model, and the latent growth curve model, although this is not commonly acknowledged. Such constraints are the result of the null hypothesis in which the parameter value or values are placed on the boundary of the parameter space. For instance, this occurs in testing whether the variance of a growth parameter is significantly different from 0. It is shown that in these cases, the asymptotic distribution of the chi-square difference cannot be treated as that of a central chi-square-distributed random variable with degrees of freedom equal to the number of constraints. The correct distribution for testing 1 or a few parameters at a time is inferred for the 3 structural equation models mentioned above. Subsequently, the authors describe and illustrate the steps that one should take to obtain this distribution. An important message is that using the correct distribution may lead to appreciably greater statistical power.     

Isolating the contributions of familiarity and source information to item recognition: a time course analysis.

Recognition memory may be mediated by the retrieval of distinct types of information, notably, a general assessment of familiarity and the recovery of specific source information. A response-signal speed-accuracy trade-off variant of an exclusion procedure was used to isolate the retrieval time course for familiarity and source information. In 2 experiments, participants studied spoken and read lists (with various numbers of presentations) and then performed an exclusion task, judging an item as old only if it was in the heard list. Dual-process fits of the time course data indicated that familiarity information typically is retrieved before source information. The implications that these data have for models of recognition, including dual-process and global memory models, are discussed.     

Development of the Critical Elements of Genetic Evaluation and Genetic Counseling for Genetic Professionals and Perinatologists in Washington State

We present a method for the development of consensus documents describing the components of genetic evaluation and genetic counseling for various diagnoses. These documents were developed to encourage consistency among genetic professionals in Washington State. Other possible uses of these documents are to provide information regarding genetic evaluations for health care practitioners and payers, and to assist in quality assurance and genetic training programs. A working group of six genetic professionals developed two templates for the critical elements of genetic evaluation and genetic counseling, for clinical (nonprenatal) and prenatal patients. The working group then completed prototype templates for several specific genetic disorders. The templates and prototypes were sent to interested genetic professionals and perinatologists who submitted a total of 76 draft critical elements (CE's) to the working group. At two statewide meetings, participating practitioners modified and unanimously approved the CE templates, then unanimously approved the 21 draft CEs that had been finalized in small group discussions. Approved CE's were distributed to genetic professionals and perinatologists within the state.     

Understanding the Relationship Between State Forgiveness and Psychological Wellbeing: A Qualitative Study

Over the last 20 years, increasing attention has been given to associations between dispositional forgiveness and specific mental health problems. However, few studies have assessed whether forgiving real-life interpersonal hurts may be related to diverse psychological health outcomes. The present study addresses this gap by investigating, in depth, relationships between perceptions about state forgiveness and a variety of mental wellbeing outcomes as well as exploring perceptions about the factors that may modify such effects. Developing an understanding of a forgiveness wellbeing relationship is of relevance to healthcare workers, researchers and policy makers with an interest in improving public health. In-depth semi-structured interviews were conducted, and data were analysed using grounded theory methods. From England and Ireland, eleven adults who were affiliated with religious/spiritual and secular/atheist groups were recruited using purposive and convenience sampling methods. Key themes that appeared to be related to the effects of unforgiveness were: increases in negative affect; reduction in cognitive abilities and barriers to psychological and social growth. For the majority of participants, state forgiveness had strong ties to participants perceived sense of mental wellbeing, including reductions in negative affect, feeling positive emotions, positive relations with others, spiritual growth, a sense of meaning and purpose in life as well as a greater sense of empowerment. The data also revealed a number of factors that may positively or negatively influence a forgiveness–wellbeing link such as: viewing an offender as spiritually similar or different, responsibility/karma, blaming, wanting restitution/apology as well as practices such as meditation and prayer. The findings suggest that forgiving a range of real-life interpersonal offences may be an important determinant of psychological wellbeing, particularly among religious/spiritual populations. Further research is, however, needed.     

Executive dysfunction as a risk marker for substance abuse: The role of impulsive personality traits

The relationships between family history of substance use, executive functions, impaired decision making, and current substance dependence are the focus of this study. Thirty-eight substance-dependent inpatients were compared with 30 community controls on performance on the Wisconsin Card Sorting Test, Trail-Making Test-B, the Stroop Color Word Test, the Wais-II Digit Span, and the Iowa Gambling Task. Recent alcohol use, depressive symptoms, and impulsivity were also assessed. As hypothesized, individuals with substance dependence exhibited poorer executive functioning. Family history status was modestly related to impaired performance on tests designed to measure the integrity of the dorsolateral prefrontal cortex. In particular, substance-dependent, family history positive individuals performed less well on the Wisconsin Card Sorting Test than substance-dependent individuals without a family history. Digit Span performances were worse among family history positive controls when compared with family history negative controls. Impulsive personality traits—specifically, difficulty thinking before acting (Urgency)—were related, as hypothesized, to executive functioning. Results indicate that family history status confers an increased risk of impairment beyond that conferred by recent substance abuse, and that impulsive personality traits are related to performance on tests of executive functions. Implications for criminality are discussed. Copyright © 2008 John Wiley & Sons, Ltd.