Neuroanatomical correlates of category-specific semantic disorders: A critical survey

Current models of verbal short‐term memory (STM) propose various mechanisms for serial order. These include a gradient of activation over items, associations between items, and associations between items and their positions relative to the start or end of a sequence. We compared models using a variant of Hebb's procedure in which immediate serial recall of a sequence improves if the sequence is presented more than once. However, instead of repeating a complete sequence, we repeated different aspects of serial order information common to training lists and a subsequent test list. In Experiment 1, training lists repeated all the item–item pairings in the test list, with or without the position–item pairings in the test list. Substantial learning relative to a control condition was observed only when training lists repeated item–item pairs with position–item pairs, and position was defined relative to the start rather than end of a sequence. Experiment 2 attempted to analyse the basis of this learning effect further by repeating fragments of the test list during training, where fragments consisted of either isolated position–item pairings or clusters of both position–item and item–item pairings. Repetition of sequence fragments led to only weak learning effects. However, where learning was observed it was for specific position–item pairings. We conclude that positional cues play an important role in the coding of serial order in memory but that the information required to learn a sequence goes beyond position–item associations. We suggest that whereas STM for a novel sequence is based on positional cues, learning a sequence involves the development of some additional representation of the sequence as a whole.     

The Effect of Age and Socio-Cultural Factors on Self-Rated Well-Being and Metacognitive and Mnestic Efficiency Among Healthy Elderly People

The aim of the present research was to investigate the effect of cross-cultural and age-related factors on self-referent metacognitive efficiency, psychological well-being, and mnestic performance in late adulthood. Ninety-three healthy adults recruited in individualistic northwest Italian and collectivistic Sardinian contexts were respectively assigned to the Old (i.e., 65–74 years) and Very Old (i.e., ≥ 75 years) groups and were individually administered a battery of well-being and metacognitive measures and working memory tasks. A series of MANOVAs was carried out on well-being and metacognitive measures and working memory tasks. Sardinians showed greater levels of perceived well-being, less marked psychological distress, and more preserved mnestic functions than the controls from the northwest Italian context. Moreover, participants from the Old group self-referred more coping strategies, emotional competencies, and personal satisfaction, and less depressive symptoms. Then, a hierarchical linear regressions where different socio-demographic, working memory metacognitive and social desirability measures were used as predictors of general psychological well-being shows that socio cultural context, social desirability, visuo-spatial sequential working memory and metamemory measures predict perceived well-being. Socio-cultural contexts emphasizing the positive social role of the elderly seem to promote psychological well-being, that is, life quality in late adulthood.     

Perceived Cognitive Efficiency and Subjective Well-Being in Late Adulthood: The Impact of Developmental Factors

The current literature shows cross-cultural differences related to implicit theories of ageing. Specifically, in the Western individualistic cultural context, elderly people are perceived as obsolete, weak and unable to contribute usefully to society, whereas in collectivistic cultures, older people are venerated as a source of knowledge and cultural traditions (e.g. Yoon et al. in Psychol Aging 15:694–704, 2000). The focus of the current study was to investigate the effect of age-related factors affecting self-referent well-being in the Italian population. One hundred and thirty-nine healthy adults (20–99 years) were recruited in Northern Italian (i.e. individualistic context) and Sardinian (i.e. collectivist context) contexts and were, respectively, assigned to the following groups: Young (20–30 years old), Old (65–74 years old) and Very Old (>75 years old). Participants were administered a battery of tests, including self-referent cognitive efficiency scales, subjective psychological well-being, depression and psychological distress scales. Participants from Sardinia showed greater levels of well-being and lower levels of psychological distress than adults from Northern Italy. Moreover, participants from the Old group reported more coping strategies, emotional competencies and personal satisfaction, as well as fewer depressive symptoms, than the Very Old group. One possible explanation is that sociocultural contexts emphasising the positive social role of the elderly like that prevailing in Sardinia promote psychological well-being in late adulthood.     

Examining adversarial growth in illness: The factor structure of the silver lining questionnaire (SLQ-38)

The Silver Lining Questionnaire (SLQ-38) is purported to measure 10 aspects of adversarial growth in illness. To date however, no empirical evidence exists to support this claim. Hence the aim of this study was to investigate the factor structure of the SLQ-38 in a sample of 560 individuals with multiple sclerosis (MS), cancer, cardiac, and renal disease. The results demonstrate that 24 SLQ-38 items can be factored into five subscales: improved personal relationships, greater appreciation for life, positive influence on others, personal inner strength and changes in life philosophy, all of which are in accordance with the literature on adversarial growth. Individuals with MS experienced lower adversarial growth compared to other illness groups. Gender, age and time since diagnosis were unrelated to adversarial growth in illness. The utility of the revised SLQ-38 is discussed along with suggestions for future research on the convergent and divergent validity of this revised instrument.     

Family Therapy With Irish-Americans

This paper presents a paradigm for understanding the cultural values and family patterns of Irish-American families and offers suggestions for clinical intervention. Families' correspondence to the model described will depend upon their level of acculturation, socioeconomic status, and other contextual factors. The paradigm suggests a number of issues that may create difficulties for the therapist and for the family in therapy. In general, behavioral techniques, Bowen systems therapy, and strategic interventions may be more useful than techniques emphasizing expression of emotions in therapy or direct attempts to alter communication or family behavior in therapy sessions, as used in structural therapy.     

MEASUREMENT ERROR IN RESEARCH ON HUMAN RESOURCES and FIRM PERFORMANCE: HOW MUCH ERROR IS THERE AND HOW DOES IT INFLUENCE EFFECT SIZE ESTIMATES?

Studies of the relationship between human resource (HR) practices and firm performance typically use a single respondent to assess firm level HR practices or HR effectiveness. However, previous research in other substantive areas suggests that rater differences are a potentially important source of measurement error. We demonstrate analytically the potential consequences of both random and systematic measurement error in research on HR and firm performance. However, our main focus is on random error and we show how generalizability theory can be applied to obtain better estimates of reliability by simultaneously recognizing multiple sources (e.g., items, raters) of random measurement error. These more inclusive reliability estimates, in turn, offer the possibility of more precisely quantifying substantive relationships in the HR and firm performance literature. In our sample, reliabilities (as estimated by generalizability coefficients) for single-rater assessments of HR variables were generally below .50. This degree of measurement error, if present in substantive studies on HR and firm performance, could lead to considerable bias, given that an unstandardized regression coefficient is corrected for measurement error in the independent variable by dividing by its reliability coefficient (not its square root). We also found only limited convergent validity between HR and line managers ratings of a second type of HR measure, HR effectiveness. In general, our findings suggest that future researchers need to devote greater attention to measurement error and construct validity issues. Our study provides an example of how generalizability theory can be useful in this pursuit.