An overview on Primary Progressive Aphasia and its variants

We present a review of the literature on Primary Progressive Aphasia (PPA) together with the analysis of neuropschychological and neuroradiologic profiles of 42 PPA patients. Mesulam originally defined PPA as a progressive degenerative disorder characterized by isolated language impairment for at least two years. The most common variants of PPA are: 1) Progressive nonfluent aphasia (PNFA), 2) semantic dementia (SD), 3) logopenic progressive aphasia (LPA). PNFA is characterized by labored speech, agrammatism in production, and/or comprehension. In some cases the syndrome begins with isolated deficits in speech. SD patients typically present with loss of word and object meaning and surface dyslexia. LPA patients have word-finding difficulties, syntactically simple but accurate language output and impaired sentence comprehension. The neuropsychological data demonstrated that SD patients show the most characteristic pattern of impairment, while PNFA and LPA overlap within many cognitive domains. The neuroimaging analysis showed left perisylvian region involvement. A comprehensive cognitive, neuroimaging and pathological approach is necessary to identify the clinical and pathogenetic features of different PPA variants.     

Etiological contributions to heavy drinking from late adolescence to young adulthood

The authors examined genetic and environmental contributions to stability and change in heavy drinking from late adolescence to young adulthood in a sample of 1,152 twin pairs. In men, heavy drinking was similarly heritable at ages 17 (h2=.57) and 20 (h2=.39), and its stability owed primarily to common genetic factors. In women, heavy drinking was less heritable than in men at ages 17 (h2=.18) and 20 (h2=.30) and its stability was primarily due to enduring shared environmental influences. P3 amplitude, an event-related brain potential marker of alcoholism risk, was less predictive of heavy drinking in women than in men, providing further support for the proposition that biological factors have less impact on heavy drinking in young adult women than in young adult men.     

Psychological-state theories about significant others: implications for the content and structure of significant-other representations

Three studies tested a theory-based approach to significant-other representations. The central hypothesis was that perceivers are especially likely to possess lay theories to explain the responses of their significant others, and this is reflected in the content and structure of significant-other representations. Theories were defined in IF-THEN terms as beliefs about the psychological states (e.g., "IF Bill wants to make a good impression.") that explain others' responses (e.g., ". THEN he acts friendly"). All three studies yielded evidence indicating that the content of significant-other representations is especially likely to include such psychological-state theories (PSTs). Study 3 assessed the internal structure of PSTs-specifically, the strength of the linkages between psychological-state IFs and the THENs they are believed to elicit-and showed that such linkages are particularly strong for PSTs about significant others. Overall, the findings add to the growing literature on the role of explanatory or lay-theoretical forms of knowledge in how perceivers make sense of the social world.     

The Validity of the Child Problematic Trait Inventory in 6–12 Year Old Italian Children: Further Support and Issues of Consistency Across Different Sources of Information and Different Samples

In the present study, teacher’s ratings, mother’s ratings, and father’s ratings on the Child Problematic Trait Inventory (CPTI) were obtained on two independent samples (N?=?381 and N?=?406, respectively) of Italian school age children (age range: 6–12 years). Cronbach alpha values greater than 0.80 were observed for all CPTI scale scores based on teacher’s ratings, mother’s ratings, and father’s ratings respectively. Although intraclass correlation values suggested poor parent-teacher agreement, robust weighted least square Confirmatory Factor Analyses (WLSMV CFAs) suggested that the three-factor model of the CPTI was consistently replicated as the best fitting model across all informants. Logistic regression analysis conducted in one of the samples showed that teacher’s ratings and mother’s ratings of the CPTI, but not CPTI father’s ratings, significantly predicted child’s problem behavior at school. Multiple regression analyses showed that CPTI scores were significantly predicted by selected temperament dimensions, but with different relationships for different sources of information. Overall, our findings suggest that the CPTI is a reliable and valid measure of problematic traits with a three-factor structure, although this study indicates that multiple sources of information may prove necessary when assessing psychopathy in school-age children with the CPTI.     

Multiple racial identities as sources of psychological resilience

Much of the research on multiracial individuals has focused on the impact of a multiracial background on psychological well‐being. This work, often using clinical samples, identified a higher prevalence of negative psychological outcomes among multiracial individuals, such as low self‐esteem, poor grades, or self‐hatred, and has emphasized that these negative outcomes stem from the unique challenges associated with navigating multiple racial identities. However, research on nonclinical samples finds that multiracial individuals fare as well as monoracial individuals on these, and other, outcomes. We put forth a synthesizing theory aimed at understanding how multiracial individuals develop adaptive coping strategies, which help them learn to navigate multiple identities and maintain positive psychological outcomes. In the current contribution, we build on existing research to theorize that multiracial individuals can engage in two psychological strategies that increase resilience: (a) switching between multiple racial identities and (b) reduced essentializing of race. Evidence and consequences of these two strategies are discussed. Taken together, in contrast to traditional depletion models of coping, this work highlights the unique experience of multiracial individuals and the potential psychological benefits of belonging to multiple racial groups in a racialized world.     

Musical expertise has minimal impact on dual task performance

Studies investigating effect of practice on dual task performance have yielded conflicting findings, thus supporting different theoretical accounts about the organisation of attentional resources when tasks are performed simultaneously. Because practice has been proven to reduce the demand of attention for the trained task, the impact of long-lasting training on one task is an ideal way to better understand the mechanisms underlying dual task decline in performance. Our study compared performance during dual task execution in expert musicians compared to controls with little if any musical experience. Participants performed a music recognition task and a visuo-spatial task separately (single task) or simultaneously (dual task). Both groups showed a significant but similar performance decline during dual tasks. In addition, the two groups showed a similar decline of dual task performance during encoding and retrieval of the musical information, mainly attributed to a decline in sensitivity. Our results suggest that attention during dual tasks is similarly distributed by expert and non-experts. These findings are in line with previous studies showing a lack of sensitivity to difficulty and lack of practice effect during dual tasks, supporting the idea that different tasks may rely on different and not-sharable attentional resources.     

Late Adoptions: Attachment Security and Emotional Availability in Mother–Child and Father–Child Dyads

A growing body of research suggests that a history of neglect, abuse and institutionalization can negatively affect late-adopted children’s attachment representations, and that adoptive parents can play a key role in enabling adopted children to earn secure attachments. Still, only a few studies have explored the quality of caregiver–child interaction in adoptive families. The present study aimed at verifying both the concordance of attachment in adoptive dyads (mother–children and father–children) and the relationship between attachment representations and parent–child interaction. The research involved 20 adoptive families in which the child’s arrival had occurred between 12 to 36 months before the assessment, and where children were aged between 4.5 and 8.5 years. Attachment was assessed through the Adult Attachment Interview for parents and through the Manchester Child Attachment Story Task for children. The emotional quality of parent–child interaction was assessed trough the Emotional Availability Scales. Our results pointed out the presence of a relation between attachment representations of late-adopted children and their adoptive mothers (75%, K?=?0.50, p?=?.025). In addition, we found that both insecure children and mothers showed lower levels of EA than secure ones. Some explanations are presented about why, in the early post-adoption period, child attachment patterns and dyadic emotional availability seem to be arranged on different frameworks for the two parental figures.     

A unilateral field advantage for detecting repeated elements

Previous studies have shown that letter repetitions are detected more rapidly when presented bilaterally (one letter in each visual field) than when presented unilaterally (both in the same field) when subjects have to report matches independently of case or font (e.g., Aa). This pattern of results is referred to as a bilateral field advantage. Here, we present evidence of an opposite pattern of results for detecting repeated items when they are physically identical. In our repetition detection paradigm, subjects indicated whether there was a repetition of any two of four presented items, one in each quadrant of the visual field. Stimulus classes tested included letters, color, size, orientation, and motion paths. The subjects were significantly faster at detecting unilateral versus bilateral repetitions for four out of the five stimuli classes tested, with a trend in the same direction for the fifth. This unilateral field advantage suggests that low-level processes group physically identical items more efficiently within hemifields than across.     

Relational selves as self-affirmational resources

Three studies examined the self-affirmational role of relational selves, or aspects of the self in relation to significant others. The overriding hypothesis was that individuals who view relational self-aspects as core to their identity are particularly likely to use them as self-affirmational resources in the face of threat. Supporting this, threat was especially likely to lead individuals for whom relationships are highly self-defining to spontaneously refer to relational self-aspects in a subsequent, self-relevant task. Moreover, spontaneous and induced relational self-affirmations in response to threat were especially esteem-repairing for such individuals. Together, these findings carve out a much-needed role for relational self-aspects in the self-affirmation literature, and dovetail with mounting appreciation of the far-ranging impact of significant others on the self-system.