Post‐traumatic functional recovery and reorganization in animal models: A theoretical and methodological challenge

Studies addressing cerebral functional localization face methodological and theoretical problems. Lesion experiments expect that when a functionally specialized structure is missing, its function can be deduced from the resulting impairments. Mostly, however, initial impairments are partially or fully eliminated through functional recovery. Apparently, such a recovery contradicts the notion of functional localization. In order to understand the mechanisms of recovery, improved methodology and a new theoretical framework are required. Insights into the mechanisms of recovery can be achieved by using “challenge” techniques, where functionally recovered individuals are exposed to organic and behavioral challenges, e.g. pharmacological manipulations or additional lesions, as well as modified test situations. Using such methods, a number of principles of functional recovery have emerged. We evaluate some of the available theories of post‐traumatic recovery against these principles and find that none of them can account for the principles. Finally, we present a new conceptual framework – the Reorganization of Elementary Functions (REF) model. This model reconceptualizes the term “function”, suggests mechanisms of post‐traumatic reorganizations, and resolves the contradiction between localization and functional recovery.     

Gray matter correlates of fluid,crystallized, and spatial intelligence: Testing the P-FIT model

The parieto-frontal integration theory (P-FIT) nominates several areas distributed throughout the brain as relevant for intelligence. This theory was derived from previously published studies using a variety of both imaging methods and tests of cognitive ability. Here we test this theory in a new sample of young healthy adults (N = 100) using a psychometric battery tapping fluid, crystallized, and spatial intelligence factors. High resolution structural MRI scans (3T) were obtained and analyzed with Voxel-based Morphometry (VBM). The main findings are consistent with the P-FIT, supporting the view that general intelligence (g) involves multiple cortical areas throughout the brain. Key regions include the dorsolateral prefrontal cortex, Broca's and Wernicke's areas, the somato-sensory association cortex, and the visual association cortex. Further, estimates of crystallized and spatial intelligence with g statistically removed, still share several brain areas with general intelligence, but also show some degree of uniqueness.     

Longitudinal Effects of Latino Parent Cultural Stress,Depressive Symptoms,and Family Functioning on Youth Emotional Well‐Being and Health Risk Behaviors

U.S. Latino parents can face cultural stressors in the form of acculturative stress, perceived discrimination, and a negative context of reception. It stands to reason that these cultural stressors may negatively impact Latino youth's emotional well‐being and health risk behaviors by increasing parents' depressive symptoms and compromising the overall functioning of the family. To test this possibility, we analyzed data from a six‐wave longitudinal study with 302 recently immigrated (<5 years in the United States) Latino parents (74% mothers, M_age = 41.09 years) and their adolescent children (47% female, M_age = 14.51 years). Results of a cross‐lagged analysis indicated that parent cultural stress predicted greater parent depressive symptoms (and not vice versa). Both parent cultural stress and depressive symptoms, in turn, predicted lower parent‐reported family functioning, which mediated the links from parent cultural stress and depressive symptoms to youth alcohol and cigarette use. Parent cultural stress also predicted lower youth‐reported family functioning, which mediated the link from parent cultural stress to youth self‐esteem. Finally, mediation analyses indicated that parent cultural stress predicted youth alcohol use by a way of parent depressive symptoms and parent‐reported family functioning. Our findings point to parent depressive symptoms and family functioning as key mediators in the links from parent cultural stress to youth emotional well‐being and health risk behaviors. We discuss implications for research and preventive interventions.     

Family identity and severe mental illness: A thematic synthesis of qualitative studies

There is a growing amount of research showing that a shared social identity and the sense of belonging to a family have a potential effect on health. However, little is known about the effects of severe mental illness on family identity. The authors carried out this thematic synthesis based on a systematic review of literature on family narratives of severe mental illness and family identity. The main findings indicate that in many families (i) their identity—as a shared social identity—undergoes a transformation process by which the identity aspects of being a family are reinforced; (ii) family members often take on a caring role as their main family role; and finally, (iii) a cultural component shapes this transformation process. The authors describe implications for research and application in the mental health field. All in all, family identity is transformed by the experience of severe mental illness.     

Vygotsky and beyond: horizons for the future of psychology / Vygotski y más allá: horizontes para el futuro de la psicología

In this article some usually overlooked aspects of Vygotsky’s work are presented. First, the understanding of the mediation system as a trans-organic, extended branch of the psychological system. Second, the semantic nature of conscience and the systemic neuropsychological organization of higher functions. Third, the leading role played in the psychic system by directive functions. Fourth, the understanding of human evolution as open and permanently provisional. Last, a reference is made to the role of psychology in the process of human auto-evolution, which Vygotsky viewed as a mission.     

Objective age of acquisition norms for a set of 328 words in Spanish

Age of acquisition is one of the most important variables in picture naming. For this reason, a large number of findings concerning age-of-acquisition data have been published in recent years in a number of different languages. In this article, objective age-of-acquisition data in Spanish for 328 pictures were collected from a pool of 760 children, half of whom were boys and the other half girls. A total of 246 pictures were selected from the Snodgrass and Vanderwart (1980) set, and 82 were new pictures. Like the results of other studies, we found that objective age of acquisition correlates less than rated age of acquisition with familiarity and frequency, which indicates that the objective measure is less contaminated by other variables than are rated estimates. A very high correlation was obtained between the norms from this study and those published in English, French, Icelandic, and Italian. These norms will be very useful to Spanish psycholinguists and clinicians. Related materials may be downloaded from the Psychonomic Society Web archive at www.psychonomic.org/archive/.     

Consequences of Economic Inequality for the Social and Political Vitality of Society: A Social Identity Analysis

Economic inequality has been found to have pernicious effects, reducing mental and physical health, decreasing societal cohesion, and fueling support for nativist parties and illiberal autocratic leaders. We start this review with an outline of what social identity theorizing offers to the study of inequality. We then articulate four hypotheses that can be derived from the social identity approach: the fit hypothesis, the wealth-categorization hypothesis, the wealth-stereotype hypothesis, and the sociostructural hypothesis. We review the empirical literature that tests these hypotheses by exploring the effect of economic inequality, measured objectively by metrics such as the Gini coefficient as well as subjectively in terms of perceptions of economic inequality, on wealth categorization (of others and the self), the desire for more wealth and status, intergroup hostility, attitudes towards immigrants, prosocial behavior, stereotyping, the wish for a strong leader, the endorsement of conspiracy theories, and collective action intentions. As we will show, this research suggests that economic inequality may have even more far-reaching consequences than commonly believed. Indeed, investigating the effects of economic inequality on citizens' sociopolitical behaviors may be increasingly important in today's turbulent political and social landscape.     

Where perception meets memory: A review of repetition priming in visual search tasks

What we have recently seen and attended to strongly influences how we subsequently allocate visual attention. A clear example is how repeated presentation of an object’s features or location in visual search tasks facilitates subsequent detection or identification of that item, a phenomenon known as priming. Here, we review a large body of results from priming studies that suggest that a short-term implicit memory system guides our attention to recently viewed items. The nature of this memory system and the processing level at which visual priming occurs are still debated. Priming might be due to activity modulations of low-level areas coding simple stimulus characteristics or to higher level episodic memory representations of whole objects or visual scenes. Indeed, recent evidence indicates that only minor changes to the stimuli used in priming studies may alter the processing level at which priming occurs. We also review recent behavioral, neuropsychological, and neurophysiological evidence that indicates that the priming patterns are reflected in activity modulations at multiple sites along the visual pathways. We furthermore suggest that studies of priming in visual search may potentially shed important light on the nature of cortical visual representations. Our conclusion is that priming occurs at many different levels of the perceptual hierarchy, reflecting activity modulations ranging from lower to higher levels, depending on the stimulus, task, and context—in fact, the neural loci that are involved in the analysis of the stimuli for which priming effects are seen.     

Relationship between productivity and efficiency in research funding for Spanish regions

Quality is a major current needs and requirements for any university system. The funding that universities receive a relevant influence on the scientific productivity of these. Thus the main objective of this study is to classify the Spanish regions in terms of scientific productivity and economic efficiency of their universities. It followed the same procedure used to prepare the 2009 ranking of research productivity in Spanish universities. The results show that there are differences in the classifications made on the basis of productivity and efficiency in the investigation. The more efficient Spanish regions in managing its resources to obtain research results are Catalonia, Asturias, Aragon, and Cantabria. From the results, each region can compare their situation with the rest and analyze strengths and weaknesses in research in terms of resources.