Nativism and neurobiology: Representations, representing, and the continuum of cognition.

Whether or not the mind contains innately specified representations is highly contestable, especially in light of neurobiological evidence for the plasticity of the brain. In what follows, I provide an overview of the debate as it now stands and a discussion of the possibility, proposed by Clark (1998) and others, that representations need not be localized and are better understood as distributed systems. I then seek to tie the debate into a similar controversy surrounding the architecture of the mind. While advocates of modularity find arguments for innately specified and domain-specific representations palatable, as the thesis of innateness only strengthens their claims, favorers of a more domain-general learning mechanism are not convinced by arguments for innate specificity and instead insist that representations emerge or are learned. Rather than come down on one side of these issues, I propose, in the spirit of Cundall (2006), that cognition is more aptly conceived of as a continuum: the domains by which certain "representers" are constrained turn out to be innate, while many of the complex representations, in particular, higher-level social-cognitive representations, come from more general learning and development. Thus, the problem of reconciling nativism and neurobiology turns out to be a matter not of choosing one of two extremes, but instead, adopting an intermediary view. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Review of The IQ game: A methodological inquiry into the heredity-environment controversy and Intelligence, Heredity and Environment.

Reviews the books, The IQ Game. A Methodological Inquiry into the Heredity-Environment Controversy by Howard F. Taylor (1980); and Intelligence, Heredity and Environment by Philip E. Vernon (1979). A fundamental issue in psychology is the relation between differences in heredity and differences in human behaviour and mental characteristics. The history of vigorous debate on this question is ancient, and two recent books show that it is far from being resolved. The approaches and conclusions by the two authors are so different that they are best presented as a study of contrasts. In doing so, I have chosen three specific topics for discussion which are addressed explicitly by both authors. Taylor reviews Burt's publications as well as critiques by Kamin (1974), Dorfman (1978), Hearnshaw (1979) and others, concluding that the data 'obviously cannot be used in this analysis.' Vernon, on the other hand, reprints many of Burt's correlations for IQ scores of relatives in several tables and relies heavily on Sir Cyril's analyses. He notes there are reasons to doubt the accuracy of some of the figures, but he vigorously defends Burt against charges of fraud and accuses Leon Kamin, who first exposed Sir Cyril, of being 'a good deal more one-sided than Burt.' Both authors make extensive use of the concept of 'heritability,' but only Taylor explains it clearly and correctly. Of these two books, only the one by Taylor adds anything positive to the extensive discussions of heredity and intelligence during the last decade. The IQ Game is a major contribution, being thorough, critical and thought-provoking. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Gender differences and developmental change in externalizing disorders from late adolescence to early adulthood: A longitudinal twin study.

Using data from over 1,000 male and female twins participating in the Minnesota Twin Family Study, the authors examined developmental change, gender differences, and genetic and environmental contributions to the symptom levels of four externalizing disorders (adult antisocial behavior, alcohol dependence, nicotine dependence, and drug dependence) from ages 17 to 24. Both men and women increased in symptoms for each externalizing disorder, with men increasing at a greater rate than women, such that a modest gender gap at age 17 widened to a large one at age 24. Additionally, a mean-level gender difference on a latent Externalizing factor could account for the mean-level gender differences for the individual disorders. Biometric analyses revealed increasing genetic variation and heritability for men but a trend toward decreasing genetic variation and increasing environmental effects for women. Results illustrate the importance of gender and developmental context for symptom expression and the utility of structural models to integrate general trends and disorder-specific characteristics. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The silence of the library: Environment, situational norm, and social behavior.

On the basis of the idea that situational norms are mentally represented as associations between environments and normative behavior, it was proposed that an environment can automatically direct normative behavior. More specifically, when situational norms are well-established (e.g., when entering the library, one should be silent), an environment is capable of automatically activating mental representations of normative behavior and the behavior itself. In these experiments, participants were exposed to pictures of environments, and effects on accessibility of representations of normative behavior and on actual behavior were assessed. Results indicated that representations of behavior and actual behavior itself are activated automatically when (a) goals to visit the environment are active and (b) strong associations between environment and normative behavior are established. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Effects of neonatal medial versus lateral temporal cortex injury: Theoretical comment on Malkova et al. (2010).

The article by Malkova, Mishkin, Suomo, and Bachevalier (see record 2010-24688-002) adds an important piece to our understanding of the role of the medial versus lateral temporal regions in socioemotional behavior. In their paper, they evaluate the effect of infant and adult amygdala lesions and infant inferotemporal cortex lesions on the social interactions of monkeys in infancy and adulthood. The results show that medial temporal lesions performed in infants produce greater effects on socioaffective behavior than similar lesions in adulthood and that infant monkeys with inferotemporal lesions exhibit social deficits that are resolved by adulthood. These results are relevant to three significant issues: (1) the role of the medial temporal and lateral temporal cortex in the symptoms of the Kluver-Bucy syndrome; (2) the role of age at injury in behavioral change after cerebral injuries; and (3) the importance of lesion locus and behavioral measure for recovery from infant and adult cerebral injury. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A mechanistic explanation of popularity: Genes, rule breaking, and evocative gene–environment correlations.

[Correction Notice: An erratum for this article was reported in Vol 97(1) of Journal of Personality and Social Psychology (see record 2009-08950-010). Due to a production error, an incorrect version of the article was printed. To see the complete, corrected article, please go to http://dx.doi.org/10.1037/a0013702.] Previous work has suggested that the serotonergic system plays a key role in “popularity” or likeability. A polymorphism within the 5HT2A serotonin receptor gene (?G1438A) has also been associated with popularity, suggesting that genes may predispose individuals to particular social experiences. However, because genes cannot code directly for others' reactions, any legitimate association should be mediated via the individual's behavior (i.e., genes→behaviors→social consequences), a phenomenon referred to as an evocative gene–environment correlation (rGE). The current study aimed to identify one such mediating behavior. The author focused on rule breaking given its prior links to both the serotonergic system and to increased popularity during adolescence. Two samples of previously unacquainted late-adolescent boys completed a peer-based interaction paradigm designed to assess their popularity. Analyses revealed that rule breaking partially mediated the genetic effect on popularity, thereby furthering our understanding of the biological mechanisms that underlie popularity. Moreover, the present results represent the first meaningfully explicated evidence that genes predispose individuals not only to particular behaviors but also to the social consequences of those behaviors. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Complex span versus updating tasks of working memory: The gap is not that deep.

How to best measure working memory capacity is an issue of ongoing debate. Besides established complex span tasks, which combine short-term memory demands with generally unrelated secondary tasks, there exists a set of paradigms characterized by continuous and simultaneous updating of several items in working memory, such as the n-back, memory updating, or alpha span tasks. With a latent variable analysis (N = 96) based on content-heterogeneous operationalizations of both task families, the authors found a latent correlation between a complex span factor and an updating factor that was not statistically different from unity (r = .96). Moreover, both factors predicted fluid intelligence (reasoning) equally well. The authors conclude that updating tasks measure working memory equally well as complex span tasks. Processes involved in building, maintaining, and updating arbitrary bindings may constitute the common working memory ability underlying performance on reasoning, complex span, and updating tasks. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Review of the evidence base for treatment of childhood psychopathology: Externalizing disorders.

This article reviews controlled research on treatments for childhood externalizing behavior disorders. The review is organized around 2 subsets of such disorders: disruptive behavior disorders (i.e., conduct disorder, oppositional defiant disorder) and attention-deficit/hyperactivity disorder (ADHD). The review was based on a literature review of nonresidential treatments for youths ages 6-12. The pool of studies for this age group was limited, but results suggest positive outcomes for a variety of interventions (particularly parent training and community-based interventions for disruptive behavior disorders and medication for ADHD). The review also highlights the need for additional research examining effectiveness of treatments for this age range and strategies to enhance the implementation of effective practices. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Exploring gene–environment interactions: Socioregional moderation of alcohol use.

Examples of gene–environment interaction in human behavioral data are relatively rare; those that exist have used simple, dichotomous measures of the environment. The authors describe a model that allows for the specification of more continuous, more realistic variations in environments as moderators of genetic and environmental influences on behavior. Using data from a population-based Finnish twin study, the authors document strong moderating effects of socioregional environments on genetic and environmental influences on adolescent alcohol use, with nearly a five-fold difference in the magnitude of genetic effects between environmental extremes. The incorporation of specific environmental measures into genetically informative designs should prove to be a powerful method for better understanding the nature of gene–environment interaction and its contribution to the etiology of behavioral variation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Reading and the corpus callosum: An MRI family study of volume and area.

This study examines the corpus callosum in 68 readers nested in 24 families. Callosa were measured and controlled for whole brain volume, intelligence, and gender. The relation of corpus callosum size to the within-family variance of oral reading was investigated with various measurements: volume, midsagittal area, and anterior-to-posterior one-fifth area segmentations. Because this is the first known publication of MRI calculations of corpus callosum volume, some basic questions about bilateral symmetry and the efficacy of area versus volumetric measurements were explored. Results suggest that better readers within families have larger midsagittal areas at the midbody. Although reliably measured, volume did not contribute to oral reading but was highly correlated with area. Bilateral volumes of the corpus callosum were symmetric. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The plasticity of human maternal brain: Longitudinal changes in brain anatomy during the early postpartum period.

Animal studies suggest that structural changes occur in the maternal brain during the early postpartum period in regions such as the hypothalamus, amygdala, parietal lobe, and prefrontal cortex and such changes are related to the expression of maternal behaviors. In an attempt to explore this in humans, we conducted a prospective longitudinal study to examine gray matter changes using voxel-based morphometry on high resolution magnetic resonance images of mothers' brains at two time points: 2–4 weeks postpartum and 3–4 months postpartum. Comparing gray matter volumes across these two time points, we found increases in gray matter volume of the prefrontal cortex, parietal lobes, and midbrain areas. Increased gray matter volume in the midbrain including the hypothalamus, substantia nigra, and amygdala was associated with maternal positive perception of her baby. These results suggest that the first months of motherhood in humans are accompanied by structural changes in brain regions implicated in maternal motivation and behaviors. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Managing the innovative process: The dynamic role of leaders.

Innovation has become increasingly important to the survival of organizations. Leaders must manage the process in a series of planning stages. These stages are qualitatively different and thus, have implications for what the leader must think about and do. The relevant leader cognition and social behaviors are discussed, as they must change throughout the process of planning for innovation. In order for leaders to effectively and efficiently manage innovation, they must be able to recognize and adapt to the varying requirements. Existing discrepancies in the literature may be resolved when considered within the context of these stages. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Spinning in the scanner: Neural correlates of virtual reorientation.

Recent studies have used spatial reorientation task paradigms to identify underlying cognitive mechanisms of navigation in children, adults, and a range of animal species. Despite broad interest in this task across disciplines, little is known about the brain bases of reorientation. We used functional magnetic resonance imaging to examine neural activity in adults during a virtual reality version of the reorientation task. Three environments that varied in the cues provided were studied: a rectangular room with 4 identical gray walls (Geometry), a square room with 3 gray walls and 1 red wall (Feature), and a rectangular room with 3 gray walls and 1 red wall (Feature + Geometry). Multiple areas within the medial temporal lobe (MTL) showed increased activation when a feature was present compared with when reorientation was based only on geometric cues. In contrast, reliance on geometric cues significantly activated a number of non-MTL structures, including the prefrontal cortex and inferior temporal gyrus. These results provide neural evidence for processing differences between the 2 types of cue as well as insight into developmental and comparative aspects of reorientation. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Treating co-occurring Axis I disorders in recurrently suicidal women with borderline personality disorder: A 2-year randomized trial of dialectical behavior therapy versus community treatment by experts.

This study evaluated whether dialectical behavior therapy (DBT) was more efficacious than treatment by nonbehavioral psychotherapy experts in reducing co-occurring Axis I disorders among suicidal individuals with borderline personality disorder (BPD). Women with BPD and recent and repeated suicidal and/or self-injurious behavior (n = 101) were randomly assigned to 1 year of DBT or community treatment by experts (CTBE), plus 1 year of follow-up assessment. For substance dependence disorders (SDD), DBT patients were more likely to achieve full remission, spent more time in partial remission, spent less time meeting full criteria, and reported more drug- and alcohol-abstinent days than did CTBE patients. These findings suggest that improvements in co-occurring SDD among suicidal BPD patients are specific to DBT and cannot be attributed to general factors associated with nonbehavioral expert psychotherapy. Further, group differences in SDD remission were not explained by either psychotropic medication usage or changes in BPD criterion behaviors. DBT and CTBE did not significantly differ in the reduction of anxiety disorders, eating disorders, or major depressive disorder. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

A prospective study of short- and long-term outcomes after traumatic brain injury in children: Behavior and achievement.

Longitudinal behavior and achievement outcomes of traumatic brain injury (TBI) were investigated in 53 children with severe TBI, 56 children with moderate TBI, and 80 children with orthopedic injuries not involving brain insult. Measures of preinjury child and family status and of postinjury achievement skills were administered shortly after injury. Assessments were repeated 3 times across a mean follow-up interval of 4 years. Results from mixed model analysis revealed persisting sequelae of TBI. Recovery of math skills was observed in the severe TBI group but only for children from less stressed families. Social disadvantage in children with TBI predicted more adverse behavioral sequelae and less favorable changes in some outcome measures. The findings suggest that pediatric TBI has long-term effects on behavior and achievement but that postinjury progress is influenced by the family environment. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

SOCIAL: An integrative framework for the development of social skills.

Despite significant advances in the field of social neuroscience, much remains to be understood regarding the development and maintenance of social skills across the life span. Few comprehensive models exist that integrate multidisciplinary perspectives and explain the multitude of factors that influence the emergence and expression of social skills. Here, a developmental biopsychosocial model (SOCIAL) is offered that incorporates the biological underpinnings and socio-cognitive skills that underlie social function (attention/executive function, communication, socio-emotional skills), as well as the internal and external (environmental) factors that mediate these skills. The components of the model are discussed in the context of the social brain network and are supported by evidence from 3 conditions known to affect social functioning (autism spectrum disorders, schizophrenia, and traumatic brain injury). This integrative model is intended to provide a theoretical structure for understanding the origins of social dysfunction and the factors that influence the emergence of social skills through childhood and adolescence in both healthy and clinical populations. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Rethinking the effects of stressors: A longitudinal study on personal initiative.

This study examined the relationship between stressors at work and personal initiative (PI), one proactive concept of extra-role performance. Using a control theory framework to describe the stress process, the authors hypothesized that stressors should be positively related to PI. This departs from findings of negative relationships between stressors and other types of performance. Furthermore, curvilinear relationships were tested. The analyses, based on 4 measurement waves of a longitudinal field study with 172 to 193 participants, showed that stressors were positively related to subsequent changes in PI; there was no support for a curvilinear relationship. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

On the application of genetic expectancies as age-specific base rates in the study of human behavior disorders.

"The long recognized tendency of many abnormal behavior patterns to run in families may prove useful in understanding, predicting, and controlling such behavior, regardless of whether the ultimate cause lies in social heredity or in biological heredity and regardless of the extent to which these are correlated." The writers suggest that it is now possible to determine age-specific statements of probability that various disorders will develop in various subpopulations which should be studied longitudinally to discover the differences between those Ss who develop the disorder and those who do not. Examples of the uses of genetic expectancies are given. 25 references. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Refinements in the hierarchical structure of externalizing psychiatric disorders: Patterns of lifetime liability from mid-adolescence through early adulthood.

Research on hierarchical modeling of psychopathology has frequently identified 2 higher order latent factors, internalizing and externalizing. When based on the comorbidity of psychiatric diagnoses, the externalizing domain has usually been modeled as a single latent factor. Multivariate studies of externalizing symptom features, however, suggest multidimensionality. To address this apparent contradiction, confirmatory factor analytic methods and information-theoretic criteria were used to evaluate 4 theoretically plausible measurement models based on lifetime comorbidity patterns of 7 putative externalizing disorders. Diagnostic information was collected at 4 assessment waves from an age-based cohort of 816 persons between the ages of 14 and 33. A 2-factor model that distinguished oppositional behavior disorders (attention-deficit/hyperactivity disorder, oppositional defiant disorder) from social norm violation disorders (conduct disorder, adult antisocial behavior, alcohol use disorder, cannabis use disorder, hard drug use disorder) demonstrated consistently good fit and superior approximating abilities. Analyses of psychosocial outcomes measured at the last assessment wave supported the validity of this 2-factor model. Implications of this research for the theoretical understanding of domain-related disorders and the organization of classification systems are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Just because you're imaging the brain doesn't mean you can stop using your head: A primer and set of first principles.

Developments within the neurosciences, cognitive sciences, and social sciences have contributed to the emergence of social neuroscience. Among the most obvious contemporary developments are brain-imaging procedures such as functional magnetic resonance imaging. The authors outline a set of first principles designed to help make sense of brain-imaging research within the fields of cognitive and social neuroscience. They begin with a principle few would debate--that social cognition, emotion, and behavior involve the brain--but whose implications might not be entirely obvious to those new to the field. The authors conclude that (a) complex aspects of the mind and behavior will benefit from yet a broader collaboration of neuroscientists, cognitive scientists, and social scientists, and (b) social psychologists bring important theoretical, methodological, and statistical expertise to this interdisciplinary enterprise. (PsycINFO Database Record (c) 2010 APA, all rights reserved)