Testing Structural Models of DSM-IV Symptoms of Common Forms of Child and Adolescent Psychopathology

Confirmatory factor analyses were conducted of Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) symptoms of common mental disorders derived from structured interviews of a representative sample of 4,049 twin children and adolescents and their adult caretakers. A dimensional model based on the assignment of symptoms to syndromes in DSM-IV fit better than alternative models, but some dimensions were highly correlated. Modest sex and age differences in factor loadings and correlations were found that suggest that the dimensions of psychopathology are stable across sex and age, but slightly more differentiated at older ages and in males. The dimensions of symptoms were found to be hierarchically organized within higher-order “externalizing” and “internalizing” dimensions, which accounted for much of their variance. Major depression and generalized anxiety disorder were substantially correlated with both the “externalizing” dimension and the “internalizing” dimension, however, suggesting the need to reconceptualize the nature of these higher-order dimensions.     

Neuroimaging evidence for agenda-dependent monitoring of different features during short-term source memory tests

A short-term source monitoring procedure with functional magnetic resonance imaging assessed neural activity when participants made judgments about the format of 1 of 4 studied items (picture, word), the encoding task performed (cost, place), or whether an item was old or new. The results support findings from long-term memory studies showing that left anterior ventrolateral prefrontal cortex (PFC) is engaged when people make source attributions about reflectively generated information (cognitive operations, conceptual features). The findings also point to a role for right lateral PFC in attention to perceptual features and/or familiarity in making source decisions. Activity in posterior regions also differed depending on what was evaluated. These results provide neuroimaging evidence for theoretical approaches emphasizing that agendas influence which features are monitored during remembering (e.g., M. K. Johnson, S. Hashtroudi, & D. S. Lindsay, 1993). They also support the hypothesis that some of the activity in left lateral PFC and posterior regions associated with remembering specific information is not unique to long-term memory but rather is associated with agenda-driven source monitoring processes common to working memory and long-term memory.     

Trans-saccadic perception

A basic question in cognition is how visual information obtained in separate glances can produce a stable, continuous percept. Previous explanations have included theories such as integration in a trans-saccadic buffer or storage in visual memory, or even that perception begins anew with each fixation. Converging evidence from primate neurophysiology, human psychophysics and neuroimaging indicate an additional explanation: the intention to make a saccadic eye movement leads to a fundamental alteration in visual processing itself before and after the saccadic eye movement. We outline five principles of 'trans-saccadic perception' that could help to explain how it is possible - despite discrete sensory input and limited memory - that conscious perception across saccades seems smooth and predictable.     

Fear Appeals Revisited: Testing a Unique Anti-smoking Film

Past research has found that fear-arousing persuasive messages can significantly affect attitudes, intentions, and behaviors. In this study, participants in high and low threat conditions viewed appropriately edited versions of a unique fear appeal video used in the American Lung Association’s anti-smoking campaign, while control condition participants viewed no film. Threat condition participants expressed stronger anti-smoking behavioral intentions than did control condition participants. These results represent the first effectiveness test of this widely used film.     

The FLMP STMPed

Massaro and Chen (2008) offer a commentary ostensibly on a recent article by Galantucci, Fowler, and Turvey (2006). Our article provided an evaluation of Alvin Liberman’s motor theory of speech perception. We considered it timely to evaluate the motor theory’s different claims, and we hoped to understand why the theory has been better received outside the field of speech than within it. Accordingly, we evaluated its component claims and embedded our presentation of the theory within a wider scientific context, rather than restricting it to the field of speech. However, Massaro and Chen did not undertake to understand the motor theory or to evaluate the effort by Galantucci et al. Rather, they chose to evaluate a different theory of speech than the one on which Galantucci et al. focused. They evaluated direct-realist theory, erroneously referring to it as a motor theory. I take this opportunity to clarify the difference, staving off potential confusion, and to address other errors in their critique.     

How Democracy Can Inform Consent: Cases of the Internet and Bioethics

Traditional conceptions of informed consent seem difficult or even impossible to apply to new technologies like biobanks, big data, or GMOs, where vast numbers of people are potentially affected, and where consequences and risks are indeterminate or even unforeseeable. Likewise, the principle has come under strain with the appropriation and monetisation of personal information on digital platforms. Over time, it has largely been reduced to bare assent to formalistic legal agreements. To address the current ineffectiveness of the norm of informed consent, I suggest that we need a notion of structural injustice (on a distinctive interpretation, elaborated here, which takes account of unequal power and property relations). I then argue that in order to protect and enhance people's freedom, we have to go beyond traditional applied ethics and introduce perspectives from democratic theory and social philosophy. I attempt to show how applications of the ‘all‐affected principle’, together with new forms of democratic participation, deliberation, and representation can helpfully frame the narrower principle of informed consent. There is an important role for what we could call collective consent, and informed consent can only succeed in increasing individual agency if it is situated within enhanced forms of democratic decision‐making.     

Semantic classification in aphasia: A study of basic, superordinate, and function relations

Nonfluent and fluent aphasics were given classification tasks that required the aphasics to identify three kinds of relations: same basic level category, same superordinate level category, and same function. The subjects received the items in word and picture form. In addition the aphasics were required to name the items they were asked to classify. The results showed that the ability to classify is more disrupted in fluent aphasia than in nonfluent aphasia. Within fluent aphasia, the degree to which classification is disrupted is dependent upon the type of relation being tested. While the overall performance of the fluent aphasics was depressed in comparison to nonfluent aphasics, it was significantly more depressed on function relations. The ability to name an item had a significant effect on the ability to classify only for basic level items.     

Medically Documented Suicide Ideation Among U.S. Army Soldiers

We used administrative data to examine predictors of medically documented suicide ideation (SI) among Regular Army soldiers from 2006 through 2009 (N = 10,466 ideators, 124,959 control person‐months). Enlisted ideators (97.8% of all cases) were more likely than controls to be female, younger, older when entering service, less educated, never or previously deployed, and have a recent mental health diagnosis. Officer ideators were more likely than controls to be female, younger, younger when entering service, never married, and have a recent mental health diagnosis. Risk among enlisted soldiers peaked in the second month of service and declined steadily, whereas risk among officers remained relatively stable over time. Risk of SI is highest among enlisted soldiers early in Army service, females, and those with a recent mental health diagnosis.