The neurocognition of conduct disorder behaviors: specificity to physical aggression and theft after controlling for ADHD symptoms

There is growing evidence that among the different conduct disorder (CD) behaviors, physical aggression, but not theft, links to low neurocognitive abilities. Specifically, physical aggression has consistently been found to be negatively related to neurocognitive abilities, whereas theft has been shown to be either positively or not related to neurocognition. The specificity of these links needs further examination because attention deficit hyperactivity disorder (ADHD) links to both physical aggression and neurocognitive variation. The development of self-reported physical aggression and theft, from age 11 to 17 years, was studied in a prospective at-risk male cohort via a dual process latent growth curve model. Seven neurocognitive tests at age 20 were regressed on the growth parameters of physical aggression and theft. The links between neurocognition and the growth parameters of physical aggression and theft were adjusted for ADHD symptoms at ages 11 and 15 (parent, child and teacher reports). Results indicated that verbal abilities were negatively related to physical aggression while they were positively associated with theft. However, inductive reasoning was negatively associated with increases in theft across adolescence. Symptoms of ADHD accounted for part of the neurocognitive test links with physical aggression but did not account for the associations with theft. These differences emphasize the importance of examining specific CD behaviors to better understand their neurodevelopmental mechanisms. They also suggest that youth who engage in different levels of physical aggression or theft behaviors may require different preventive and corrective interventions.     

From cognition’s location to the epistemology of its nature

One of the liveliest debates about cognition concerns whether our cognition sometimes extends beyond our brains and bodies. One party says Yes, another No. This paper shows that debate between these parties has been epistemologically confused and requires reorienting. Both parties frequently appeal to empirical considerations and to extra-empirical theoretical virtues to support claims about where cognition is. These things should constrain their claims, but cannot do all the work hoped. This is because of the overlooked fact, uncovered in this paper, that we could never distinguish the rival views empirically or by typical theoretical virtues. I show this by drawing on recent work on testing, predictive accuracy, and theoretical virtues. The recommendation to emerge is that we step back from debate about where cognition is, to the epistemology of what cognition is.     

Computer Modeling and the Fate of Folk Psychology

Although Paul Churchland and Jerry Fodor both subscribe to the so-called theory-theory – the theory that folk psychology (FP) is an empirical theory of behavior – they disagree strongly about FP's fate. Churchland contends that FP is a fundamentally flawed view analogous to folk biology, and he argues that recent advances in computational neuroscience and connectionist AI point toward development of a scientifically respectable replacement theory that will give rise to a new common-sense psychology. Fodor, however, wagers that FP will be largely preserved and vindicated by scientific investigations of behavior. Recent findings by developmental psychologists, I argue, will push both Churchlandians and Fodorians toward the pessimistic view that FP is a misguided theory that will never be displaced, because it is, so to speak, built into our cognitive systems. I explore the possibility of preserving optimism by rejecting the theory-theory and adopting the simulation theory , a competing view developed by Robert Gordon, Alvin Goldman, and Jane Heal. According to simulationists, common-sense interpretation of behavior is accomplished by means of pretense-like operations that deploy the cognitive system's own reasoning capabilities in a disengaged manner. Since on this view no theory-like set of principles would be needed, the simulation theory seems to enjoy a simplicity advantage over the theory-theory. Steven Stich and Shawn Nichols, however, contend that as the cognitive system would require special mechanisms for disengaged operation, the simplicity question cannot be resolved until suitable computational models are developed. I describe a set of models I have constructed to meet this need, and I discuss the contribution such models can make to determining FP's fate.     

Developmental Links Between Trajectories of Physical Violence,Vandalism, Theft,and Alcohol-Drug Use from Childhood to Adolescence

Differences in developmental trajectories of physical violence, vandalism, theft, and alcohol-drug use from ages 10 to 15 were studied. For females and for males, three trajectories of theft and of alcohol-drug use increased from 10 years to 15 years, while only the high trajectory of vandalism increased from ten to 14. All trajectories of physical violence decreased. Children who engaged in the high trajectories of vandalism, theft, and alcohol-drug use had a high probability of also being high in physical violence. Compared to males, females were less likely to be on the high trajectory of physical violence, and their trajectories of other antisocial behaviors were less strongly associated with high levels of physical violence. The results suggest that physical violence during pre-adolescence and adolescence has a different developmental pattern than other forms of antisocial behavior, and that its relation to these other forms of antisocial behavior differs by sex.     

Common Genetic but Specific Environmental Influences for Aggressive and Deceitful Behaviors in Preadolescent Males

Although both aggressive (AGG) and deceitful behaviors (DEC) are symptoms of childhood conduct problems, few studies have examined common vs. specific etiological influences. Early intervention is encouraged for conduct problems and findings from genetically informative studies can suggest whether interventions should focus on conduct problems in general or groupings of conduct problems more specifically. Twin model-fitting analyses were conducted on same and different teacher ratings of AGG and DEC for 872 9-year old male twin pairs. Common genetic influences were found to underlie the susceptibility for both AGG and DEC. The same teacher ratings resulted in somewhat higher heritability estimates than different teacher ratings. Results also indicated stronger environmental effects for DEC as compared with AGG, with a significant shared environmental component for same teachers and a substantial non-shared environmental component for different teachers. Our data suggest that AGG and DEC share risk genes and environmental factors may differentiate these two types of conduct problems. Characterizing these specific environmental factors may be useful when developing interventions.     

Exploring Criterion Confounding in the Measurement of Binge Eating Symptoms and Negative Affect

Common measures of eating disorder symptoms contain affect-related items. When associations between negative affect and eating disorder symptoms are examined, criterion confounding is possible. The current study explored whether criterion confounding biases estimates of relations between symptoms of binge eating and negative affect. Data were collected from first-year university student women via 14-day web-based daily diaries. The Minnesota Eating Behavior Survey (MEBS) measured daily symptoms of binge eating, and the Positive and Negative Affect Schedule (PANAS) measured daily negative affect. The inclusion of affect-related items in the MEBS biased mean level tests of negative affect, correlations of negative affect with symptoms of binge eating, and associations between the likelihood of reporting behavioral symptoms of binge eating and same-day negative affect. Converging results demonstrated the need to measure associated features and risk factors separately from problematic eating behavior symptoms.

The Moderating Role of Self-Efficacy Beliefs in the Relationship Between Anticipated Feelings of Regret and Condom Use1

This prospective study examined how the feelings of regret and self-blame one anticipates after engaging in unsafe sex affect condom use in new sexual relationships. The central theoretical question is whether self-efficacy perceptions can moderate the relationship between anticipated feelings and actual condom use. Consistent with theories of anticipated regret and social cognitive learning, participants were most likely to use condoms between the first and second waves of data collection when they anticipated negative feelings as a result of not using condoms (and positive feelings after having used condoms), particularly when they also believed that they had the power to exercise control over the sexual situation (high self-efficacy). The implications for interventions aimed at promoting safer sex are discussed.     

Commitment to the Relationship,Extradyadic Sex,and AIDS Preventive Behavior1

This study was conducted among 251 heterosexual adults in The Netherlands that included a substantial number of individuals who had had unprotected sex with a new partner. Relationship status and commitment had independent effects upon the willingness to engage in extradyadic sex above and beyond the effects of past extradyadic sex and satisfaction, and commitment was the only psychological predictor of the intention to use condoms in extradyadic sexual contacts. Commitment predicted the willingness to inform the steady partner about one's unsafe extradyadic sex and to protect the steady partner against the possible risk of HIV infection after unsafe extradyadic sex. The implications for AIDS prevention are discussed.     

Clients' beliefs about psychological problems

An investigation of clients beliefs about the causes and treatments of their own psychological problems, using a new instrument, the Opinions about Psychological Problems (OPP). We found that, although the beliefs about the various models were positively correlated, clients made clear overall discriminations between them. For causation, they tended to agree with the four psychological models (Behavioural, Cognitive, Humanistic and Psychodynamic) and the Naïve model, and tended to disagree with the Socio-economic and Organic models. For treatment, they endorsed Behavioural, Cognitive and Humanistic most highly, and again disagreed overall with Socio-economic and Organic. Individual difference variables showed that clients reporting a higher level of psychological symptoms tended to endorse all causation beliefs more highly, and also were more likely to agree with Behavioural, Cognitive, Humanistic and Psychodynamic treatments. The structure of clients' beliefs differed from that found in previous studies. There was a single factor which loaded on the four psychological models, with which the Organic, Socio-economic and Naive subscales were less strongly, but still positively, correlated