ADHD and Judgments of Impulsivity in Rule Violations

Abstract

Participants with ADHD (n?=?45) and participants without ADHD (n?=?130, total n?=?175) judged hypothetical moral and conventional rule violations that varied the impulsivity of the act, the ADHD diagnosis, and the gender of the actor in order to examine (1) social reasoning about impulsiveness and (2) whether participants infer impulsiveness from the characteristics of the actor, including gender and ADHD-status. Moral violations were judged more negatively than conventional violations, even when they were impulsive. The characteristics of the actor influenced judgments in that participants judged boys’ behavior as more acceptable, as having less control, and as deserving of less punishment compared to girls. In addition, actors who were described as having ADHD were judged overall more positively. Participants with ADHD judged that all actors should receive similar punishment, regardless of the actor’s ADHD diagnosis, while participants without ADHD judged actors with ADHD should receive less punishment than those without.     

Reasoning's relation to bodily action

Recent philosophical work on the relation between reasoning and bodily action is dominated by two views. It is orthodox to have it that bodily actions can be at most causally involved in reasoning. Others have it that reasoning can constitutively involve bodily actions, where this is understood as a matter of non-mental bodily events featuring as constituents of practical reasoning. Reflection on cases of reasoning out-loud suggests a neglected alternative on which both practical and theoretical reasoning can have bodily actions as constituents, where such bodily actions themselves amount to contentful mental events. Furthermore, the natural lines of resistance to this view trade on type-token errors, or on a questionable common-factor assumption.     

Unconscious preparation: Effects of prime visibility on semantic generalization of task priming

Studies found that subliminal primes can be associated with specific tasks to facilitate task performance, and such learning is highly adaptive and generalizable. Meanwhile, conditioning studies suggest that aversive/reward learning and generalization actually occur at the semantic level. The current study shows that prime–task associations can also be generalized to novel word/neighbour primes from the same semantic category, and this occurs without contingency awareness. Previous studies have counterintuitively suggested that both the learning of task priming and the semantic priming of word neighbours depend on the lack of visibility. Here, we show that semantic generalization indeed depends on reduced visibility, but cannot occur subliminally. The current study shows for the first time that semantic learning and generalization can occur without any emotional or motivational factors, and that semantic priming can occur for arbitrary-linked stimuli in a context completely devoid of semantics.     

Adding Types,But Not Tokens,Affects Property Induction

The extent to which we generalize a novel property from a sample of familiar instances to novel instances depends on the sample composition. Previous property induction experiments have only used samples consisting of novel types (unique entities). Because real-world evidence samples often contain redundant tokens (repetitions of the same entity), we studied the effects on property induction of adding types and tokens to an observed sample. In Experiments 1–3, we presented participants with a sample of birds or flowers known to have a novel property and probed whether this property generalized to novel items varying in similarity to the initial sample. Increasing the number of novel types (e.g., new birds with the target property) in a sample produced tightening, promoting property generalization to highly similar stimuli but decreasing generalization to less similar stimuli. On the other hand, increasing the number of tokens (e.g., repeated presentations of the same bird with the target property) had little effect on generalization. Experiment 4 showed that repeated tokens are encoded and can benefit recognition, but appear to be given little weight when inferring property generalization. We modified an existing Bayesian model of induction (Navarro, Dry, & Lee, 2012) to account for both the information added by new types and the discounting of information conveyed by tokens.     

Framing deductive reasoning with emotional content: An fMRI study

In the literature concerning the study of emotional effect on cognition, several researches highlight the mechanisms of reasoning ability and the influence of emotions on this ability. However, up to now, no neuroimaging study was specifically devised to directly compare the influence on reasoning performance of visual task-unrelated with semantic task-related emotional information.In the present functional fMRI study, we devised a novel paradigm in which emotionally negative vs. neutral visual stimuli (context) were used as primes, followed by syllogisms composed of propositions with emotionally negative vs. neutral contents respectively. Participants, in the MR scanner, were asked to assess the logical validity of the syllogisms. We have therefore manipulated the emotional state and arousal induced by the visual prime as well as the emotional interference exerted by the syllogism content.fMRI data indicated a medial prefrontal cortex deactivation and lateral/dorsolateral prefrontal cortex activation in conditions with negative context. Furthermore, a lateral/dorsolateral prefrontal cortex modulation caused by syllogism content was observed. Finally, behavioral data confirmed the influence of emotional task-related stimuli on reasoning ability, since the performance was worse in conditions with syllogisms involving negative emotions. Therefore, on the basis of these data, we conclude that emotional states can impair the performance in reasoning tasks by means of the delayed general reactivity, whereas the emotional content of the target may require a larger amount of top-down resources to be processed.     

Developing an Occupation-Centred Framework for Trauma Intervention

Abstract

Experiencing work-related trauma can negatively impact coping abilities and daily life participation. Occupational therapists (OTs) often provide health services to workers who have experienced trauma, including military members, veterans, and public safety personnel. The Occupational Therapy Trauma Intervention Framework (OTTIF) is a novel clinical reasoning framework that matches a client’s level of readiness to engage with a spectrum of evidence-based OT approaches. Using surveys at two time points, evaluation of therapist experiences of using the OTTIF elicited positive feedback that suggests the OTTIF provides a useful occupation-centred framework for evidence-informed occupational therapy practice with clients who have experienced trauma.     

Against Teleological Essentialism

In two recent papers, Rose and Nichols present evidence in favor of the view that humans represent category essences in terms of a telos, such as honey-making, and not in terms of scientific essences, such as bee DNA. Here, I challenge their interpretation of the evidence and show that it is directly predicted by the main theory they seek to undermine. I argue that their results can be explained as instances of diagnostic reasoning about scientific essences.