Angellic Content

I provide a truthmaker semantics for Angell’s system of analytic implication and establish completeness.     

A difficulty for the possible worlds analysis of counterfactuals

I present a puzzle concerning counterfactual reasoning and argue that it should be solved by giving up the principle of substitution for logical equivalents.     

Believers and Skeptics: Where Social Worker Situate Themselves Regarding the Code of Ethics

Based on individual and focus-group interviews, this article describes how social workers in a variety of settings and geographical areas within Ontario approached ethical issues in their daily practices. Two primary approaches to professional ethics emerge from the data: principle based and virtue based, reflecting the orientation of groups we label believers and skeptics, respectively. The code of ethics appears to be the fulcrum from which our participants swing. The believers show faith in the code of ethics and the skeptics are dubious that codes are necessarily in the best interests of clients. The article describes the thinking behind the actions of the believers and skeptics and explores possibilities for future practice and research with respect to decision-making regarding ethical issues in the social work profession.     

Distinguishing between the precision of attentional localization and attentional resolution

Attentional resolution is a construct that refers to the minimal separation that allows one stimulus to be attended separately from nearby stimuli. The attentional walk task, which requires a series of covert shifts of attention within variably dense arrays of stimuli, was introduced as a method of measuring attentional resolution. Using a cuing task, we show that individual items within arrays that are too dense to support an attentional walk can nonetheless be attended. We note that the precision with which attention can be localized is, in principle, a limitation separate from attentional resolution and conclude that performance in the attentional walk task is better suited for measuring this limitation than for measuring attentional resolution per se.     

Why aggression?2

On the basis of a formalised view of metapsychology, the author briefly considers the problems inherent in the Freudian notion of a death drive or aggressive drive and then goes on to develop a new theoretical conception of aggression. Aggression is understood as an affect, action or affective action and, in relation to these, as an expression of the intensity with which a drive'whether it be the sexual drive with its libidinal cathexes or the self‐preservative drive with its lethic cathexes'seeks to attain its object. In this context the author regards the regulation of closeness and distance with respect to the ‘psychogeometric locus’ of the relevant drive object as being of central importance. She contends that neurotic personalities suffer from specific distortions in the perception of the psychogeometric locus of their drive objects, which may give rise to an intensification of the drive tendencies prevailing in these individuals at any given time so that these tendencies take on an aggressive character. The author presents two clinical vignettes to show how her approach allows aggression and its occurrence to be conceptualised without resorting to the idea of a primary aggressive drive, and draws attention to the resulting technical consequences for interpretation.     

Verbal and nonverbal predictors of executive function in early childhood

The study of executive function (EF) has become increasingly popular in multiple areas of research. A wealth of evidence has supported the value of EF in shaping notable outcomes across typical and atypical development; however, little evidence has supported the cognitive contributors to early EF development. The current study used data from a large longitudinal sample of healthy children to investigate the differential influence of verbal and nonverbal cognition on later EF. Participants were assessed at 2 years of age using the Mullen Scales of Early Learning, and Mullen scores were used to calculate nonverbal and verbal developmental quotients. Executive function was measured at 6 years using assessments from the Stanford-Binet, Cambridge Neuropsychological Test Automated Battery, and the Behavior Rating Inventory of Executive Function. Results suggested that early nonverbal cognition was a better predictor of 6-year EF as measured by task-based laboratory assessments, whereas verbal cognition was a better predictor of parent-reported EF. Findings are discussed in regard to EF development and characteristics of EF measurement.