Some highs and lows of hylomorphism: on a paradox about property abstraction

Philosophical Studies - We defend hylomorphism against Maegan Fairchild’s purported proof of its inconsistency. We provide a deduction of a contradiction from SH+, which is the...     

The importance of differentiation in young children’s acquisition of expertise

In a short-term longitudinal study, stories told about novel creatures conveyed information varying in its capability for differentiating. Depending on the context, a bodily feature could be functionally undifferentiated (FUF), meaning that its subtypes (e.g., eyes of two forms) shared a generic function (“seeing”), or functionally differentiated (FDF), meaning that each subtype’s function was unique to it (e.g., only a “hooded eye” could “see in a sandstorm”). 5- to 6-year-olds who heard 8 stories, but not those who heard only 4, cited FDFs more than FUFs in a pair-justification test of judged similarity; and their delayed recall of specific story events was greater when FDFs rather than FUFs were involved. In the absence of direct instruction, young children show sensitivity to the degree of differentiation afforded by feature-function relations.     

Spontaneously hypertensive, Wistar Kyoto and Sprague-Dawley rats differ in their use of place and response strategies in the water radial arm maze

This study further characterises the use of mnemonic systems in the spontaneously hypertensive rat (SHR), which is frequently used as a rodent model of attention deficit hyperactivity disorder. The objective of this study was to assess the preference of male SHR, Wistar-Kyoto (WKY) and Sprague-Dawley (SD) rats for a place or response strategy when trained on an ambiguous T-maze task, and also to examine whether all strains acquired information about both strategies during ambiguous training, regardless of their preferred strategy. In the first experiment, SHR and WKY showed a preference for a response strategy on the ambiguous T-maze task; in contrast, SD displayed a preference for a place strategy. In the second experiment, all strains demonstrated that they learned information about both the response and place strategies during ambiguous training. However, on a conditioned place preference test SHR did not display as strong a preference for the place arm as WKY and SD. This finding supports previous research in a conditioned cue preference test, in which SHR did not display a preference for the cue associated with the platform. These observations that the strains differ with respect to behavioural strategy in a learning task suggest that they differ in the underlying neural circuitry that serves goal-directed behaviour, and are consistent with SHR having deficits associated with the nucleus accumbens.     

Brief motivational intervention with homeless adolescents: evaluating effects on substance use and service utilization.

A brief motivational intervention with 117 homeless adolescents was evaluated using a randomized design and 3-month follow-up. The intervention was designed to raise youths' concerns about their substance use, support harm reduction, and encourage greater service utilization at a collaborating agency. The study was designed to strengthen initial promising results of an earlier study (P. L. Peterson, J. S. Baer, E. A. Wells, J. A. Ginzler, & S. B. Garrett, 2006). Several modifications in the clinical protocol were included to enhance engagement with the intervention. Analyses revealed no significant benefits for intervention participants when homeless youths' substance use rates were compared with those of control participants. Service utilization during the intervention period increased for those receiving the intervention but returned to baseline levels at follow-up. Participants reported overall reductions in substance use over time. Differences between sampling methods for the current and previous study are discussed, as are the limitations of brief interventions with this population. Future research needs to elucidate mechanisms of change and service engagement for highly vulnerable youth.     

Concurrent and 2-year longitudinal relations between executive function and the behavior of 1st and 2nd grade children.

Abstract Concurrent and 2-year longitudinal relations were investigated between two indicators of children's ( n =60; mean age = years 11 months) executive function, inhibitory control and sequencing ability, and behavior problem symptomatology. Dependent measures were parent and teacher reported internalizing and externalizing behavior. Hierarchical multiple regression analyses demonstrated few significant concurrent associations between either inhibitory control or sequencing ability, and behavior problem symptoms. In contrast, baseline inhibitory control predicted decreased teacher reported externalizing, and parent reported externalizing and internalizing behavior problems over a 2-year period. Baseline sequencing ability also predicted decreased teacher reported externalizing and parent reported internalizing behavior over this same time period. Results suggest that some aspects of executive function in early elementary grade-school children may be more strongly associated with change in behavior over time than concurrent behavior. Implications of these findings for the prevention of behavior problems are discussed.     

Automatic stereotypes vs. automatic prejudice: Sorting out the possibilities in the weapon paradigm

Payne (2001) has documented that African-American faces automatically facilitate the categorization of handguns, relative to White faces. We suggest that these provocative results could derive from either the automatic activation of prejudice (negative evaluations) or the automatic activation of stereotypes (both positively and negatively valenced associations). In an extension of Payne’s procedure, we show that African-American faces facilitate the categorization of both handguns and sports-related objects, but not the categorization of insects or fruits. Additionally, both handguns and sports objects are more likely to be miscategorized following a White face prime than an African-American one. These results suggest that when perceivers are attempting to identify objects, automatic stereotypic associations, both positively and negatively valenced ones, are more influential than general negative sentiments towards African-Americans.     

Determinants of Money Management Behavior

Financial debt continues to rise, especially among college students, indicating a need for behavioral research to develop more effective money-management interventions. This study examined social psychological variables relevant to money management decision making among college students. Attitude, affect, perceived ability, and past experience were found to influence money-management behavior (i.e., maintaining a budget). We also examined an attitude model of money management and found 9 variables (e.g., normative influence, perceived barrier, perceived control) that determined attitudes toward maintaining a budget. The relevance of our findings to debt prevention is discussed.     

An investigation of the correlations between aggression,impulsiveness, social problem‐solving,and alcohol use

Impulsivity has been shown to predict aggression and heavy drinking in males, and poor social problem‐solving has been identified as a potential mediating variable in this relationship. We set out to investigate the inter‐relationships among impulsiveness, social problem‐solving, aggression, and alcohol use in a non‐offender sample of British males (N=70). Of our proposed relationships, only two were significant: higher impulsivity was related to poorer social problem‐solving, and poorer social problem‐solving was related to greater aggression. Combining impulsivity and social problem‐solving indicated that poor social problem‐solving, not impulsivity, was what exerted the influence over aggression in this sample. Impulsivity perhaps presents an obstacle to learning in the early developmental years, and the legacy of poor problem‐solving is what later contributes to aggression. Aggr. Behav. 28:439–445, 2002. © 2002 Wiley‐Liss, Inc.     

Consolidation,wider reflection,and policy: Response to ‘Super‐recognisers: From the lab to the world and back again’

Here, David Robertson and Markus Bindemann respond to a recent BJP Target Article on ‘super‐recognisers’ (SRs). They outline the need to consider human factors that could influence SR performance after selection and the need for a co‐ordinated effort to ensure best practice in the implementation of SRs in applied contexts.