An Attractor Model of Lexical Conceptual Processing: Simulating Semantic Priming

An attractor network was trained to compute from word form to semantic representations that were based on subject-generated features. The model was driven largely by higher-order semantic structure. The network simulated two recent experiments that employed items included in its training set (McRae and Boisvert, 1998). In Simulation 1, short stimulus onset asynchrony priming was demonstrated for semantically similar items. Simulation 2 reproduced subtle effects obtained by varying degree of similarity. Two predictions from the model were then tested on human subjects. In Simulation 3 and Experiment 1, the items from Simulation 1 were reversed, and both the network and subjects showed minimally different priming effects in the two directions. In Experiment 2, consistent with attractor networks but contrary to a key aspect of hierarchical spreading activation accounts priming was determined by featural similarity rather than shared superordinate category. It is concluded that semantic-similarity priming is due to featural overlap that is a natural consequence of distributed representations of word meaning.     

Divorce mediation: the impact of mediation on the psychological well‐being of children and parents

This study evaluated levels of psychological distress experienced by children (aged 4–16) and parents at the beginning of and one month after mediation for child‐related disputes. In contrast to previous research, this study employed both child‐ and parent‐reports of child outcome. Mediation was associated with reductions in child‐reported, though not parent‐reported, child psychological distress and with reductions in parent‐reports of their own psychological distress. The negotiation of successful agreements in mediation was not related to improved psychological well‐being of family members. The difficulties encountered (i.e. small numbers, low response rate) render the results tentative. Implications of the findings for future research are discussed. Copyright © 1999 John Wiley & Sons, Ltd.     

Epistemological Disjunctivism and Introspective Indiscriminability

Philosophia - According to Duncan Pritchard’s Philosophical Issues, 21(1), 434–455, (2011, 2012, 2015)version of epistemological disjunctivism, in paradigm cases of perceptual...     

Market Testing and Market Policing: Illuminating the Fluid micro-Sociology of the Illegal Drug Supply Enterprise in Liquid Modernity

Understanding Scotland’s illegal drug market continues to challenge social scientists. Most evidently neglected are processes related to social supply, from supplier perspectives. When analyzing illegal drug markets, demand-based approaches, customarily sourcing drug users, grossly overlook supplier perspectives. Thus, a qualitative research inquiry interviewing former drug dealers facilitated exploration of a supply-based approach that detailed processes of supply in relation to market level. Situating the findings within the disruptive lens of Chatwin and Potters’ (2014) concept of extending drug use normalization to embrace a dimension of market fluidity to drug supply dealing in Scotland, the researchers interviewed 35 former drug suppliers, learning about drug distribution behavioral patterns. Retail-level dealerships and higher market echelons exemplified an embodiment of the complexity of this social world. Any model aimed at characterizing Scotland’s illegal drugs market must acknowledge and incorporate aspects of social supply (e.g., recreational drugs) and recognize the fluid nature of “normalization,” taking account into its tacit embeddedness in a “local economy” with its own history and distinctive cultural geography. Unless the nuances of these various social formations are acknowledged, the potential of national policing strategies to address the crimes connected with drugs will go unrealized due to their conceptual and pragmatic inadequacies. It is ironic that a commitment to a generalized drug market conception of official enforcement is likely to sow the seeds for an unnecessary criminalization of minor serendipitous offenders and encourage reoffending patterns.     

On Staying in Character: Virtue and the Possibility of Deep Disagreement

The concept of deep disagreement is useful for highlighting skills and resources required for reasons-giving to be effective in restoring cooperative or joint action. It marks a limit. When it is instead understood as a challenge to be overcome by using reasons, it leads to significant practical, theoretical, and moral distortions.

     

On the Psychological Function of Nationalistic “Whitelash”

A noticeable feature of the political discourse accompanying the rise of nationalism in white‐majority countries is that white people fare worse than other ethnic groups in their societies. However, it is unclear based on the extant literature why group‐based relative deprivation (GRD) would correlate with majority‐group nationalism. Here, we propose that the psychological function of nationalism for majority‐group members lies in its ability to assuage the negative feelings arising from GRD. Accordingly, in a New Zealand national probability sample (N = 15,607), we found that GRD among whites was negatively associated with well‐being. However, we also found an opposing indirect association mediated by nationalism. GRD was associated with higher nationalism, which was in turn associated with higher well‐being. These findings suggest that endorsing beliefs about national superiority is one way a nation’s dominant ethnic group can cope with the negative psychological consequences of perceiving that their group is deprived.     

Decision making in the prisoner's dilemma game: The effect of exit on cooperation and social welfare

The prisoner's dilemma game is a mixed‐motive game that offers two players the simultaneous choice between a cooperative and a defective alternative. An often neglected aspect of such a binary‐choice game, however, is that in many real‐life encounters, people can choose not only to cooperate or defect, but they also have a third option: to exit the social dilemma. Although in the literature a consensus has emerged that the addition of an exit opportunity benefits cooperation, there is only scant research into its effect on social welfare. In order to allow a direct comparison of cooperation rates and welfare levels across binary‐choice and trinary‐choice games, in this study, we used a design in which the same participants played similar games with and without an exit option (i.e., a within‐subjects design), and this in a range of structural variations. The findings of our study indicated that the aggregated outcome of both players is generally lower in games with an exit option than in games without an exit option. Moreover, our results showed that the efficiency of the exit option strongly depends on the specific outcome structure of the game (in terms of its endowment size, (a)symmetry, and level of noncorrespondence). In the discussion, it is argued that the implementation of an exit option as a strategy to increase social welfare should be critically assessed.     

Cognitive predictors of parent-rated inattention in very preterm children: The role of working memory and processing speed

Inattention is one of the most common neurobehavioral problems following very preterm birth. Attention problems can persist into adulthood and are associated with negative socio-emotional and educational outcomes. This study aimed to determine whether the cognitive processes associated with inattention differ between term-born and very preterm children. Sixty-five children born very preterm (<33+0 weeks’ gestation) aged 8–11 years were recruited alongside 48 term-born controls (?37 20 +0 weeks’ gestation). Both groups included children with a wide spectrum of parent-rated inattention (above average attention to severe inattention) measured as a continuous dimension using the Strengths and Weaknesses of ADHD and Normal-Behavior (SWAN) scale. The children completed tests to assess basic cognitive processes and executive function. A hierarchical multiple regression analysis was implemented to assess which neurocognitive processes explained variance in parent-rated inattention and whether these differed between preterm and term-born children. In both groups, poorer verbal and visuospatial short-term memory and poorer visuospatial working memory independently explained variance in parent-rated inattention. Slower motor processing speed explained variance in inattention among very preterm children only. The cognitive mechanisms associated with parent-rated inattention were predominantly overlapping between groups, but relationships between motor processing speed and inattention were unique to very preterm children. These associations may reflect risk factors for inattention in term and very preterm children. Future research should assess the efficacy of these cognitive processes as potential targets for intervention