Pooling Modalities and Pointwise Intersection: Axiomatization and Decidability

Studia Logica - We establish completeness and the finite model property for logics featuring the pooling modalities that were introduced in Van De Putte and Klein (Pooling modalities and...     

Genetic moderation of sensitivity to positive and negative affect in marriage

Hypothesizing that genetic factors partially govern sensitivity to interpersonal cues, we examined whether a polymorphism (5-HTTLPR) in the serotonin transporter gene would moderate spouses' sensitivity to positive and negative partner affect. Before and after marital discussions, participants from 76 couples (total n = 150) reported their affective states. Spouses carrying the short allele of the 5-HTTLPR were more responsive to their partner's preinteraction positive affect and anxiety/nervousness, compared with spouses with two long alleles. These data support the contention that the serotonin system influences affective responses to social stimuli. In contrast to the view that the 5-HTTLPR primarily affects response to adverse experiences, these results suggest that this polymorphism moderates sensitivity to positive as well as negative affect.     

Alcohol as social lubricant.

This study examines how consuming alcohol differentially affects the communicative behavior and perceptions of high and low social self‐esteem (SSE) women as they engage in a brief interaction with a flirtatious male. Alcohol myopia theory proposes that alcohol affects behavior when it blocks a person's normal inhibitions about enacting a behavior. It was predicted that low SSE women would be more inhibited when talking to a flirtatious male than would high SSE women and, therefore administration of a social self‐esteem measure and random assignment to an alcoholic or nonalcoholic beverage condition, participants (N=50) talked with an attractive, flirtatious male confederate. Low SSE women were less anxious and self‐disclosed more when drinking than when sober, whereas high SSE women were not significantly affected by alcohol consumption. The discussion highlights the complex and often contradictory effects of alcohol consumption on social interaction.     

From Oughts to Goals: A Logic for Enkrasia

This paper focuses on (an interpretation of) the Enkratic principle of rationality, according to which rationality requires that if an agent sincerely and with conviction believes she ought to X, then X-ing is a goal in her plan. We analyze the logical structure of Enkrasia and its implications for deontic logic. To do so, we elaborate on the distinction between basic and derived oughts, and provide a multi-modal neighborhood logic with three characteristic operators: a non-normal operator for basic oughts, a non-normal operator for goals in plans, and a normal operator for derived oughts. We prove two completeness theorems for the resulting logic, and provide a dynamic extension of the logic by means of product updates. We illustrate how this setting informs deontic logic by considering issues related to the filtering of inconsistent oughts, the restricted validity of deontic closure, and the stability of oughts and goals under dynamics.

     

Extending JAGS: A tutorial on adding custom distributions to JAGS (with a diffusion model example)

We demonstrate how to add a custom distribution into the general-purpose, open-source, cross-platform graphical modeling package JAGS (“Just Another Gibbs Sampler”). JAGS is intended to be modular and extensible, and modules written in the way laid out here can be loaded at runtime as needed and do not interfere with regular JAGS functionality when not loaded. Writing custom extensions requires knowledge of C++, but installing a new module can be highly automatic, depending on the operating system. As a basic example, we implement a Bernoulli distribution in JAGS. We further present our implementation of the Wiener diffusion first-passage time distribution, which is freely available at https://sourceforge.net/projects/jags-wiener/.     

Stability and change in the first 10 years of marriage: does commitment confer benefits beyond the effects of satisfaction?

Although commitment is theoretically distinct from relationship satisfaction, empirical associations between the concepts are high. After drawing from classic definitions of commitment to distinguish between commitment as the desire for a relationship to persist versus the behavioral inclination to maintain the relationship, we predicted that the former component would function much like satisfaction, whereas the latter component would operate independently of satisfaction to stabilize couple relationships. Using satisfaction and commitment data collected over the first 4 years of marriage (N = 172 couples), we demonstrate that only behavioral inclinations to maintain the marriage are related to observed marital interaction behaviors, to reported steps taken toward dissolution, and to 11-year divorce rates, independent of satisfaction. Consistent with dyadic "weak-link"' conceptions of commitment, likelihood of divorce was found to increase as a function of the lower of the 2 partners' inclination to maintain the relationship. Commitment may stabilize declining intimate partnerships, particularly when it is conceptualized as the inclination to maintain the relationship. (PsycINFO Database Record (c) 2012 APA, all rights reserved).