Symmetry, Compact Closure and Dagger Compactness for Categories of Convex Operational Models

In the categorical approach to the foundations of quantum theory, one begins with a symmetric monoidal category, the objects of which represent physical systems, and the morphisms of which represent physical processes. Usually, this category is taken to be at least compact closed, and more often, dagger compact, enforcing a certain self-duality, whereby preparation processes (roughly, states) are interconvertible with processes of registration (roughly, measurement outcomes). This is in contrast to the more concrete “operational” approach, in which the states and measurement outcomes associated with a physical system are represented in terms of what we here call a convex operational model: a certain dual pair of ordered linear spaces–generally, not isomorphic to one another. On the other hand, state spaces for which there is such an isomorphism, which we term weakly self-dual, play an important role in reconstructions of various quantum-information theoretic protocols, including teleportation and ensemble steering. In this paper, we characterize compact closure of symmetric monoidal categories of convex operational models in two ways: as a statement about the existence of teleportation protocols, and as the principle that every process allowed by that theory can be realized as an instance of a remote evaluation protocol—hence, as a form of classical probabilistic conditioning. In a large class of cases, which includes both the classical and quantum cases, the relevant compact closed categories are degenerate, in the weak sense that every object is its own dual. We characterize the dagger-compactness of such a category (with respect to the natural adjoint) in terms of the existence, for each system, of a symmetric bipartite state, the associated conditioning map of which is an isomorphism.     

Emotional Reactions Before Examinations: II. Results of a Questionnaire

To evaluate the effect of session replication and the effect of the duration of the interval between sessions on CFF, three groups different in the methods of spacing sessions were tested for 10 sessions. A significant interaction effect was observed between interval durations and session replications. The group that was tested daily for five consecutive days showed a consistent elevation in threshold after the first two sessions, while the other two groups showed relatively uniform threshold scores over the 10 sessions.     

Overlooking the Obvious: Incentives to Lie

Over the years, people have searched for deception cues in the liar's behavior. However, the sender's incentives to lie might be more revealing than behavior. In Experiment 1, an incentive was developed that was predictive of lying. Judges with access to incentive information in addition to behavior achieved almost perfect lie/truth detection. This was not a result of the speakers' behavior being transparent (Experiment 2) but because incentive information was useful to separate lies from truths (Experiments 2 and 3). Experiment 3 revealed that people may forego perfectly diagnostic contextual cues to base their judgments on illusory behavioral cues.     

Emotional awareness,gender, and peculiar body-related beliefs

Research has broadly established that emotional disturbances are associated with body image disturbances. This is the first study to examine links between facets of emotional awareness and peculiar body-related beliefs (PBB), or beliefs about an imagined or slight defect in one's appearance or bodily functioning. In a sample of college students (n=216), we found that low emotional clarity (the extent to which the type and source of emotions are understood) was associated with higher PBB in both women and men, and the relation between emotional clarity and PBB was further moderated by attention to emotions (the extent to which emotions are attended to) and gender. Men with low attention to emotions and women with high attention to emotions both experienced higher levels of PBB if they also reported low levels of emotional clarity. This interactive effect was not attributable to shared variance with body mass index, neuroticism or affect intensity.     

Examining the contextual and temporal stability of perceptions of emotional utility

The present research examined the degree to which perceptions of emotional utility are stable across contexts and over time. Self-reported perceptions of emotional utility and actual experience of emotion were measured in two samples of college students. In Study 1, participants were presented with two different types of goals (independent vs. interdependent) and were asked to rate the degree to which they found different types of emotions (e.g., appreciation, pride) useful in each context. In Study 2, participants completed daily online questionnaires in which they responded to questions assessing perceptions of emotional utility and actual affect in relation to personal goals. As predicted, across both samples, perceived utility of specific types of emotions was found to be associated with specific types of goals. Importantly, perceived utility of emotion was also found to be a relatively stable individual difference variable, even after taking into account the actual experience of emotion.     

Links between neuroticism,emotional distress,and disengaging attention: Evidence from a single-target RSVP task

Anxiety and depression are often associated with attention control deficits, but few studies have explored whether neuroticism can account for these links. In the present study, undergraduate students (n=146) completed self-report measures of neuroticism, worry, anxious arousal, and anhedonic depression and also completed a visual attention task in which they were asked to identify a red target letter embedded within a rapid sequence of items. Neuroticism was associated with detection of the target when it was preceded by a distracter with which it shared a feature in common (a green letter). Specifically, these distracters produced longer attentional blinks in individuals with elevated levels of neuroticism. In contrast, target detection was not significantly associated with worry, anxious arousal, or anhedonic depression. We discuss the implications of this link between neuroticism and attention for cognitive models of emotional distress and disorders.     

A Review of: “Greenwald,R. (2009). Treating Problem Behaviors: A Trauma-Informed Approach.”

This single-case-design experiment examined an intervention to decrease bed-sharing in children, ages 2 through 6. Three sessions were conducted with each parent. At the first session, parents described bed-sharing history and began collecting baseline data. At the second session, parents were instructed to employ the intervention. At the third session, parents were interviewed and offered continued support, if needed. Participants included three children who slept with their parents 4 or more nights per week. The intervention resulted in a substantial decrease in bed-sharing behavior for all participants, and parents reported being satisfied with the intervention.