Game Logic is Strong Enough for Parity Games

We investigate the expressive power of Parikh's Game Logic interpreted in Kripke structures, and show that the syntactical alternation hierarchy of this logic is strict. This is done by encoding the winning condition for parity games of rank n. It follows that Game Logic is not captured by any finite level of the modal -calculus alternation hierarchy. Moreover, we can conclude that model checking for the -calculus is efficiently solvable iff this is possible for Game Logic     

The Moral Contours of Empathy

Morally contoured empathy is a form of reasonable partiality essential to the healthy care of dependents. It is critical as an epistemic aid in determining proper moral responsiveness; it is also, within certain richly normative roles and relationships, itself a crucial constitutive mode of moral connection. Yet the achievement of empathy is no easy feat. Patterns of incuriosity imperil connection, impeding empathic engagement; inappropriate empathic engagement, on the other hand, can result in self-effacement. Impartial moral principles and constraints offer at best meager protection against these perils, and hence serve poorly in securing morally contoured empathy. More nuanced and practical guidance should be sought in normatively substantive conceptions of our roles and relationships and their defining moral stakes. These, joined with more abstract moral tools, can facilitate rich, narratively textured interpretations of moralitys demands. While the content of our normative conceptions must be continually debated, engaging in this debate is vital to the achievement of proper empathy, and thus to effective, respectful, morally healthy care of dependents.This paper was originally presented at the conference on Reasonable Partiality at the Vrije Universiteit, Amsterdam, October 22–24, 2003. I wish to thank all those present for stimulating discussion. Special thanks go to Bert Musschenga, who organized the conference, and who has provided insightful feedback on this paper. Warm thanks as well to Brenda Almond and Bernie Rollin for lively exchanges on the issues addressed here and to Nancy Sherman for sharing with me an ongoing fascination with, and her own fantastic work on, empathy. Comments from an anonymous reviewer for the journal were challenging and helpful. Finally, I wish to express gratitude beyond normal bounds to Maggie Little both for her generosity, keen insight, and artful intervention at key points in this essays evolution and for her ground-breaking work on deontic pluralism that deeply influences the position I frame here.     

Intensity of positive and negative emotions: Explaining the association between personality and depressive symptoms

The aim was to examine to what extent emotional intensity accounted for associations between the Big Five personality dimensions and depressive symptoms. Study 1 tested the model cross-sectionally, using survey data of 266 Dutch social science students. Study 2 experimentally examined how personality dimensions were related to emotional reactivity after exposure to various emotional stimuli. Dutch psychology students (N = 130) reported on their personality and viewed an amusing or sad film clip, after which the change in intensity of experienced positive and negative emotions was assessed. Individuals scoring higher on neuroticism generally experienced more intense negative emotions, through which they experienced a higher level of depressive symptoms. Individuals who were more agreeable experienced a lower level of depressive symptoms indirectly through higher general intensity of positive emotions. More agreeable individuals showed stronger increase in negative emotions and stronger decrease in positive emotions, though after exposure to the sad stimulus only. Although replication is needed, our results offer empirical support for a more taylor-made approach in decreasing nonclinical depressive symptoms taking into account both personality characteristics and emotion regulation.     

Indirect scaling methods for testing quantitative emotion theories

Two studies investigated the utility of indirect scaling methods, based on graded pair comparisons, for the testing of quantitative emotion theories. In Study 1, we measured the intensity of relief and disappointment caused by lottery outcomes, and in Study 2, the intensity of disgust evoked by pictures, using both direct intensity ratings and graded pair comparisons. The stimuli were systematically constructed to reflect variables expected to influence the intensity of the emotions according to theoretical models of relief/disappointment and disgust, respectively. Two probabilistic scaling methods were used to estimate scale values from the pair comparison judgements: Additive functional measurement (AFM) and maximum likelihood difference scaling (MLDS). The emotion models were fitted to the direct and indirect intensity measurements using nonlinear regression (Study 1) and analysis of variance (Study 2). Both studies found substantially improved fits of the emotion models for the indirectly determined emotion intensities, with their advantage being evident particularly at the level of individual participants. The results suggest that indirect scaling methods yield more precise measurements of emotion intensity than rating scales and thereby provide stronger tests of emotion theories in general and quantitative emotion theories in particular.     

Finding happiness in negative emotions: An experimental test of a novel expressive writing paradigm

Positive emotions are evoked on seeing one's favorite person. To investigate the psychological and physiological responses accompanying these positive emotions, we simultaneously recorded various parameters such as the mood state, heart rate, skin conductance level (SCL), serum levels of catecholamines, and proportions of T cells and natural killer (NK) cells among the lymphocytes while participants viewed films featuring their favorite persons. The participants reported that they felt better and invigorated; in addition, SCL and proportion of NK cells in peripheral blood increased significantly, and these physiological changes were positively correlated. These results suggest that positive emotions elicited on seeing a favorite person may lead to psychological and physiological activation and, more importantly, may promote health.

A cheerful heart is good medicine, but a crushed spirit dries up the bone (Proverbs 17 : 22; New International Version)     

Ipsilateral Loudness Adaptation Over Multiple Intensity Levels

Three mirror tracing experiments were conducted to investigate the connection between perception and motor behavior. In the first experiment, some subjects traced a hex-maze, other subjects traced a hex-maze after observing a model trace, others traced a hex-maze after reading instructions on mirror images, and others traced a hex-maze after having observed a model and heard the instructions. There were no significant differences between the groups' error scores, but their time scores differed significantly, although not always in the predicted direction. In Experiment 2, the subjects were to trace selected letters of the alphabet. Error scores for the second experiment did not differ much from those for the first experiment. In Experiment 3, the experimenter gave each subject commands for the correct directions of movement, using the subject's body as a frame of reference. There was little improvement in motor performance. These results suggest that the visual information presented in the mirror captured the subjects' attention and blocked their motor tracing program.     

The illusion of nonmediation in telecommunication: Voice intensity biases distance judgments to a communication partner

The illusion of nonmediation is an experience in mediated communication where individuals respond as if the medium is not there. It is frequently associated with advanced media technology, such as virtual environments and teleconference systems. In this paper, we investigate whether people experience an illusion of nonmediation during interactions as simple as making a phone call. In three experiments, participants were asked to listen to someone's voice on a mobile phone (Experiment 1) or through VoIP software (Experiment 2 and 3) before guessing the location of the person and indicating this location on a map. Results consistently demonstrated that louder voices were judged to be closer, as if the technical mediation was ignored. Combining the three experiments, a small-scale meta-analysis yielded an effect size estimate of d = 0.37 for the ‘louder-as-closer’ effect. Implications of the results and suggestions for future research are discussed.     

Emotion valence,intensity and emotion regulation in immigrants and majority members in the Netherlands

We were interested in interethnic differences and similarities in how emotion regulation strategies (reappraisal, suppression and social sharing) can be predicted by emotion valence and intensity. The sample consisted of 389 Dutch majority members and members of five immigrant groups: 136 Turkish and Moroccan, 105 Antillean and Surinamese, 102 Indonesian, 313 Western and 150 other non‐Western immigrants. In a path model with latent variables we confirmed that emotion regulation strategies were significantly and similarly related to emotion valence and intensity across the groups. Negative emotions were more reappraised and suppressed than positive emotions. Intensity was positively related to social sharing and negatively related to reappraisal and suppression. The Dutch majority group scored higher on emotion valence than Turkish and Moroccan immigrants. Also, the Dutch majority group scored lower on reappraisal than all non‐Western groups, and lower on suppression than Turkish and Moroccan immigrants. We conclude that group differences reside more in mean scores on some components than in how antecedents are linked to regulation strategies.     

Talking about daily emotional events: Psychological well-being moderates the intensity–disclosure link

The intensity of distressing events predicts people’s disclosure of those events at between-person and within-person levels. Depression symptoms seem to attenuate the within-person relation, but past research has not taken a multidimensional view of depression as a moderator. The authors tested whether two constructs related to depression-general psychological well-being and life satisfaction-account for depression’s moderating effects. In a daily diary study, college students (N = 116) rated the intensity of the day’s most unpleasant event and their disclosure of the event each day for 14 days. Participants completed measures of disclosure tendencies, depression symptoms, well-being, and life satisfaction prior to the diary portion of the study. Multilevel modeling analyses revealed moderating effects of disclosure tendencies and depression on the within-person intensity–disclosure relation. However, when psychological well-being and life satisfaction were entered, depression was no longer a significant moderator, but well-being was. Psychological well-being therefore determines the expression of individual differences in the disclosure of daily emotional events.     

Utilizing Creative Expressive Techniques and Group Counseling to Improve Adolescents of Divorce Social-Relational Capabilities

Adolescents of divorce present challenges for mental health counselors unfamiliar with issues this population encounters. Problems such as negative societal perceptions and low behavioral self-efficacy can combine, causing long-lasting problems. Specifically, adolescents of divorce appear to be at risk for developing inadequate social/relational capabilities. To improve adolescents’ relational and social competencies, the authors advocate for a creative combination of expressive techniques and group counseling. This brief, six-week intervention may be a viable, creative tool for counselors working with this distinct client population.