Emotion recognition of facial expressions in adults with attention deficit hyperactivity disorder / Reconocimiento de emociones de expresiones faciales en adultos con trastorno de hiperactividad con déficit de atención

Various studies have indicated that children with ADHD have difficulties with the facial interpretation of affect. Research in the adult ADHD population overall is scarce. The present study explores how adults with ADHD react to a simple attention task and an emotion-containing task. Thirty adults clinically diagnosed with ADHD and 30 non-ADHD controls completed a computer-based task through a set of facial expressions standardized for Chile. The task was composed of two parts: first, a simple attention task with facial expressions; and second, a facial expression-labelling task. Reaction Time (RT) and Accuracy (Acc) of responses were evaluated. Participants with ADHD responded significantly faster and were significantly less accurate in both tasks compared to controls. Across both groups, emotion-specific errors increased in the facial expression of anger. Additionally, the ADHD group was significantly faster in responding for anger, but not for happiness or neutral expressions. Impulsivity commonly associated with ADHD may account for faster RT and lower Acc. Moreover, happiness may be more pleasant to identify than anger. These results are consistent with studies that have recorded greater Acc for positive emotions in comparison with negative emotions.     

Measuring and modeling salience with the theory of visual attention

For almost three decades, the theory of visual attention (TVA) has been successful in mathematically describing and explaining a wide variety of phenomena in visual selection and recognition with high quantitative precision. Interestingly, the influence of feature contrast on attention has been included in TVA only recently, although it has been extensively studied outside the TVA framework. The present approach further develops this extension of TVA’s scope by measuring and modeling salience. An empirical measure of salience is achieved by linking different (orientation and luminance) contrasts to a TVA parameter. In the modeling part, the function relating feature contrasts to salience is described mathematically and tested against alternatives by Bayesian model comparison. This model comparison reveals that the power function is an appropriate model of salience growth in the dimensions of orientation and luminance contrast. Furthermore, if contrasts from the two dimensions are combined, salience adds up additively.     

Visual attention and the mechanism of metacontrast

The U-shaped metacontrast function may result from the superimposition of two monotonic components which reflect the effects of mechanisms similar to the peripheral and central processes suggested for backward pattern masking by Turvey (Psychol Rev 80:1–52, 1973). In an experiment using the disc-ring paradigm, it was demonstrated that the decreasing and increasing branches of the metacontrast function are differently affected by the exposure duration of the mask and a task-irrelevant stimulus (distractor) appearing in the contralateral visual hemifield. The phenomenal representation of masking is different for the two parts of the curve. It is suggested that masking in the second part of the masking function, but not in the first, is related to the control of visual attention.     

Experiments on the Fehrer–Raab effect and the ‘Weather Station Model’ of visual backward masking

The Fehrer–Raab effect (simple reaction time is unaffected by metacontrast masking of the test stimulus) seems to imply that a stimulus can trigger a voluntary reaction without reaching a conscious representation. However, it is also possible that the mask triggers the reaction, and that the masked test stimulus causes a focussing of attention from which processing of the mask profits, thus reaching conscious representation earlier. This is predicted by the Weather Station Model of visual masking. Three experiments tested this explanation. Experiment 1 showed that the masked test stimulus caused a temporal shift of the mask. Experiment 2 showed that the reaction in the Fehrer–Raab effect was not exclusively triggered by a conscious representation of the test stimulus: the mask was involved in evoking the reaction. Experiment 3 again revealed a temporal shift of the mask. However, the shift was only about half as large as the Fehrer–Raab effect. The psychometric functions suggested that the observers used two different cues for their temporal order judgments. The results cast doubts on whether judged temporal order yields a direct estimate of the time of conscious perception. Some methodological alternatives are discussed.     

Effect Size Strengths in Subjective Well-Being Research

Subjective well-being (SWB) research is characterized by many large samples, which often results in virtually all variables being significantly related to well-being, even if the associations are small. In this article we explore the strengths of associations between various predictors and SWB outcomes. In addition to standard effect-size statistics, we also examined the range of the SWB scale covered in the distribution of the predictor, allowing us to estimate the strength of influence of each variable, independent of variability in the sample. We analyzed just a few variables to illustrate what our approach reveals. Our analyses included a representative sample of both the world and the United States, and our data included three types of SWB (life satisfaction (LS), positive affect (PA), and negative affect (NA)). The largest effect sizes emerged for societal characteristics, such as between-nations differences, as well as personal characteristics, such as perceived social support. Small or very small effect sizes were consistently found for demographic characteristics, such as sex, age, and marital status. Other effect sizes varied by the type of SWB being considered. For example, income resulted in a large effect size for LS, but small to medium effect sizes for PA and NA. We suggest that when scholars report and interpret the associations of predictor variables with SWB, they consider the strengths of their significant associations.

     

The spatial distribution of attention in perceptual latency priming

The spatial distribution of visual attention is a yet unresolved question. One of the main topics is whether attention is distributed in a graded fashion around an attended location (e.g., Downing, 1988; Zimba & Hughes, 1987). The present experiments explore whether, and on which conditions, gradients of attention arise and contribute to perceptual facilitation. A masked or unmasked prime precedes one of two targets whose temporal order has to be judged. The prime captures attention, which shortens the perceptual latency of the primed target (perceptual latency priming; Scharlau & Neumann, 2003a; Shore, Spence, & Klein, 2001). No strong evidence for an attentional gradient was found. (1) Accuracy of temporal order judgements was independent of the distance between the two targets that were judged. That is, facilitation of the second target by the first target was spatially invariant. (2) With targets of short duration, facilitation was independent of prime-target distance. (3) With targets of long duration, gradients were found: Facilitation declined continuously with distance. Thus, long duration of stimuli may be a sufficient precondition for an attentional gradient. A control experiment showed that object-based attention contributes only marginally to perceptual latency priming.     

Montaigne: The Embodiment of Identity as Grounds for Toleration

Res Publica - One of the most important issues today is the conflict between identity groups. Can the concept of toleration provide resources for thinking about this? The standard definition of...     

Disgust and psychopathological symptoms in a nonclinical sample

There is little doubt that disgust sensitivity plays a role in the development of small animal phobias. However, it has been suggested that the basic emotion of disgust is implied in a broad range of psychopathological conditions. The present study examined the relationship between disgust sensitivity and symptoms of phobias (other than animal phobias), obsessive–compulsive disorder, depression, and eating disorder in a nonclinical sample. Undergraduate psychology students were asked to complete the Disgust Sensitivity Questionnaire, as well as measures of phobic (Fear Questionnaire), obsessive–compulsive (Maudsley Obsessive–Compulsive Inventory), depressive (Beck Depression Inventory), and eating disorder (Restraint Scale) symptomatology. Results showed that disgust sensitivity was only related to symptoms of agoraphobia and obsessive–compulsive disorder. The present findings cast doubts on the idea that disgust sensitivity is a central factor underlying a broad range of psychopathological conditions.     

Independently Licensed Counselors' Work Values

Prospective clinical mental health counseling students need to know if their work values align with those of independently licensed counselors before investing their time and accumulating debt. Analyzing the work values of 463 independently licensed counselors in the United States, we found 89% expressing social (altruistic) work values and 22% expressing intrinsic work values. Independently licensed counselors want to help clients become fully functioning and self-actualized by maintaining unconditional positive regard, being congruent, and providing empathy. Clarifying these work values and their interaction can help prospective and current clinical mental health counseling students determine their future job role.