When affective cues broaden thought: Evidence from event-related potentials associated with identifying emotionally expressive faces

Divergent theoretical perspectives predict that the valence of affective cues impacts the breadth and flexibility of cognition, but extant data have not clarified whether such effects transpire extemporaneously or only later via processes of evaluation or selection from among thoughts already generated. The present investigation found more prominent electro-cortical event-related-potential (P3) responses among participants focused on identifying a positively valenced social target (an individual with a happy facial expression) than a negatively valenced social target (an individual with a disgusted facial expression). Indeed, even obvious non-targets (scrambled faces) evoked more-prominent P3 responses among participants in the happy-target than the disgusted-target condition, thereby implicating an effect of the valence of affective cues on the extent of cognitive processing as it unfolds.     

Body and meaning

Abstract

This paper discusses the very important but disregarded theme of somatization. Somatizers comprise a wide-ranging group of patients, who normally choose to consult doctors rather than psychoanalysts for treatment. We present two clinical reports of somatizing patients in which the psychoanalyst played a considerable role in the study and treatment of their problems. The subjects were not only totally relieved of their physical symptoms, but also dramatically changed their psychic lives.     

Perceptual organization and artificial attention for visual landmarks detection

In biological vision systems, attention mechanisms are responsible for selecting the relevant information from the sensed field of view, so that the complete scene can be analyzed using a sequence of rapid eye saccades. In recent years, efforts have been made to imitate such attention behavior in artificial vision systems, because it allows optimizing the computational resources as they can be focused on the processing of a set of selected regions. In the framework of mobile robotics navigation, this work proposes an artificial model where attention is deployed at the level of objects (visual landmarks) and where new processes for estimating bottom-up and top-down (target-based) saliency maps are employed. Bottom-up attention is implemented through a hierarchical process, whose final result is the perceptual grouping of the image content. The hierarchical grouping is applied using a Combinatorial Pyramid that represents each level of the hierarchy by a combinatorial map. The process takes into account both image regions (faces in the map) and edges (arcs in the map). Top-down attention searches for previously detected landmarks, enabling their re-detection when the robot presumes that it is revisiting a known location. Landmarks are described by a combinatorial submap; thus, this search is conducted through an error-tolerant submap isomorphism procedure.     

Disorganized Narratives: Problems In Treatment And Therapist Intervention Hierarchy

The way in which patients tell therapists their stories has an impact on treatment. They try to put their emotions and the events generating them, their goals and the behavior they adopt to achieve them, and so on, together in a coherent discourse. But some patients fail in organizing their narratives. They might describe a diffuse arousal without letting the reasons for their discomfort be known, switch from one subject to another without any apparent connection, or pile up one topic after another, thus overwhelming a listener, who is unable to see which is the main one. We call such narratives disorganized. They do not help a patient to make sense of experience or achieve consistency in behavior. A therapist listening has difficulty in planning treatment and often reacts negatively to such patients. Here we propose a series of interventions aimed at improving narrative coherence, creating a sound therapeutic relationship and making treatment effective. We will describe the therapy with a seriously dissociated patient in which this intervention has proven useful.     

Introduction: The Meaning of Work

Abstract

The theme of this special issue is how cultural, societal, group, and individual factors shape what working has meant, means, and is going to mean in future societies. Concepts and empirical data from the Meaning of Working study (MOW, 1987), an eight-country comparison of work-related attitudes and values, and from complementary follow-up studies, serve as the “red thread” or empirical basis throughout the issue. The original MOW (1987) study and some of the follow-up studies reported in this issue are based on a heuristic model for the subjective meaning of work, which is briefly discussed in the first paper by Ruiz Quintanilla and Wilpert. However, as nearly all of the discussants point out, and Heller's paper tries to discuss specifically, there is still a lot of theoretical work to do. The studies reported in this issue provide some empirical data bases and point towards new and crucial questions that are raised by the results. On the other hand, this issue also wants to contribute to a focused discussion about alternative conceptions of the meaning of work and its central role in understanding the concept of work. Since the way we conceptualize a particular problem issue crucially determines the kind of answers and explanations we derive, as Brief points out in his discussant paper, a thorough and lively discussion about how we are to understand work (and “non-work”), what meaning it has in a person's life, what significance the meaning attributed to work has, and by what processes work attains its meaning for society in general, becomes of utmost importance. Moreover, in the light of European integration across cultures and the global internationalization of organizations, differences in cultural contexts for the meaning of work take on a particularly urgent problem for better understanding. Finally, Fineman in his discussant paper raises the crucial point, that the basic epistemological assumptions that guided both the basic conceptual framework and the methodology used in the MOW (1987) and the follow-up studies reported in this issue can be questioned. He argues that these assumptions allow only a rather restricted view of the meaning of work and forego many options in addressing more holistic perspectives of work and its meaning generating processes. Given the fact that meaning is in principle a product of subjective interpretation processes, the question about what social processes form the basis for the meaning of work and its consequences, as well as what epistemological assumptions make sense in trying to understand better the holistic nature of work and its meaning, must be finally addressed.

In this sense this issue attempts: (1) to contribute to the ongoing debate on the concept of meaning of work; as well as (2) to invite interested researchers and practitioners in W & 0 psychology to join in this debate. This journal strongly encourages such a debate and will publish quality rejoinders, commentaries, and critical alternatives to the problems raised in this special issue.     

Drug Therapy of Post-Stroke Aphasia: A Review of Current Evidence

This review considers the role of drug therapy in the treatment of post-stroke aphasia, the evidence for efficacy of different agents, and the theory-based explanations of drug-related benefits for aphasia rehabilitation. Pharmacological interventions modulating stroke-induced disruption of diverse neurotransmitters may improve language and communication deficits in aphasic patients through facilitation of brain plasticity and long-term potentiation. However, benefits are not evident for all compounds and refinement in clinical trial designs is required. Some pharmacological trials have failed because drug treatment was not combined with speech-language therapy, while other trials combining drugs with intensive model-driven therapies also failed probably because of short-trial duration, inadequate sample selection, or lack of drug action. Preliminary data reveals that combining neuroscience-based intensive aphasia techniques (constraint-induced aphasia therapy) and drugs acting on cholinergic and glutamatergic neurotransmitter systems are associated with better outcomes than other strategies and long-term maintenance of benefits. Although further studies are needed, current state of the evidence suggests that drug therapy may play a key role in the treatment of post-stroke aphasia.     

Power laws from individual differences in learning and forgetting: mathematical analyses

It has frequently been claimed that learning performance improves with practice according to the so-called “Power Law of Learning.” Similarly, forgetting may follow a power law. It has been shown on the basis of extensive simulations that such power laws may emerge through averaging functions with other, nonpower function shapes. In the present article, we supplement these simulations with a mathematical proof that power functions will indeed emerge as a result of averaging over exponential functions, if the distribution of learning rates follows a gamma distribution, a uniform distribution, or a half-normal function. Through a number of simulations, we further investigate to what extent these findings may affect empirical results in practice.     

Cognitive and neural determinants of response strategy in the dual-solution plus-maze task

Response strategy in the dual-solution plus maze is regarded as a form of stimulus-response learning. In this study, by using an outcome devaluation procedure, we show that it can be based on both action-outcome and stimulus-response habit learning, depending on the amount of training that the animals receive. Furthermore, we show that deactivation of the dorso-medial and the dorso-lateral striatum with Botulinum neurotoxin A, mimicked or abolished, respectively, the effects of practice on the sensitivity of the response strategy to outcome devaluation. These findings have relevant implications for the understanding of the learning mechanisms underlying different overt behaviors in this widely used maze task.     

Influence of perceived sport competence and body attractiveness on physical activity and other healthy lifestyle habits in adolescents

The purpose of this study was to test an explanatory model of the relationships between physical self-concept and some healthy habits. A sample of 472 adolescents aged 16 to 20 answered different questionnaires assessing physical self-concept, physical activity, intention to be physically active and consumption of alcohol and tobacco. The results of the structural equation model showed that perceived sport competence positively correlated with current physical activity. Body attractiveness positively correlated with physical activity in boys and negatively in girls. Current physical activity positively correlated with the intention to be physically active in the future and negatively with the consumption of alcohol and tobacco. Nevertheless, this last relationship was only significant in boys. The results are discussed in connection with the promotion of healthy lifestyle guidelines among adolescents. This model shows the importance of physical self-concept for engaging in physical activity in adolescence. It also suggests that physical activity is associated with the intention to continue being physically active and with healthy lifestyle habits.