Search results for "psychophysiology"

Coping with competition: neuroendocrine responses and cognitive variables.

2008

Confronting another individual or group motivated by the same goal is a very frequent situation in human communities that occurs in many other species. Competitive interactions emerge as critical situations that shed light on the effects and consequences of social stress on health. But more important than the situation itself is the way it is interpreted by the subject. This "appraisal" involves cognitive processes that contribute to explaining the neuroendocrine response to these interactions, helping to understanding the vulnerability or resistance to their effects. In this review, we defend the need to study human competition within the social stress framework, while maintaining an evolu…

Cooperation Between Strangers in Face-to-Face Dyads Produces More Cardiovascular Activation Than Competition or Working Alone

2019

Abstract. Individual and shared goals can be achieved through social interpersonal interaction, cooperation and competition being two different yet similar strategies to reach such aims and objectives. Nevertheless, there is a gap in the literature analyzing the effect of these types of social interactions, especially in cooperation, on autonomic nervous system responses using noninvasive measures, such as heart rate (HR). The regulation of HR and other cardiovascular variables of the central nervous system offers information about how to encourage or discourage social engagement and prosocial behaviors. In fact, a more flexible engagement with the environment and efficient emotions regula…

Three-dimensional Hall effect accelerometer for recording head movements of freely moving laboratory animals

1991

A Hall effect device was constructed for a measurement of head movements in three spatial dimensions during classical conditioning experiments in cats. A Hall sensor was used to detect movements of a magnetic fragment floating in a small (15 x 15 mm) cube. The magnetic fragment was kept in the centre of the sealed cube with a thin coil spring which was filled with thin oil for damping excessive afteroscillations. A comparison of this device to a commercial accelerometer showed that the accuracy of the Hall device is sufficient for the movement recordings and that the device is sensitive also to slowly accelerating movements. The construction is compact and can be easily mounted, for example…

Evgeny Nikolaevich Sokolov (1920-2008).

2008

Neuropsychological and psychophysiological profile of intimate partner violence perpetrators men: the role of alcohol

2018

La violencia contra la mujer en las relaciones de pareja hombre-mujer, representa un grave problema de salud pública a nivel mundial. En los últimos años, una mayor evidencia científica sustenta la relación entre la violencia contra la mujer y el consumo de alcohol. Sin embargo, existe un vacío en la literatura sobre los efectos que ejerce el consumo de alcohol sobre las variables neuropsicológicas y psicofisiológicas en los hombres que han cometido violencia contra la mujer. El consumo de alcohol podría predisponer a los agresores a presentar alteraciones cognitivas que afecten a su regulación emocional y comportamental y, por tanto, predisponer a conductas violentas en situaciones estresa…

The effects of mental fatigue on sport-related performance

2018

International audience; Mental fatigue is known to increase subjective feelings of fatigue and to decrease cognitive performance, but its impact on physical performance remains poorly understood. The aim of this chapter was to review the results of 29 studies published between 2009 and April 2018 and focusing on the impact of mental fatigue on sport-related performance. Taken all studies together, it appears that mental fatigue impairs endurance performance, motor skills performance and decision-making performance. However, maximal force production is not reduced in the presence of mental fatigue. These observations suggest that mental fatigue impairs sport-related performance during exerci…

Heart rate variability and self-control—A meta-analysis

2015

Heart rate variability (HRV) has been suggested as a biological correlate of self-control. Whereas many studies found a relationship between HRV at rest and self-control, effect sizes vary substantially across studies in magnitude and direction. This meta-analysis evaluated the association between HRV at rest and self-control in laboratory tasks, with a particular focus on the identification of moderating factors (task characteristics, methodological aspects of HRV assessment, demographics). Overall, 24 articles with 26 studies and 132 effects (n=2317, mean age=22.44, range 18.4-57.8) were integrated (random effects model with robust variance estimation). We found a positive average effect …

Behavioural Cardiology at the Department of Psychology, Johannes Gutenberg-University Mainz, Germany

2008

Abstract. We provide a short overview of the research in Behavioural Cardiology at the Department of Psychology at the Johannes Gutenberg-University Mainz focussing on two lines of research: Studies of psychosocial variables that might enhance or attenuate cardiovascular risk in healthy individuals and studies of psychosocial variables and health behaviours that might impact the health status of patients listed for heart transplantation. Our studies so far suggest that psychosocial factors like anxiety and repressive coping impact information processing and cardiovascular responses to stress. Moreover, we examine the impact of health-protective resource variables including self-efficacy an…

Blunted Electrodermal and Psychological Response to Acute Stress in Family Caregivers of People with Eating Disorders.

2016

AbstractCaring for an offspring with an eating disorder (ED) is associated with high levels of distress, and health problems. Indeed, ED caregivers have to cope with a range of challenges related to their caring role, which represents a chronic stress situation. This tends to alter body homeostasis and caregivers’ health status. This study aimed to analyse the electrodermal reactivity and psychological response to acute stress in ED caregivers compared to non-caregivers. As expected, caregivers showed lower electrodermal (p < .001, η2partial = .269 for SCL and p < .01, η2partial = .214 for NSCRs) and psychological response (p < .05, η2partial = .198) to acute stress than non-caregi…

Quantifying multidimensional control mechanisms of cardiovascular dynamics during multiple concurrent stressors

2021

Heartbeat regulation is achieved through different routes originating from central autonomic network sources, as well as peripheral control mechanisms. While previous studies successfully characterized cardiovascular regulatory mechanisms during a single stressor, to the best of our knowledge, a combination of multiple concurrent elicitations leading to the activation of different autonomic regulatory routes has not been investigated yet. Therefore, in this study, we propose a novel modeling framework for the quantification of heartbeat regulatory mechanisms driven by different neural routes. The framework is evaluated using two heartbeat datasets gathered from healthy subjects undergoing p…