Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 4 de 4
Filtrar
Más filtros

Banco de datos
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
J Gambl Stud ; 2024 Aug 05.
Artículo en Inglés | MEDLINE | ID: mdl-39102018

RESUMEN

Identification of specific patterns of brain activity related to problem gambling may provide a deeper understanding of its underlying mechanisms, highlighting the importance of neurophysiological studies to better understand development and persistence of gambling behavior. The patterns of cognitive functioning have been investigated through electroencephalography (EEG) studies based on the near-win/near-miss (NW) effect. The main goal of the present study was to evaluate the neurophysiological basis of NWs and their modulation by gambling problems through a systematic review of event-related potentials (ERP) studies elicited by feedback events. The review followed the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols (PRISMA). A total of 15 studies were included, 12 comprising non-problem gamblers (NPGs) and three comparing problem gamblers (PGs) with matched controls. For the P300 component, the win outcome elicited a larger amplitude than the other outcomes (NW and loss), followed by the NW outcome, which elicited a larger amplitude than loss in some studies. For feedback-related negativity (FRN), the loss outcome evoked a more negative amplitude in several studies, despite eliciting a similar amplitude to NW outcomes in others. For PGs, the NW outcome evoked a higher amplitude of P300 than loss, while NPGs showed a similar amplitude to both outcomes. The present review gathered information from different sources and provides a consistent view of the different studies. However, studies lack systematic and robust methodologies, leading to inconsistent results and making it difficult to reach any definitive conclusions.

2.
J Gambl Stud ; 36(2): 653-668, 2020 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-32170502

RESUMEN

The near-miss effect in gambling refers to a losing situation that is (or perceived to be) close to a win by the gambler. This effect is one of the many cognitive distortions that can occur during gambling games. The main objective of the present study was to analyze the electrophysiological correlates of the near-miss effect via an event-related potential (ERP) study examining four distinct gambling outcomes: win, full miss, near-miss before the payline, and near-miss after the payline. This study comprised 23 healthy voluntary participants (10 women) with ages ranging between 19 and 34 years (M = 22.5; SD = 3.65). All participants completed the South Oaks Gambling Screen and played a computerized slot machine, programed to induce the near-miss effect and specifically designed for an ERP study. By splitting the near-miss effect in two subtypes (before and after the payline), increased feedback-related negativity (FRN) was found for the near-misses after the payline in comparison to losses and also to near-misses before the payline. Results also indicated an increased P300 amplitude for the near-misses before the payline compared both with losses and with near-misses after the payline. The results suggest that both FRN and P300 present different sensitivities to near-miss subtypes, suggesting a payline effect that is not demonstrated when the data of near-misses before and after the payline are analyzed together. This is the first study to analyze the effect of the near-miss subtype in an ERP study and confirms the findings of previous behavioral studies.


Asunto(s)
Conducta Adictiva/psicología , Potenciales Evocados , Juego de Azar/psicología , Recompensa , Adulto , Afecto , Femenino , Juegos Experimentales , Humanos , Masculino , Adulto Joven
3.
Health Serv Insights ; 16: 11786329231198991, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37736335

RESUMEN

Healthcare workers are a susceptible population to be psychologically affected during health crises, such as the recent COVID-19 pandemic. Resilience has been pointed out in the literature as a possible protective factor against psychological distress in crisis situations. This can be influenced by internal and external factors, such as individual characteristics and organizational factors. Thus, this study aims to characterize the overall resilience levels among healthcare professionals in Portugal and to understand the perspectives of this healthcare workers regarding organizational factors that improve individual resilience. This is a mixed-method study: a first quantitative study using a cross-sectional design to administer the Resilience Scale for Adults (RSA) to 271 healthcare professionals (Mage 33.90, SD = 9.59 years, 90.80% female), followed by a qualitative study through 10 in-depth interviews. The mean score for the total RSA was 178.17 (SD = 22.44) out of a total of 231. Qualitative analysis showed 4 major themes on factors that enhance resilience: "Professional's Training," "Support and Wellbeing Measures," "Reorganization of Services" and "Professional Acknowledgment." The findings may contribute to the development of targeted interventions and support systems to enhance resilience and well-being among healthcare workers.

4.
Clin Neuropsychol ; 33(2): 327-356, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30394184

RESUMEN

OBJECTIVES: The current review aimed to explore the advances in neuropsychological assessment in light of a recent research framework designed to improve our knowledge on mental health - the Research Domain Criteria (RDoC). METHODS: RDoC proposals on neuropsychological tests were reviewed across the RDoC cognitive systems domain. The focus is on the physiological unit of analysis and the potential applications are illustrated given the functional relevance of RDoC constructs to psychopathological and neurological conditions. RESULTS: The advances in neuropsychology anchored in RDoC are not observable in terms of innovative paradigms, but rather in the neurobiological correlates that may be obtained from the classical neuropsychological tasks. The behavior unit of analysis may be integrated with physiological outcomes while mapping distinct cognitive constructs simultaneously. CONCLUSIONS: Under the aegis of RDoC, the integration of multiple levels of analysis allows to obtain a more detailed and complete neuropsychological characterization with high potential to be translated into better intervention strategies.


Asunto(s)
Investigación Biomédica/tendencias , Cognición/fisiología , Trastornos Neurocognitivos/psicología , Pruebas Neuropsicológicas , Investigación Biomédica/métodos , Humanos , Trastornos Neurocognitivos/diagnóstico , Proyectos de Investigación/tendencias
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA