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In JoVE (4)
- Investigação por imagem do cérebro os correlatos neurais da Observando Virtual Interações Sociais
- Investigação por imagem do cérebro os correlatos neurais da Recordação Autobiographical Emocional
- Investigação por imagem do cérebro os correlatos neurais da regulação emocional
- Investigação por imagem do cérebro o efeito prejudicial da emoção sobre a Cognição
Other Publications (5)
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Articles by Sanda Dolcos in JoVE
Investigação por imagem do cérebro os correlatos neurais da Observando Virtual Interações Sociais
Keen Sung1, Sanda Dolcos2, Sophie Flor-Henry3, Crystal Zhou3, Claudia Gasior4, Jennifer Argo5, Florin Dolcos2,6,7
1Department of Computing Science, University of Alberta, 2Department of Psychology, University of Illinois, 3Centre for Neuroscience, University of Alberta, 4Department of Psychology, University of Alberta, 5Department of Marketing, Business Economics, and Law, University of Alberta, 6Neuroscience Program, University of Illinois at Urbana-Champaign, 7Beckman Institute, University of Illinois at Urbana-Champaign
Este artigo demonstra um delineamento experimental em que todo o corpo personagens animados são usados em conjunto com ressonância magnética funcional (fMRI) para investigar os correlatos neurais da observação virtual de interações sociais.
Investigação por imagem do cérebro os correlatos neurais da Recordação Autobiographical Emocional
Ekaterina Denkova1, Trisha Chakrabarty1, Sanda Dolcos1,2, Florin Dolcos1,2,3,4
1Department of Psychiatry, University of Alberta, Edmonton, 2Psychology Department, University of Illinois, Urbana-Champaign, 3Neuroscience Program, University of Illinois, Urbana-Champaign, 4Beckman Institute for Advanced Science & Technology, University of Illinois, Urbana-Champaign
Apresentamos um protocolo que permite a investigação dos correlatos neurais da relembrando memórias autobiográficas emocional, usando ressonância magnética funcional. Este protocolo pode ser usado com participantes saudáveis e clínicos.
Investigação por imagem do cérebro os correlatos neurais da regulação emocional
Sanda Dolcos1, Keen Sung2, Ekaterina Denkova3, Roger A. Dixon4,5, Florin Dolcos1,6,7
1Department of Psychology, University of Illinois, Urbana-Champaign, 2Department of Computing Science, University of Alberta, Edmonton, 3Department of Psychiatry, University of Alberta, Edmonton, 4Department of Psychology, University of Alberta, Edmonton, 5Centre for Neuroscience, University of Alberta, Edmonton, 6Neuroscience Program, University of Illinois, Urbana-Champaign, 7Beckman Institute, University of Illinois, Urbana-Champaign
Apresentamos um protocolo que permite a investigação dos correlatos neurais da regulação da emoção deliberada e automático, utilizando imagens de ressonância magnética funcional. Este protocolo pode ser usado em participantes saudáveis, jovens e idosos, bem como em pacientes clínicos.
Investigação por imagem do cérebro o efeito prejudicial da emoção sobre a Cognição
Gloria Wong1,2, Sanda Dolcos1,3, Ekaterina Denkova1, Rajendra Morey4,5,6, Lihong Wang4,5, Gregory McCarthy6,7, Florin Dolcos1,2,3,8,9
1Department of Psychiatry, University of Alberta, 2Centre for Neuroscience, University of Alberta, 3Department of Psychology, University of Illinois, 4Brain Imaging and Analysis Center, Duke University, 5Department of Psychiatry and Behavioral Sciences, Duke University, 6Mid-Atlantic Mental Illness Research Education and Clinical Center, VA Medical Center, 7Department of Psychology, Yale University, 8Neuroscience Program, University of Illinois, 9Beckman Institute for Advanced Science & Technology, University of Illinois
Apresentamos um protocolo que permite a investigação dos mecanismos neurais mediando o impacto negativo da emoção na cognição, utilizando ressonância magnética funcional. Este protocolo pode ser usado com participantes saudáveis e clínicos.
Other articles by Sanda Dolcos on PubMed
Testing Covariates of Type 2 Diabetes-cognition Associations in Older Adults: Moderating or Mediating Effects?
Neuropsychology. Sep, 2010 | Pubmed ID: 20804243
The general goal of this study was to advance our understanding of Type 2 diabetes (T2D)-cognition relationships in older adults by linking and testing comprehensive sets of potential moderators, potential mediators, and multiple cognitive outcomes.
The Impact of Anxiety-inducing Distraction on Cognitive Performance: a Combined Brain Imaging and Personality Investigation
PloS One. 2010 | Pubmed ID: 21152391
Previous investigations revealed that the impact of task-irrelevant emotional distraction on ongoing goal-oriented cognitive processing is linked to opposite patterns of activation in emotional and perceptual vs. cognitive control/executive brain regions. However, little is known about the role of individual variations in these responses. The present study investigated the effect of trait anxiety on the neural responses mediating the impact of transient anxiety-inducing task-irrelevant distraction on cognitive performance, and on the neural correlates of coping with such distraction. We investigated whether activity in the brain regions sensitive to emotional distraction would show dissociable patterns of co-variation with measures indexing individual variations in trait anxiety and cognitive performance.
Neural Correlates of Emotion-cognition Interactions: A Review of Evidence from Brain Imaging Investigations
Journal of Cognitive Psychology (Hove, England). Sep, 2011 | Pubmed ID: 22059115
Complex dynamic behaviour involves reciprocal influences between emotion and cognition. On the one hand, emotion is a "double-edged sword" that may affect various aspects of our cognition and behaviour, by enhancing or hindering them and exerting both transient and long-term influences. On the other hand, emotion processing is also susceptible to cognitive influences, typically exerted in the form of emotion regulation. Noteworthy, both of these reciprocal influences are subjective to individual differences that may affect the way we perceive, experience, and eventually remember emotional experiences, or respond to emotionally challenging situations. Understanding these relationships is critical, as unbalanced emotion-cognition interactions may lead to devastating effects, such as those observed in mood and anxiety disorders. The present review analyses the reciprocal relationships between emotion and cognition, based on evidence derived from brain imaging investigations focusing on three main topics: (1) the impact of emotion on cognition, (2) the impact of cognition on emotion, and (3) the role of individual differences in emotion-cognition interactions. This evidence will be discussed in the context of identifying aspects that are fundamental to understanding the mechanisms underlying emotion-cognition interactions in healthy functioning, and to understanding changes associated with affective disorders.
Reliving Emotional Personal Memories: Affective Biases Linked to Personality and Sex-related Differences
Emotion (Washington, D.C.). Jan, 2012 | Pubmed ID: 22251043
Although available evidence suggests that the emotional valence and recollective properties of autobiographical memories (AMs) may be influenced by personality- and sex-related differences, overall these relationships remain poorly understood. The present study investigated these issues by comparing the effect of general personality traits (extraversion and neuroticism) and specific traits linked to emotion regulation (ER) strategies (reappraisal and suppression) on the retrieval of emotional AMs and on the associated postretrieval emotional states, in men and women. First, extraversion predicted recollection of positive AMs in both men and women, whereas neuroticism predicted the proportion of negative AMs in men and the frequency of rehearsing negative AMs in women. Second, reappraisal predicted positive AMs in men, and suppression predicted negative AMs in women. Third, while reliving of positive memories had an overall indirect effect on postretrieval positive mood through extraversion, reliving of negative AMs had a direct effect on postretrieval negative mood, which was linked to inefficient engagement of suppression in women. Our findings suggest that personality traits associated with positive affect predict recollection of positive AMs and maintenance of a positive mood, whereas personality traits associated with negative affect, along with differential engagement of habitual ER strategies in men and women, predict sex-related differences in the recollection and experiencing of negative AMs. These findings provide insight into the factors that influence affective biases in reliving AMs, and into their possible link to sex-related differences in the susceptibility to affective disorders. (PsycINFO Database Record (c) 2012 APA, all rights reserved).
Mild Cognitive Impairment is Associated with Selected Functional Markers: Integrating Concurrent, Longitudinal, and Stability Effects
Neuropsychology. Jan, 2012 | Pubmed ID: 22251311
Objective: We examined functional performance on multiple indicators for two cognitive status groups: (a) not impaired controls (NIC) and (b) mild cognitive impairment (MCI). We identified functional markers associated with differences, changes, and stability in cognitive status. Method: In the Victoria Longitudinal Study (VLS) we examined cognitive status group effects in (a) cross-sectional functional performance, (b) longitudinal stability, (c) longitudinal functional performance change, and (d) functional marker prediction of later cognitive status. We assembled markers from five continuous clusters of MCI-related functional factors: biological vitality, activity lifestyle, psychosocial affect, subjective health, and global cognition. We used a cross-sectional sample and a two-wave longitudinal sample, stratified by age (mid-old, old-old) and cognitive status (MCI, NIC). Results: First, cross-sectional results showed that eight markers differentiated MCI and NIC adults, with the latter performing uniformly better. The groups differed on diastolic blood pressure, body mass index, positive and negative affect, MMSE, and the lifestyle indicators of self-maintenance, travel, and novel cognitive activities. Second, Wave 1 to Wave 2 stabilities in cognitive status classification were high. Third, several markers differentiated the stable (NIC-to-NIC, MCI-to-MCI) from the unstable (NIC-to-MCI, MCI-to-NIC) cognitive status groups. Fourth, five relevant markers for identifying older adults at risk for cognitive status changes were: diastolic blood pressure, self-maintenance activities, novel cognitive activities, positive affect, and global cognitive status. Conclusion: Selected risk and protective factors differentiate persons classified with MCI from those not currently cognitively impaired, both cross-sectionally and longitudinally. (PsycINFO Database Record (c) 2012 APA, all rights reserved).