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1.
Cereb Cortex ; 31(7): 3311-3322, 2021 06 10.
Artigo em Inglês | MEDLINE | ID: mdl-33687437

RESUMO

Loneliness and wisdom have opposing impacts on health and well-being, yet their neuro-cognitive bases have never been simultaneously investigated. In this study of 147 healthy human subjects sampled across the adult lifespan, we simultaneously studied the cognitive and neural correlates of loneliness and wisdom in the context of an emotion bias task. Aligned with the social threat framework of loneliness, we found that loneliness was associated with reduced speed of processing when angry emotional stimuli were presented to bias cognition. In contrast, we found that wisdom was associated with greater speed of processing when happy emotions biased cognition. Source models of electroencephalographic data showed that loneliness was specifically associated with enhanced angry stimulus-driven theta activity in the left transverse temporal region of interest, which is located in the area of the temporoparietal junction (TPJ), while wisdom was specifically related to increased TPJ theta activity during happy stimulus processing. Additionally, enhanced attentiveness to threatening stimuli for lonelier individuals was observed as greater beta activity in left superior parietal cortex, while wisdom significantly related to enhanced happy stimulus-evoked alpha activity in the left insula. Our results demonstrate emotion-context driven modulations in cognitive neural circuits by loneliness versus wisdom.


Assuntos
Cognição/fisiologia , Emoções/fisiologia , Solidão/psicologia , Estimulação Luminosa/métodos , Pensamento/fisiologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Eletroencefalografia/métodos , Feminino , Felicidade , Humanos , Masculino , Pessoa de Meia-Idade , Tempo de Reação/fisiologia , Adulto Jovem
2.
Cogn Neuropsychiatry ; 23(3): 154-164, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29502459

RESUMO

INTRODUCTION: It is well established that depressive disorders are associated with abnormalities in the processing of affective information. However, type of stimuli, perceptual complexity and cognitive demand are important factors in evaluating these findings. In particular, processing mechanisms of perceptual boundaries in ecologically valid face stimuli are largely unknown in depression. METHODS: In the current study, intensity-ordered frame sequences provided a dynamic visualisation of happy or sad facial expressions fading from or to neutral expressions. Patients (n = 20) with major depression (MD) disorder and controls (n = 20) indicated their perceptual boundaries between neutral and emotional face depending on direction and emotion. The averaged time of the perceptual boundary entered a group × condition ANOVA and regression analysis. RESULTS: MD group did not systematically shift perceptual boundaries in the dynamic emotional faces but yielded altered statistics in information processing. The Gaussian distribution of boundary judgements was disturbed in depression, increasing goodness-of-fit errors in disappearing emotions. Goodness-of-fit correlated with depression symptom score (Beck Depression Inventory-II (BDI-II)) in the MD group during the disappearing sad (r(18) = 46, p = 0.04) and happy (r(18) = 51, p = 0.02) conditions. CONCLUSION: We evaluated detection of appearing and disappearing emotions in dynamic faces. A deviant distribution of categorisation responses emerged in the MD group, which was not emotion-specific. Such a perceptional uncertainty can impede individuals' functioning in interpersonal interaction.


Assuntos
Transtorno Depressivo Maior/psicologia , Expressão Facial , Percepção Social , Adulto , Idoso , Estudos de Casos e Controles , Cognição/fisiologia , Depressão , Emoções , Feminino , Felicidade , Humanos , Masculino , Pessoa de Meia-Idade , Adulto Jovem
3.
Front Psychol ; 12: 733742, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34975623

RESUMO

Atypical emotion interpretation has been widely reported in individuals with borderline personality disorder (iBPD); however, empirical studies reported mixed results so far. We suggest that discrepancies in observations of emotion interpretation by iBPD can be explained by biases related to their fear of rejection and abandonment, i.e., the three moral emotions of anger, disgust, and contempt. In this study, we hypothesized that iBPD would show a higher tendency to correctly interpret these three displays of social rejection and attribute more negative valence. A total of 28 inpatient iBPDs and 28 healthy controls were asked to judge static and dynamic facial expressions in terms of emotions, valence, and self-reported arousal evoked by the observed faces. Our results partially confirmed our expectations. The iBPD correctly interpreted the three unambiguous moral emotions. Contempt, a complex emotion with a difficulty in recognizing facial expressions, was recognized better by iBPD than by healthy controls. All negative emotions were judged more negatively by iBPD than by controls, but no difference was observed in the neutral or positive emotion. Alexithymia and anxiety trait and state levels were controlled in all analyses.

4.
Q J Exp Psychol (Hove) ; 73(11): 1921-1929, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32513058

RESUMO

The "positivity effect" (PE) reflects an age-related increase in the preference for positive over negative information in attention and memory. The present experiment investigated whether Chinese and UK participants produce a similar PE. In one experiment, we presented pleasant, unpleasant, and neutral pictures simultaneously and participants decided which picture they liked or disliked on a third of trials, respectively. We recorded participants' eye movements during this task and compared time looking at, and memory for, pictures. The results suggest that older but not younger adults from both China and UK participant groups showed a preference to focus on and remember pleasant pictures, providing evidence of a PE in both cultures. Bayes Factor analysis supported these observations. These findings are consistent with the view that older people preferentially focus on positive emotional information, and that this effect is observed cross-culturally.


Assuntos
Envelhecimento/psicologia , Comparação Transcultural , Emoções , Movimentos Oculares , Adulto , Idoso , Idoso de 80 Anos ou mais , Atenção , Teorema de Bayes , China/etnologia , Humanos , Memória , Reino Unido/etnologia , Adulto Jovem
5.
Eur J Psychotraumatol ; 9(1): 1442602, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29535847

RESUMO

Background: The immediate aftermath of traumatic events is a period of enhanced neural plasticity, following which some survivors remain with post-traumatic stress disorder (PTSD) whereas others recover. Evidence points to impairments in emotional reactivity, emotion regulation, and broader executive functions as critically contributing to PTSD. Emerging evidence further suggests that the neural mechanisms underlying these functions remain plastic in adulthood and that targeted retraining of these systems may enhance their efficiency and could reduce the likelihood of developing PTSD. Administering targeted neurocognitive training shortly after trauma exposure is a daunting challenge. This work describes a study design addressing that challenge. The study evaluated the direct effects of cognitive remediation training on neurocognitive mechanisms that hypothetically underlay PTSD, and the indirect effect of this intervention on emerging PTSD symptoms. Method: We describe a study rationale, design, and methodological choices involving: (a) participants' enrolment; (b) implementation and management of a daily self-administered, web-based intervention; (c) reliable, timely screening and assessment of treatment of eligible survivors; and (d) defining control conditions and outcome measures. We outline the rationale of choices made regarding study sample, timing of intervention, measurements, monitoring participants' adherence, and ways to harmonize and retain interviewers' fidelity and mitigate eventual burnout by repeated contacts with recently traumatized survivors. Conclusion: Early web-based interventions targeting causative mechanisms of PTSD can be informed by the model presented in this paper.


El período inmediatamente posterior a los eventos traumáticos es un período de mayor plasticidad neuronal, después del cual algunos sobrevivientes siguen con trastorno de estrés postraumático (TEPT) mientras que otros se recuperan. La evidencia señala que las deficiencias en reactividad emocional, regulación de las emociones y funciones ejecutivas más amplias contribuyen de manera crítica al TEPT. La evidencia que comienza a hacer su aparición sugiere además que los mecanismos neuronales que subyacen a estas funciones siguen siendo plásticos en la edad adulta y que la reeducación específica de estos sistemas puede mejorar su eficacia y reducir la probabilidad de desarrollar un TEPT. La administración de entrenamiento neurocognitivo específico poco después de la exposición al trauma es un desafío desalentador. Este trabajo describe un diseño de estudio que aborda ese desafío. El estudio evaluó los efectos directos del entrenamiento en reparación cognitiva sobre los mecanismos neurocognitivos que hipotéticamente subyacen al TEPT y el efecto indirecto de esta intervención en los síntomas de TEPT que surgen. Método: Describimos una justificación para el estudio, unas opciones de diseño y una metodología que implican (a) inscribir a los participantes; (b) implementar y administrar una intervención diaria autoadministrada, basada en la web; (c) detectar y evaluar, de modo oportuno y fiable, el tratamiento de los sobrevivientes que resultan elegibles; y (d) definir las condiciones de control y las medidas de los resultados. Resumimos la justificación de las decisiones que se tomaron con respecto a la muestra del estudio, el momento de la intervención, las mediciones, el seguimiento del compromiso de los participantes y el modo de armonizar y retener la fidelidad de los entrevistadores y mitigar el agotamiento debido al contacto repetido con sobrevivientes recientemente traumatizados. Conclusión: las intervenciones tempranas basadas en la web que se dirigen a los mecanismos que causan el TEPT pueden basarse en el modelo presentado en este documento.

6.
Front Psychol ; 7: 1095, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27504101

RESUMO

Approximately five million children in the United States have experienced a co-resident parent's incarceration in jail or prison. Parental incarceration is associated with multiple risk factors for maladjustment, which may contribute to the increased likelihood of behavioral problems in this population. Few studies have examined early predictors of maladjustment among children with incarcerated parents, limiting scholars' understanding about potential points for prevention and intervention. Emotion recognition skills may play a role in the development of maladjustment and may be amenable to intervention. The current study examined whether emotion recognition skills differed between 3- to 8-year-old children with and without jailed parents. We hypothesized that children with jailed parents would have a negative bias in processing emotions and less accuracy compared to children without incarcerated parents. Data were drawn from 128 families, including 75 children (53.3% male, M = 5.37 years) with jailed parents and 53 children (39.6% male, M = 5.02 years) without jailed parents. Caregivers in both samples provided demographic information. Children performed an emotion recognition task in which they were asked to produce a label for photos expressing six different emotions (i.e., happy, surprised, neutral, sad, angry, and fearful). For scoring, the number of positive and negative labels were totaled; the number of negative labels provided for neutral and positive stimuli were totaled (measuring negative bias/overextension of negative labels); and valence accuracy (i.e., positive, negative, and neutral) and label accuracy were calculated. Results indicated a main effect of parental incarceration on the number of positive labels provided; children with jailed parents presented significantly fewer positive emotions than the comparison group. There was also a main effect of parental incarceration on negative bias (the overextension of negative labels); children with jailed parents had a negative bias compared to children without jailed parents. However, these findings did not hold when controlling for child age, race/ethnicity, receipt of special education services, and caregiver education. The results provide some evidence for the effect of the context of parental incarceration in the development of negative emotion recognition biases. Limitations and implications for future research and interventions are discussed.

7.
Psychiatry Res ; 230(1): 36-43, 2015 Nov 30.
Artigo em Inglês | MEDLINE | ID: mdl-26235478

RESUMO

Positive affect and optimism play an important role in healthy ageing and are associated with improved physical and cognitive health outcomes. This study investigated whether it is possible to boost positive affect and associated positive biases in this age group using cognitive training. The effect of computerised imagery-based cognitive bias modification on positive affect, vividness of positive prospective imagery and interpretation biases in older adults was measured. 77 older adults received 4 weeks (12 sessions) of imagery cognitive bias modification or a control condition. They were assessed at baseline, post-training and at a one-month follow-up. Both groups reported decreased negative affect and trait anxiety, and increased optimism across the three assessments. Imagery cognitive bias modification significantly increased the vividness of positive prospective imagery post-training, compared with the control training. Contrary to our hypothesis, there was no difference between the training groups in negative interpretation bias. This is a useful demonstration that it is possible to successfully engage older adults in computer-based cognitive training and to enhance the vividness of positive imagery about the future in this group. Future studies are needed to assess the longer-term consequences of such training and the impact on affect and wellbeing in more vulnerable groups.


Assuntos
Envelhecimento/psicologia , Emoções , Imagens, Psicoterapia/métodos , Imaginação , Otimismo/psicologia , Afeto/fisiologia , Idoso , Idoso de 80 Anos ou mais , Envelhecimento/fisiologia , Ansiedade/psicologia , Ansiedade/terapia , Cognição/fisiologia , Emoções/fisiologia , Feminino , Seguimentos , Previsões , Humanos , Imaginação/fisiologia , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Método Simples-Cego
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