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1.
Behav Res Methods ; 56(4): 3330-3345, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38637442

RESUMO

Climate change is widely recognised as an urgent issue, and the number of people concerned about it is increasing. While emotions are among the strongest predictors of behaviour change in the face of climate change, researchers have only recently begun to investigate this topic experimentally. This may be due to the lack of standardised, validated stimuli that would make studying such a topic in experimental settings possible. Here, we introduce a novel Emotional Climate Change Stories (ECCS) stimuli set. ECCS consists of 180 realistic short stories about climate change, designed to evoke five distinct emotions-anger, anxiety, compassion, guilt and hope-in addition to neutral stories. The stories were created based on qualitative data collected in two independent studies: one conducted among individuals highly concerned about climate change, and another one conducted in the general population. The stories were rated on the scales of valence, arousal, anger, anxiety, compassion, guilt and hope in the course of three independent studies. First, we explored the underlying structure of ratings (Study 1; n = 601). Then we investigated the replicability (Study 2; n = 307) and cross-cultural validity (Study 3; n = 346) of ECCS. The collected ratings were highly consistent across the studies. Furthermore, we found that the level of climate change concern explained the intensity of elicited emotions. The ECCS dataset is available in Polish, Norwegian and English and can be employed for experimental research on climate communication, environmental attitudes, climate action-taking, or mental health and wellbeing.


Assuntos
Mudança Climática , Emoções , Humanos , Emoções/fisiologia , Feminino , Masculino , Adulto , Adulto Jovem , Pessoa de Meia-Idade , Reprodutibilidade dos Testes , Adolescente , Ansiedade/psicologia
2.
JMIR Form Res ; 8: e47960, 2024 Mar 20.
Artigo em Inglês | MEDLINE | ID: mdl-38506892

RESUMO

BACKGROUND: There has been an increased need to provide specialized help for people with depressive and anxiety symptoms, particularly teenagers and young adults. There is evidence from a 2-week intervention that chatbots (eg, Woebot) are effective in reducing depression and anxiety, an effect that was not detected in the control group that was provided self-help materials. Although chatbots are a promising solution, there is limited scientific evidence for the efficacy of agent-guided cognitive behavioral therapy (CBT) outside the English language, especially for highly inflected languages. OBJECTIVE: This study aimed to measure the efficacy of Fido, a therapy chatbot that uses the Polish language. It targets depressive and anxiety symptoms using CBT techniques. We hypothesized that participants using Fido would show a greater reduction in anxiety and depressive symptoms than the control group. METHODS: We conducted a 2-arm, open-label, randomized controlled trial with 81 participants with subclinical depression or anxiety who were recruited via social media. Participants were divided into experimental (interacted with a fully automated Fido chatbot) and control (received a self-help book) groups. Both intervention methods addressed topics such as general psychoeducation and cognitive distortion identification and modification via Socratic questioning. The chatbot also featured suicidal ideation identification and redirection to suicide hotlines. We used self-assessment scales to measure primary outcomes, including the levels of depression, anxiety, worry tendencies, satisfaction with life, and loneliness at baseline, after the 2-week intervention and at the 1-month follow-up. We also controlled for secondary outcomes, including engagement and frequency of use. RESULTS: There were no differences in anxiety and depressive symptoms between the groups at enrollment and baseline. After the intervention, depressive and anxiety symptoms were reduced in both groups (chatbot: n=36; control: n=38), which remained stable at the 1-month follow-up. Loneliness was not significantly different between the groups after the intervention, but an exploratory analysis showed a decline in loneliness among participants who used Fido more frequently. Both groups used their intervention technique with similar frequency; however, the control group spent more time (mean 117.57, SD 72.40 minutes) on the intervention than the Fido group (mean 79.44, SD 42.96 minutes). CONCLUSIONS: We did not replicate the findings from previous (eg, Woebot) studies, as both arms yielded therapeutic effects. However, such results are in line with other research of Internet interventions. Nevertheless, Fido provided sufficient help to reduce anxiety and depressive symptoms and decreased perceived loneliness among high-frequency users, which is one of the first pieces of evidence of chatbot efficacy with agents that use a highly inflected language. Further research is needed to determine the long-term, real-world effectiveness of Fido and its efficacy in a clinical sample. TRIAL REGISTRATION: ClinicalTrials.gov NCT05762939; https://clinicaltrials.gov/study/NCT05762939; Open Science Foundation Registry 2cqt3; https://osf.io/2cqt3.

3.
Addict Biol ; 29(2): e13364, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38380800

RESUMO

BACKGROUND: Alexithymia, difficulty in recognising and naming emotions, is common among people who use alcohol. There is also emerging evidence that people with alexithymia are unable to distinguish emotions from non-emotional physiological states. The project aimed to test if alcohol use is related to the way student drinkers experience emotions and physiological states in the body. METHODS: We employed a novel method to study bodily sensations related to emotions and physiological states in the context of alcohol use: the emBODY tool, which allowed participants to mark areas of the body in which they experience various emotions and physiological states. RESULTS: Students who showed a hazardous pattern of alcohol use (alcohol use disorders identification test [AUDIT] score ≥ 7, N = 91), overall, presented higher alexithymia levels and coloured larger areas for emotions and physiological states (showed less specificity) than those who show low-risk alcohol consumption (AUDIT ≤ 4, N = 90). Moreover, statistical classifiers distinguished feeling-specific maps less accurately for hazardous drinkers than low-risk drinkers [F(1,1998) = 441.16; p < 0.001], confirming that higher alcohol use is related to higher confusion of emotional and non-emotional bodily feelings. CONCLUSIONS: Plausibly, this increased bodily confusion drives alcohol consumption: alcohol may serve as a means of dealing with undifferentiated changes in psychophysiological arousal accompanying emotional states.


Assuntos
Alcoolismo , Humanos , Emoções/fisiologia , Sintomas Afetivos/psicologia , Consumo de Bebidas Alcoólicas , Estudantes/psicologia
4.
Proc Natl Acad Sci U S A ; 120(46): e2302655120, 2023 Nov 14.
Artigo em Inglês | MEDLINE | ID: mdl-37934822

RESUMO

Reading danger signals may save an animal's life, and learning about threats from others allows avoiding first-hand aversive and often fatal experiences. Fear expressed by other individuals, including those belonging to other species, may indicate the presence of a threat in the environment and is an important social cue. Humans and other animals respond to conspecifics' fear with increased activity of the amygdala, the brain structure crucial for detecting threats and mounting an appropriate response to them. It is unclear, however, whether the cross-species transmission of threat information involves similar mechanisms, e.g., whether animals respond to the aversively induced emotional arousal of humans with activation of fear-processing circuits in the brain. Here, we report that when rats interact with a human caregiver who had recently undergone fear conditioning, they show risk assessment behavior and enhanced amygdala activation. The amygdala response involves its two major parts, the basolateral and central, which detect a threat and orchestrate defensive responses. Further, we show that humans who learn about a threat by observing another aversively aroused human, similar to rats, activate the basolateral and centromedial parts of the amygdala. Our results demonstrate that rats detect the emotional arousal of recently aversively stimulated caregivers and suggest that cross-species social transmission of threat information may involve similar neural circuits in the amygdala as the within-species transmission.


Assuntos
Núcleo Central da Amígdala , Humanos , Ratos , Animais , Medo/fisiologia , Aprendizagem , Nível de Alerta/fisiologia , Afeto
5.
Int J Psychophysiol ; 192: 1-12, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37524120

RESUMO

Procrastination is an irrational delay of task completion. Previous studies have demonstrated that individuals who often procrastinate present deficits in attentional control and performance monitoring and that these dysfunctions might be differentially manifested depending on the motivational context. Building upon these results, the present event-related potential (ERP) study aimed to investigate the impact of norm-referenced feedback on executive functions among students with high (HP; N = 75) or low (LP; N = 77) procrastination levels. Participants completed the parametric Go/No-Go task, while receiving either positive or negative false feedback indicating how well they performed in comparison to others. The results indicated that positive (as opposed to negative) feedback led to higher self-reported arousal and increased post-error slowing in HP (vs. LP) participants. Moreover, neurophysiological measures indicated lower neural activation linked to attentional control (P300) and performance monitoring (ERN, CRN and Pe) in HP than LP participants, while the groups did not differ in these indices during the positive feedback condition. Obtained findings indicate that HP might be more sensitive to the motivating effects of success and more vulnerable to the detrimental influence of failure.


Assuntos
Atenção , Potenciais Evocados , Humanos , Atenção/fisiologia , Potenciais Evocados/fisiologia , Função Executiva/fisiologia , Motivação , Estudantes , Eletroencefalografia , Tempo de Reação/fisiologia
6.
Neuroimage ; 263: 119648, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-36162633

RESUMO

Humans often benefit from social cues when learning about the world. For instance, learning about threats from others can save the individual from dangerous first-hand experiences. Familiarity is believed to increase the effectiveness of social learning, but it is not clear whether it plays a role in learning about threats. Using functional magnetic resonance imaging, we undertook a naturalistic approach and investigated whether there was a difference between observational fear learning from friends and strangers. Participants (observers) witnessed either their friends or strangers (demonstrators) receiving aversive (shock) stimuli paired with colored squares (observational learning stage). Subsequently, participants watched the same squares, but without receiving any shocks (direct-expression stage). We observed a similar pattern of brain activity in both groups of observers. Regions related to threat responses (amygdala, anterior insula, anterior cingulate cortex) and social perception (fusiform gyrus, posterior superior temporal sulcus) were activated during the observational phase, possibly reflecting the emotional contagion process. The anterior insula and anterior cingulate cortex were also activated during the subsequent stage, indicating the expression of learned threat. Because there were no differences between participants observing friends and strangers, we argue that social threat learning is independent of the level of familiarity with the demonstrator.


Assuntos
Amigos , Imageamento por Ressonância Magnética , Humanos , Medo/fisiologia , Emoções , Tonsila do Cerebelo/fisiologia
7.
Cogn Affect Behav Neurosci ; 22(1): 171-186, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34498229

RESUMO

Procrastination is a voluntary delay in completing an important task while being aware that this behavior may lead to negative outcomes. It has been shown that an increased tendency to procrastinate is associated with deficits in some aspects of cognitive control. However, none of the previous studies investigated these dysfunctions through the lenses of the Dual Mechanisms Framework, which differentiates proactive and reactive modes of control. The present study was designed to fill this gap, using behavioral and neurophysiological assessment during the completion of the AX-Continuous Performance Task (AX-CPT) by high (HP) and low (LP) procrastinating students (N = 139). Behavioral results indicated that HP (vs. LP) were characterized by increased attentional fluctuations (higher reaction time variability) and reduction in some indices of proactive cognitive control (lower d'-context and A-cue bias, but similar PBIs). Furthermore, the neurophysiological data showed that HP, compared with LP, allocated less attentional resources (lower P3b) to cues that help to predict the correct responses to upcoming probes. They also responded with reduced preparatory activity (smaller CNV) after cues presentation. The two groups did not differ in neural responses linked to conflict detection and inhibition (similar N2 and P3a). Obtained findings indicate that HP might present deficits in some cognitive functions that are essential for effective proactive control engagement, along with preserved levels of reactive cognitive control. In the present paper, we discuss the potential neural and cognitive mechanisms responsible for the observed effects.


Assuntos
Sinais (Psicologia) , Eletroencefalografia , Cognição/fisiologia , Humanos , Tempo de Reação/fisiologia , Estudantes
8.
J Exp Psychol Gen ; 151(8): 1942-1955, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-34928685

RESUMO

Procrastination is a self-regulation failure in which people irrationally delay intended actions which leads to lower performance, satisfaction from achievements, and quality of life. Trait procrastination is estimated to affect 15% to 20% of the total population, and previous studies have shown procrastination to be related to impulsivity, emotion dysregulation, and executive dysfunctions, making it a good nonclinical example of a self-regulation disorder. Our previous fMRI results revealed impaired error processing (lower error-related activity of the anterior cingulate cortex) and lack of ability to intensify executive-control during the punishment context (no increase in activity in prefrontal regions) in procrastinators. This led us to the question of whether procrastination is related to impaired learning on errors and punishments. Low (LP) and high (HP) procrastinating students took part in a modified monetary probabilistic reversal learning task with separated reward and punishment conditions. Half of the participants started with reward and half with the punishment condition. Several learning models and model-free measures were applied to the collected behavioral data. Results suggest lower flexibility in the learning task in HP subjects, which can further decrease during the punishment condition. Moreover, HP subjects who began with the punishment condition tended to be less flexible throughout the rest of the task. These results suggest that impaired learning from errors and punishments may prevent highly procrastinating subjects from correcting their behaviors and add to the persistence of procrastination. We also conclude that impaired learning on errors and punishments might be a more general mechanism underpinning other self-regulation disorders. (PsycInfo Database Record (c) 2022 APA, all rights reserved).


Assuntos
Punição , Autocontrole , Humanos , Qualidade de Vida , Reversão de Aprendizagem/fisiologia , Recompensa
9.
Int J Psychophysiol ; 170: 51-58, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34547304

RESUMO

Reaction slowing observed in dialyzed patients results from deficits in initiating and sustaining motor response mobilization. The present study aimed at investigating whether these deficits are reversible following successful kidney transplantation. To achieve this goal, behavioral and electrophysiological (EEG) data were assessed from healthy control participants as well as kidney transplant and dialyzed patients performing a series of reaction time tasks. The results demonstrated that in patients who received kidney transplant a normalization of response latencies and brain preparatory activity was observed. At the same time, when compared to healthy individuals, increased attention engagement was observed in both clinical groups of patients. No behavioral and electrophysiological indices of impaired monitoring were observed in any of the clinical groups.


Assuntos
Transplante de Rim , Atenção , Eletroencefalografia , Potenciais Evocados , Humanos , Tempo de Reação
10.
Acta Neurobiol Exp (Wars) ; 81(2): 111-120, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34170259

RESUMO

Here we examine how exposure to blue (peaking at λ=470 nm), green (peaking at λ=505 nm) and red (peaking at λ=630 nm) light affects subsequent working memory performance measured with visual N-back tasks and associated functional brain responses in participants with extreme morning and extreme evening chronotype. We used within-subjects experimental manipulation on carefully selected samples and state of the art equipment for light exposure. The results show no differences between extreme morning-type and evening-type individuals in N-back task performance. We also did not replicate the alerting effect of exposure to blue wavelength light, supposedly enhancing performance on cognitive tasks. However, we found higher brain activity in the morning hours for extreme morning in comparison to extreme evening chronotype in several frontal areas of the precentral gyrus, middle and superior frontal gyri and in the occipital gyrus. This may indicate increased strategic or attentional recruitment of prefrontal areas, implicated in compensating working memory load in the morning type.


Assuntos
Encéfalo/fisiologia , Ritmo Circadiano/fisiologia , Cognição/fisiologia , Luz , Memória de Curto Prazo/fisiologia , Atenção/fisiologia , Humanos , Córtex Pré-Frontal/fisiologia , Desempenho Psicomotor/fisiologia
11.
Sci Rep ; 10(1): 19678, 2020 11 12.
Artigo em Inglês | MEDLINE | ID: mdl-33184299

RESUMO

Procrastination is a self-regulatory problem of voluntarily and destructively delaying intended and necessary or personally important tasks. Previous studies showed that procrastination is associated with executive dysfunctions that seem to be particularly strong in punishing contexts. In the present event-related potential (ERP) study a monetary version of the parametric Go/No-Go task was performed by high and low academic procrastinators to verify the influence of motivational context (reward vs. punishment expectation) and task difficulty (easy vs. hard) on procrastination-related executive dysfunctions. The results revealed increased post-error slowing along with reduced P300 and error-related negativity (ERN) amplitudes in high (vs. low) procrastination participants-effects that indicate impaired attention and error-related processing in this group. This pattern of results did not differ as a function of task difficulty and motivation condition. However, when the task got more difficult executive attention deficits became even more apparent at the behavioral level in high procrastinators, as indexed by increased reaction time variability. The findings substantiate prior preliminary evidence that procrastinators show difficulties in certain aspects of executive functioning (in attention and error processing) during execution of task-relevant behavior, which may be more apparent in highly demanding situations.


Assuntos
Encéfalo/fisiopatologia , Potenciais Evocados , Procrastinação , Atenção , Função Executiva , Feminino , Humanos , Masculino , Motivação , Punição , Tempo de Reação , Recompensa , Análise e Desempenho de Tarefas
12.
Sci Rep ; 10(1): 16960, 2020 10 12.
Artigo em Inglês | MEDLINE | ID: mdl-33046817

RESUMO

Learning to avoid threats often occurs by observing others. Most previous research on observational fear learning (OFL) in humans has used pre-recorded standardized video of an actor and thus lacked ecological validity. Here, we aimed to enhance ecological validity of the OFL by engaging participants in a real-time observational procedure (35 pairs of healthy male friends, age 18-27). One of the participants watched the other undergo a differential fear conditioning task, in which a conditioned stimulus (CS+) was paired with an aversive electric shock and another stimulus (CS-) was always safe. Subsequently, the CS+ and CS- were presented to the observer to test the OFL. While the friend's reactions to the shock elicited strong skin conductance responses (SCR) in all observers, subsequent differential SCRs (CS+ > CS-) were found only when declarative knowledge of the CS+/US contingency (rated by the participants) was acquired. Contingency-aware observers also showed elevated fear potentiated startle responses during both CS+ and CS- compared to baseline. We conclude that our real-time procedure can be effectively used to study OFL. The procedure allowed for dissecting two components of the OFL: an automatic emotional reaction to the response of the demonstrator and learning about stimulus contingency.


Assuntos
Aprendizagem da Esquiva/fisiologia , Emoções/fisiologia , Medo/fisiologia , Adolescente , Adulto , Conscientização/fisiologia , Condicionamento Clássico/fisiologia , Condicionamento Psicológico/fisiologia , Resposta Galvânica da Pele/fisiologia , Humanos , Masculino , Adulto Jovem
13.
Artigo em Inglês | MEDLINE | ID: mdl-31610738

RESUMO

OBJECTIVES: Leftward deviation on a horizontal line bisection test (pseudoneglect) might be induced by right hemispheric dominance for mediating spatial or global attention, or a hemispheric asymmetry in the ability to spatially disengage attention. With aging, this leftward bias is reduced, likely due to the aging-related deterioration of right hemisphere mediated functions (right hemi-aging) or hemispheric asymmetry reduction in old adults (HAROLD). METHODS: Forty-seven healthy adults divided into younger and older groups performed a modified Posner spatial-attentional task. RESULTS: Overall, younger individuals responded faster to left than right-sided imperative stimuli. In contrast, older participants did not reveal a right-left asymmetry to imperative stimuli. The younger group also revealed a strong inverse relationship between the reaction time to right valid cues and the leftward attentional bias while performing the line bisection task (pseudoneglect). CONCLUSIONS: Our results provide support for both the right hemisphere spatial-attentional dominance hypothesis of pseudoneglect and the right hemi-aging hypotheses.


Assuntos
Envelhecimento/fisiologia , Atenção/fisiologia , Lateralidade Funcional/fisiologia , Desempenho Psicomotor/fisiologia , Percepção Espacial/fisiologia , Adulto , Fatores Etários , Idoso , Sinais (Psicologia) , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Tempo de Reação/fisiologia , Adulto Jovem
14.
Sci Rep ; 9(1): 11492, 2019 08 07.
Artigo em Inglês | MEDLINE | ID: mdl-31391541

RESUMO

Procrastination is a self-regulatory failure in which people voluntarily but irrationally delay important tasks. Trait procrastination is estimated to affect 15-20% of the total population and leads to a significant decrease in performance, satisfaction with achievements, and quality of life. Procrastination is related to impulsivity and reduced executive control, especially in the domain of inhibition. Moreover, procrastinatory tendencies seem to increase with negative affect, suggesting impaired emotion regulation. The aim of this study was to investigate the neuronal mechanisms of inhibition, error processing, and behavioral control under pressure of punishment in procrastinators. Non-student subjects recruited to low (LP) and high procrastination (HP) groups performed an fMRI monetary Go/No-go task. HP showed significantly lower error-related activity in ACC than LP. There was also a significant group by condition interaction in the ACC and right DLPFC suggesting increase of control during the punishment condition in LP but not HP group. These results suggest that procrastinators have impaired error processing mechanisms which may add to the persistence of procrastination through difficulties in correction of faulty behaviors. Procrastination also seems to be related to a decreased ability to intensify self-control in more demanding situations and/or impaired coping in the context of negative situations.


Assuntos
Afeto/fisiologia , Córtex Pré-Frontal/fisiologia , Procrastinação/fisiologia , Punição/psicologia , Autocontrole/psicologia , Adaptação Psicológica , Adulto , Função Executiva/fisiologia , Feminino , Humanos , Comportamento Impulsivo/fisiologia , Imageamento por Ressonância Magnética , Masculino , Córtex Pré-Frontal/diagnóstico por imagem
15.
Psychiatry Res ; 274: 358-364, 2019 04.
Artigo em Inglês | MEDLINE | ID: mdl-30851599

RESUMO

Numerous studies have shown dysfunctional mechanism of interaction between bottom-up emotional and top-down cognitive processes in persons with schizophrenia (SCZ). During the emotional directed forgetting (DF) paradigm participants have to apply volitional mechanisms to resist automatic emotional enhancement of the memory. Here we sought to compare mechanisms underlying emotional DF in SCZ and in healthy persons (HC). Eighteen SCZ and eighteen HC completed a DF paradigm with neutral and negative pictures. EEG was recorded during study and test phase of the task. We analyzed both the behavioral outcomes and event-related potential components, indicating emotional enhancement of memory (Late Positive Potential elicited by pictures) and DF strategies (N2/P3 elicited by forget/remember cues during study-phase; "old/new" and "reversed old/new" effects during test-phase of the task). Directed forgetting effects and emotional enhancement of memory were observed in both groups, even despite overall lower recognition rates in SCZ. Furthermore, cue presentation elicited similar pattern of N2/P3s in SCZ and in HC. However, "reversed old/new" effect was observed only in HC for negative stimuli. Patients may show similar reaction to affective stimuli as healthy controls during the emotional DF task. However, further investigation is needed to elicit the specific mechanisms underlying the DF strategies in SCZ.


Assuntos
Memória/fisiologia , Fenômenos Fisiológicos do Sistema Nervoso , Esquizofrenia/fisiopatologia , Psicologia do Esquizofrênico , Adulto , Sinais (Psicologia) , Eletroencefalografia , Emoções/fisiologia , Potenciais Evocados/fisiologia , Feminino , Humanos , Masculino , Rememoração Mental/fisiologia
16.
J Clin Psychol ; 74(6): 1034-1052, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29380877

RESUMO

OBJECTIVE: The Mental Health Continuum-Short Form (MHC-SF) is a brief scale measuring positive human functioning. The study aimed to examine the factor structure and to explore the cross-cultural utility of the MHC-SF using bifactor models and exploratory structural equation modelling. METHOD: Using multigroup confirmatory analysis (MGCFA) we examined the measurement invariance of the MHC-SF in 38 countries (university students, N = 8,066; 61.73% women, mean age 21.55 years). RESULTS: MGCFA supported the cross-cultural replicability of a bifactor structure and a metric level of invariance between student samples. The average proportion of variance explained by the general factor was high (ECV = .66), suggesting that the three aspects of mental health (emotional, social, and psychological well-being) can be treated as a single dimension of well-being. CONCLUSION: The metric level of invariance offers the possibility of comparing correlates and predictors of positive mental functioning across countries; however, the comparison of the levels of mental health across countries is not possible due to lack of scalar invariance. Our study has preliminary character and could serve as an initial assessment of the structure of the MHC-SF across different cultural settings. Further studies on general populations are required for extending our findings.


Assuntos
Saúde Global/estatística & dados numéricos , Saúde Mental/estatística & dados numéricos , Satisfação Pessoal , Escalas de Graduação Psiquiátrica/normas , Psicometria/normas , Adolescente , Adulto , Comparação Transcultural , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Psicometria/instrumentação , Adulto Jovem
17.
Respir Med ; 128: 7-12, 2017 07.
Artigo em Inglês | MEDLINE | ID: mdl-28610672

RESUMO

BACKGROUND: Anxiety and panic attacks are more common in chronic obstructive pulmonary disease (COPD) than in the overall population. Individuals with panic attacks often attempt to avoid situations perceived as at risk of eliciting bodily sensations such as dyspnea, which paradoxically may lead to anxiety-related responsivity. Although there is some evidence that COPD individuals restrict their participation in various life activities because they fear that these may trigger breathlessness, little is known about agoraphobic avoidance and its impact on cognitions and emotional distress in this population. It was thus our aim to investigate the degree of agoraphobic avoidance in COPD individuals, its clinical concomitants and consequences. METHODS: A total of 48 patients with COPD and 48 matched controlled subjects completed measures of anxiety sensitivity, agoraphobic avoidance, anxiety and depression. Objective COPD severity was measured using forced expiratory volume in the first second. RESULTS: Patients showed significant impairment in respiratory functioning and psychological distress. Relative to the control, the COPD group exhibited greater depression, anxiety, physical symptom concerns and avoidance (alone and accompanied), irrespective of whether they were panickers or not. Patients with high avoidance showed more intense physical concerns when compared to those with low avoidance. Importantly, the level of avoidance predicted emotional distress and increased physical concerns in COPD. CONCLUSIONS: Physical concerns scores in COPD patients are partially explained by avoidance in this group. The results of the study provide evidence for the importance of evaluating avoidance in COPD patients and implicate targeting this behavior in therapeutic interventions.


Assuntos
Agorafobia/psicologia , Aprendizagem da Esquiva , Doença Pulmonar Obstrutiva Crônica/psicologia , Estresse Psicológico/psicologia , Idoso , Idoso de 80 Anos ou mais , Agorafobia/complicações , Agorafobia/epidemiologia , Ansiedade/complicações , Ansiedade/psicologia , Depressão/complicações , Depressão/psicologia , Dispneia/complicações , Dispneia/psicologia , Emoções/fisiologia , Medo/psicologia , Feminino , Volume Expiratório Forçado/fisiologia , Voluntários Saudáveis/psicologia , Humanos , Masculino , Pessoa de Meia-Idade , Pânico/fisiologia , Transtorno de Pânico/psicologia , Percepção , Doença Pulmonar Obstrutiva Crônica/complicações , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Doença Pulmonar Obstrutiva Crônica/fisiopatologia , Índice de Gravidade de Doença , Estresse Psicológico/epidemiologia
18.
Front Psychol ; 8: 274, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28316576

RESUMO

Although emotions have been assumed conventionally to be universal, recent studies have suggested that various aspects of emotions may be mediated by cultural background. The purpose of our research was to test these contradictory views, in the case of the subjective evaluation of visual affective stimuli. We also sought to validate the recently introduced Nencki Affective Picture System (NAPS) database on a different cultural group. Since there has been, to date, no attempt to compare the emotions of a culturally distinct sample of Iranians with those of Europeans, subjective ratings were collected from 40 Iranians and 39 Europeans. Each cultural group was asked separately to provide normative affective ratings and classify pictures according to discrete emotions. The results were analyzed to identify cultural differences in the ratings of individual images. One hundred and seventy NAPS pictures were rated with regard to the intensity of the basic emotions (happiness, sadness, fear, surprise, anger, and disgust) they elicited, as well as in terms of affective dimensions (valence and arousal). Contrary to previous studies using the International Affective Picture System, our results for Europeans and Iranians show that neither the ratings for affective dimensions nor for basic emotions differed across cultural groups. In both cultural groups, the relationship between valence and arousal ratings could be best described by a classical boomerang-shaped function. However, the content of the pictures (animals, faces, landscapes, objects, or people) had a significant effect on the ratings for valence and arousal. These findings indicate that further studies in cross-cultural affective research should control for the content of stimuli.

19.
Behav Res Methods ; 49(4): 1407-1419, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-27613018

RESUMO

Emotionally charged pictorial materials are frequently used in phobia research, but no existing standardized picture database is dedicated to the study of different phobias. The present work describes the results of two independent studies through which we sought to develop and validate this type of database-a Set of Fear Inducing Pictures (SFIP). In Study 1, 270 fear-relevant and 130 neutral stimuli were rated for fear, arousal, and valence by four groups of participants; small-animal (N = 34), blood/injection (N = 26), social-fearful (N = 35), and nonfearful participants (N = 22). The results from Study 1 were employed to develop the final version of the SFIP, which includes fear-relevant images of social exposure (N = 40), blood/injection (N = 80), spiders/bugs (N = 80), and angry faces (N = 30), as well as 726 neutral photographs. In Study 2, we aimed to validate the SFIP in a sample of spider, blood/injection, social-fearful, and control individuals (N = 66). The fear-relevant images were rated as being more unpleasant and led to greater fear and arousal in fearful than in nonfearful individuals. The fear images differentiated between the three fear groups in the expected directions. Overall, the present findings provide evidence for the high validity of the SFIP and confirm that the set may be successfully used in phobia research.


Assuntos
Nível de Alerta , Medo/psicologia , Transtornos Fóbicos/psicologia , Estimulação Luminosa , Adulto , Animais , Sangue , Bases de Dados como Assunto , Emoções , Feminino , Humanos , Injeções , Masculino , Fobia Social , Reprodutibilidade dos Testes , Aranhas , Adulto Jovem
20.
Brain Imaging Behav ; 11(3): 829-845, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-27194564

RESUMO

In the present simultaneous EEG/ECG-fMRI study we compared the temporal and spatial characteristics of the brain responses and the cardiac activity during fear picture processing between spider, blood-injection-injury (BII) and social fearful as well as healthy (non-fearful) volunteers. All participants were presented with two neutral and six fear-related blocks of pictures: two social, two spider and two blood/injection fear blocks. In a social fear block neutral images were occasionally interspersed with photographs of angry faces and social exposure scenes. In spider and blood/injection fear blocks neutral pictures were interspersed with spider fear-relevant and blood/injection pictures, respectively. When compared to healthy controls the social fear group responded with increased activations in the anterior orbital, middle/anterior cingulate and middle/superior temporal areas for pictures depicting angry faces and with a few elevated superior frontal activations for social exposure scenes. In the blood/injection fear group, heart rate was decreased and the activity in the middle/inferior frontal and visual processing regions was increased for blood/injection pictures. The HR decrease for blood/injection pictures correlated with increased frontal responses. In the spider fear group, spider fear-relevant pictures triggered increased activations within a broad subcortical and cortical neural fear network. The HR response for spider fear-relevant stimuli was increased and correlated with an increased insula and hippocampus activity. When compared to healthy controls, all fear groups showed higher LPP amplitudes for their feared cues and an overall greater P1 hypervigilance effect. Contrasts against the fear control groups showed that the increased responses for fear-specific stimuli are mostly related to specific fears and not to general anxiety proneness. The results suggest different engagement of cognitive evaluation and down-regulation strategies and an overall increased sensitization of the fear system in the three fear groups.


Assuntos
Encéfalo/fisiopatologia , Eletrocardiografia , Eletroencefalografia , Imageamento por Ressonância Magnética , Transtornos Fóbicos/fisiopatologia , Percepção Visual/fisiologia , Animais , Nível de Alerta/fisiologia , Encéfalo/diagnóstico por imagem , Mapeamento Encefálico , Potenciais Evocados , Medo , Feminino , Frequência Cardíaca , Humanos , Injeções , Masculino , Testes Neuropsicológicos , Transtornos Fóbicos/diagnóstico por imagem , Transtornos Fóbicos/etiologia , Percepção Social , Aranhas , Adulto Jovem
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