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1.
Q J Exp Psychol (Hove) ; : 17470218241281694, 2024 Sep 28.
Artigo em Inglês | MEDLINE | ID: mdl-39219535

RESUMO

Vogt et al. (2011) investigated the role of goal-relevance in attention. Specifically, they induced the emotional state of disgust and showed an attentional bias (AB) to goal-related stimuli (i.e., cleanliness pictures) using the dot-probe task. In two experiments, we tested (a) an alternative interpretation and (b) the role of an important methodological feature of the dot-probe task. As the effect can be interpreted alternatively as affective counter-regulation (i.e., cleanliness-related pictures attracted attention because they are positive in the negative disgust state), we added positive stimuli to test whether the AB in the disgust state extends to these stimuli. In Experiment 1, we used the location dot-probe task. That is, participants had to categorise the location of the target. It can be argued that this task confounds attentional processes with response priming processes. In Experiment 2, we used a discrimination dot-probe task, that is, participants had to categorise a target feature that varied orthogonally to location, thus eliminating the confound. In Experiment 1, we did not replicate the effect of emotional state on AB for cleanliness stimuli, whereas in Experiment 2, we did. Mean AB scores for positive stimuli were not affected by emotional state. Two conclusions were drawn: First, the result of Experiment 2 supports the motivational account of Vogt and colleagues. Second, the results support the use of the discrimination task for both theoretical reasons (i.e., effects can be more clearly interpreted as based on attentional processes) and empirical reasons (i.e., the location task did not replicate the expected pattern).

2.
Arch Sex Behav ; 53(9): 3365-3378, 2024 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-39134733

RESUMO

Attentional bias toward addiction-related stimuli has been implicated in the development and maintenance of addiction disorders. Several previous studies have reported an attentional bias toward pornographic cues in individuals with problematic pornography use (PPU). Since attentional bias can occur without conscious awareness, the purpose of this study was to use electroencephalography to examine whether individuals with a high tendency for PPU exhibit attentional bias at the level of the preconscious processing. Event-related potentials (ERPs) were recorded while male participants with high (n = 24) and low (n = 23) levels of subclinical PPU performed a masked version of the dot-probe task measuring attentional bias toward subliminally presented pornographic stimuli. Behavioral data revealed that participants from both groups with high and low tendencies for PPU reacted faster to probes replacing pornographic images than to probes replacing neutral images. ERPs revealed that individuals with a high tendency for PPU exhibited larger probe-locked P1 amplitudes following masked pornographic images (valid condition) compared with masked neutral images (invalid condition). Additionally, PPU symptom severity correlated positively with the P1 amplitude difference between valid and invalid conditions. These results highlight the automaticity of attentional capture by pornographic stimuli and support the hypothesis of an addiction-related attentional bias during preconscious processes. The implication of these findings for understanding the clinical phenomenon of out-of-control addictive behavior are discussed.


Assuntos
Viés de Atenção , Sinais (Psicologia) , Eletroencefalografia , Literatura Erótica , Potenciais Evocados , Humanos , Masculino , Literatura Erótica/psicologia , Viés de Atenção/fisiologia , Potenciais Evocados/fisiologia , Adulto , Adulto Jovem , Comportamento Aditivo/psicologia , Comportamento Aditivo/fisiopatologia , Atenção/fisiologia , Tempo de Reação/fisiologia , Estimulação Subliminar
3.
J Behav Addict ; 13(3): 807-822, 2024 Oct 04.
Artigo em Inglês | MEDLINE | ID: mdl-39088275

RESUMO

Background and aims: Previous evidence has indicated that problematic social media use (PSMU) is characterized by an attentional bias to social media icons (such as Facebook icons), but not to social webpages (such as Facebook webpages). They suggest that there may be other factors influencing attentional bias like fear of missing out (FoMO). But it remains unclear how FoMO moderates attentional bias in PSMU. This study aims to investigate whether PSMU show attentional bias for stimuli associated with social media, and how FoMO moderates on attentional bias among PSMU through experimental methods. Methods: Based on the Interaction of Person-Affect-Cognition-Execution (I-PACE) model, this study explored mechanisms of attentional bias to social media icons (such as WeChat) related to PSMU and further examined the role of FoMO in this relationship. Specifically, attentional bias patterns to social media icons of 62 participants (31 PSMU and 31 control group) were explored during a dot-probe paradigm combined with eye-tracking in Experiment 1, and attentional bias patterns to social media icons of another 61 individuals with PSMU with different FoMO levels was explored during a dot-probe paradigm combined with eye-tracking in Experiment 2. Results: Results revealed that individuals with PSMU had an attentional bias toward social media icons, demonstrated by attentional maintenance, and such bias such bias was moderated by FoMO negatively, demonstrated by attentional vigilance and maintenance in PSMU/high FoMO. Conclusion: These results suggest that attentional bias is a common mechanism associated with PSMU, and FoMO is a key factor on the development of PSMU.


Assuntos
Viés de Atenção , Medo , Mídias Sociais , Humanos , Viés de Atenção/fisiologia , Feminino , Masculino , Adulto Jovem , Medo/fisiologia , Adulto , Transtorno de Adição à Internet/psicologia , Tecnologia de Rastreamento Ocular , Adolescente
4.
J Behav Ther Exp Psychiatry ; 85: 101988, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-39142095

RESUMO

BACKGROUND: Social anxious individuals show attention bias towards emotional stimuli, this phenomenon is considered to be an important cause of anxiety generation and maintenance. Cognitive-behavioral therapy (CBT) is a standard psychotherapy for social anxiety disorder. CBT decreases attention biases by correcting the maladaptive beliefs of socially anxious individuals, but it is not clear whether CBT alters neurophysiological features of socially anxious individuals at early automatic and/or late cognitive strategy stage of attentional processing. METHOD: To address this knowledge gap, we collected pre-treatment event-related potential data of 22 socially anxious individuals while they performed a dot-probe task. These participants then received eight weeks of CBT, and post-treatment ERP data were collected after completion of CBT treatment. We also included 29 healthy controls and compared them with individuals with social anxiety to determine the neural mechanisms underlying the effectiveness of CBT. RESULTS: Participants' social anxiety level was significantly alleviated with CBT. ERP results revealed that (1) compared to pre-treatment phase, P1 amplitudes induced by probes significantly decreased at post-treatment phase, whereas P3 amplitudes increased at post-treatment phase; the P1 amplitudes induced by probes following happy-neutral face pairs in socially anxious individuals after treatment was significantly different with that in healthy controls; (2) amplitude of components elicited by face pairs did not change significantly between pre-treatment and post-treatment phases; (3) changes of Liebowitz Social Anxiety Scale were positively correlated with changes of P1 amplitude, and negatively correlated with changes of N1 amplitude. LIMITATIONS: Our sample was university students and lacked randomization, which limits the generalizability of the results. CONCLUSION: The present results demonstrated that CBT may adjust cognitive strategies in the later stage of attentional processing, indicating by changed ERPs appeared in probe-presenting stage for social anxiety.


Assuntos
Terapia Cognitivo-Comportamental , Eletroencefalografia , Potenciais Evocados , Fobia Social , Humanos , Feminino , Masculino , Terapia Cognitivo-Comportamental/métodos , Potenciais Evocados/fisiologia , Adulto , Adulto Jovem , Fobia Social/fisiopatologia , Fobia Social/terapia , Viés de Atenção/fisiologia
5.
BMC Psychol ; 12(1): 459, 2024 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-39210484

RESUMO

BACKGROUND: Attentional processes are influenced by both stimulus characteristics and individual factors such as mood or personal experience. Research has suggested that attentional biases to socially relevant stimuli may occur in individuals with a history of peer victimization in childhood and adolescence. Based on this, the present study aimed to examine attentional processes in response to emotional faces at both the behavioral and neurophysiological levels in participants with experiences of peer victimization. METHODS: In a sample of 60 adult participants with varying severity of retrospectively reported peer victimization in childhood and adolescence, the dot-probe task was administered with angry, disgusted, sad, and happy facial expressions. In addition to behavioral responses, physiological responses (i.e., event-related potentials) were analyzed. RESULTS: Analyses of mean P100 and P200 amplitudes revealed altered P200 amplitudes in individuals with higher degrees of peer victimization. Higher levels of relational peer victimization were associated with increased P200 amplitudes in response to facial expressions, particularly angry and disgusted facial expressions. Hierarchical regression analyses showed no evidence for an influence of peer victimization experiences on reaction times or P100 amplitudes in response to the different emotions. CONCLUSION: Cortical findings suggest that individuals with higher levels of peer victimization mobilize more attentional resources when confronted with negative emotional social stimuli. Peer victimization experiences in childhood and adolescence appear to influence cortical processes into adulthood.


Assuntos
Atenção , Emoções , Potenciais Evocados , Expressão Facial , Humanos , Masculino , Feminino , Potenciais Evocados/fisiologia , Adulto , Emoções/fisiologia , Adulto Jovem , Atenção/fisiologia , Eletroencefalografia , Grupo Associado , Bullying/psicologia , Vítimas de Crime/psicologia , Reconhecimento Facial/fisiologia , Estudos Retrospectivos , Adolescente
6.
BMC Psychiatry ; 24(1): 508, 2024 Jul 17.
Artigo em Inglês | MEDLINE | ID: mdl-39020338

RESUMO

BACKGROUND: According to the cognitive behavioral model of social anxiety, attentional bias to negative emotional information causes and maintains anxiety. The goal of attentional bias modification (ABM) is to reduce anxiety by reducing attention bias to negative emotional information. METHOD: We used questionnaires and experiments to explore the improvement effect of ABM training on social anxiety in college students. In Study 1, we used dot-probe tasks to investigate the attentional bias to negative emotional information and the relationship with social anxiety severity in college students. In Study 2, college students with high social anxiety were divided into two groups: attentional bias modification training task group (ABM) and attention control condition task group (ACC). The ABM group received a continuous intervention for 10 days to observe changes in social anxiety levels and attentional bias scores in the pretest and posttest stages. RESULTS: The results showed that the correlation of attentional bias to negative emotional information and social anxiety severity was significant. Meanwhile, the high social anxiety participants responded more quickly to negative emotional information. After the intervention, social anxiety levels and attentional bias scores of the training group were significantly reduced. CONCLUSIONS: The results showed that attentional bias modification training can reduce attentional bias to negative emotional information in college students with social anxiety and effectively improve their social anxiety.


Assuntos
Viés de Atenção , Emoções , Humanos , Masculino , Feminino , Adulto Jovem , Ansiedade/psicologia , Ansiedade/terapia , Estudantes/psicologia , Terapia Cognitivo-Comportamental/métodos , Adulto , Adolescente , Inquéritos e Questionários , Fobia Social/psicologia , Fobia Social/terapia
7.
Psychoneuroendocrinology ; 165: 107031, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38581746

RESUMO

INTRODUCTION: Selective attention to salient emotional information can enable an advantage in the face of danger. The present study aims to investigate the influence of the stress neuromodulators, norepinephrine and cortisol, on selective attention processes to fearful faces and its neuronal activation. METHODS AND MATERIALS: We used a randomized, double-blind, placebo-controlled design. 167 healthy men between 18 and 35 years (mean [SD] age: 25.23 [4.24] years) participated in the study. Participants received either: (A) yohimbine (n= 41), (B) hydrocortisone (n = 41), (C) yohimbine and hydrocortisone (n = 42) or (D) placebo only (n= 43) and participated in a dot-probe task with fearful and neutral faces in an fMRI scanner. RESULTS: We found an attentional bias toward fearful faces across all groups and related neuronal activation in the left cuneus. We did not find any differences between experimental treatment groups in selective attention and its neuronal activation. DISCUSSION: Our results provide evidence that fearful faces lead to an attentional bias with related neuronal activation in the left cuneus. We did not replicate formerly reported activation in the amygdala, intraparietal sulcus, dorsal anterior cingulate cortex, and thalamus. Suitability of the dot-probe task for fMRI studies and insignificant treatment effects are discussed.


Assuntos
Atenção , Expressão Facial , Medo , Hidrocortisona , Imageamento por Ressonância Magnética , Ioimbina , Humanos , Masculino , Imageamento por Ressonância Magnética/métodos , Adulto , Medo/efeitos dos fármacos , Medo/fisiologia , Hidrocortisona/metabolismo , Hidrocortisona/farmacologia , Ioimbina/farmacologia , Método Duplo-Cego , Adulto Jovem , Atenção/efeitos dos fármacos , Atenção/fisiologia , Adolescente , Viés de Atenção/efeitos dos fármacos , Viés de Atenção/fisiologia , Reconhecimento Facial/efeitos dos fármacos , Reconhecimento Facial/fisiologia , Encéfalo/efeitos dos fármacos , Encéfalo/diagnóstico por imagem , Encéfalo/fisiologia , Tonsila do Cerebelo/efeitos dos fármacos , Tonsila do Cerebelo/diagnóstico por imagem , Tonsila do Cerebelo/fisiologia , Emoções/efeitos dos fármacos , Emoções/fisiologia
8.
Int J Dev Disabil ; 70(2): 268-277, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38481455

RESUMO

Background: Circumscribed interests (CIs) are regarded as one of the common symptoms for individuals with autism spectrum disorder (ASD). Although some studies have found attentional bias toward CI-related stimuli for individuals with ASD, few studies have directly explored the reasons for these findings. Method: Children with ASD (n = 15) and age-matched typically developing (TD) children (n = 15) completed a Stroop-like task and a modified dot-probe task, and their reaction times were measured. The stimuli of these tasks included neutral objects and objects related to CI for individuals with ASD. Results: Children with ASD had longer reaction times to name colors of CI-related stimuli than neutral stimuli in the Stroop-like task. Similarly, in the modified dot-probe task, if the CI-related stimulus was presented simultaneously with the neutral stimulus, children with ASD responded faster to the target that appeared in the previous location of the CI-related stimulus (i.e. congruent condition) than to the neutral stimulus (i.e. incongruent condition). Importantly, the reaction times of children with ASD in the incongruent condition were significantly slower than in the baseline condition, where both neutral stimuli were displayed simultaneously with stimulus-onset asynchrony (SOA) of 500 ms. In contrast, there was no significant difference in reaction times to CI-related stimuli and neutral stimuli in both tasks for TD children. Conclusions: These findings suggest children with ASD have attentional bias toward CI-related stimuli, because of difficulty disengaging attention from CI-related stimuli with SOA of 500 ms.

9.
Psych J ; 13(3): 387-397, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38530875

RESUMO

Recent research has indicated that attractive faces often cause a dilation of our time perception thus affecting physical and mental health, and speculates that this could be relevant to the fact that attractive faces capture people's attention. Nevertheless, there was no direct experimental data to support this speculation. The present work was designed to illustrate how attention affects time perception of facial attractiveness. It utilized two experiments to investigate this phenomenon. In Experiment 1, perception of timing and attention bias were assessed using a temporal reproduction task and a dot-probe task. Increased attention bias was found to mediate the time dilation effect of facial attractiveness. Experiment 2 adopted dual-task paradigm, combining a temporal reproduction task and attractiveness rating task, to manipulate attention allocation. The findings suggested that allocating more attention to the task requiring timing enhanced the time dilation effect caused by the faces. Results of Experiments 1 and 2 converge to show that attention plays an essential role in the effects of facial attractiveness on time perception.


Assuntos
Atenção , Beleza , Percepção do Tempo , Humanos , Atenção/fisiologia , Feminino , Masculino , Adulto , Adulto Jovem , Percepção do Tempo/fisiologia , Reconhecimento Facial/fisiologia
10.
Front Psychol ; 15: 1290890, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38356767

RESUMO

Addiction-related attentional biases may play a central role in the development and maintenance of drug-seeking and drug-taking behaviors. However, evidence in cocaine dependence is limited and mixed. This study examined the time course and component processes of attentional biases for cocaine-related cues in a sample of 47 outpatients (38 men) with cocaine use disorder (CUD) with varying durations of current abstinence. Reaction times in a visual dot-probe task with two picture exposure durations -500 ms, to assess initial stages of attention, and 2,000 ms, to assess maintained attention- were recorded. We found faster responses to probes replacing cocaine-related vs. matched control pictures in the 500 ms but not in the 2,000 ms condition, indicative of early but not late attentional biases for cocaine cues in abstinent patients with CUD. Further comparisons with a neutral baseline revealed that it was not due to rapid orienting but to delayed disengagement from cocaine-related pictures, being this effect greater the longer the period of current abstinence. Consistent with the incentive-sensitization theory, these data suggest that cocaine-related stimuli maintain the capacity to hold spatial attention in abstinent patients with CUD, even after months of abstinence, highlighting the relevance of carrying out stimulus control to avoid relapses.

11.
Eat Behav ; 52: 101842, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38211374

RESUMO

BACKGROUND: Eating too much sugar is associated with many negative health effects. Two brief online interventions were carried out to investigate whether information about the negative consequences of eating high-sugar food vs. positive consequences of eating low-sugar food can change reported appetite, mood, and visual food cue attention. METHOD: For Study I, participants (n = 201) were allocated to one of three groups: Two groups were asked to list either the negative consequences of high-sugar consumption (negative focus) or the positive consequences of low-sugar consumption (positive focus). The third group carried out a control task (writing a shopping list). For Study II, 200 participants took part in a quiz with questions focusing on either positive, negative, or neutral consequences of high vs. low sugar consumption. Participants evaluated their appetite and mood before and after all interventions (list, quiz) and additionally completed a visual probe task with images depicting high vs. low-sugar food. RESULTS: In Study I, the positive focus increased appetite for low-sugar food. The negative focus reduced participants' positive mood but did not change reported appetite. In Study II, all quiz conditions decreased appetite for high-sugar foods but did not affect mood. None of the interventions influenced visual attention to the food images. CONCLUSION: Focusing on negative consequences of a high-sugar diet is less pleasant and is less effective in changing people's appetite than considering the positive aspects of a low-sugar diet. Thus, future interventions should instead spotlight the positive outcomes of a healthy diet.


Assuntos
Apetite , Intervenção Baseada em Internet , Humanos , Açúcares , Sinais (Psicologia) , Açúcares da Dieta
12.
Cogn Process ; 25(1): 53-60, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37750971

RESUMO

Numerous studies have suggested that threatening stimuli induce a spatial attention bias; however, only a few studies have investigated spatial attention biases for disgusting stimuli. Moreover, past studies generally reported that the spatial attention bias to disgusting images is not robustly in normal individuals. We hypothesized that this was due to the unfamiliar of the images, so we prepared the creature's images that were clearly categorized as disgusting and examined the effects of disgusting images on spatial attention bias. A disgusting or an emotionally neutral image was paired and presented with an (emotionally neutral) filler image. After a temporal interval, a target appeared at either the position where a disgusting or a neutral image was presented (valid condition) or where a filler image was presented (invalid condition). Participants pressed a key corresponding to the target's position as quickly and accurately as possible. We varied the position-response correspondence among three experiments. The results showed that the RTs in the invalid condition was longer for the disgusting images than for the neutral images when the position of a disgusting image was not naturally associated with the left-right hand position. We interpreted the results in that that disgusting images generally slowed down attentional disengagement process but the manual responses were inhibited for the position where a disgusting image appeared when the locations of keys and targets were congruent. The present results suggest that disgusting images affect not only attentional processes but also manual responses related to the selection and initiation of responses.


Assuntos
Viés de Atenção , Emoções , Humanos , Emoções/fisiologia , Cognição , Sinais (Psicologia) , Estimulação Luminosa
13.
Cogn Emot ; 38(2): 217-231, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37987765

RESUMO

Two recent articles [Gronchi et al., 2018. Automatic and controlled attentional orienting in the elderly: A dual-process view of the positivity effect. Acta Psychologica, 185, 229-234; Wirth & Wentura, 2020. It occurs after all: Attentional bias towards happy faces in the dot-probe task. Attention, Perception, & Psychophysics, 82(5), 2463-2481] report attentional biases for happy facial expressions in the dot-probe paradigm, albeit in different directions. While Wirth and Wentura report a bias towards happy expressions, Gronchi et al. found a reversed effect. A striking difference between the studies was the task performed by the participants. While in Wirth and Wentura, participants performed a discrimination task, they performed a location task in Gronchi et al. In Experiment 1, we directly compared the two versions of the dot-probe paradigm. With the discrimination task, the bias towards happy faces was replicated. However, the location task yielded a null effect. In Experiment 2, we found a cueing effect with an abrupt onset cue in both tasks. However, for the location task a congruence-sequence effect (a typical characteristic of response-priming processes) occurred. This result suggests that in the location task, attentional processes are confounded with response-priming processes. We recommend to generally use discrimination tasks.


Assuntos
Viés de Atenção , Humanos , Idoso , Emoções , Tempo de Reação , Atenção , Felicidade , Expressão Facial
14.
J Behav Ther Exp Psychiatry ; 82: 101918, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-37907019

RESUMO

BACKGROUND AND OBJECTIVES: Cognitive bias theories posit that generalized anxiety disorder (GAD) and social anxiety disorder (SAD) are entwined with attention bias toward threats, commonly indexed by faster response time (RT) on threat-congruent (vs. threat-incongruent) trials on the visual dot probe. Moreover, although smartphone ecological momentary assessment (EMA) of the visual dot probe has been developed, their psychometric properties are understudied. This study thus aimed to assess the reliability of 8 smartphone-delivered visual dot probe attention bias and related indices in persons with and without GAD and SAD. METHODS: Community-dwelling adults (n = 819; GAD: 64%; SAD: 49%; Mixed GAD and SAD: 37%; Non-GAD/SAD Controls: 24%) completed a five-trial smartphone-delivered visual dot probe for a median of 60 trials (12 sessions x 5 trials/session) and an average of 100 trials (20 sessions x 5 trials/session). RESULTS: As hypothesized, Global Attention Bias Index, Disengagement Effect, and Facilitation Bias had low-reliability estimates. However, retest-reliability and internal reliability were good for Trial-Level Bias Scores (TLBS) (Bias Toward Treat: intra-class correlation coefficients (ICCs) = 0.626-0.644; split-half r = 0.640-0.670; Attention Bias Variability: ICCs = 0.507-0.567; split-half r = 0.520-0.580) and (In)congruent RTs. Poor retest-reliability and internal reliability estimates were consistently observed for all traditional attention bias and related indices but not TLBS. LIMITATIONS: Our visual dot probe EMA should have administered ≥320 trials to match best-practice guidelines based on similar laboratory studies. CONCLUSIONS: Future research should strive to examine attention bias paradigms beyond the dot-probe task that evidenced meaningful test-retest reliability properties in laboratory and real-world naturalistic settings.


Assuntos
Viés de Atenção , Fobia Social , Adulto , Humanos , Avaliação Momentânea Ecológica , Reprodutibilidade dos Testes , Smartphone , Transtornos de Ansiedade , Viés de Atenção/fisiologia
15.
Front Psychiatry ; 14: 1254349, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38034921

RESUMO

Introduction: Anxious individuals selectively attend to threatening information, but it remains unclear whether attentional bias can be generalized to traumatic events, such as the COVID-19 pandemic. Previous studies suggested that specific threats related to personal experiences can elicit stronger attentional bias than general threats. The current study aimed to investigate the relationship between content-specific attentional bias and trait anxiety during the COVID-19 pandemic. Methods: Attentional bias was assessed using the dot-probe task with COVID-19-related, general threat-related, and neutral words at two exposure times, 200 and 500 ms. Results: We found participants with high trait anxiety exhibited attentional bias toward COVID-19- related stimuli and attentional bias away from general threat-related stimuli, while participants with low trait anxiety showed attentional bias away from both types of stimuli. Discussion: Results suggest that individuals with high trait anxiety show a content-specific attentional bias to COVID-19-related information during the COVID-19 pandemic. Apart from the innate attentional bias toward biological threats, individuals with high trait anxiety may also learn from trauma and develop trauma-specific attentional bias.

16.
Soc Cogn Affect Neurosci ; 18(1)2023 11 30.
Artigo em Inglês | MEDLINE | ID: mdl-37971294

RESUMO

Previous research has shown that attentional bias towards angry faces is moderated by the activation of a social processing mode. More specifically, reliable cueing effects for angry face cues in the dot-probe task only occurred when participants performed a task that required social processing of the target stimuli. However, cueing effects are a rather distal measure of covert shifts in spatial attention. Thus, it remains unclear whether the social processing mode modulates initial allocation of attention to or attentional disengagement from angry faces. In the present study, we used the N2pc, an event-related potential component, as an index of attentional shifts towards angry faces. Participants performed a dot-probe task with two different target conditions while the electroencephalogram (EEG) was recorded. In the social target condition, target stimuli were socially meaningful (schematic faces), and in the non-social target condition, they were meaningless (scrambled schematic faces). The amplitude of the N2pc component elicited by angry face cues was significantly larger in the social target condition than in the non-social target condition. This pattern also occurred for behavioural cueing effects. These results suggest that the activation of a social processing mode due to current task demands affects the initial allocation of attention towards angry faces.


Assuntos
Ira , Expressão Facial , Humanos , Tempo de Reação/fisiologia , Estimulação Luminosa/métodos , Ira/fisiologia , Eletroencefalografia
17.
Artigo em Inglês | MEDLINE | ID: mdl-37980687

RESUMO

There is a growing interest in the potential benefits of attentional bias modification (ABM) training in chronic pain patients. However, studies examining the effectiveness of ABM programs in fibromyalgia patients have demonstrated inconclusive effects on both behavioral indices and clinical symptoms. Additionally, underlying neural dynamics of ABM effects could yield new insights but remain yet unexplored. Current study, therefore, aims to investigate the effects of ABM training on known neural electrophysiological indicators of attentional bias to pain (P2, N2a). Thirty-two fibromyalgia patients were enrolled and randomly assigned to an ABM training (N = 16) or control (N = 16) condition (2 weeks duration). Within the ABM training condition participants performed five sessions consisting of a modified version of the dot-probe task in which patients were trained to avoid facial pain expressions, whereas in the control group participants performed five sessions consisting of a standard version of the dot-probe task. Potential ABM training effects were evaluated by comparing a single pre- and post-treatment session, in which event-related potentials (ERPs) were recorded in response to both facial expressions and target stimuli. Furthermore, patients filled out a series of self-report questionnaires assessing anxiety, depression, pain-related worrying, fear of pain, fatigue and pain status. After training, results indicated an overall reduction of the amplitude of the P2 component followed by an enhancement of N2a amplitude for the ABM condition compared to control condition. In addition, scores on anxiety and depression decreased in patients assigned to the training condition. However, we found no effects derived from the training on pain-related and fatigue status. Present study offers new insights related to the possible neural mechanisms underlying the effect of ABM training in fibromyalgia. Clinical trial (TRN: NCT05905159) retrospectively registered (30/05/2023).

18.
Front Psychiatry ; 14: 1192669, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37743984

RESUMO

Objective: Depression scores in caregivers of autistic children often fall in the clinical range. The attention of clinically depressed individuals tends to be biased toward negatively toned information. Whether caring for an autistic child might also be characterized by a negative attentional bias was explored here. Methods: A sample of N = 98 (57 caregivers and 41 controls) completed questionnaires assessing depressive symptoms. Orienting attention to (i.e., vigilance), and shifting attention away from (i.e., disengagement), negative information was assessed via an online version of the emotional face dot probe task. Results: Mean depression scores in caregivers, falling in the borderline clinical range, were significantly higher compared with controls. Groups, however, were indistinguishable with respect to vigilance and disengagement, and these attentional indices were unrelated to depression scores. Conclusion: Caring for an autistic child, while associated with borderline clinical depression scores, was not characterized by a negative attentional bias. Findings are discussed in the context of methodological shortcomings and recommendations for future research.

19.
Front Hum Neurosci ; 17: 1179142, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37746057

RESUMO

Internet addiction is an emerging issue, impacting people's psychosocial functioning and well-being. However, the prevalence and the mechanisms underlying internet misuse are largely unknown. As with other behavioral addiction disorders, the increase and persistence of internet addiction may be favored by negative affect such as boredom. In this study, we examined the role of boredom susceptibility, as a personality trait, in predicting the risk of internet addiction. Furthermore, we analyzed the attentional mechanisms that may exacerbate dysfunctional internet behaviors. Specifically, we assessed the mediating role of attentional bias toward social media cues on the relation between boredom susceptibility and internet addiction. Sixty-nine young adults were administered a dot-probe task assessing internet-related attentional bias (AB) and questionnaires measuring internet addiction (IAT) and boredom susceptibility (BS-BSSS). Correlation and t-test analyses confirmed that the tendency to experience boredom and selective attention toward social network information was related to internet addiction. Furthermore, the mediation model indicated that AB fully explains the link between BS-BSSS and IAT. The study highlighted the crucial role of selective attentional processing behind internet addiction. The current results are useful for both researchers and clinicians as they suggest that intervention programs for internet addiction should include strategies to cope with dysfunctional cognitive processes.

20.
R Soc Open Sci ; 10(9): 230674, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37736527

RESUMO

Studies suggest that an attentional bias to thin bodies is common among those with high levels of body dissatisfaction, which is a risk factor for, and symptom of, various eating disorders. However, these studies have predominantly been conducted in Western countries with body stimuli involving images of White people. In a preregistered study, we recruited 150 Malaysian Chinese women and 150 White Australian women for a study using standardized images of East Asian and White Australian bodies. To measure attentional bias to thin bodies, participants completed a dot probe task which presented images of women who self-identified their ethnicity as East Asian or as White Australian. Contrary to previous findings, we found no evidence for an association between body dissatisfaction and attentional bias to thin bodies. This lack of association was not affected by participant ethnicity (Malaysian Chinese versus White Australian) or ethnic congruency between participants and body stimuli (own-ethnicity versus other-ethnicity). However, the internal consistency of the dot probe task was poor. These results suggest that either the relationship between body dissatisfaction and attentional bias to thin bodies is not robust, or the dot probe task may not be a reliable measure of attentional bias to body size.

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