ORCID Profile
0000-0003-0087-4843
Current Organisation
Murdoch University
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Publisher: Springer Science and Business Media LLC
Date: 08-04-2020
Publisher: SAGE Publications
Date: 08-2016
DOI: 10.5127/JEP.040313
Abstract: Social anxiety disorder is maintained by biased attentional processing, which may encompass biases in the component engagement, disengagement, and avoidance attentional processes. However, few studies have directly examined whether such biases occur during social-evaluative conditions characteristically feared in social anxiety. The current study presents a novel approach for the assessment of attentional bias. Clinically socially anxious (n = 27) and control (n = 29) participants were required to give a speech in front of a pre-recorded audience displaying emotional social gestures while eye movement was recorded. Socially anxious in iduals avoided attending to positive and threatening stimuli. At the onset of an emotional gesture, control participants were additionally faster to orient towards positive, relative to threatening gestures, while this bias was absent in socially anxious participants. The findings suggest that during conditions of social-evaluative stress, social anxiety is characterized by the attentional avoidance of emotional stimuli, and the absence of an engagement bias favouring positive stimuli.
Publisher: Springer Science and Business Media LLC
Date: 30-10-2018
DOI: 10.1007/S10803-018-3801-9
Abstract: Recent years have seen an emergence of social emotional computer games for in iduals with Autism Spectrum Disorder (ASD). These games are heterogeneous in design with few underpinned by theoretically informed approaches to computer-based interventions. Guided by the serious game framework outlined by Whyte et al. (Journal of Autism and Developmental Disorders 45(12):1-12, 2014), this study aimed to identify the key motivating and learning features for serious games targeting emotion recognition skills from the perspectives of 11 youth with ASD and 11 experienced professionals. Results demonstrated that youth emphasised the motivating aspects of game design, while the professionals stressed embedding elements facilitating the generalisation of acquired skills. Both complementary and differing views provide suggestions for the application of serious game principles in a potential serious game.
Publisher: Elsevier BV
Date: 03-2023
Publisher: Informa UK Limited
Date: 26-01-2023
Publisher: Elsevier BV
Date: 10-2017
DOI: 10.1016/J.JPSYCHIRES.2017.05.008
Abstract: Transcranial direct current stimulation (tDCS) is a neuromodulatory technique which has garnered recent interest in the potential treatment for emotion-based psychopathology. While accumulating evidence suggests that tDCS may attenuate emotional vulnerability, critically, little is known about underlying mechanisms of this effect. The present study sought to clarify this by examining the possibility that tDCS may affect emotional vulnerability via its capacity to modulate attentional bias towards threatening information. Fifty healthy participants were randomly assigned to receive either anodal tDCS (2 mA/min) stimulation to the left dorsolateral prefrontal cortex (DLPFC), or sham. Participants were then eye tracked during a dual-video stressor task designed to elicit emotional reactivity, while providing a concurrent in-vivo measure of attentional bias. Greater attentional bias towards threatening information was associated with greater emotional reactivity to the stressor task. Furthermore, the active tDCS group showed reduced attentional bias to threat, compared to the sham group. Importantly, attentional bias was found to statistically mediate the effect of tDCS on emotional reactivity, while no direct effect of tDCS on emotional reactivity was observed. The findings are consistent with the notion that the effect of tDCS on emotional vulnerability may be mediated by changes in attentional bias, holding implications for the application of tDCS in emotion-based psychopathology. The findings also highlight the utility of in-vivo eye tracking measures in the examination of the mechanisms associated with DLPFC neuromodulation in emotional vulnerability.
Publisher: American Psychological Association (APA)
Date: 06-2012
DOI: 10.1037/A0025592
Abstract: In iduals differ in the extent to which their vulnerability to anxiety is reduced by psychological therapy. However, the cognitive basis for such in idual differences is still poorly understood. To test a cognitive account of differences in anxiety reduction in response to treatment, the present study examined in iduals undergoing group therapy for social anxiety disorder. We assessed whether differences in their readiness to adopt selective attentional processing in response to an experimental contingency predicted positive changes in a range of anxiety measures in response to treatment. Findings were consistent with the position that readiness to alter attentional processing bias may underpin in idual differences in the tendency to respond to positive experiential conditions, such as group therapy, by reducing anxiety vulnerability.
Publisher: Elsevier BV
Date: 10-2020
Publisher: JMIR Publications Inc.
Date: 28-11-2018
DOI: 10.2196/10993
Publisher: Informa UK Limited
Date: 11-04-2012
DOI: 10.1080/16506073.2012.666562
Abstract: Despite the established relationship between social anxiety and attentional bias towards threat, a growing base of evidence suggests that social anxiety is additionally maintained by a deficit in the attentional processing of positive information. However, it remains unclear which component of attention is implicated in this deficit. Using eye movement-based measures and a novel attentional cuing methodology, the present study sought to investigate the presence of anxiety-linked bias in attentional engagement with, attentional disengagement from, and total fixation time to, socially relevant emotional stimuli in in iduals diagnosed with social anxiety disorder, relative to non-socially anxious controls. Socially anxious in iduals were found to exhibit faster attentional disengagement from positive stimuli, and reduced total fixation time to all emotional stimuli, relative to controls. Additionally for socially anxious in iduals, lower total fixation times to positive stimuli were associated with higher levels of state anxiety. No differential pattern of engagement was evident between groups. We conclude that social anxiety is maintained in part by the aberrant processing of positive social stimuli.
Publisher: Elsevier BV
Date: 07-2016
DOI: 10.1016/J.BETH.2016.04.005
Abstract: Theoretical models of social anxiety propose that attention biases maintain symptoms of social anxiety. Research findings regarding the time course of attention and social anxiety disorder have been mixed. Adult attachment style may influence attention bias and social anxiety, thus contributing to the mixed findings. This study investigated the time course of attention toward both negative and positive stimuli for in iduals diagnosed with social anxiety disorder (SAD) and assessed whether attachment style moderates this relationship. One hundred and thirty participants (age: M=29.03) were assessed using a semistructured clinical interview. Those meeting eligibility criteria for the clinical s le met DSM-IV criteria for SAD (n=90, age: M=32.18), while those in the control s le did not meet criteria for any mental disorder (n=23, age: M=26.04, 11 females). All participants completed self-report measures examining depression, social anxiety, adult attachment style, and completed an eye-tracking task used to measure the time course of attention. Eye-tracking data were analysed using growth curve analysis. The results indicate that participants in the control group overall displayed greater vigilance towards emotional stimuli, were faster at initially fixating on the emotional stimulus, and had a greater percentage of fixations towards the emotional stimulus as the stimulus presentation time progressed compared to those in the clinical group. Thus, the clinical participants were more likely to avoid fixating on emotional stimuli in general (both negative and positive) compared to those in the control group. These results support the Clark and Wells (1995) proposal that socially anxious in iduals avoid attending to emotional information. Attachment style did not moderate this association, however anxious attachment was related to greater vigilance toward emotional compared to neutral stimuli.
Publisher: Elsevier BV
Date: 02-2015
DOI: 10.1016/J.PSYCHRES.2014.11.025
Abstract: Social anxiety disorder (SAD) is a debilitating mental illness which is thought to be maintained in part by the aberrant attentional processing of socially relevant information. Critically however, research has not assessed whether such aberrant attentional processing occurs during social-evaluative contexts characteristically feared in SAD. The current study presents a novel approach for the assessment of the visuocognitive biases operating in SAD during a social-evaluative stressor. For this task, clinically socially anxious participants and controls were required to give a brief impromptu speech in front of a pre-recorded audience who intermittently displayed socially positive or threatening gestures. Participant gaze at the audience display was recorded throughout the speech. Socially anxious participants exhibited a significantly longer visual scanpath, relative to controls. In addition, socially anxious participants spent relatively longer time fixating at the non-social regions in between and around the confederates. The findings of the present study suggest that SAD is associated with hyperscanning and the attentional avoidance of social stimuli.
Publisher: Springer Science and Business Media LLC
Date: 13-07-2020
Publisher: Informa UK Limited
Date: 03-09-2020
Publisher: Elsevier BV
Date: 12-2020
Publisher: Elsevier BV
Date: 2015
DOI: 10.1016/J.BIOPSYCHO.2014.12.002
Abstract: Social anxiety is thought to be maintained by biased attentional processing towards threatening information. Research has further shown that the experimental attenuation of this bias, through the implementation of attentional bias modification (ABM), may serve to reduce social anxiety vulnerability. However, the mechanisms underlying ABM remain unclear. The present study examined whether inhibitory attentional control was associated with ABM. A non-clinical s le of participants was randomly assigned to receive either ABM or a placebo task. To assess pre-post changes in attentional control, participants were additionally administered an emotional antisaccade task. ABM participants exhibited a subsequent shift in attentional bias away from threat as expected. ABM participants further showed a subsequent decrease in antisaccade cost, indicating a general facilitation of inhibitory attentional control. Mediational analysis revealed that the shift in attentional bias following ABM was independent to the change in attentional control. The findings suggest that the mechanisms of ABM are multifaceted.
Publisher: IEEE
Date: 07-2018
Publisher: Elsevier BV
Date: 12-2017
DOI: 10.1016/J.JBTEP.2017.02.003
Abstract: Attention bias modification (ABM) procedures have shown promise as a therapeutic intervention, however current ABM procedures have proven inconsistent in their ability to reliably achieve the requisite change in attentional bias needed to produce emotional benefits. This highlights the need to better understand the precise task conditions that facilitate the intended change in attention bias in order to realise the therapeutic potential of ABM procedures. Based on the observation that change in attentional bias occurs largely outside conscious awareness, the aim of the current study was to determine if an ABM procedure delivered under conditions likely to preclude explicit awareness of the experimental contingency, via the addition of a working memory load, would contribute to greater change in attentional bias. Bias change was assessed among 122 participants in response to one of four ABM tasks given by the two experimental factors of ABM training procedure delivered either with or without working memory load, and training direction of either attend-negative or avoid-negative. Findings revealed that avoid-negative ABM procedure under working memory load resulted in significantly greater reductions in attentional bias compared to the equivalent no-load condition. The current findings will require replication with clinical s les to determine the utility of the current task for achieving emotional benefits. These present findings are consistent with the position that the addition of a working memory load may facilitate change in attentional bias in response to an ABM training procedure.
Publisher: Springer Science and Business Media LLC
Date: 12-2019
DOI: 10.1186/S13063-019-3721-9
Abstract: In iduals diagnosed with autism spectrum disorder (ASD) experience impairing challenges in social communication and interaction across multiple contexts. While social skills group training (SSGT) has shown moderate effects on various sociability outcomes in ASD, there is a need for (1) replication of effects in additional clinical and cultural contexts, (2) designs that employ active control groups, (3) calculation of health economic benefits, (4) identification of the optimal training duration, and (5) measurement of in idual goals and quality of life outcomes. With the aim of investigating the efficacy and cost-effectiveness of a SSGT, KONTAKT©, a two-armed randomized control trial with adolescents aged 12–17 years ( N = 90) with ASD and an intelligence quotient (IQ) of over 70 will be undertaken. Following stratification for centre and gender, participants will be randomly assigned to either KONTAKT© or to an active control group, a group-based cooking programme. Participants will attend both programmes in groups of 6–8 adolescents, over 16 one-and-a-half-hour sessions. The primary outcome examined is adolescent self-rated achievement of personally meaningful social goals as assessed via the Goal Attainment Scaling during an interview with a blinded clinician. Secondary outcomes include adolescent self-reported interpersonal efficacy, quality of life, social anxiety, loneliness, face emotion recognition performance and associated gaze behaviour, and parent proxy reports of autistic traits, quality of life, social functioning, and emotion recognition and expression. Cost-effectiveness will be investigated in relation to direct and indirect societal and healthcare costs. The primary outcomes of this study will be evidenced in the anticipated achievement of adolescents’ personally meaningful social goals following participation in KONTAKT© as compared to the active control group. This design will enable rigorous evaluation of the efficacy of KONTAKT©, exercising control over the possibly confounding effect of exposure to a social context of peers with a diagnosis of ASD. Australian New Zealand Clinical Trials Registry (ANZCTR). ACTRN12617001117303. Registered on 31 July 2017. anzctr.org.au ClinicalTrials.gov, NCT03294668 . Registered on 22 September 2017. clinicaltrials.gov
Publisher: JMIR Publications Inc.
Date: 08-05-2018
Abstract: n iduals with heightened anxiety vulnerability tend to preferentially attend to emotionally negative information, with evidence suggesting that this attentional bias makes a causal contribution to anxiety vulnerability. Recent years have seen an increase in the use of attentional bias modification (ABM) procedures to modify patterns of attentional bias however, often this change in bias is not successfully achieved. his study presents a novel ABM procedure, Emotion-in-Motion, requiring in iduals to engage in patterns of attentional scanning and tracking within a gamified, complex, and dynamic environment. We aimed to examine the capacity of this novel procedure, as compared with the traditional probe-based ABM procedure, to produce a change in attentional bias and result in a change in anxiety vulnerability. e administered either an attend-positive or attend-negative version of our novel ABM task or the conventional probe-based ABM task to undergraduate students (N=110). Subsequently, participants underwent an anagram stressor task, with state anxiety assessed before and following this stressor. lthough the conventional ABM task failed to induce differential patterns of attentional bias or affect anxiety vulnerability, the Emotion-in-Motion training did induce a greater attentional bias to negative faces in the attend-negative training condition than in the attend-positive training condition (P=.003, Cohen d=0.87) and led to a greater increase in stressor-induced state anxiety faces in the attend-negative training condition than in the attend-positive training condition (P=.03, Cohen d=0.60). ur novel, gamified Emotion-in-Motion ABM task appears more effective in modifying patterns of attentional bias and anxiety vulnerability. Candidate mechanisms contributing to these findings are discussed, including the increased stimulus complexity, dynamic nature of the stimulus presentation, and enriched performance feedback.
Publisher: Elsevier BV
Date: 12-2012
DOI: 10.1016/J.PSYNEUEN.2012.04.018
Abstract: The mammalian neuropeptide oxytocin has well-characterized effects in facilitating prosocial and affiliative behavior. Additionally, oxytocin decreases physiological and behavioral responses to social stress. In the present study we investigated the effects of oxytocin on cognitive appraisals after a naturalistic social stress task in healthy male students. In a randomized, double-blind, placebo-controlled trial, 48 participants self-administered either an oxytocin or placebo nasal spray and, following a wait period, completed an impromptu speech task. Eye gaze to a pre-recorded video of an audience displayed during the task was simultaneously collected. After the speech, participants completed questionnaires assessing negative cognitive beliefs about speech performance. Whilst there was no overall effect of oxytocin compared to placebo on either eye gaze or questionnaire measures, there were significant positive correlations between trait levels of anxiety and negative self-appraisals following the speech. Exploratory analyses revealed that whilst higher trait anxiety was associated with increasingly poorer perceptions of speech performance in the placebo group, this relationship was not found in participants administered oxytocin. These results provide preliminary evidence to suggest that oxytocin may reduce negative cognitive self-appraisals in high trait anxious males. It adds to a growing body of evidence that oxytocin seems to attenuate negative cognitive responses to stress in anxious in iduals.
Publisher: Informa UK Limited
Date: 30-03-2022
DOI: 10.1080/02699931.2022.2057442
Abstract: Past research demonstrates that emotion recognition is influenced by social category cues present on faces. However, little research has investigated whether holistic processing is required to observe these influences of social category information on emotion perception, and no studies have investigated whether different visual s ling strategies (i.e. differences in the allocation of attention to different regions of the face) contribute to the interaction between social cues and emotional expressions. The current study aimed to address this. Participants categorised happy and angry expressions on own- and other-race faces, and male and female faces. In Experiments 1 and 2, holistic processing was disrupted by presenting inverted faces (Experiment 1) or part faces (Experiment 2). In Experiments 3 and 4 participants' eye-gaze to eye and mouth regions was also tracked. Disrupting holistic processing did not alter the moderating influence of sex and race cues on emotion recognition (Experiments 1, 2, 4). Gaze patterns differed as a function of emotional expression, and social category cues, however, eye-gaze patterns did not reflect response time patterns (Experiments 3 and 4). Results indicate that the interaction between social category cues and emotion does not require holistic processing and is not driven by differences in visual s ling.
Publisher: Elsevier BV
Date: 10-2019
Publisher: SAGE Publications
Date: 19-06-2019
Abstract: While altered gaze behaviour during facial emotion recognition has been observed in autistic in iduals, there remains marked inconsistency in findings, with the majority of previous research focused towards the processing of basic emotional expressions. There is a need to examine whether atypical gaze during facial emotion recognition extends to more complex emotional expressions, which are experienced as part of everyday social functioning. The eye gaze of 20 autistic and 20 IQ-matched neurotypical adults was examined during a facial emotion recognition task of complex, dynamic emotion displays. Autistic adults fixated longer on the mouth region when viewing complex emotions compared to neurotypical adults, indicating that altered prioritization of visual information may contribute to facial emotion recognition impairment. Results confirm the need for more ecologically valid stimuli for the elucidation of the mechanisms underlying facial emotion recognition difficulty in autistic in iduals.
Publisher: Springer Science and Business Media LLC
Date: 20-07-2017
DOI: 10.1007/S11920-017-0808-4
Abstract: A broad base of research has sought to identify the biases in selective attention which characterize social anxiety, with the emergent use of eye tracking-based methods. This article seeks to provide a review of eye tracking studies examining selective attention biases in social anxiety. Across a number of contexts, social anxiety may be associated with a mix of both vigilant and avoidant patterns of attention with respect to the processing of emotional social stimuli. Socially anxious in iduals may additionally avoid maintaining eye contact and may exhibit a generalized vigilance via hyperscanning of their environment. The findings highlight the utility of eye tracking methods for increasing understanding of the gaze-based biases which characterize social anxiety disorder, with promising avenues for future research.
Publisher: Elsevier BV
Date: 09-2017
DOI: 10.1016/J.NEUBIOREV.2017.06.016
Abstract: While behavioural difficulties in facial emotion recognition (FER) have been observed in in iduals with Autism Spectrum Disorder (ASD), behavioural studies alone are not suited to elucidate the specific nature of FER challenges in ASD. Eye tracking (ET) and electroencephalography (EEG) provide insights in to the attentional and neurological correlates of performance, and may therefore provide insight in to the mechanisms underpinning FER in ASD. Given that these processes develop over the course of the developmental trajectory, there is a need to synthesise findings in regard to the developmental stages to determine how the maturation of these systems may impact FER in ASD. We conducted a systematic review of fifty-four studies investigating ET or EEG meeting inclusion criteria. Findings indicate ergence of visual processing pathways in in iduals with ASD. Altered function of the social brain in ASD impacts the processing of facial emotion across the developmental trajectory, resulting in observable differences in ET and EEG outcomes.
Publisher: Springer Science and Business Media LLC
Date: 21-11-2020
Publisher: Springer International Publishing
Date: 08-12-2014
Publisher: Wiley
Date: 10-01-2019
DOI: 10.1002/AUR.2067
Abstract: Reduced social attention is a hallmark feature in autism spectrum disorder (ASD), emerging as early as the first year of life. This difference represents a possible mechanism impacting upon the development of more complex social-communicative behaviors. The aim of this study was to develop and test the efficacy of a novel attention bias modification paradigm to alter social attention, specifically orienting to faces. Children with ASD (n = 66), aged between 5 and 12 years, were randomized to play either a social attention training or control game for 15 min. Children playing the training game were reinforced for attending to and engaging with social characters, whereas children in the control group were equally rewarded for attending to both social and non-social characters. Eye-tracking measures were obtained before and after gameplay. There was a significant increase in the percentage of first fixations to faces, relative to objects, after social attention training compared to a control group, associated with a medium effect size (partial η = 0.15). The degree of social attention change in the training group was inversely associated with restricted and repetitive behaviors and moderated by comorbid attention deficit hyperactivity disorder diagnoses, suggestive of differential training effects based on in idual symptom profiles. By using the principles of attention bias modification, we demonstrated that social attention can be acutely modified in children with ASD, with an increased tendency to orient attention toward faces after brief social attention training. Modifying attentional biases may therefore represent a potential novel mechanism to alter the development of social communication trajectories. Autism Res 2019, 12: 527-535 © 2019 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Some children with autism spectrum disorder (ASD) do not look at faces or eyes as much as their non-ASD peers do. Using a game where players have to pay attention to characters with faces to score points, we found that children playing the game began to look more at faces, even outside of the game. Looking at faces is an important prerequisite to many social interactions, telling us about others' emotions and states of attention-things that become harder to understand when they are not seen. If children with ASD could use games to help train looking at faces in real life, then they may be in a better position to understand and participate in social exchanges.
Publisher: Elsevier BV
Date: 12-2012
DOI: 10.1016/J.JFLUDIS.2012.04.004
Abstract: Adults who stutter are at significant risk of developing social phobia. Cognitive theorists argue that a critical factor maintaining social anxiety is avoidance of social information. This avoidance may impair access to positive feedback from social encounters that could disconfirm fears and negative beliefs. Adults who stutter are known to engage in avoidance behaviours, and may neglect positive social information. This study investigated the gaze behaviour of adults who stutter whilst giving a speech. 16 adults who stutter and 16 matched controls delivered a 3-min speech to a television display of a pre-recorded lecture theatre audience. Participants were told the audience was watching them live from another room. Audience members were trained to display positive, negative and neutral expressions. Participant eye movement was recorded with an eye-tracker. There was a significant difference between the stuttering and control participants for fixation duration and fixation count towards an audience display. In particular, the stuttering participants, compared to controls, looked for shorter time at positive audience members than at negative and neutral audience members and the background. Adults who stutter may neglect positive social cues within social situations that could serve to disconfirm negative beliefs and fears. The reader will be able to: (a) describe the nature of anxiety experienced by adults who stutter (b) identify the most common anxiety condition among adults who stutter (c) understand how information processing biases and the use of safety behaviours contribute to the maintenance of social anxiety (d) describe how avoiding social information may contribute to the maintenance of social anxiety in people who stutter and (e) describe the clinical implications of avoidance of social information in people who stutter.
Publisher: Public Library of Science (PLoS)
Date: 16-10-2018
Publisher: Public Library of Science (PLoS)
Date: 11-02-2014
Publisher: Elsevier BV
Date: 08-2021
Publisher: Springer Science and Business Media LLC
Date: 03-10-2021
Publisher: Springer Science and Business Media LLC
Date: 15-06-2019
DOI: 10.1007/S10803-019-04104-Y
Abstract: Understanding the underlying visual scanning patterns of in iduals with autism spectrum disorder (ASD) during the processing of complex emotional scenes remains limited. This study compared the complex emotion recognition performance of adults with ASD (n = 23) and matched neurotypical participants (n = 25) using the Reading the Mind in Films Task. Behaviourally, both groups exhibited similar emotion recognition accuracy. Visual fixation time towards key social regions of each stimuli was examined via eye tracking. In iduals with ASD demonstrated significantly longer fixation time towards the non-social areas. No group differences were evident for the facial and body regions of all characters in the social scenes. The findings provide evidence of the heterogeneity associated with complex emotion processing in in iduals with ASD.
Location: Australia
No related grants have been discovered for Nigel Chen.