RESUMO
BACKGROUND: Threat and individual differences in threat-processing bias perception of stimuli in the environment. Yet, their effect on perception of one's own (body-based) self-motion in space is unknown. Here, we tested the effects of threat on self-motion perception using a multisensory motion simulator with concurrent threatening or neutral auditory stimuli. RESULTS: Strikingly, threat had opposite effects on vestibular and visual self-motion perception, leading to overestimation of vestibular, but underestimation of visual self-motions. Trait anxiety tended to be associated with an enhanced effect of threat on estimates of self-motion for both modalities. CONCLUSIONS: Enhanced vestibular perception under threat might stem from shared neural substrates with emotional processing, whereas diminished visual self-motion perception may indicate that a threatening stimulus diverts attention away from optic flow integration. Thus, threat induces modality-specific biases in everyday experiences of self-motion.
Assuntos
Percepção de Movimento , Humanos , Percepção de Movimento/fisiologia , Masculino , Feminino , Adulto , Adulto Jovem , Percepção Visual/fisiologia , Medo , Ansiedade/psicologia , Estimulação AcústicaRESUMO
BACKGROUND: Unfamiliarity with academic research may contribute to higher levels of anticipatory state anxiety about affective neuroimaging tasks. Children with high trait anxiety display differences in brain response to fearful facial affect compared to non-anxious youth, but little is known about the influence of state anxiety on this association. Because reduced engagement in scientific research and greater mistrust among minoritized groups may lead to systematic differences in pre-scan state anxiety, it is crucial to understand the neural correlates of state anxiety during emotion processing so as to disambiguate sources of individual differences. METHODS: The present study probed the interactive effects of pre-scan state anxiety, trait anxiety, and emotional valence (fearful vs. happy faces) on neural activation during implicit emotion processing in a community sample of 46 preadolescent Latina girls (8-13 years). RESULTS: Among girls with mean and high levels of trait anxiety, pre-scan state anxiety was associated with greater right amygdala-hippocampal and left inferior parietal lobe response to fearful faces relative to happy faces. CONCLUSIONS: Anticipatory state anxiety in the scanning context may cause children with moderate and high trait anxiety to be hypervigilant to threats, further compounding the effects of trait anxiety. Neuroimaging researchers should control for state anxiety so that systematic differences in brain activation resulting from MRI apprehension are not misleadingly attributed to demographic or environmental characteristics.
Assuntos
Ansiedade , Mapeamento Encefálico , Feminino , Adolescente , Criança , Humanos , Emoções/fisiologia , Tonsila do Cerebelo/diagnóstico por imagem , Hipocampo , Imageamento por Ressonância Magnética , Expressão FacialRESUMO
Trait anxiety and attentional control are important factors related to depression symptoms. The study investigated how trait anxiety and attentional control predicted the trajectories of depression symptoms during the transition into early adolescence. The mediating effect of attentional control on the relationship of trait anxiety to the trajectories of depression symptoms was also examined. Children of 9 to 10 years were recruited at Time 1. Trait anxiety, attentional control, and depression symptoms were assessed at Time 1. Depression symptoms were measured at three follow-up assessments across 18 months. Latent class growth modeling revealed high (14.4%) and low (85.6%) trajectories of depression symptoms. Higher trait anxiety and lower attentional control predicted a higher likelihood of showing the trajectory of high depressive symptoms. Attentional control mediated the relationship of trait anxiety to the trajectory membership of depression symptoms. The findings had important implications for the association of trait anxiety with the trajectory membership of depression symptoms and highlighted the importance of attentional control in the development of depression symptoms for children with high trait anxiety.
RESUMO
This 19-year prospective study applied a social development lens to the challenge of identifying long-term predictors of adult negative affectivity. A diverse community sample of 169 individuals was repeatedly assessed from age 13 to age 32 using self-, parent-, and peer-reports. As hypothesized, lack of competence establishing and maintaining close friendships in adolescence had a substantial long-term predictive relation to negative affectivity at ages 27-32, even after accounting for prior depressive, anxious, and externalizing symptoms. Predictions also remained robust after accounting for concurrent levels of depressive symptoms, indicating that findings were not simply an artifact of previously established links between relationship quality and depressive symptoms. Predictions also emerged from poor peer relationships within young adulthood to future relative increases in negative affectivity by ages 27-32. Implications for early identification of risk as well as for potential preventive interventions are discussed.
RESUMO
Past research showed that high trait anxiety and low self-compassion, along with lack of perceived social support, have been associated with experiencing stronger grief symptoms. However, research is yet to understand if and how these factors interact among grieving individuals. Results of a cross-sectional study (N = 539) showed that perceived social support interacted differently with trait anxiety and self-compassion to shape grief experiences. Unexpectedly, perceived social support did not buffer the association between higher trait anxiety and stronger grief symptoms. Instead, participants with higher trait anxiety reported stronger symptoms only when they perceived to have less social support. In contrast, participants with higher self-compassion reported less symptoms when they perceived to have more social support. These findings show that social support can emphasize the detrimental role of anxiety and the protective role of self-compassion when people are coping with a loss. Implications and suggestions for future research are discussed.
RESUMO
OBJECTIVE: To assess the impact of student pharmacist state anxiety on vasopressor calculation accuracy in advanced cardiac life support (ACLS) simulations. METHODS: Third-year professional students participated in 2 ACLS-related simulation laboratory sessions. In week 1, students completed 3 calculations at their workstation with no stressors. Students were then randomized into teams for a bedside simulation where they independently completed 3 additional calculations either with or without stressors. Team assignments were maintained for week 2 where all participants completed a high-fidelity ACLS simulation that included a team vasopressor calculation. At both encounters, calculation accuracy was assessed as well as pre- and post-state anxiety using the Spielberger State-Trait Anxiety Inventory (STAI) survey tool. RESULTS: Students' (N = 145) trait anxiety aligned with normative data for similarly aged professional students. Post-simulation state anxiety in week 1 was found to be higher for those completing the activity with stressors than without (STAI score 44.7 vs 36.9) paired with lower bedside calculation accuracy, despite similar initial workstation calculation accuracy. In week 2, pre-simulation state anxiety score and calculation accuracy were not significantly different between the 2 groups. However, the state anxiety score significantly increased post-simulation for those exposed to stress in the previous week. CONCLUSION: Stress negatively impacted student pharmacist vasopressor calculation accuracy. However, the repeated exposure to a stressed simulation did not result in a significant difference in pre- or post-simulation state anxiety score or calculation accuracy when compared to a non-stressed control. Consideration should be made whether to include more "real-life" simulations in student pharmacist education.
Assuntos
Suporte Vital Cardíaco Avançado , Educação em Farmácia , Humanos , Idoso , Suporte Vital Cardíaco Avançado/educação , Farmacêuticos , Avaliação Educacional , Competência Clínica , Ansiedade , EstudantesRESUMO
Developmental prosopagnosia (DP) is a condition that indicates the inability to recognize individuals by their faces from birth, without any history of brain damage. The assessment of face recognition ability and diagnosis of DP involve the use of face tests such as the Cambridge Face Memory Test (CFMT) and the Cambridge Face Perception Test, along with self-reported measures like the 20-Item Prosopagnosia Index (PI20). Face recognition accuracy is affected by anxiety. However, previous studies on the relationship between face recognition ability and anxiety have not used the PI20 measure. This study aimed to investigate the relationship between self-reported measures of face recognition ability and anxiety tendencies among healthy young individuals for DP diagnosis and its implications. We used a face recognition test, involving the PI20, CFMT, Visual Perception Test for Agnosia-Famous Face Test (VPTA-FFT), and State-Trait Anxiety Inventory (STAI). We assessed the performance of 116 Japanese young adults (75 females, median age of 20.7 years, with a standard deviation of 1.2). Subsequently, we conducted a statistical analysis to examine the relationship between the outcomes of the face recognition tests and STAI scores using Pearson correlation analysis and single correlation coefficients. The results showed a positive correlation between state anxiety and PI20 (r = 0.308, p = 0.007), and a weak positive correlation was also observed between trait anxiety and PI20 (r = 0.268, p = 0.04). In contrast, there was no correlation between CFMT and VPTA-FFT with respect to STAI. The results of the hierarchical multiple regression analysis also suggested that the correlation between the performance on the PI20 (self-report) and objective measures of face recognition performance (the CFMT and the VPTA-FFT) are driven by differences in anxiety. This study is the first to explore the relationship between face recognition abilities and anxiety using the PI20 self-report measure. There are implications for future research on the diagnosis of DP and the relationship between anxiety and face recognition.
Assuntos
Reconhecimento Facial , Prosopagnosia , Feminino , Adulto Jovem , Humanos , Adulto , Prosopagnosia/diagnóstico , Reconhecimento Psicológico , Ansiedade/diagnóstico , Autorrelato , Reconhecimento Visual de ModelosRESUMO
While our direct observations of the features or behaviours of the stimuli around us tell us much about them (e.g., should they be feared?), the origin of much of our knowledge is often untethered from directly observable properties (e.g., through what we have learned or have been told about them, or "semantic knowledge"). Here, we ask whether otherwise neutral visual stimuli that participants learn to associate with emotional qualities in the lab cause the stimuli to be attended in a similar way as stimuli whose emotional qualities can be discerned through their visual properties. In Experiment 1, participants learned to associate negative or neutral characteristics with neutral faces, which then served as valid or invalid spatial cues to targets in an attentional disengagement paradigm. The performance of participants higher in trait anxiety was consistent with attentional avoidance of faces with learned negative associations, while participants lower in trait anxiety showed a general response slowing in trials with these stimuli, compared to those with neutral associations. In contrast, in Experiment 2, using (visually) expressive (angry) faces, the performance of participants higher in trait anxiety was consistent with difficulty disengaging from visually threatening faces, while the performance of those with lower trait anxiety appeared unaffected by the valence of the stimuli. These findings suggest that (1) emotionality acquired indirectly via learned semantic knowledge impacts how attention is allocated to face stimuli, and this impact is influenced by trait anxiety, and (2) there are differences in the effects of stimulus emotionality depending on whether it is acquired indirectly or directly via the perceptual features of the stimulus. These differences are discussed in the context of the variability of attention bias effects reported in the literature and the time course of impacts of emotionality on stimulus processing.
RESUMO
Introduction: Although some findings indicate that yoga can reduce stress and anxiety, many studies present mixed results. The potential of yoga interventions to alleviate anxiety, including the mechanisms and boundary conditions by which it does so, is an under-researched topic. Anxiety is often divided into "state anxiety" and "trait anxiety," the former being a temporary reaction to stressful events, while the latter is a more stable personality feature that responds to adverse situations or perceived threats. Materials and methods: This study investigates whether a yin yoga intervention delivered online reduces state anxiety immediately after each yoga session and whether the anxiety levels are significantly lower at the end of the 10-week yoga intervention than at the beginning of the study. We also predicted no effect of yin yoga intervention on trait anxiety. The study was conducted during the COVID-19 pandemic when participants (N = 48 Latvian women) experienced heightened anxiety levels. Results: This study shows that a ten-week online yin yoga intervention significantly reduced state anxiety in the intervention group compared with the control group. State anxiety levels also significantly decreased after each yin yoga session, providing more support for the anxiety-reducing effect of yin yoga. In contrast, yoga participation did not cause differences in trait anxiety between the control and intervention groups, even though trait anxiety decreased in the intervention group and increased in the control group over the study period. Conclusion: The positive effects of yin yoga on state anxiety indicate the potential of yin yoga intervention as a first-line treatment to control and reduce state anxiety, with possible additional effects on trait anxiety.
RESUMO
Objective: Mind wandering is a common phenomenon among athletes during training and competition, and can lead to poor performance. We attempt to clarify which personality type is more prone to mind wandering and the role of trait anxiety between them. Methods: Six hundred and eighty-one athletes participated in this cross sectional study. Participants completed the Athlete Mind Wandering Scale, The Chinese adjectives scale of Big-Five factor personality short scale version and Pre-Competition Emotion Scale-Trait questionnaires. The survey data was tested for common method biases, Pearson correlation analysis, and structural equation model by SPSS 25.0 and Mplus 7.0. Results: Common method biases can be accepted in this study. (1) Athletes' neuroticism was significantly and positively correlated with trait anxiety and mind wandering, respectively, athletes' extraversion, agreeableness, conscientiousness, and openness were significantly and negatively correlated with trait anxiety and mind wandering respectively; the athletes' trait anxiety was significantly and positively correlated with mind wandering; (2) By constructing mediating models, the direct effects of athletes' extraversion, agreeableness, conscientiousness, neuroticism, and openness on mind wandering were insignificant. The mediating effect of athletes' trait anxiety between the five personalities and mind wandering was significant. Conclusion: Trait anxiety in athletes plays a fully mediating role between the relationship of personality and mind wandering. Athletes' extraversion, agreeableness, conscientiousness, neuroticism, and openness can all have an impact on mind wandering through the mediating role of trait anxiety. Athletes can use the mediating role of trait anxiety to intervene the frequency of mind wandering.
RESUMO
RATIONALE: Arginine vasopressin (AVP) has dose- and sex-specific effects on social behavior, and variation in social responses is related to variation in the V1a receptor gene in animals. Whether such complexity also characterizes AVP effects on anxiety in humans, or whether V1a genotype is related to anxiety and/or AVP's ability to affect it, remains to be determined. OBJECTIVE: To test if AVP has dose-dependent effects on anxiety in men and/or women and if a particular allele within the RS3 promoter region of the V1a receptor gene is associated with anxiety and/or AVP effects on anxiety. METHOD: Men and women self-administered 20 IU or 40 IU intranasal arginine vasopressin (AVP) and placebo in a double-blind, within-subjects design, and State (SA) and Trait (TA) anxiety were measured 60 min later. PCR was used to identify allelic variation within the RS3 region of the V1a receptor gene. RESULTS: AVP decreased SA in men across both doses, whereas only the lower dose had the same effect, across sexes, in individuals who carry at least one copy of a previously identified "risk" allele in the RS3 promoter of the V1a receptor gene. Additionally, after placebo, women who carried a copy of the allele displayed lower TA than women who did not, and AVP acutely increased TA scores in those women. CONCLUSIONS: Exogenous AVP has modest sex- and dose-dependent effects on anxiety/affect in humans. Further, allelic variation in the V1a promoter appears associated with responsiveness to AVP's effects and, at least in women, to stable levels of anxiety/affect.
Assuntos
Ansiedade , Arginina Vasopressina , Relação Dose-Resposta a Droga , Genótipo , Receptores de Vasopressinas , Humanos , Masculino , Receptores de Vasopressinas/genética , Feminino , Arginina Vasopressina/genética , Arginina Vasopressina/farmacologia , Arginina Vasopressina/administração & dosagem , Método Duplo-Cego , Ansiedade/genética , Ansiedade/tratamento farmacológico , Adulto , Adulto Jovem , Fatores Sexuais , Regiões Promotoras Genéticas , Administração Intranasal , AlelosRESUMO
BACKGROUND: Numerous studies have explored the neural correlates of trait anxiety, a predisposing factor for several stress-related disorders. However, the findings from previous studies are inconsistent, which might be due to the limited regions of interest (ROI). A recent approach, named global-brain functional connectivity (GBC), has been demonstrated to address the shortcomings of ROI-based analysis. Furthermore, research on the transcriptome-connectome association has provided an approach to link the microlevel transcriptome profile with the macroscale brain network. In this paper, we aim to explore the neurobiology of trait anxiety with an imaging transcriptomic approach using GBC, biological neurotransmitters, and transcriptome profiles. METHODS: Using a sample of resting-state fMRI data, we investigated trait anxiety-related alteration in GBC. We further used behavioral analysis, spatial correlation analysis, and postmortem gene expression to separately assess the cognitive functions, neurotransmitters, and transcriptional profiles related to alteration in GBC in individuals with trait anxiety. RESULTS: GBC values in the ventromedial prefrontal cortex and the precuneus were negatively correlated with levels of trait anxiety. This alteration was correlated with behavioral terms including social cognition, emotion, and memory. A strong association was revealed between trait anxiety-related alteration in GBC and neurotransmitters, including dopaminergic, serotonergic, GABAergic, and glutamatergic systems in the ventromedial prefrontal cortex and the precuneus. The transcriptional profiles explained the functional connectivity, with correlated genes enriched in transmembrane signaling. LIMITATIONS: Several limitations should be taken into account in this research. For example, future research should consider using some different approaches based on dynamic or task-based functional connectivity analysis, include more neurotransmitter receptors, additional gene expression data from different samples or more genes related to other stress-related disorders. Meanwhile, it is of great significance to include a larger sample size of individuals with a diagnosis of major depression disorder or other disorders for analysis and comparison and apply stricter multiple-comparison correction and threshold settings in future research. CONCLUSIONS: Our research employed multimodal data to investigate GBC in the context of trait anxiety and to establish its associations with neurotransmitters and transcriptome profiles. This approach may improve understanding of the neural mechanism, together with the biological and molecular genetic foundations of GBC in trait anxiety.
Assuntos
Conectoma , Transtorno Depressivo Maior , Humanos , Transcriptoma , Encéfalo/diagnóstico por imagem , Ansiedade/diagnóstico por imagem , Ansiedade/genética , Mapeamento Encefálico/métodos , Imageamento por Ressonância Magnética/métodos , Conectoma/métodosRESUMO
Anxiety can have adverse effects on cognition such as impairing test performance or restricting working memory. One way of reducing anxiety is through humor, and the present research investigated if the perception of laughter, which is often seen as a reaction to humor, could impact self-reported anxiety. Participants completed the STAI battery containing subscales for both state and trait anxiety before and after one of three manipulations: a laughter sounds rating task, a neutral sounds rating task, or a working memory span task. Results showed that perceiving laughter decreased both state and trait anxiety, taking a working memory test increased state anxiety, and perceiving neutral sounds had no effect on either type of anxiety. These findings are interpreted as evidence that the positive emotions induced by hearing laughter help to regulate anxiety by undoing arousal, even when negative emotions are not present.
RESUMO
Objective: Stathmin 1 (Stmn1) is a neuronal growth-associated protein which was found to be involved in fear processing both in animals and humans. Moreover, it has been demonstrated that 2 single nucleotide polymorphisms (SNPs) of the Stmn1 gene (rs182455 and rs213641) significantly impacted individual fear and anxiety responses in German. However, there have been no reports on the correlation between Stmn1 SNPs and anxiety in Chinese. The present study thus aimed to explore such correlation. Methods: A sample of 567 healthy Han Chinese adults were genotyped for the Stmn1 SNP, namely rs182455, using polymerase chain reaction and restriction fragment length polymorphism analysis. Anxiety was assessed by the Chinese version of 40-item State-Trait Anxiety Inventory (STAI), which measures 2 anxiety dimensions, state and trait anxiety. Results: The numbers of CC, CT, and TT genotypes of rs182455 polymorphism were 227 (40.0%), 263 (46.4%), and 77 (13.6%), respectively. The genotype distribution did not deviate from the Hardy-Weinberg equilibrium (χ 2 = 0.004, P = .953). There were no significant differences in either state or trait anxiety among the 3 rs182455 genotype groups (F = 0.457, 0.415, P = .634, .660), between the 2 dominant model groups (t = 0.865, -0.195, P = .388, .845), or between the 2 recessive model groups (t = 0.106, 0.906, P = .916, .365). Moreover, no significant gender-specific differences in any STAI scores were found among the rs182455 genotype groups (all P > .05). Conclusion: No evidence was demonstrated for the association of the Stmn1 gene polymorphism rs182455 with either trait or state anxiety in Chinese adults.
RESUMO
Background and Purpose: Nursing education lacks an easily accessible, valid, and reliable short instrument to support researchers and instructors in quickly assessing student anxiety. The purpose of this research was to respond to this need by assessing the reliability and validity of a short-form anxiety instrument adapted from psychology which could measure state and trait anxiety. Methods: Using a one-group, repeated measures design, 51 sophomore level undergraduate nursing students had their state and trait anxiety levels measured at three time points over the course of a semester. Results: Results showed that the anxiety instrument was valid and reliable for use in nursing education with coefficient α ranging from .65 to .88. Conclusion: Future nurse researchers and educators should consider using the short-form anxiety instrument when a quick differentiation is needed to measure state and trait anxiety.
Assuntos
Ansiedade , Bacharelado em Enfermagem , Psicometria , Estudantes de Enfermagem , Humanos , Feminino , Masculino , Estudantes de Enfermagem/psicologia , Estudantes de Enfermagem/estatística & dados numéricos , Reprodutibilidade dos Testes , Ansiedade/psicologia , Psicometria/normas , Adulto Jovem , Adulto , Inquéritos e Questionários/normasRESUMO
Abnormal emotional responses in high-trait-anxious (HTA) individuals may be related to the use of emotion regulation strategies. Directed attention is a substrategy of attention deployment, which has been proven to be effective in regulating individual negative emotions. The present study investigated whether HTA women can effectively utilize directed attention to decrease negative emotions. Two studies were conducted using the same directed attention paradigm, with one focusing on event-related potentials (ERPs) and the other utilizing eye-tracking techniques. Participants viewed negative and neutral pictures and rated their negative emotions experienced during viewing. During directed attention, attention was directed towards highly arousing aspects, less arousing aspects of negative pictures, or less arousing aspects of neutral pictures. In study 1, late positive potentials (LPP) were recorded in 26 HTA and 24 low-trait-anxious (LTA) women. In study 2, the latency of first fixation, the proportion of gaze duration and fixations in the specific area were recorded in 27 HTA and 23 LTA women. Both the HTA and LTA groups revealed a decrease in negative emotional ratings and LPP amplitudes when their attention was directed towards the less arousing aspects of negative pictures. Furthermore, in this condition, the HTA group had a shorter latency of first fixation on highly arousing aspects and a higher proportion of gaze duration on less arousing aspects of negative pictures compared to the LTA group. These results indicate that when confronted with negative pictures, HTA women are able to regulate their emotional responses through directed attention, which may be accompanied by attentional vigilance and avoidance tendencies.
Assuntos
Atenção , Eletroencefalografia , Potenciais Evocados , Tecnologia de Rastreamento Ocular , Humanos , Feminino , Atenção/fisiologia , Adulto Jovem , Potenciais Evocados/fisiologia , Adulto , Ansiedade/fisiopatologia , Emoções/fisiologia , Estimulação Luminosa/métodos , Regulação Emocional/fisiologia , Movimentos Oculares/fisiologia , AdolescenteRESUMO
While many people experience potentially threatening events during their life, only a minority develops posttraumatic stress disorder (PTSD). The identification of individuals at risk among those exposed to trauma is crucial for PTSD prevention in the future. Since re-experiencing trauma elements outside of the original trauma-context is a core feature of PTSD, we investigate if the ability to bind memories to their original encoding context (i.e. memory contextualization) predicts PTSD vulnerability. We hypothesize that pre-trauma neutral memory contextualization (under stress) negatively relates to PTSD-like behavior, in a prospective design using the cut-off behavioral criteria rat model for PTSD. 72 male Sprague Dawley rats were divided in two experimental groups to assess the predictive value of 1) memory contextualization without acute stress (NS-group) and 2) memory contextualization during the recovery phase of the acute stress-response (S-group) for susceptibility to PTSD-like behavior. A powerful extension to regression analysis -path analysis-was used to test this specific hypothesis, together with secondary research questions. Following traumatic predator scent stress, 19.4% of the rats displayed PTSD-like behavior. Results showed a negative relation between pre-trauma memory contextualization and PTSD-like behavior, but only in the NS-group. Pre-trauma memory contextualization was positively related to fear association in the trauma environment, again only in the NS group. If the predictive value of pre-trauma contextualization of neutral information under non-stressful conditions for PTSD susceptibility is replicated in prospective studies in humans, this factor would supplement already known vulnerability factors for PTSD and improve the identification of individuals at risk among the trauma exposed, especially those at high trauma risk such as soldiers deployed on a mission.
Assuntos
Transtornos de Estresse Pós-Traumáticos , Humanos , Ratos , Masculino , Animais , Transtornos de Estresse Pós-Traumáticos/complicações , Estudos Prospectivos , Ratos Sprague-Dawley , Medo , Estresse Psicológico/complicaçõesRESUMO
Converging evidence from behavioral and neuroscience studies demonstrated that our attention to the external world is influenced by emotion, especially anxiety. However, little is known about how trait anxiety influences neural and behavioral responses during mind wandering. The present study aimed to examine the neural and cognitive time courses of how trait anxiety affects mind wandering. Event-related potentials (ERPs) were recorded from 20 individuals with high trait anxiety and 20 with low trait anxiety when they performed the Sustained Attention to Response Task (SART) in which they were asked to respond to frequent ''nontargets'' (digits 0-6, 8-9) but withhold responses to infrequent ''targets'' (the digit 7). We compared the behavioral performance and electroencephalographic waves between the high and low trait anxiety groups during states of "mind wandering" (fail to withhold a response to the target number) and being "on-task" (correctly withhold a response to the target number). Results showed that a larger late positive component (LPC, 400-950 ms) was elicited when participants were "on task" than when they were mind wandering. Additionally, a larger late slow waveform (LSW, 950-1050 ms) was elicited in the high trait anxiety group than in the low trait anxiety group. Moreover, there was a positive correlation between self-reported trait anxiety scores and the LSW amplitudes during mind wandering. It was proposed that the effect of trait anxiety on the cognitive neural mechanism underlying attentional processing was primarily reflected in a later process involving the redistribution of cognitive resources.
Assuntos
Eletroencefalografia , Potenciais Evocados , Humanos , Transtornos de Ansiedade , Cognição/fisiologia , AnsiedadeRESUMO
The study investigated how active and avoidant coping styles predicted the trajectory membership of anxiety symptoms during the transition into early adolescence. A total of 321 Chinese children aged 9 to 10 years were recruited from a primary school in mainland China. Self-reported trait anxiety, coping styles and anxiety symptoms were assessed at baseline. After 6 months, self-reported anxiety symptoms were measured at three follow-up assessments with an interval of 6 months. Latent class growth modelling revealed high (18.7%) and low (81.3%) trajectories of anxiety symptoms in children during the transition into early adolescence. After controlling for trait anxiety, depression and sex, high active coping style predicted the trajectory of high anxiety symptoms, which was not moderated by trait anxiety. Before controlling for these covariates, the relation between active coping style and anxiety symptoms was in the opposite direction. A high avoidant coping style showed a trend to predict the trajectory of high anxiety symptoms only for children with low trait anxiety. These findings add a developmental context to the relationships of active and avoidant coping styles to anxiety symptoms and suggest that trait anxiety may moderate these relationships.
Assuntos
Adaptação Psicológica , Ansiedade , Humanos , Criança , Masculino , Feminino , Ansiedade/psicologia , Adolescente , China , Depressão/psicologia , Desenvolvimento do Adolescente/fisiologia , Desenvolvimento Infantil/fisiologiaRESUMO
Trait anxiety is a well-established risk factor for anxiety and depressive disorders, yet its neural correlates are not clearly understood. In this study, we investigated the neural correlates of trait anxiety in a large sample (n = 179) of individuals who completed the trait and state versions of the State-Trait Anxiety Inventory and underwent resting-state functional magnetic resonance imaging. We used independent component analysis to characterize individual resting-state networks (RSNs), and multiple regression analyses to assess the relationship between trait anxiety and intrinsic connectivity. Trait anxiety was significantly associated with intrinsic connectivity in different regions of three RSNs (dorsal attention network, default mode network, and auditory network) when controlling for state anxiety. These RSNs primarily support attentional processes. Notably, when state anxiety was not controlled for, a different pattern of results emerged, highlighting the importance of considering this factor in assessing the neural correlates of trait anxiety. Our findings suggest that trait anxiety is uniquely associated with resting-state brain connectivity in networks mainly supporting attentional processes. Moreover, controlling for state anxiety is crucial when assessing the neural correlates of trait anxiety. These insights may help refine current neurobiological models of anxiety and identify potential targets for neurobiologically-based interventions.