Hostile Attribution Bias Shapes Neural Synchrony in the Left Ventromedial Prefrontal Cortex during Ambiguous Social Narratives.

Hostile attribution bias refers to the tendency to interpret social situations as intentionally hostile. While previous research has focused on its developmental origins and behavioral consequences, the underlying neural mechanisms remain underexplored. Here, we employed functional near-infrared spectroscopy (fNIRS) to investigate the neural correlates of hostile attribution bias. While undergoing fNIRS, male and female participants listened to and provided attribution ratings for 21 hypothetical scenarios where a character's actions resulted in a negative outcome for the listener. Ratings of hostile intentions were averaged to measure hostile attribution bias. Using intersubject representational similarity analysis, we found that participants with similar levels of hostile attribution bias exhibited higher levels of neural synchrony during narrative listening, suggesting shared interpretations of the scenarios. This effect was localized to the left ventromedial prefrontal cortex (VMPFC) and was particularly prominent in scenarios where the character's intentions were highly ambiguous. We then grouped participants into high and low bias groups based on a median split of their hostile attribution bias scores. A similarity-based classifier trained on the neural data classified participants as having high or low bias with 75% accuracy, indicating that the neural time courses during narrative listening was systematically different between the two groups. Furthermore, hostile attribution bias correlated negatively with attributional complexity, a measure of one's tendency to consider multifaceted causes when explaining behavior. Our study sheds light on the neural mechanisms underlying hostile attribution bias and highlights the potential of using fNIRS to develop nonintrusive and cost-effective neural markers of this sociocognitive bias.

Perception of emotional facial expressions in aggression and psychopathy.

BACKGROUND: Altered affective state recognition is assumed to be a root cause of aggressive behavior, a hallmark of psychopathologies such as psychopathy and antisocial personality disorder. However, the two most influential models make markedly different predictions regarding the underlying mechanism. According to the integrated emotion system theory (IES), aggression reflects impaired processing of social distress cues such as fearful faces. In contrast, the hostile attribution bias (HAB) model explains aggression with a bias to interpret ambiguous expressions as angry. METHODS: In a set of four experiments, we measured processing of fearful and angry facial expressions (compared to neutral and other expressions) in a sample of 65 male imprisoned violent offenders rated using the Hare Psychopathy Checklist-Revised (PCL-R, Hare, R. D. (1991). The psychopathy checklist-revised. Toronto, ON: Multi-Health Systems) and in 60 age-matched control participants. RESULTS: There was no evidence for a fear deficit in violent offenders or for an association of psychopathy or aggression with impaired processing of fearful faces. Similarly, there was no evidence for a perceptual bias for angry faces linked to psychopathy or aggression. However, using highly ambiguous stimuli and requiring explicit labeling of emotions, violent offenders showed a categorization bias for anger and this anger bias correlated with self-reported trait aggression (but not with psychopathy). CONCLUSIONS: These results add to a growing literature casting doubt on the notion that fear processing is impaired in aggressive individuals and in psychopathy and provide support for the idea that aggression is related to a hostile attribution bias that emerges from later cognitive, post-perceptual processing stages.

The mediating role of hostile attribution bias in social exclusion affecting aggressive behavior.

Aggression is one of the public social issues affecting campus harmony and stability, and social exclusion is an important interpersonal contextual factor among many factors affecting aggression. However, studies examining the influence of social exclusion on aggression and its mediating mechanism are not systematic enough. Based on the general aggression model (GAM), we intend to explore the role of hostile attribution bias (HAB) in both trait and state levels of social exclusion, which leads to aggression through a combination of questionnaire and experimental methods. Study 1 surveyed 388 current high school students (Mage = 16.09, SD = 1.01) and found that HAB mediates the relationship between long-term social exclusion (trait level) and aggression tendency. Study 2 experimented with 181 high school students (Mage = 16.95, SD = 1.13) to examine whether short-term social exclusion (state level) after initiating the Cyberball paradigm could still influence aggressive behavior through the mediating role of HAB. Results found that the mediating role of HAB still holds. The findings of the study further enrich the GAM and have important implications for a more targeted approach to aggression prevention and intervention.

Longitudinal Associations Between Interpersonal Distrust and Social Aggression During College: Disentangling the Within-Person Process from Stable Between-Person Differences.

There is a dearth of information on the relationship between interpersonal distrust and social aggression in the youth, although both may lead to negative interpersonal relationships. Furthermore, scholars have not explored whether interpersonal distrust influences later social aggression over time at the within-person level. This study used five wave longitudinal data to investigate the longitudinal association between interpersonal distrust and social aggression and the role of hostile attribution bias in this relationship; notably, it used a relatively rigorous approach-the random intercept cross-lagged panel model-to disentangle within-person processes from stable between-person differences. The final number of participants included 1053 undergraduate students (677 female students and 376 male students), and 64.3% were female students, with a mean age of 18.45 years (SD = 0.95) at first measurement. Participants completed assessments for interpersonal distrust, hostile attribution bias, and social aggression at five time points across 6-month intervals. At the within-person level, the results revealed that interpersonal distrust was a predictor of later social aggression and that hostile attribution bias acted as a longitudinal mediator in this relationship. This result indicates that to enhance interpersonal harmony and reduce individual hostility and aggression toward others, intervention programs should aim to reduce interpersonal distrust.

Hostile attribution bias's role in perceived stress among college freshman students: A latent growth modelling approach.

This study's objective was to examine the growth trajectories of freshman students' perceived stress and whether hostile attribution bias predicts the pattern of perceived stress change using latent growth analyses. A longitudinal dataset with fourth measurement points was gathered from a total of 1109 college students enrolled at a university in Guizhou Province in the first 3 months after college freshmen enrollment. The freshman students' levels of perceived stress tend to show a piecewise linear decline during the transition period, which manifests as a faster decline in the first stage (within the first month) than in the second stage (after the first month). Moreover, hostile attribution bias not only positively predicted the initial level of perceived stress but also positively predicted the slope of perceived stress in the first and second stages. In addition, there was a significant sex difference in the initial level of perceived stress where the initial level of perceived stress was higher in females than in males, but there was no significant sex difference in the rate of perceived stress decline. These results highlight the longitudinal relationship between hostile attribution bias and perceived stress and have implications for improving freshmen' college adaptation.

Variants of Callous-unemotional traits in childhood: investigation of attachment profile and hostile attribution bias.

There is increasing evidence of interest in describing two variants of CallousUnemotional (CU) traits based on high (secondary variant) or low (primary variant) levels of anxiety. However, studies are limited in childhood. The present study aimed to further the understanding of the variants, specifically in association with hostile attribution bias (HAB) and attachment. In a community sample of children aged 4 to 9 (N = 70), the study examined whether anxiety moderated the association of CU traits with HAB, secure and disorganized attachment representations. Hierarchical regression analyses revealed that CU traits were positively associated with disorganized attachment, regardless of the anxiety level. In contrast, CU traits were not associated with secure attachment. A significant interaction revealed that CU traits were positively associated with HAB only at high levels of anxiety. Implications for understanding the variants of CU traits and hypotheses regarding their developmental trajectories are discussed.

Why narcissists are more likely to be aggressive? The role of hostile attribution bias.

Narcissism is commonly associated with aggressiveness, but the underlying mechanisms of this relationship are still not yet fully understood. Based on previous research showing that narcissists are suspicious, the present research investigated whether hostile attribution of intent could explain the relationship between narcissism and aggression. In Study 1, participants (N = 347) completed a self-report measure of grandiose narcissism (Narcissistic Personality Inventory) and a measure of hostile attribution bias (Social Information Processing-Attribution Emotion Questionnaire). Analyses revealed that narcissism was a strong predictor of hostile attribution bias, angry feelings, and aggressive reactions. Moreover, hostile attribution bias appeared to mediate the relation between narcissism and aggressive reactions. Study 2 (N = 130) replicated the findings of Study 1 using a measure of vulnerable narcissism (Hypersensitive narcissism scale). In addition, perspective taking was manipulated in Study 2 and the results showed that participants in the high perspective-taking condition (vs. low perspective taking) were less likely to make hostile attributions. These findings suggest that hostile attribution of intent is particularly relevant to understand narcissistic aggression. (170 words).

Hostile attribution bias in schizophrenia-spectrum disorders: narrative review of the literature and persisting questions.

BACKGROUND: Social cognition is often aberrant or impaired in psychotic disorders and related to functional outcomes. In particular, one core social cognitive bias - hostile attribution bias - is proposed to be implicated in paranoia, anxiety, mood disturbances and interpersonal conflict outcomes. However, questions remain about this domain's specificity to psychosis and its relationship to general functional outcomes. AIMS: The present paper offers a descriptive and critical review of the literature on hostile attribution bias in psychotic disorders, in order to examine (1) its impact on persecutory symptoms in schizophrenia-spectrum disorders, (2) impact on other related psychopathology among those experiencing psychosis and (3) relationship to functioning. METHODS: Twenty-eight studies included in this review after parallel literature searches of PsycINFO and PubMed. RESULTS: Evidence from these studies highlighted that hostile attribution bias is elevated in schizophrenia, and that it is related to anxiety, depression and interpersonal conflict outcomes. CONCLUSION: While results suggest that hostile attributions are elevated in schizophrenia and associated with symptoms and functioning, there exist numerous persisting questions in the study of this area, including identifying which measures are most effective and determining how it presents: as a state or trait-like characteristic, via dual processes, and its situational variation.

Effects of interpretation bias modification on hostile attribution bias and reactive cyber-aggression in Chinese adolescents: a randomized controlled trial.

Highly aggressive individuals tend to interpret others' motives and intentions as hostile in both offline and online social situations. The current study examined whether hostile interpretation bias can be modified to influence cyber-aggression in Chinese middle school students using an interpretation bias modification program. Gender differences and the heterogeneity of cyber-aggression were also investigated since previous studies suggest that they play important roles in determining the intervention effect. One hundred and twenty-one middle school students were randomized to receive either an eight-session interpretation bias modification task (CBM-I; n = 61) or an eight-session placebo control task (PCT; n = 60) over four weeks. Measures of hostile attribution bias and cyber-aggression were administered at baseline, post-training, and at one week follow-up. Results showed that compared to PCT, participants in CBM-I showed a significant reduction in reactive cyber-aggression. However, contrary to our expectation, there was no significant difference between the two groups in the reduction of hostile attribution bias after training. The moderated mediation analysis revealed that the effect of CBM-I on hostile attribution bias and the mediating role of hostile attribution bias in the relationship between CBM-I condition and reactive cyber-aggression was only observed among females, but not among males. These findings provide initial evidence for the potential of CBM-I in reducing hostile attribution bias and cyber-aggression. However, for male students, CBM-I might not be effective enough as expected. Supplementary Information: The online version contains supplementary material available at 10.1007/s12144-023-04433-3.

[The influencing factors of functional somatic discomfort in clinical nurses].

Objective: To investigate the functional somatic discomfort status, and to analyze the effect of job stress, hostile attribution bias and ego depletion on functional somatic discomfort in clinical nurses. Methods: In May 2019, 10 cities in Henan Province and Fujian Province were randomly selected as sampling cities. Using the stratified cluster sampling method, nurses of clinical nursing posts in 22 third class hospitals and 23 second class hospitals were selected as the research objects. The general information, job stress, hostile attribution bias, ego depletion and functional somatic discomfort of clinical nurses were investigated by self-designed general information questionnaire, Perceived Stress Scale, Social Information Processing-attribution Bias Questionnaire, Self-regulatory Fatigue Scale, Patient Health Questionnaire-15. 1200 clinical nurses included, and a total of 1159 valid questionnaires were collected, the effective rate of questionnaire collection was 96.6%. The t test was used to compare the difference of the functional somatic discomfort scores of clinical nurses with different demographic characteristicst. The influence of job stress, hostile attribution bias and ego depletion on functional somatic discomfort of clinical nurses were analyzed with Bootstrap. Results: The functional somatic discomfort score of clinical nurses was (8.95±4.38), of which 859 (74.12%) had functional somatic discomfort symptom. The functional somatic discomfort score of clinical nurses aged 36-50 years old was higher than that of 19-35 years old, the functional somatic discomfort score of clinical nurses with service age ≥5 years was higher than that of <5 years, the functional somatic discomfort score of non-permanent clinical nurses was higher than that of permanent clinical nurses, the functional somatic discomfort score of clinical nurses in tertiary hospitals was higher than that of secondary hospitals, the functional somatic discomfort score of clinical nurses in surgical departments were higher than those in non-surgical departments, and the differences were statistically significant (P<0.05). Job stress affected functional somatic discomfort through the single mediating role of hostile attribution bias, the single mediating role of ego depletion, and the chain mediating role of hostile attribution bias and ego depletion (ß=0.17, 95%CI: 0.10-0.20; ß=0.16, 95%CI: 0.10-0.20; ß=0.07, 95%CI: 0.03-0.10; P<0.05) . Conclusion: The functional somatic discomfort symptoms of clinical nurses are significant and varied among different age, working age, employment form, hospital grade and department groups. They are affected by work stress directly and through the separate mediating effect of hostile attribution bias and ego depletion, and the chain mediating effect of hostile attribution bias and ego depletion.

Hostility bias or sadness bias in excluded individuals: does anodal transcranial direct current stimulation of right VLPFC vs. left DLPFC have a mitigating effect?

Exclusion has multiple adverse effects on individual's well-being. It induces anger and hostile cognitions leading to aggressive behavior. The purpose of this study was to test whether exclusion would affect recognition of anger on ambivalent faces of the excluders. We hypothesized that exclusion would elicit more anger encoding (hostility bias) than inclusion, but this effect would be mitigated by anodal tDCS of right VLPFC or left DLPFC-regions engaged in negative affect regulation. Participants (N = 96) were recognizing emotions (anger, sadness, happiness) on ambiguous faces of individuals who-as they were told-liked them or not. Results showed that exclusion induced more sadness bias. tDCS to VLPFC decreased anger and increased sadness recognition on excluders' faces compared with includers' faces, expressing a mixture of these two emotions. Additionally, stimulation to VLPFC and DLPFC decreased latencies for faces expressing sadness (sad-angry and happy-sad) but increased for happy-angry faces. Stimulation to VLPFC also increased reaction time to excluders faces while stimulation of DLPFC decreased reaction latency to includers faces. Results were discussed with the reference to the form of exclusion, motivational mechanism affected by disliking but also to lateralization (valence vs. arousal theory) and cortical regions engaged in encoding sadness after a threat to belonging.

Stress reactivity and social cognition in pure and co-occurring early childhood relational bullying and victimization.

This study tested the independent effects and interactions of sympathetic nervous system reactivity and hostile attribution biases (HAB) in predicting change in pure and co-occurring relational bullying and victimization experiences over one year. Co-occurring and pure relational bullying and victimization experiences were measured using a dimensional bifactor model, aiming to address methodological limitations of categorical approaches, using data from 300 preschoolers (Mage = 44.70 months, SD = 4.38). Factor scores were then saved and used in nested path analyses with a subset of participants (n = 81) to test main study hypotheses regarding effects of HAB and skin conductance level reactivity (SCL-R). Bifactor models provided good fit to the data at two independent time points. HAB and SCL-R interacted to predict increases in co-occurring relational bullying/victimization with evidence for over- and underarousal pathways.

Social cognition and trust: Exploring the role of theory of mind and hostile attribution bias in children's skepticism of inaccurate informants.

A growing body of research has examined the role of individual differences in children's selective trust. The current study was designed to explore how individual differences in theory of mind and hostile attribution bias affect children's trust. Four- and five-year-old children took part in a standard selective trust paradigm in which they had the choice between a previously inaccurate informant and an unfamiliar informant. They were also asked to interpret why the previously inaccurate informant had provided incorrect information in the past. Finally, children completed a hostile attribution bias task and a theory of mind task. Children with better theory of mind ability were more likely to defer to the unfamiliar informant on the selective trust task. Children with greater hostile attribution bias were more likely to interpret previous inaccuracy as a result of "being tricky" rather than having "made a mistake." However, these interpretations did not influence children's choices on the selective trust task. Therefore, although there is reason to believe that establishing selective trust involves both cognitive and social processes, the current study raises questions about the nature of this relationship and how children draw on different sociocognitive skills when establishing epistemic trust.

Peer relations and different functions of cyber-aggression: A longitudinal study in Chinese adolescents.

Although previous studies have focused on the associations between peer group relations and cyber-aggression, limited attention has been paid to the heterogeneity in the functions of cyber-aggression. This study explored the unique associations of peer relations with proactive and reactive cyber-aggression and the possible mechanisms underlying them in a sample of adolescents using a longitudinal study design. A total of 829 middle school students completed the Cyber-rage and Cyber-reward Aggression Subscales of the Cyber-Aggression Typology Questionnaire, the Peer Relations Scale, the Social Information Processing-Attributional Bias Questionnaire, and the Self-efficacy for Aggression Scale twice at a 6-month interval. Multiple mediation analyses and bootstrapping were conducted using the Mplus 8 software. The results indicated that satisfying peer relations were negatively correlated with reactive cyber-aggression and positively associated with proactive cyber-aggression. Moreover, hostile intent attribution and self-efficacy for aggression mediated the associations between peer relations and both functions of cyber-aggression, however, in different ways. Unsatisfying peer relations were associated with higher levels of hostile intent attribution and lower levels of self-efficacy for aggression and predicted increases in reactive cyber-aggression. In contrast, satisfying peer relations were associated with lower levels of hostile intent attribution and higher levels of self-efficacy for aggression and predicted increases in proactive cyber-aggression. The findings indicated that different functions of cyber-aggression might be related to different mediation mechanisms, which sheds light on the prevention of cyber-aggression in the future.

Is the association between childhood maltreatment and aggressive behavior mediated by hostile attribution bias in women? A discordant twin and sibling study.

Understanding the mechanisms behind aggressive behavior (AGG) is vital so that effective prevention and intervention strategies can be developed. Maltreated children are hypothesized to be prone to social information processing biases, such as hostile attribution bias (HAB), which, in turn, may increase the likelihood of behaving aggressively. The first aim of the present study was to replicate findings regarding associations between childhood maltreatment (CM), HAB, and aggression in a population-based sample of Finnish female twins and their sisters (N = 2,167). However, these associations might not be causal but instead confounded by familial factors, shared between the variables. The second aim was, thus, to test the associations when potential confounding by familial (genetic or common environmental) effects were controlled for using a multilevel discordant twin and sibling design within (a) 379 pairs of twins (npairs = 239) or siblings (npairs = 140), and (b) within the 131 monozygotic (MZ) twin pairs. Consistent with previous studies, HAB mediated the association between CM and AGG when familial confounding was uncontrolled. No support was found for the mediation when controlling for familial confounding. Between-pair associations were found between CM and AGG, and between CM and HAB. In addition, within-pair associations were found between HAB and AGG, and between CM and AGG, however, these were nonsignificant in the discordant MZ analysis, offering the most stringent control of familial confounding. The results indicate the necessity of taking familial confounding into account when investigating the development of AGG.

Longitudinal relationships among interpersonal openness trait, hostile attribution bias, and displaced aggressive behaviour: Big Five treated as covariates.

Displaced aggressive behaviour is associated with many negative outcomes. Although certain personality traits predict displaced aggressive behaviour, the uniquely longitudinal effect of indigenous interpersonal traits on displaced aggressive behaviour is ignored. To address this gap, we explored the longitudinal relationship among an indigenously interpersonal trait of China (interpersonal openness), hostile attribution bias, and self-reported displaced aggressive behaviour. Additionally, we tested whether hostile attribution bias mediated the relationship between interpersonal openness and self-reported displaced aggressive behaviour. The Interpersonal Self-Support Scale for Undergraduate Students, Word Sentence Association Paradigm for Hostility, Displaced Aggression Questionnaire, and the NEO Personality Inventory-3 were administered to 942 undergraduates on two occasions, 6 months apart. A cross-lagged model showed that, after controlling for the Big Five personality traits, interpersonal openness predicted subsequent hostile attribution bias, and hostile attribution bias predicted self-reported displaced aggressive behaviour 6 months later. Hostile attribution bias at time 2 mediated the relationship between interpersonal openness at time 1 and self-reported displaced aggressive behaviour at time 2. These results were consistent with the interpersonal self-support theory's appraisals of interpersonal openness, and they extended the social information processing and general aggression models to explain displaced aggressive behaviour.

Modification of hostile attribution bias reduces self-reported reactive aggressive behavior in adolescents.

Aggressive individuals more readily interpret others' motives and intentions in ambiguous situations as hostile. This hostile attribution bias has been argued to be causally involved in the development and maintenance of aggression, making it a target for interventions. In our current study, adolescents selected for high levels of aggression (N = 39) were assigned to either a test-retest control group or a five-session hostile attribution bias modification training, in which they were trained to make more benign interpretations of ambiguously provocative social situations. Before and after the training, we assessed hostile attribution bias and both reactive and proactive self-reported aggression in both groups. The training not only tended to produce the expected reduction in hostile attribution bias but also crucially led to decreased levels of reactive but not proactive aggression compared with the control group. Our results thus support the idea that hostile attribution bias can be targeted using training techniques and that such training-induced changes in bias may reduce aggression. However, future studies using an active control group and multiple outcome measures are needed to address the long-term effects of training.

It's not just what you say, it's how you say it too. Adolescents' hostile attribution of intent and emotional responses to social comments.

A highly prevalent and relevant situation in which adolescents have to interpret the intentions of others is when they interact with peers. We therefore successfully introduced a new paradigm to measure hostile attribution bias (HAB) and emotional responses to such social interactions and examined how it related to youth's aggressiveness. We presented 881 adolescents (Mage = 14.35 years; SD = 1.23; 48.1% male) with audio fragments of age-mates expressing social comments that varied in content (e.g., what the person says) and tone of voice (e.g., how the person says it). Participants' peers also reported on their aggressiveness. In general, added negativity of content and tone was driving the youth's intent attribution and emotional responses to the comments. In line with the Social Information Processing model, we found more hostile attribution of intent and more negative emotional responses of aggressive youth to ambiguous stimuli. Aggression was also related to more hostile intent attributions when both content and tone were negative. Unlike most studies on HAB, the aggression effects in the current study emerged for girls, but not boys. Implications of these results and future use of the experimental paradigm are discussed.

Effect of workplace ostracism on emotional exhaustion and unethical behaviour among Chinese nurses: A time-lagged three-wave survey.

AIM: This study examined the following: (a) the impact of nurses' workplace ostracism on unethical behaviour; (b) mediating role of emotional exhaustion between nurses' workplace ostracism and unethical behaviour; and (c) moderating effect of hostile attribution bias. BACKGROUND: While unethical behaviour is a workplace phenomenon that can negatively influence the sustainable development of settings, few nurse studies have explored it. This study identified an interpersonal antecedent of unethical behaviour: workplace ostracism. DESIGN: A time-lagged three-wave survey was conducted over 3 months (November 2016-January 2017) to collect data. METHODS: Nurses (N = 530) from three hospitals in China completed three anonymous self-reported questionnaires. Descriptive statistics, linear regression, and moderated mediation tests were performed, and data analysed using SPSS 23.0 and Mplus7.4. RESULTS: Workplace ostracism positively influenced nurses' unethical behaviour and emotional exhaustion mediated the relationship between workplace ostracism and unethical behaviour. Nurses' hostile attribution bias moderated the effect of workplace ostracism on emotional exhaustion and unethical behaviour. CONCLUSION: Workplace ostracism was an important interpersonal factor predicting unethical behaviour. Nurse supervisors should establish a harmonious interpersonal environment and be aware of hostile attribution bias to prevent nurses' unethical behaviour. IMPACT: Workplace ostracism is a pervasive phenomenon in the nursing workplace that contributes to unethical behaviour. Nurse supervisors and staff should together establish harmonious working environments without workplace ostracism. Nurse supervisors should pay attention to nurses' emotions and conduct psychological counselling to minimize the negative effects of workplace ostracism. This study contributed to understanding how and why nurses engaged in unethical behaviour.

Interpretation of ambiguous facial affect in adults with attention-deficit/hyperactivity disorder.

In addition to impairments in cognitive functioning, attention-deficit/hyperactivity disorder (ADHD) is associated with deficits in interpersonal functioning as well which are assumed to stem from a distorted perception or interpretation of affective information. While previous research suggests that the decoding of negatively valenced facial stimuli is impaired, less is known about the potential interpretation biases in ADHD which are linked to other externalizing psychopathologies. The present study investigated interpretation biases in adults with ADHD (N = 65) and controls (N = 49) using ambiguous facial stimuli (angry/happy, angry/fearful, fearful/happy blends) with different proportions of each emotion. Participants indicated the dominant emotion and rated the perceived intensity of each image. While impaired processing of fearful expressions was evident in the ADHD group, the results of the current study do not provide support for an interpretation bias in adults with ADHD. These findings suggest that interpretation biases may be restricted to aggressive psychopathology and cannot be generalized to individuals with ADHD.