Evolutionary theorizing has given rise to the idea that responding to any particular threat may be more mandatory than responding to any particular reward. The present three experiments (total N = 375) sought to provide support for this perspective in an emotion dynamics task in which participants continuously rated their affective state in response to appetitive (reward-related) versus aversive (threat-related) images. Even when equating images for arousal and extremity, several negativity effects (e.g., steeper reactivity slopes in response to aversive images) were found. These negativity effects can serve as an experimental model of threat sensitivity, which should predispose some individuals, more than others, to symptoms related to fear and anxiety. This point was made with respect to sex differences, given that women (relative to men) are diagnosed with anxiety disorders at higher rates. Sex differences were pronounced and extensions of this work, both basic and applied, are proposed.

BACKGROUND: The Sensitivity to Threat and Affiliative Reward (STAR) model proposes low threat sensitivity and low affiliation as risk factors for callous-unemotional (CU) traits. Preliminary evidence for the STAR model comes from work in early childhood. However, studies are needed that explore the STAR dimensions in late childhood and adolescence when severe conduct problems (CP) emerge. Moreover, it is unclear how variability across the full spectrum of threat sensitivity and affiliation gives rise to different forms of psychopathology beyond CU traits.
METHODS: The current study addressed these gaps using parent- and child-reported data from three waves and a sub-study of the Adolescent Brain Cognitive Development Study® of 11,878 youth (48% female; ages 9-12).
RESULTS: Consistent with the STAR model, low threat sensitivity and low affiliation were independently related to CU traits across informants and time. Moreover, there was significant interaction between the STAR dimensions, such that children with lower sensitivity to threat and lower affiliation had higher parent-reported CU traits. Unlike CU traits, children with higher threat sensitivity had higher parent-reported CP and anxiety. Finally, children with lower affiliation had higher parent-reported CP, anxiety, and depression. Results largely replicated across informants and time, and sensitivity analysis revealed similar findings in children with and without DSM-5 defined CP.
CONCLUSIONS: Results support the STAR model hypotheses as they pertain to CU traits and delineate threat sensitivity and affiliation as independent transdiagnostic risk factors for different types of psychopathology. Future research is needed to develop fuller and more reliable and valid measures of affiliation and threat sensitivity across multiple assessment modalities.

The Roman high-avoidance (RHA) and low-avoidance (RLA) rat lines/strains were established in Rome through bidirectional selection of Wistar rats for rapid (RHA) or extremely poor (RLA) acquisition of a two-way active avoidance task. Relative to RHAs, RLA rats exhibit enhanced threat sensitivity, anxiety, fear and vulnerability to stress, a passive coping style and increased sensitivity to frustration. Thus, RLA rats\' phenotypic profile falls well within the \"internalizing\" behavior spectrum. Compared with RLAs and other rat strains/stocks, RHAs present increased impulsivity and reward sensitivity, deficits in social behavior and attentional/cognitive processes, novelty-induced hyper-locomotion and vulnerability to psychostimulant sensitization and drug addiction. Thus, RHA rats\' phenotypes are consistent with a \"disinhibiting externalizing\" profile. Many neurobiological/molecular traits differentiate both rat lines/strains. For example, relative to RLA rats, RHAs exhibit decreased function of the prefrontal cortex (PFC), hippocampus and amygdala, increased functional tone of the mesolimbic dopamine system, a deficit of central metabotropic glutamate-2 (mGlu2) receptors, increased density of serotonin 5-HT2A receptors in the PFC, impairment of GABAergic transmission in the PFC, alterations of several synaptic markers and increased density of pyramidal immature dendrític spines in the PFC. These characteristics suggest an immature brain of RHA rats and are reminiscent of schizophrenia features like hypofrontality and disruption of the excitation/inhibition cortical balance. We review evidence supporting RLA rats as a valid model of anxiety/fear, stress and frustration vulnerability, whereas RHA rats represent a promising translational model of neurodevelopmental alterations related to impulsivity, schizophrenia-relevant features and comorbidity with drug addiction vulnerability.

Bullying victimization is a risk factor for suicidal ideation, suicide behaviors, and death by suicide in youth. However, not all victims of bullying report suicidal thoughts and behaviors, suggesting that there may be certain subgroups who are at high risk for suicide. Neuroimaging studies suggest that individual differences in neurobiological threat reactivity may contribute to increased vulnerability to suicide, particularly in the context of repeated exposure to bullying. The purpose of the present study was to examine the unique and interactive effects of past-year bullying victimization and neural reactivity to threat on suicide risk in youth. Ninety-one youth (ages 16-19) completed self-report measures of past-year bullying victimization and current suicide risk. Participants also completed a task designed to probe neural reactivity to threat. Specifically, participants passively viewed negative or neutral images during functional magnetic resonance imaging. Bilateral anterior insula (AIC) and amygdala (AMYG) reactivity to threat/negative images (>neutral images) was used to capture threat sensitivity. Greater bullying victimization was associated with increased suicide risk. There was also a bullying by AIC reactivity interaction such that among individuals with high AIC reactivity, greater bullying was associated with increased suicide risk. Among individuals with low AIC reactivity, there was no association between bullying and suicide risk. Results suggest that youth with increased AIC reactivity to threat may be particularly vulnerable to suicide in the context of bullying. These individuals may represent a high-risk group for subsequent suicide behavior and AIC function may be a promising objective prevention target.

The present study sought to better understand the characteristics of those who own firearms in the Black community; and to understand how Black firearm owners differ from nonfirearm owning Black individuals on a variety of variables related to safety, threat concerns, and suicide risk.
Two samples were utilized in this study. The first was a subsample of those who identified as Black from a nationally representative sample (N = 502) seeking to understand firearm ownership within the United States. The second used a subsample of those who identified as Black (N = 1086) from a representative sample from New Jersey, Minnesota, and Mississippi. Variables related to safety and threat concerns were included in the second sample.
In both samples, multiple demographic variables, such as being a woman and having higher education, predicted firearm ownership. In the second sample, experiences of everyday discrimination and crime experiences were associated with firearm ownership. Additionally, Black firearm owners reported significantly more suicidal ideation than Black nonfirearm owners.
The findings demonstrate the unique characteristics and experiences of Black firearm owners and show that firearm ownership is associated with increased suicide risk factors for Black adults. Findings should be used to advocate for the creation of more culturally relevant suicide prevention and firearm means safety strategies.

Research finds that the perception that immigrants are culturally and economically threatening is associated with negative attitudes toward immigration. In a largely separate body of work, psychophysiological predispositions toward threat sensitivity are connected to a range of political attitudes, including immigration. This article draws together these two literatures, using a lab experiment to explore psychophysiological threat sensitivity and immigration attitudes in the United States. Respondents with higher threat sensitivity, as measured by skin conductance responses to threatening images, tend to be less supportive of immigration. This finding builds on our understanding of the sources of anti-immigrant attitudes.

Peer victimization is a developmentally salient stressor that elevates adolescents\' risk for anxiety disorders. However, modifiable mechanisms that explain this link and can be targeted via therapeutic interventions remain poorly understood. Drawing from psychobiological models implicating aberrant threat sensitivity in the development and maintenance of psychopathology, the current study investigated sensitivity to peer-related social threats as a mechanism underlying the association between peer victimization and anxiety. A sample of 197 dyads of early adolescents (M age = 12.02; 46% female) and parents/guardians (M age = 41.46; 90% female) completed online surveys assessing peer victimization, sensitivity to potential (i.e., ambiguous) social threats, and anxiety. Controlling for potentially confounding demographic and psychosocial factors, both self- and parent-reported peer victimization were positively associated with adolescent anxiety symptoms. Additionally, there were significant indirect effects from self- and parent-reported peer victimization to anxiety via social threat sensitivity. Supplemental analyses indicated unique effects of covert, but not overt, peer victimization on social threat sensitivity and anxiety. The findings provide initial evidence that peer victimization experiences lower adolescents\' threshold for interpreting threats in ambiguous social situations, which contributes to heightened anxiety. These results implicate social threat sensitivity as a potential therapeutic target for interrupting links from peer victimization to psychological distress.

Exaggerated reactivity to threats that are uncertain (U-threat) is a risk factor for problem alcohol use. Data suggest that exaggerated reactivity to U-threat is associated with chronic anxiety and motivation for coping-oriented drinking. Not all individuals with high U-threat reactivity engage in excessive drinking and theory and research suggest that individual differences in emotion regulation, particularly frequency and effectiveness of cognitive reappraisal, are potential moderators of this well-established link. The aim of the current study was to test this hypothesis using a multimodal laboratory design. A total of 83 volunteers with depression and/or anxiety completed a well-validated threat sensitivity task and two complimentary assessments of cognitive reappraisal. Threat sensitivity was measured using startle eyeblink potentiation during threat-of-electric shock. Cognitive reappraisal was measured using self-report and estimates of prefrontal cortex activation (PFC; i.e., ventrolateral, dorsolateral and dorsomedial) during instructed reappraisal during functional magnetic resonance imaging. Results revealed self-reported and PFC indices of reappraisal were correlated within-subjects. Additionally, self-reported and ventrolateral (vlPFC) activation during reappraisal moderated the association between reactivity to U-threat and problem alcohol use. Across both measures, at low engagement in reappraisal, greater startle reactivity to U-threat was associated with greater problem alcohol use. At high engagement in reappraisal, there was no association between U-threat reactivity and problem alcohol use. Together, the findings reveal that exaggerated reactivity to U-threat may be a particularly robust risk factor for problem alcohol use in the context of impaired or ineffective emotion regulation.

Aggression is highly prevalent in borderline personality disorder (BPD). Previous studies have identified specific biobehavioral mechanisms underlying aggression in BPD, threat sensitivity being among them. We composited the mechanism-based anti-aggression psychotherapy (MAAP) in order to target these specific mechanisms, and MAAP was found to be superior to non-specific supportive psychotherapy (NSSP) in reducing aggressive behavior. In the present study, we investigated whether underlying brain mechanisms expected to be involved were affected by MAAP. To this end, n = 33 patients with BPD and overt aggressive behavior (n = 20 in MAAP, n = 13 in NSSP) and n = 25 healthy participants took part in a functional magnetic resonance imaging emotional face-matching task before and after treatment, or at a similar time interval for controls. Overt aggressive behavior was assessed using the overt aggression scale, modified. Results showed a decrease in amygdala activation in response to facial stimuli after MAAP, whereas an increase in amygdala activation was found after NSSP. Furthermore, in the MAAP group, connectivity between amygdala and dorsomedial prefrontal cortex increased from pre- to post-treatment compared to the NSSP group. Hence, the results suggest an impact of MAAP on brain mechanisms underlying the salience circuit in response to threat cues.

The Dual-Disposition Model proposes to understand psychopathy through two dispositions (i.e., threat sensitivity and poor inhibitory control) with distinct etiological substrates. In the current study, we examined the predictive contributions of threat sensitivity, poor inhibitory control, and their interaction to emotion dysregulation in 694 Chinese undergraduates based on the Disinhibition subscale of Triarchic Psychopathy Measure, Behavioral Inhibition System Scale, and Difficulties in Emotion Regulation Scale. Our results suggested that two dispositions have independent contributions to emotion dysregulation. Additionally, interactive effects of two dispositions were found for emotion awareness, impulse control, emotional acceptance, and limited emotion regulation strategies when upset. These provide evidence that deficits associated with poor inhibitory control can be selectively suppressed by low threat sensitivity or exacerbated by high threat sensitivity. Training individuals with high psychopathic dispositions to focus on their emotional state might be able to enhance their ability of emotion regulation.