Differences In Emotional Reactivity Research Articles

Do pictures' emotional valence and arousal affect younger and older adults' narratives?

Emotional content, specifically negative valence, can differentially influence speech production in younger and older adults' autobiographical narratives, which have been interpreted as reflecting age differences in emotion regulation. However, age differences in emotional reactivity are another possible explanation, as younger and older adults frequently differ in their affective responses to negative and positive pictures. The present experiment investigated whether a picture's valence (pleasantness) and arousal (intensity) influenced older adults' production of narratives about those pictures. Thirty younger and 30 older participants produced narratives about pictures that varied in valence (positive, negative, and neutral) and arousal (high, low). Narratives were recorded via Zoom, transcribed, and analyzed with Linguistic Inquiry and Word Count-22 to get measures of emotional word use, disfluencies, and linguistic distance. Results showed that negative valence increased age differences in speech production independent of picture arousal: Relative to younger adults, older adults used more positive words, fewer negative words, and had more silent pauses when telling narratives about negative pictures. In contrast, high arousal decreased age differences such that older adults used fewer positive words in narratives about positive pictures and more linguistically distant words evidenced by fewer present-tense verbs, relative to narratives about low-arousal pictures. Contrary to an explanation of enhanced regulation or control over emotions in older adulthood, these findings support the idea that older adults' speech production is influenced by their reactivity or affective response to emotional stimuli even when the task is not to communicate one's emotions. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Age-related emotional advantages in encountering novel situation in daily life.

People encounter novel situations throughout their lives that contribute to the acquisition of knowledge and experience. However, novelty can be misaligned with goals and motivation in later adulthood according to socioemotional selectivity theory. This study investigated age differences in emotional reactions associated with novel experiences. Multilevel structural equation models were used to analyze experience-sampling data obtained from an adult sample of 375 participants aged 18-94 years who reported their current situation and momentary emotional experience five times per day for 7 days. On occasions where situations were rated as more novel, people reported reduced positive and increased negative emotion. Those who had more overall exposure to novel situations tended to have more negative emotional experiences in general. Contrary to our hypothesis, there were age differences in individuals' negative emotional reactivity to situations that are perceived as more novel, such that novel situations were reported as less negative among older adults. By applying theoretical understanding of age differences in motivation and well-being in adulthood, our findings illuminate aspects of situations that elicit negative emotions. Findings highlight age-related benefits in emotional well-being, consistent with socioemotional selectivity theory postulates, and further implies that older adults may not be novelty averse. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

The Agential Causes of Business Management Students in the Implementation of the Full Virtual Teaching

Objective: This study investigates the agential causes influencing undergraduate business management students in their handling of change. The objectives are: (1) To investigate emotional reactions experienced by students since the launch of full virtual teaching as a result of the COVID-19 outbreak. (2) To investigate the students’ concerns in their lived experiences. (3) To identify commonalities and differences in students’ experiences during the implementation of full virtual teaching induced by COVID-19 in the socio-cultural contexts of China, the UK, and Ukraine. Methods: This research employed an embedded multiple-case design, following the logic of literal and theoretical replication. One-to-one interviews were conducted, involving a total of 61 business management students. All scripts were analyzed using framework analysis and summative content analysis. Results: The study found that all sampled students have experienced a wide range of emotions as emerged from their reflexive accounts of their lived experiences associated with full virtual teaching as a result of the COVID-19 pandemic. A discernible trajectory of emotional changes was observed. The students’ primary concerns evolved as situations progressed, with the desire to return to campus being pronounced at the beginning of the change and intensifying over time. Additionally, the study identified differences in emotional reactions and considerations of personal development between Chinese students and their counterparts from other socio-cultural backgrounds. Conclusion: Emotions, reflexivity, absence, and absenting are influential factors shaping student experiences.

The influence of emotional reactions and compliance with Ministry of Health guidelines during the COVID-19 pandemic in Israel: a longitudinal study of gender differences.

This study sought to examine gender differences in emotional reactions and compliance with Ministry of Health (MOH) guidelines during the COVID-19 pandemic in Israel, with the goal of gaining a deeper understanding of these gender-related variations throughout the lockdown periods. A longitudinal study comprising 2509 participants was conducted during two of Israel's lockdowns: 1424 participants completed a questionnaire during the first lockdown (23 April-5 May 2020); of these, 1085 completed a follow-up questionnaire during the second lockdown (September 30-October 10, 2020). Participants exhibited higher levels of compliance with MOH guidelines (e.g., wearing face masks, maintaining social distancing) and knowledge about COVID-19 during the second lockdown, whereas they exhibited more negative emotional reactions during the first lockdown. Female participants scored higher than male participants on all measures. Multiple regression results showed that about 21% of the variance in compliance with MOH guidelines was explained by lockdown type (i.e., first or second), gender, and age, while knowledge and negative emotional reactions added another 19% to the explained variance. The results suggest that the impact of the pandemic on emotional reactions decreased over time, with people exhibiting greater compliance with MOH guidelines and more knowledge about COVID-19. Moreover, the behavioral and psychological impact of the pandemic was greater on women than on men. The results suggest that healthcare professionals should pay more attention to mental health issues during a pandemic. Moreover, policymakers should focus on women as a vulnerable group and suggest appropriate solutions to reduce their emotional distress. Furthermore, governments and employers should provide greater flexibility and support for single mothers during the pandemic. In addition, gender inequality during lockdowns may place women at greater risk of psychological distress.

Age differences in emotional reactions to ageist memes and changes in age of one's Best Self

Memes on social media can carry ageist messages and can elicit reactions that are both emotional and self-evaluative. The present study investigates age-related differences in nine discrete emotions and in the evaluation of when individuals have been or will be their best selves. Participants (n = 360) representing young (m = 26 years), middle-aged (m = 39 years) and older adults (m = 63 years) were randomly assigned to view either non-ageist (animals) or ageist (e.g., incompetent older people) memes. After viewing memes, we assessed nine emotional reactions (i.e., fear, anger, sadness, happiness, anxiety, discomfort, disgust, surprise, enjoyment) and Best Self evaluations. Younger and middle-aged people reported more intense emotional reactions to memes than older people, with the exception that older people reported more discomfort and disgust in response to ageist versus non-ageist memes. Younger adults were less surprised by ageist memes (vs. non-ageist) and for all age groups ageist memes (vs. non-ageist) elicited less happiness and enjoyment and were less likely to be shared. With respect to evaluations of one's Best Self, older individuals were more likely to report being their best selves in the past, while after viewing ageist memes, younger individuals were more likely to report being their best selves in the future. Emotions of disgust and discomfort were related to identifying one's Best Self as further in the past. The current study adds to the literature on the impact of ageism by examining age-related differences in the emotions and self-evaluations experienced when confronted with memes on social media.

Individual differences in emotional reactions to bistable perception.

To assess whether there are individual differences in emotional reactions to bistable images, and if so, to identify some of the psychological factors that predict them. Bistable images - which have two competing perceptual interpretations - have long been used in the scientific study of consciousness. Here we applied a different lens and investigated emotional reactions to them. Method Participants were adult humans in a cross-sectional study. Participants were presented with three bistable images and rated their emotional reactions to experiencing bistability. They also completed measures of intolerance of uncertainty, cognitive empathy, affective empathy, and negative affect. Results There were marked individual differences in these reactions, ranging from feeling highly negative to highly positive. These individual differences in emotional response to bistability were linked to a number of psychological processes: intolerance of uncertainty, cognitive empathy, and negative affect, but not affective empathy. Conclusions These finding have important implications because: (a) these emotional reactions could distort scientific investigations that use these stimuli to study non-emotional perceptual and cognitive processes; and (b) they highlight that this approach offers a useful window into how individuals react to these stimuli that demonstrate that there is not always a single viable interpretation of the world around us.

College students’ emotional responses to social distancing protocols during the COVID-19 pandemic: A qualitative diary study

ABSTRACT This qualitative diary study explored emotional responses of college students to social distancing (SD) protocols during the COVID-19 pandemic. Twenty college students in an undergraduate senior capstone psychology course at a medium-sized public university in the Eastern USA wrote reflective diaries for several weeks. Their reactions to ongoing SD protocols were analyzed across four cohorts, from the virus onset in spring 2020 through late 2021. Entries related to SD protocols were selected, then coded with etic and emic coding strategies to characterize the aspects of SD and associated emotions. Participants discussed ten aspects of SD in passages that were complex in emotion, most strongly fear, joy, and sadness, and to a lesser extent, anger, disgust, and surprise. Gender differences in emotional reactions were minimal. Results are discussed in relation to student well-being, the socio-emotional toll of SD protocols, and ways to ease negative SD impacts.

Body odor disgust sensitivity (BODS) is related to extreme odor valence perception.

Odors are important disease cues, and disgust sensitivity to body odors reflects individual differences in disease avoidance. The body odor disgust sensitivity (BODS) scale provides a rapid and valid assessment of individual differences. Nevertheless, little is known about how individual differences in BODS might correlate with overall odor perception or how it is related to other differences in emotional reactivity (e.g., affect intensity). We investigated how BODS relates to perceptual ratings of pleasant and unpleasant odors. We aggregated data from 4 experiments (total N = 190) that were conducted in our laboratory, and where valence and intensity ratings were collected. Unpleasant odors were body-like (e.g., sweat-like valeric acid), which may provide disease cues. The pleasant odors were, in contrast, often found in soap and cleaning products (e.g., lilac, lemon). Across experiments, we show that individuals with higher BODS levels perceived smells as more highly valenced overall: unpleasant smells were rated as more unpleasant, and pleasant smells were rated as more pleasant. These results suggest that body odor disgust sensitivity is associated with a broader pattern of affect intensity which causes stronger emotional responses to both negative and positive odors. In contrast, BODS levels were not associated with odor intensity perception. Furthermore, disgust sensitivity to odors coming from external sources (e.g., someone else's sweat) was the best predictor of odor valence ratings. The effects were modest in size. The results validate the BODS scale as it is explicitly associated with experimental ratings of odor valence.

Age, Gender and One's Perception of Discrimination Against Men Versus Women in Korea.

The present research investigated whether and (if so) how one's perception of gender discrimination would vary as a function of age and gender in Korea. Since gender-related conflicts have escalated in Korea especially among younger adults, we predicted that (1) there would be gender differences in one's perception of gender discrimination in Korea and (2) such differences would be particularly large among younger adults. Consistent with the predictions, we found that Korean men underestimated discrimination against women and overestimated discrimination against men, relative to Korean women. Also, such tendency was more pronounced among younger men than among older men without significant differences in sexism between them. Moreover, young men claimed that men were at least as discriminated against as women in Korea unlike other groups who believed that discrimination against women was larger than discrimination against men. Our data also suggest that such perception of gender discrimination among younger Korean men is possibly due to their beliefs that social atmosphere in Korea is disadvantageous to their gender. We further showed that gender differences in perception of gender discrimination were associated with corresponding differences in emotional reactions (i.e., anger) to gender discrimination.

Effects of social rank and pubertal delay on brain structure in female rhesus macaques

Adverse social experience during childhood and adolescence leads to developmental alterations in emotional and stress regulation and underlying neurocircuits. We examined the consequences of social subordination (low social rank) in juvenile female rhesus monkeys, as an ethologically valid model of chronic social stressor exposure, on brain structural and behavioral development through the pubertal transition. Adolescence is a developmental period of extensive brain remodeling and increased emotional and stress reactivity. Puberty-induced increases in gonadal hormones, particularly estradiol (E2), are likely involved due to its organizational effects on the brain and behavior. Thus, we also examined how experimentally delaying pubertal onset with Lupron (gonadotropin releasing hormone -GnRH- agonist used clinically to delay early puberty) interacted with social rank (dominant vs. subordinate) to affect brain and behavioral outcomes. Using a longitudinal experimental design, structural MRI (sMRI) scans were collected on socially housed juvenile female rhesus monkeys living in indoor-outdoor enclosures prior to the onset of puberty (18–25 months), defined as menarche or the initial occurrence of perineal swelling and coloration, and again at 29–36 months, when all control animals had reached puberty but none of the Lupron-treated had. We examined the effects of both social rank and pubertal delay on overall structural brain volume (i.e. intracranial, grey matter (GM) and white matter (WM) volumes), as well as on cortico-limbic regions involved in emotion and stress regulation: amygdala (AMYG), hippocampus (HC), and prefrontal cortex (PFC). Measures of stress physiology, social behavior, and emotional reactivity were collected to examine functional correlates of the brain structural effects. Apart from expected developmental effects, subordinates had bigger AMYG volumes than dominant animals, most notably in the right hemisphere, but pubertal delay with Lupron-treatment abolished those differences, suggesting a role of gonadal hormones potentiating the brain structural impact of social stress. Subordinates also had elevated baseline cortisol, indicating activation of stress systems. In general, Lupron-treated subjects had smaller AMYG and HC volume than controls, but larger total PFC (driven by bigger GM volumes), and different, region-specific, developmental patterns dependent on age and social rank. These findings highlight a region-specific effect of E2 on structural development during female adolescence, independent of those due to chronological age. Pubertal delay and AMYG volume, in turn, predicted differences in emotional reactivity and social behavior. These findings suggest that exposure to developmental increases in E2 modifies the consequences of adverse social experience on the volume of cortico-limbic regions involved in emotional and stress regulation during maturation. But, even more importantly, they indicate different brain structural effects of chronological age and pubertal developmental stage in females, which are very difficult to disentangle in human studies. These findings have additional relevance for young girls who experience prolonged pubertal delays or for those whose puberty is clinically arrested by pharmacological administration of Lupron.

Children’s Emotional Reactivity to Emotionally Evocative Stimuli: Associations With Internalizing Symptoms

Abstract: Individual differences in emotional reactivity emerge early in development and predict important child outcomes. Unfortunately, methods used to assess these often fail to tap dynamic changes in emotion, obscuring nuanced relationships between maladaptive emotional reactivity and early internalizing psychopathology. We therefore explored the utility of an emerging, multimethod approach for examining children’s emotional reactivity. Thirty-nine children (22 girls; M age = 7.19 years, SD = .76) viewed 11 video clips eliciting happiness, sadness, or fear. We used multilevel growth curve modeling to estimate change in children’s self-reported and observed emotion across clips of increasing potency. Higher anxious/depressive symptoms predicted steeper trajectories of child-rated happiness and lower happiness and fear toward low-intensity clips. Higher depressive symptoms predicted lower child-rated sadness toward a low-intensity clip. The limited associations between children’s symptoms and emotion ratings averaged across clips suggested that modeling child emotion across stimuli of varying intensity yields a valuable index of emotional reactivity.

Individual differences in pupil dilation to others’ emotional and neutral eyes with varying pupil sizes

ABSTRACT Sensitivity to others’ emotional signals is an important factor for social interaction. While many studies of emotional reactivity focus on facial emotional expressions, signals such as pupil dilation which can indicate arousal, may also affect observers. For example, observers’ pupils dilate when viewing someone with dilated pupils, so-called pupillary contagion. Yet it is unclear how pupil size and emotional expression interact as signals. Further, examining individual differences in emotional reactivity to others can shed light on its mechanisms and potential outcomes. In the current study, adults’ (N = 453) pupil size was assessed while they viewed images of the eye region of individuals varying in emotional expression (neutral, happy, sad, fearful, angry) and pupil size (large, medium, small). Participants showed pupillary contagion regardless of the emotional expression. Individual differences in demographics (gender, age, socioeconomic status) and psychosocial factors (anxiety, depression, sleep problems) were also examined, yet the only factor related to pupillary contagion was socioeconomic status, with higher socioeconomic status predicting less pupillary contagion for emotionally-neutral stimuli. The results suggest that while pupillary contagion is a robust phenomenon, it can vary meaningfully across individuals.

P306. Mechanisms of Vulnerability and Resilience to Chronic Stress

Chronic psychosocial stress is a major etiological risk factor for major depressive disorder (MDD). We examined how individual differences in emotional reactivity and sensitivity to stress are associated with chronic stress response and development of depression.

Emotional reactivity to daily stressors: Does stressor pile-up within a day matter for young-old and very old adults?

Over the past decade, many studies have reported individual differences in negative emotional reactions to daily stressful events. However, whether and how individual and age-related differences in emotional reactivity also depend on the temporal characteristics of stressors has received little attention. In this project, we focused on the temporal characteristics of stressor occurrence and examined the pile-up of stressors within a day-referring to multiple stressors encountered within a relatively narrow time window. To do so, we used data from 123 young-old (66-69 years, 47% women) and 47 very old adults (84-90 years, 60% women). Participants reported their momentary feelings and exposure to stressors six times a day over 7 consecutive days in their everyday life. Emotional reactivity to stressor pile-up over the day followed an exponential decay trajectory, with higher stressor burden in close proximity to the stressor occurrence. The exact shape of the decay trajectory differed among participants. Most importantly, both stressor pile-up and ongoing stress predicted greater emotional reactivity. We also found interaction effects of stressor pile-up and current stressor occurrence in that increases in negative affect under ongoing stress were stronger when stressors had piled-up before. No evidence was found for increased vulnerability to stressor pile-up in very old adults; rather, the impact of preceding stressors attenuated faster for individuals in this age group. The findings highlight the utility of comprehensively studying how stressor characteristics such as their pile-up within short time periods shape emotional reactivity. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Emotional Reactivity and Emotion Regulation Among Young Adults During COVID-19 Lockdown: The Moderating Role of Gender and Engagement in Sports.

The effects of the COVID-19 pandemic on mental health have not been fully inspected among the young adults’ population. The objectives of the present study were: (1) to examine differences in emotional reactivity and emotion regulation between, both gender and sports engagement level during the first 2 weeks of the lockdown; and (2) to examine the possible impact of emotion regulation on emotional reactivity, and possible significant roles of gender and sports engagement level as moderators. This cross-sectional study included 315 Serbian young adults (aged 18–26 years old) during COVID-19 lockdown. Respondents answered socio-demographic questions and the Serbian version of the Multidimensional Emotion Questionnaire (MEQ). The results of confirmatory factor analysis indicated good fit for both positive and negative reactivity scales (SRMR = 0.037; CFI = 0.984, RMSEA = 0.046, and SRMR = 0.055; CFI = 0.964, RMSEA = 0.064, respectively). Gender differences were found in both positive (p = 0.039; d = 0.28) and negative emotional reactivity scales (p < 0.001; d = 0.60), with females reported lower and higher values, respectively. Professional athletes presented higher scores in positive reactivity scale in comparison to non-athletes (p < 0.001; d = 0.78) and recreational athletes (p = 0.034; d = 0.34) during 2 weeks of COVID-19 lockdown. Conversely, professional athletes scored lower in negative emotional reactivity scale in comparison to non-athletes (p < 0.001; d = 0.85) and recreational athletes (p = 0.006; d = 0.42). Both gender and sports engagement level differences were found for negative, but not for positive emotion regulation scale. Furthermore, results showed that engagement in sports level plays a significant role as moderator in relationship between negative regulation and negative reactivity, where professional athletes presented significant interaction effect and predicted lower negative reactivity scores compared to non-athletes and recreational athletes. However, gender does not moderate the influence of emotion regulation on emotional reactivity either positive or negative. Engagement in sports as a lifestyle may contribute to better emotional harmony especially in the crisis situation as COVID-19 lockdown.

Differences in Reactions to Media Reporting of a Celebrity Suicide Between Emotionally Distressed and Nondistressed Individuals in Taiwan.

Background: The differences in emotional reactions toward media reports of celebrity suicides between distressed and non-distressed individuals have rarely been explored. Aim: We aimed to explore differences in reaction patterns to the news coverage of a celebrity's suicide between distressed and nondistressed individuals in Taiwan. Method: We conducted an Internet survey to assess the impact of the news coverage of a celebrity's suicide. A series of χ2 tests, Spearman's rank correlations, and logistic regression analyses were performed to compare the differences in emotional involvement and psychological impact after exposure to suicide news between distressed and nondistressed individuals. Results: A total of 1,258 Internet users responded to the survey (236 men and 1,020 women). Compared with nondistressed individuals, distressed individuals (n = 537) were more likely to feel suicidal (11% vs. 2%, p < .001) after reading the news. They were less willing to seek help when in need (62% vs. 77%, p < .001). All the variables remained significant after adjustment for sociodemographic variables in regression analyses. Limitations: The Internet-based survey may suffer from selection bias. Conclusion: Extensive media reporting of suicide stories has a profound impact on readers, particularly on vulnerable groups. Responsible reporting of suicide incidents is crucial for suicide prevention.

Contributions of Emotion Regulation and Brain Structure and Function to Adolescent Internalizing Problems and Stress Vulnerability During the COVID-19 Pandemic: A Longitudinal Study

BackgroundAdolescence is a period of increased vulnerability for internalizing problems, particularly following stressful life events. We examined how emotion regulation and brain structure and function were associated with internalizing problems during the COVID-19 pandemic and moderated the association between pandemic-related stressors and internalizing problems. MethodsData are from a longitudinal sample (N = 145, age range, 10–15 years) strategically assessed at 3 crucial time points: before the COVID-19 pandemic, early during the stay-at-home order period, and again 6 months later. We examined associations of amygdala and hippocampal volume and amygdala activation during an emotional processing task before the pandemic, examined use of emotion regulation strategies before and during the pandemic, and examined pandemic-related stressors with internalizing problems. ResultsGreater exposure to pandemic-related stressors was associated with higher internalizing problems both early and later in the COVID-19 pandemic. Youths who reported more frequent use of rumination before the pandemic and higher use of expressive suppression and lower use of cognitive reappraisal early in the pandemic had higher internalizing problems early in the pandemic. Higher left amygdala activation to neutral relative to fearful faces before the pandemic was associated with greater internalizing problems and a stronger link between pandemic-related stressors and internalizing problems early in the pandemic. ConclusionsStressors related to the COVID-19 pandemic are strongly associated with adolescent internalizing problems, as are individual differences in emotional reactivity and regulation and their underlying neural mechanisms. Interventions that reduce pandemic-related stressors and foster adaptive emotion regulation skills may protect against adolescent psychopathology during this period of heightened exposure to stress.

Affective styles and emotional lateralization: A promising framework for animal welfare research

The growing recognition of animals as individuals has broader implications for farm animal welfare research. Even under highly standardized on-farm conditions, farm animals show heterogeneous but individually consistent behavioural patterns towards various stimuli, based on how they appraise these stimuli. As a result, animal welfare is likely to be highly individual as well, and studying the proximate mechanisms underlying distinct individual behaviour patterns and appraisal will improve animal welfare research. We propose to extend the framework of affective styles to bridge the gap between existing research fields on animal personality and affective states. Affective styles refer to consistent individual differences in emotional reactivity and regulation and can be predicted by baseline cerebral lateralization. Likewise, animals with consistent left or right motor biases—a proxy measure of individual patterns in cerebral lateralization—have been shown to differ in their personality, emotional reactivity, motivational tendencies or coping styles. In this paper, we present the current knowledge of the links between laterality and stable individual traits in behaviour and affect in light of hypotheses on emotional lateralization. Within our suggested framework, we make recommendations on how to investigate affective styles in non-human animals and give practical examples. This approach has the potential to promote a science of affective styles in nonhuman animals and significantly advance research on animal welfare.

Differences in emotional reactions of Greek, Hungarian, and British users of English when watching television in English

AbstractWe investigated differences in self‐reported Emotional Reactions (ER) of first (L1) and foreign (LX) language users of English when watching television in English and identified the predictors. Participants were 271 British citizens, 282 Greek, and 271 Hungarians living in their home country. English LX users had significantly lower values for ER compared to L1 users. Frequency of watching television in English and Trait Emotional Intelligence were the strongest predictors of ER among LX users. No significant predictors emerged for L1 users. Significant differences emerged between the Greeks and Hungarians despite having similar levels of proficiency. This suggests that the implicit assumption in previous research that any group of LX users with the same L1 and LX represent all LX users in the world is incorrect.

Chronic stress in adolescence differentially affects cocaine vulnerability in adulthood in a selectively bred rat model of individual differences: role of accumbal dopamine signaling

Stress during adolescence has profound effects on the onset and severity of substance use later in life. However, not everyone with adverse experiences during this period will go on to develop a substance use disorder in adulthood, and the factors that alter susceptibility to substance use remain unknown. Here, we investigated individual differences in response to stress and drugs of abuse using our selectively bred high-responder (bHR) and low-responder (bLR) rats. These animals model extremes of temperamental tendencies and differ dramatically in both stress responsiveness and addiction-related traits. The present study investigated how environmental interventions in the form of a chronic variable stress (CVS) regimen in early adolescence interact with the bHR/bLR phenotype to alter behavioral sensitization to cocaine in adulthood. We also determined whether accumbal dopamine signaling is involved in the interaction of stress history and cocaine by assessing the mRNA levels of dopamine D1 (D1R) and D2 (D2R) receptors. Our results showed that CVS history alone had enduring and phenotype-specific effects on accumbal dopamine signaling. Importantly, adolescent stress had opposing effects in the two lines- decreasing the locomotor response to cocaine challenge in bHRs but increasing this measure in bLRs. Moreover, these opposing effects on cocaine sensitivity following adolescent CVS were accompanied by parallel effects in the accumbal dopamine system, with prior stress and cocaine exposure interacting to decrease D2R mRNA in bHRs but increase it in bLRs. Overall, these findings indicate that environmental challenges encountered in adolescence interact with genetic background to alter vulnerability to cocaine later in life. Lay Summary Stress experienced during adolescence affects the onset and severity of drug dependence later in life. However, not everyone with adverse experiences during this period will go on to develop SUD in adulthood. Using a rat model of innate differences in emotional reactivity, this study shows that the interplay between individual temperament and previous experience of adolescent stress/trauma determines whether an individual will be vulnerable or resilient to develop SUDs later in life. In addition, the present study shows that the dopamine D2 receptor in the brain’s reward center, nucleus accumbens, may be implicated in this interplay.