Partner's Behavior Research Articles

Surface temperatures are influenced by handling stress independently of corticosterone levels in wild king penguins (Aptenodytes patagonicus)

Assessing the physiological stress responses of wild animals opens a window for understanding how organisms cope with environmental challenges. Since stress response is associated with changes in body temperature, the use of body surface temperature through thermal imaging could help to measure acute and chronic stress responses non-invasively. We used thermal imaging, acute handling-stress protocol and an experimental manipulation of corticosterone (the main glucocorticoid hormone in birds) levels in breeding king penguins (Aptenodytes patagonicus), to assess: 1. The potential contribution of the Hypothalamo-Pituitary-Adrenal (HPA) axis in mediating chronic and acute stress-induced changes in adult surface temperature, 2. The influence of HPA axis manipulation on parental investment through thermal imaging of eggs and brooded chicks, and 3. The impact of parental treatment on offspring thermal's response to acute handling.Maximum eye temperature (Teye) increased and minimum beak temperature (Tbeak) decreased in response to handling stress in adults, but neither basal nor stress-induced surface temperatures were significantly affected by corticosterone implant. While egg temperature was not significantly influenced by parental treatment, we found a surprising pattern for chicks: chicks brooded by the (non-implanted) partner of corticosterone-implanted individuals exhibited higher surface temperature (both Teye and Tbeak) than those brooded by glucocorticoid-implanted or control parents. Chick's response to handling in terms of surface temperature was characterized by a drop in both Teye and Tbeak independently of parental treatment.We conclude that the HPA axis seems unlikely to play a major role in determining chronic or acute changes in surface temperature in king penguins. Changes in surface temperature may primarily be mediated by the Sympathetic-Adrenal-Medullary (SAM) axis in response to stressful situations. Our experiment did not reveal a direct impact of parental HPA axis manipulation on parental investment (egg or chick temperature), but a potential influence on the partner's brooding behaviour.

Injection network drivers of HIV prevention service utilization among people who inject drugs: results of a community-based sociometric network cohort in New Delhi, India.

Injection drug networks may influence their network members' health-seeking behaviours. Using data from a sociometric injecting partner network of people who inject drugs (PWID) in New Delhi, India, we assessed the role of injecting partner (alter) behaviours on individual engagement in HIV prevention services. We enumerated injecting partner linkages among 2512 PWID using coupon referrals and biometric data from November 2017 to March 2020. Participants completed interviewer-administered questionnaires and provided information on injection behaviours, injecting partners, HIV/hepatitis C (HCV) testing and service engagement. Multilevel multiple-membership models (MMMM) evaluated individual PWID HIV testing, medication for opioid use disorder (MOUD) and syringe service engagement as a function of alter attributes, accounting for membership across multiple ego-networks. Logistic regression models assessed parallel associations among socially proximal injecting peers, defined as PWID ≤3 path length from ego. Median age was 26 years; 99% were male. PWID had median 2 injecting partners and 8 socially proximal peers; 14% reported HIV testing, 33% accessed MOUD and 13% used syringe services 6 months prior. In MMMM analyses, PWID with ≥1 versus 0 injecting partners who received HIV testing were significantly more likely to report HIV testing (adjusted odds ratio [aOR]: 2.27, 95% confidence interval [CI]: 1.68-3.16), MOUD (aOR: 1.99, 95% CI: 1.60-2.53) and syringe service use (aOR: 1.66, 95% CI: 1.21-2.39). We observed similar findings for individual MOUD and syringe service use. Having ≥1 versus 0 HIV-positive partners was associated with decreased HIV testing and MOUD but increased syringe service use (aOR: 1.54, 95% CI: 1.09-2.17). PWID with ≥1 versus 0 socially proximal peers who used non-sterile injection equipment reported increased HIV testing (aOR: 1.39, 95% CI: 1.01-1.92), MOUD (aOR: 1.40, 95% CI: 1.10-1.77) and syringe service use (aOR: 1.82, 95% CI: 1.23-2.68). We found differential associative relationships between individual HIV prevention service engagement and the health or risk behaviours of direct and indirect alters. Characterizing network exposure beyond direct injecting partnerships provided important context on possible mechanisms of behavioural influence. Findings could be leveraged to design peer-based interventions that promote network diffusion of health-seeking behaviours.

I think you might like me: Emergence and change of meta-liking in initial social interactions.

Feeling accepted by others is a fundamental human motive and an important marker of successful social interactions. This interpersonal perception, known as meta-liking, is especially relevant during adolescence, when peer relationships deepen and expand. However, knowledge is limited regarding meta-liking formation in initial social interactions. This study investigated whether adolescents (N = 293, Mage = 15.48, 61.10% female) have default expectations for meta-liking at zero acquaintance and how these judgments are updated during initial group interactions. Specifically, we used latent change models to examine how personality traits predicted initial meta-liking and whether personality and social interaction experiences were linked to changes in meta-liking judgments throughout an interaction. Our findings revealed three key insights: First, meta-liking increased gradually over the course of the interaction, with substantial individual differences in both default meta-liking and change scores. Second, extraversion, neuroticism, and self-esteem predicted initial meta-liking. Third, liking others was also linked to initial meta-liking and early changes, while meta-liking changes toward the end of the interaction occurred independent of all these features and were not predicted by expressive behaviors of interaction partners. This study represents a first empirical test of default expectations and updates in meta-liking based on personality characteristics and social interaction experiences in initial social interactions. We discuss our results in terms of a broader framework for understanding how metaperceptions are formed and updated early in the acquaintance process. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Are you Cheating on Me? Identifying Factors Contributing to the Use of Suspicion Confirmation and Avoidance Strategies

This study integrates communication, motivational, and behavioral elements to identify factors that lead to the use of key information seeking strategies people employ to confirm or avoid suspicions about a partner’s potential cheating. Individuals (N = 246) who suspected a partner’s infidelity reported engaging in five general suspicion confirmation strategies: conversation, intrusion, snooping, surveillance, and avoidance. SEM results revealed that individuals who reported more suspicious partner behavior, greater suspicion and uncertainty about a partner’s infidelity, suspicion-related anxiety, and a stronger desire to confirm their suspicions reported using the suspicion confirmation and avoidance strategies more often.

Experiences with health care services and HIV testing after sexual assault in cisgender gay, bisexual and other men who have sex with men and transgender people.

This qualitative sub-study aimed to explore how cisgender gay, bisexual, and other men who have sex with men (cis-GBMSM) and transgender people who reported non-consensual sex (NCS) accessed health care services, what barriers they faced, and how this experience influenced subsequent HIV testing. SELPHI is an online randomized controlled trial evaluating both acceptability and efficiency of HIV-self testing among cis-GBMSM and transgender people. Semi-structured interviews were conducted, audio-recorded, transcribed, and analysed through a framework analysis, as a qualitative sub-study. We identified narratives of NCS from interviews and investigated experiences of cis-GBMSM and transgender people accessing health care services following sexual assault. Of 95 participants, 15 (16%) spontaneously reported NCS. Participants reported a broad range of NCS, including partner's coercive behaviours, non-consensual removal of condoms, and rapes. All feared HIV transmission, leading them to test for HIV, underlining a marked lack of awareness of post-exposure prophylaxis (PEP). Most had negative experiences in communicating with reception staff in sexual health clinics following these incidents. A lack of confidentiality and empathy was described in these situations of psychological distress. Clinic visits were primarily focused on testing for HIV and sexually transmitted infection, and generally no specific psychological support was offered. Getting a negative HIV result was a key step in regaining control for people who experienced NCS. Sexual health care providers should take care to more fully address the issue of NCS with cis-GBMSM and transgender people when it arises. Recognizing and managing the emotional impact of NCS on affected patients would prevent negative experiences and increase confidence in care.

Size dependent antipredator responses in a fish-shrimp mutualism.

For prey, taking refuge from predators has obvious fitness benefits but may also be costly by impinging on time and effort available for feeding or attracting mates. The antipredator responses of refuge-seeking animals are therefore predicted to vary strategically depending on how threatening they perceive the risk. To test this, we studied the impacts of a simulated predatory threat on the antipredator responses of wild sandy prawn-gobies (Ctenogobiops feroculus) that co-inhabit burrows with Alpheus shrimp (family Alpheidae) in a mutualistic relationship. We exposed goby-shrimp pairs, repeatedly on three separate occasions, to an approaching threat and measured the antipredator behaviours of both partners. We found that re-emerging from the burrow took longer in large compared to small fish. Moreover, quicker re-emergence by small-but not medium or large-sized gobies-was associated with an earlier flight from the approaching threat (i.e. when the threat was still further away). Finally, the goby and shrimp sharing a burrow were matched in body size and their risk-taking behaviour was highly dependent on one another. The findings contribute to our understanding of how an individual's phenotype and perception of danger relates to its risk-taking strategy, and how mutualistic partners can have similar risk sensitivities.

Same-Day and Next-Day Associations Between Relational Factors and Intimate Partner Violence in Young Adult Couples.

The prevalence of intimate partner violence (IPV) is high, with young adults at increased risk. IPV is largely understood as a dyadic process, as it involves both partners and is inherently influenced by the behaviors of both partners. The objective of this study was to examine the proximal influence of relationship satisfaction and conflict on same-day and nextday IPV perpetration among young adult couples. This study used data from young adult couples (N = 172) who completed a 60-day daily-diary design. The Actor Partner Interdependence Model was used to examine whether within- and between-person levels of relationship satisfaction and conflict were associated with same-day and next-day IPV perpetration. Results suggest that high levels of one's own and one's partner's relationship satisfaction was associated with low levels of same-day and next-day psychological IPV. For women, but not men, high levels in their own and their partner's relationship satisfaction were associated with low levels in same-day physical IPV perpetration. Conversely, high levels in one's own and their partner's conflict was associated with high levels of same-day psychological IPV perpetration. For women, but not men, high levels in their partner's conflict were associated with high levels of same-day physical IPV perpetration. Results suggest that relationship dissatisfaction and conflict may be proximal risk factors for IPV perpetration, particularly psychological IPV perpetration, implying these factors may be effective targets for prevention and intervention.

The effects of contractual and relational governance on public‐private partnership sustainability

AbstractThe study investigates how contractual and relational governance influence partner behaviors and promote sustainability performance of infrastructure public‐private partnerships (PPPs). Survey data from 217 Chinese PPP projects were analyzed using partial least squares structural equation modeling. This study found that both contractual and relational governance have positive effects on PPP sustainability, with contractual governance having a stronger impact. Contractual governance complements relational governance in promoting cooperative behavior, but relational governance does not amplify the effect of contractual governance on opportunistic behavior. The findings highlight the role of contracts in curbing opportunism and promoting collaboration via multiple functions of control, coordination, and adaption, while also revealing the limitations of relational approaches in the context of government‐business relationships and performance ambiguity. This study contributes to the PPP governance literature by uncovering the individual and interactive effects of contractual and relational governance on the economic, social, and environmental aspects of PPP sustainability.

Behavioral Modeling and its Association with PrEP and ART Use in Ugandan HIV-Serodifferent Couples

Integrating Pre-Exposure Prophylaxis (PrEP) delivery into Antiretroviral Therapy (ART) programs bridges the Human Immunodeficiency Virus (HIV) prevention gap for HIV-serodifferent couples prior to the partner living with HIV achieving viral suppression. Behavioral modeling is one mechanism that could explain health-related behavior among couples, including those using antiretroviral medications, but few tools exist to measure the extent to which behavior is modeled. Using a longitudinal observational design nested within a cluster randomized trial, this study examined the factor structure and assessed the internal consistency of a novel 24-item, four-point Likert-type scale to measure behavioral modeling and the association of behavioral modeling with medication-taking behaviors among heterosexual, cis-gender HIV-serodifferent couples. In 149 couples enrolled for research, a five-factor model provided the best statistical and conceptual fit, including attention to partner behavior, collective action, role modeling, motivation, and relationship quality. Behavioral modeling was associated with medication-taking behaviors among members of serodifferent couples. Partner modeling of ART/PrEP taking could be an important target for assessment and intervention in HIV prevention programs for HIV serodifferent couples.

The relationship between intimate partner behaviour control and impulsivity among college students: the chain mediating effect of autonomy needs satisfaction and intimacy quality

Using the Intimate Partner Behaviour Control Scale, the Autonomy Needs Questionnaire, the Intimacy Quality Questionnaire, and the Chinese version of the Brief Barratt Impulsiveness Scale, we conducted a survey of 416 college students (204 males and 212 females) with a mean age of 24.99 (SD = 7.94) years. The aim of this research was to explore the relationship between intimate partner behaviour control and impulsivity with a focus on the roles of autonomy needs satisfaction and intimacy quality in the context of college students in romantic relationships. The findings indicated that (1) intimate partner behaviour control significantly and positively predicts impulsivity among college students; (2) autonomy needs satisfaction plays a mediating role in the relationship between intimate partner behaviour control and impulsivity among college students; (3) intimacy quality also plays a mediating role in the relationship between intimate partner behaviour control and impulsivity among college students; (4) autonomy needs satisfaction and intimacy quality jointly play a chain mediating role in the relationship between intimate partner behaviour control and impulsivity among college students. These results highlight the close relationship between intimate partner behaviour control and impulsivity, in which context autonomy needs and intimacy quality play a vital role. The findings of this research offer practical insights for mental health practitioners with regard to preventing and intervening in impulsive behaviour among college students as well as guidance for policy plans that aim to promote healthy relationships and prevent intimate partner violence.

How individuals perceive their partner's relationship behaviors when worrying about finances.

What role do financial worries play in close relationship functioning? In this research, we examine how financial worry - negative thoughts and feelings about finances - is associated with perceived relationship behaviors. Participants recalled how their partner acted during a recent disagreement (Study 1, N = 97 couples) or recalled the frequency of positive and negative behaviors enacted by their partner during the previous week (Study 2, N = 99 couples). Feeling more worried about finances was associated with recalling less supportive behavior from one's partner at the disagreement (Study 1) and with perceiving more negative behaviors from one's partner in the last week (Study 2). Truth and Bias Model analyses suggest that part of this link may be attributed to biased perceptions, as the link between financial worry and perceiving more negative behaviors persisted even after controlling for participants' own reported behaviors (i.e., accounting for similarity) and for their partner's own reported behaviors (i.e., accounting for accurate perceptions). In sum, financial worry is linked to how partners notice and interpret a loved one's actions within their relationship.

Strategic social decision making undergoes significant changes in typically developing and autistic early adolescents.

Information sampling about others' trustworthiness prior to cooperation allows humans to minimize the risk of exploitation. Here, we examined whether early adolescence or preadolescence, a stage defined as in between childhood and adolescence, is a significant developmental period for strategic social decisions. We also sought to characterize differences between autistic children and their typically developing (TD) peers. TD (N=48) and autistic (N=56) 8- to 12-year-olds played an online information sampling trust game. While both groups adapted their information sampling and cooperation to the various trustworthiness levels of the trustees, groups differed in how age and social skills modulated task behavior. In the TD group social skills were a stronger overall predictor of task behavior. In the autistic group, age was a stronger predictor and interacted with social skills. Computational modeling revealed that both groups used the same heuristic information sampling strategy-albeit older TD children were more efficient as reflected by decreasing decision noise with age. Autistic children had lower prior beliefs about the trustee's trustworthiness compared to TD children. These lower priors indicate that children believed the trustees to be less trustworthy. Lower priors scaled with lower social skills across groups. Notably, groups did not differ in prior uncertainty, meaning that the priors of TD and autistic children were equally strong. Taken together, we found significant development in information sampling and cooperation in early adolescence and nuanced differences between TD and autistic children. Our study highlights the importance of deep phenotyping of children including clinical measures, behavioral experiments and computational modeling. RESEARCH HIGHLIGHTS: We specified how early adolescents with and without an autism diagnosis sampled information about their interaction partners and made cooperation decisions in a strategic game. Early adolescence is a significant developmental period for strategic decision making, marked by significant changes in information sampling efficiency and adaptivity to the partner's behavior. Autistic and non-autistic groups differed in how age and social skills modulated task behavior; in non-autistic children behavior was more indicative of overall social skills. Computational modeling revealed differences between autistic and non-autistic groups in their initial beliefs about cooperation partners; autistic children expected their partners to be less trustworthy.

CHRONIC CONDITION DISCORDANCE WITHIN OLDER COUPLES: IMPLICATIONS FOR HEALTH AND WELL-BEING

Abstract Nearly half of U.S. adults aged 45-64 and over 80% of those 65 and older have two or more potentially debilitating chronic conditions such as arthritis, diabetes, and heart disease. Chronic condition discordance (i.e., the extent that two or more conditions have non-overlapping self-management requirements) increases care complexity and can make multiple chronic conditions more difficult to manage. Most research on multimorbidity and chronic condition discordance focuses on individuals, however older adults with chronic conditions often have a spouse or partner with chronic health problems that further complicate self-care. Our dyadic concordance model of multimorbidity posits that chronic condition discordance at the individual level (i.e., discordance in two or more chronic conditions within individuals) and the couple level (i.e., discordance in two or more chronic conditions between spouses) has adverse implications for the psychological well-being and self-management behaviors of both partners. We discuss key findings that support this model using longitudinal data from the Health and Retirement Study, which include the implications of individual-level and couple-level chronic condition discordance for depressive symptoms, physical activity, alcohol use, and global and health-related perceived control over time. We then describe how these findings inform clinical care and interventions to improve the health and well-being of couples living with multiple chronic conditions. Finally, we propose future directions to build on and expand the dyadic concordance model of multimorbidity and its use in understanding how older adults manage multiple chronic conditions within the context of their close relationships.

Putting language switching in context: Effects of sentence context and interlocutors on bilingual switching.

Many bilinguals switch languages in daily-life conversations. Although this usually happens within sentence context and with another speaker, most research on the cognitive mechanisms underlying the production of language switches has studied individual words. Here, we examined how context influences both switching frequency and the temporal cost associated with it. Sixty Bulgarian-English bilinguals named pictures in their language of choice without any context, in a sentence context, and in interaction with another (recorded) bilingual. Switching frequency was lower, and costs higher, when bilinguals switched languages with context than without context. This suggests switching costs were not an artifact of tasks without context. Furthermore, both switching frequency and costs correlated across the tasks. In addition, we examined the potential influence of sentence context and the conversation partner. Predictability in sentence context has previously been argued to reduce language competition, which in turn could influence switching. We therefore compared sentences with a predictable or unpredictable target word. As hypothesized, bilinguals were less likely to switch languages when a word was predictable in its sentence context, potentially because words in the other language were less active. The conversation partner's overall switching behaviour had little impact on a bilingual's general switching rate, showing relatively low global alignment. However, local alignment was observed as switching was influenced by the partner's switching in the immediately preceding utterance. Together, these findings show that while production tasks without context can reliably measure switching costs, studying effects of context is necessary to better capture a bilingual's language-switching behavior. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Applying the Social-Ecological Framework to Link the Drivers of Intimate Partner Violence Among Women in the Caribbean and Their Risk for HIV Infection.

For countries with a high prevalence of HIV such as in the Caribbean, intimate partner violence (IPV) may increase the chances for acquiring HIV infection.Using secondary data, we compared findings from studiesconducted in five Caribbean countries measuring the prevalence of gender-basedviolence among women in Grenada, Jamaica, Guyana, Suriname, and Trinidad and Tobago. The Social-Ecological Framework was usedto categorize women's dualrisk for intimate partner violence and HIV. We found thatyounger age, lower education, childhood experiences of abuse, income dependency, controlling behaviors of partners, non-disclosure of violence, and early sexual experiences were associated with intimate partner violence. Thesefactors also predisposewomenin the Caribbean to HIV infection. The Social-Ecological Framework is applicable to understanding the drivers of intimate partner violence and HIV infectionat multiple levelsand for the design and promotion of combined prevention interventions.Our study also demonstrated the applicability of the Social-Ecological Framework as an analytical and predictive model underscoring the need for increased coordination across multiple actors tostrengthen advocacy, given the pervasiveness of harmful social norms and gender inequalities whichundermine IPV and HIV control efforts.

Depressed mood and perception of negative partner behavior in couple interactions: A daily diary study

AbstractDespite extensive research on depression and couple interactions, little is known about how depressed mood influences couples' experience of everyday life interactions. In this study, data were gathered from 72 different‐gender couples (N = 144 individuals), who reported their feelings, behavior, and perceptions of their partner's behavior several times a day over 14 days. The study revealed that when individuals reported feeling more depressed, they perceived their romantic partner's behavior as more distant and hurtful, and they felt treated worse and more rejected. Moreover, when individuals reported feeling more depressed, their romantic partners perceived them as more distant, and they reported feeling treated worse and more rejected. However, depressed mood did not predict subsequent relationship perceptions in time‐lagged associations, and the directionality from relationship perceptions to depressed mood was inconclusive.

Communal coping and glycemic control: Daily patterns among young adult couples with type 1 diabetes.

Young adulthood is a time when persons with Type 1 diabetes (T1D) become more fully responsible for diabetes management. Establishing healthy diabetes routines during this period is foundational for successful management across adulthood. Although partner support is generally considered helpful in T1D management, less is known about specific partner behaviors that could benefit glucose levels. The aim of this study was to explore associations between communal coping behaviors and T1D glucose management. During 2018-2020, 23 young married opposite-sex couples (Mage = 25.7 years), wherein one spouse had T1D, completed daily measures of communal coping for 9 consecutive days. Daily average glucose and time-in-range were computed from the person with T1D's glucose meter or continuous glucose monitor. Multilevel model results suggested that higher time-in-range on a given day was predicted by reports of lower daily spousal instrumental support, lower overprotective and controlling behaviors, and by higher emotional support. Controlling spousal behavior on one day was associated with higher time-in-range the next day. At the same time, patient reports of higher average spousal controlling behavior (across all days) were associated with lower time-in-range and higher average glucose. Average glucose was also predicted by communal coping behaviors (especially within-person higher instrumental support), yet results were less robust after covariates were considered. Some young romantic partners may engage in behaviors that are associated with higher average blood glucose and lower time-in-range for the person with T1D. Persons with T1D could communicate to their partners types of support that are helpful versus not. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Neuromodulation of the Left Inferior Frontal Cortex Affects Social Monitoring during Motor Interactions.

Motor interactions require observing and monitoring a partner's performance as the interaction unfolds. Studies in monkeys suggest that this form of social monitoring might be mediated by the activity of the ventral premotor cortex (vPMc), a critical brain region in action observation and motor planning. Our previous fMRI studies in humans showed that the left vPMc is indeed recruited during social monitoring, but its causal role is unexplored. In three experiments, we applied online anodal or cathodal transcranial direct current stimulation over the left lateral frontal cortex during a music-like interactive task to test the hypothesis that neuromodulation of the left vPMc affects participants' performance when a partner violates the agent's expectations. Participants played short musical sequences together with a virtual partner by playing one note each in turn-taking. In 50% of the trials, the partner violated the participant's expectations by generating the correct note through an unexpected movement. During sham stimulation, the partner's unexpected behavior led to a slowdown in the participant's performance (observation-induced posterror slowing). A significant interaction with the stimulation type showed that cathodal and anodal transcranial direct current stimulation induced modulation of the observation-induced posterror slowing in opposite directions by reducing or enhancing it, respectively. Cathodal stimulation significantly reduced the effect compared to sham stimulation. No effect of neuromodulation was found when the partner behaved as expected or when the observed violation occurred within a context that was perceptually matched but noninteractive in nature. These results provide evidence for the critical causal role that the left vPMc might play in social monitoring during motor interactions, possibly through the interplay with other brain regions in the posterior medial frontal cortex.

Social metacognition drives willingness to commit.

Showing or telling others that we are committed to cooperate with them can boost social cooperation. But what makes us willing to signal our cooperativeness, when it is costly to do so? In two experiments, we tested the hypothesis that agents engage in social commitments if their subjective confidence in predicting the interaction partner's behavior is low. In Experiment 1 (preregistered), 48 participants played a prisoner's dilemma game where they could signal their intentions to their co-player by enduring a monetary cost. As hypothesized, low confidence in one's prediction of the co-player's intentions was associated with a higher willingness to engage in costly commitment. In Experiment 2 (31 participants), we replicate these findings and moreover provide causal evidence that experimentally lowering the predictability of others' actions (and thereby confidence in these predictions) motivates commitment decisions. Finally, across both experiments, we show that participants possess and demonstrate metacognitive access to the accuracy of their mentalizing processes. Taken together, our findings shed light on the importance of confidence representations and metacognitive processes in social interactions. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Learning Person-Specific Cognition From Facial Reactions for Automatic Personality Recognition

This paper proposes to recognise the true (self-reported) personality traits from the target subject's cognition simulated from facial reactions. This approach builds on the following two findings in cognitive science: (i) human cognition partially determines expressed behaviour and is directly linked to true personality traits; and (ii) in dyadic interactions, individuals' nonverbal behaviours are influenced by their conversational partner's behaviours. In this context, we hypothesise that during a dyadic interaction, a target subject's facial reactions are driven by two main factors: their internal (person-specific) cognitive process, and the externalised nonverbal behaviours of their conversational partner. Consequently, we propose to represent the target subject's (defined as the listener) person-specific cognition in the form of a person-specific CNN architecture that has unique architectural parameters and depth, which takes audio-visual non-verbal cues displayed by the conversational partner (defined as the speaker) as input, and is able to reproduce the target subject's facial reactions. Each person-specific CNN is explored by the Neural Architecture Search (NAS) and a novel adaptive loss function, which is then represented as a graph representation for recognising the target subject's true personality. Experimental results not only show that the produced graph representations are well associated with target subjects' personality traits in both human-human and human-machine interaction scenarios, and outperform the existing approaches with significant advantages, but also demonstrate that the proposed novel strategies help in learning more reliable personality representations.