Parenting is one of the most salient influences in children's development, particularly during early childhood. Substantial theoretical and empirical evidence has linked sociodemographic risk to compromised parenting, and has contributed to the development of two-generation programs to support low-income parents and their young children. Despite decades of research on these families, little is known about how styles of parenting change across time, how children's emotion regulation influences parenting styles, or how risks predict longitudinal stability and change to parenting. Furthermore, it is unclear how one two-generation program, Early Head Start, promotes positive parenting styles and buffers against contextual risks. The aim of the three papers in this dissertation study is to describe maternal parenting within a low-income sample, by linking longitudinal trajectories of parenting to contextual risks, Early Head Start, children's emotion regulation (ER), and risk for child maltreatment. Guided by the bioecological model, and components specific to the Ecological-Transactional Model of Child Maltreatment (Cicchetti et al., 2010), these three papers indicate specific risks that are most salient to exhibiting unsupportive parenting behaviors: family conflict, maternal depression, and attitudes and beliefs that indicate risk for child physical abuse. Furthermore, the papers highlight important methodological considerations for the study of parenting at risk, children's ER, as well as for clinicians assessing risk. The three papers, collectively, highlight the complex interplay of determinants of parenting, including sociodemographic characteristics, psychological factors, interpersonal relationships, child effects, family-level characteristics, and Early Head Start involvement.

Executive Functions (EF) and Emotion Regulation (ER) are essential for children´s ability to regulate and control thoughts, behavior and emotions but the developmental relations between them are unclear. The present study was performed within the project PsPATHS with the purpose to investigate the relation between EF and ER. Performance on cognitive tasks tapping inhibitory control, working memory and cognitive flexibility were combined with teacher report of ER in 55 four to five year old preschool children. Contrary to the hypothesis, no significant relations could be established between EF and ER in this sample. For the EF components, the result showed a significant association between inhibitory control and cognitive flexibility, however, no further associations could be evidenced. The study demonstrates an advantage in using multiple measures and suggests that attention along with motivational and affective aspects of EF should be considered in future research of children´s ability to regulate emotions.

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Contemporary theories frame emotion as an intra-personal system comprised of subcomponents such as experience, expressive behaviors, and physiology that interact over time to give rise to emotional episodes. Emotional episodes occur in the context of a social interaction or an ongoing relationship making it important to also conceptualize the inter-personal emotion system in which the subcomponents of the emotional response interact not only within the individual but across the partners as well. Emotion theory has been constricted by a dominant linear information processing metaphor and has not yet fully embraced a dynamic systems approach integrating concepts of open, self-organizing systems to interpersonal emotion regulation processes. To address these limitations, this study examined the emergence of structure and patterns in real-time dyadic interactions between pairs of female strangers where one partner is purposefully regulating her emotional responding. One member of each dyad was randomly assigned to suppress, positively reappraise, or act normally during an interaction task. Three subcomponents of emotion were examined (expressive behaviors, experience, and physiology) along with three features of dynamic systems (attractor basins, flexibility/entropy, and physiological linkage). Results indicate differences in the emergence of structure and patterns in real-time dyadic interactions that varies by emotional responding type. Suppression dyads were characterized by a non-emotional response attractor, reduced behavioral flexibility, stronger physiological linkage as compared to control and reappraisal dyads. Reappraisal dyads expressed more positive emotions during the interaction than control or suppression dyads, and reappraisal partners showed evidence of positive physiological linkage with the reappraiser. In conclusion, structural patterns do differ by emotion regulation condition indicating the importance of intrapersonal phenomena on the emergence of interpersonal system dynamics.

My goal was to examine potential moderators that affect emotional coordination between romantic partners. I conducted three separate empirical studies that are conceptually related. I used data collected in conjunction with Dr. Emily Butler (all 3 papers), and Dr. Shanmukh Kamble of Karnatak University, India (paper 3). Using models of two forms of emotional coordination in partners - emotion transmission and synchrony - I examined the moderating effects of attachment, cooperation and marriage type on emotional coordination between partners. The purpose of first paper was to examine the role that individual factors, specifically differences in attachment avoidance and anxiety, have on the transmission of emotions between partners. Interestingly, results were counter to hypotheses based on attachment differences in emotion regulation, which suggests the limitations of taking an individual perspective within dyadic contexts. The second paper examined how cooperation impacts emotional coordination between partners. I found that cooperation produces different emotional coordination patterns for men and women. Specifically, when both partners were at high levels of cooperation, men showed an in-phase emotional coordination pattern (changes in unison), whereas women showed an anti-phase emotional coordination (changes in opposite directions). Therefore, while both partners were engaging in similar behaviors their emotional experience was different. In the third paper, I moved to a more global analysis of factors that moderate emotional synchrony between partners. Specifically, I examined how different marriage-types in American and Indian cultures (love versus arranged marriages) impact emotional synchrony between partners. I expected that Indian-love marriages would show similar synchronization patterns to American marriages, and that both would show more synchrony in comparison with Indian-arranged marriages. Unexpectedly, Indian-love and Indian-arranged marriages were similar and both displayed lower synchrony than American couples. These findings suggest that emotional experience between partners may be influenced by the boarder culture, irrespective of marriage type. Taken together, these papers provide evidence for when emotional coordination between couples can have beneficial or detrimental effects on the relationship, depending on individual, dyadic and cultural factors.

This thesis examines the validity of polyvagal theory as a model of normal socio-emotional responding (Porges, 1995, 2001, 2003a). Polyvagal theory makes several claims, and to date many of its predictions lack empirical testing. In the current research, five main hypotheses stemming from polyvagal theory were identified and tested using healthy participants. The initial empirical study examined the influence of laboratory stressors on autonomic function. The findings revealed that social evaluative threat increases activation of the sympathetic nervous system more than a virtual reality maze, and that arousal remains elevated for longer during anticipation of social evaluative threat in comparison to recovery from social evaluative threat. The second study investigated the effects of emotion regulation strategies on autonomic function, and highlighted the effectiveness of two meditation practices in reducing defensive physiological arousal and increasing subjective positive emotion. These studies were followed with a set of studies designed to evaluate the effects of defensive physiological arousal on socio-emotional functioning, as a direct test of polyvagal theory. The first study examined the effects of a laboratory stressor on facial expressivity, revealing that social evaluative threat had little impact on expressive regulation. A second study investigated the effects of a laboratory stressor on emotional sensitivity and spontaneous facial mimicry. Some limited support was found for polyvagal theory, although neither emotional sensitivity nor facial mimicry was significantly affected by laboratory stress. A final empirical study investigated the effects of a laboratory stressor on affiliation tendencies. The laboratory stressor did not influence participants’ willingness to spend time with others, however the experiment did reveal significant relationships between markers of social safeness and affiliation. The overall conclusion of this thesis is that polyvagal may not be a representative model of socio-emotional functioning in healthy participants. The implications of these findings are discussed in relation to the validity of polyvagal theory as a universal model of socio-emotional responding.

Growing bodies of research suggests associations between regular physical activity (PA) and emotional health. One promising mechanism of this association is a cognitive process called cognitive control. Emerging evidence links regular PA to better cognitive control in young adult populations (e.g., Themanson, Pontifex & Hillman, 2008; Winneke et al., 2011). However, almost no research has examined associations between regular PA and cognitive control task performance with emotionally-charged stimuli. Such tasks have the potential to help detect cognitive benefits of regular PA and may more effectively elicit cognitive processes related to emotional functioning than do emotionally-neutral tasks. The current study investigated whether cognitive control is a mechanism that links regular PA and emotional functioning in young adults, particularly when emotional processing in incorporated. In other words, cognitive control, particularly in the face of emotional distractors, was expected to mediate the association between regular PA and emotional health. Participants in this study comprised 115 young adults from an undergraduate population who responded to self-report measures of PA level and emotional functioning, completed neutral and emotional cognitive control tasks, and participated in a fitness assessment. Bootstrapping to assess indirect effects revealed that contrary to hypotheses, performance on neutral and emotional cognitive control tasks did not mediate the association between PA level and emotional functioning. Regular PA was not associated with better neutral or emotional cognitive control, nor did it relate significantly to emotional functioning. Further, neither neutral nor emotional cognitive control showed a relationship with emotional functioning. Implications and future directions are discussed.

This thesis presents six original experiments investigating the relationship between age-related gains and losses in cognitive and emotional abilities and consumer decision making. Novel tasks designed to closely resemble real consumer decisions were used to assess how older and younger adults fare when making everyday decisions. Experiments 1 and 2 examined the relationship between consumer decision making and measures of fluid intelligence, crystallised intelligence and numeric ability in older and younger adults. The data revealed that numeric ability and fluid intelligence independently predicted consumer decision making in older adults. In Experiment 1, participants made factual and inferential decisions about utility suppliers. Findings were corroborated in Experiment 2 using a larger sample and an additional consumer decision task based on selecting a mobile phone provider. Experiment 2 also revealed numeric ability as an independent predictor of young adult’s consumer decision making. Experiment 3 assessed the interplay between age, cognitive resources and emotion regulation. Cognitive resources were assessed by the number of times older and younger adults decided to stick with a pre-selected option, switch to an alternative option or decide in the future. Results suggested that older and younger adults required differing amounts of resources to regulate emotions in accordance with different emotion regulation strategies. Older adults made better consumer decisions when instructed to regulate their emotions by way of reappraisal and younger participants made better consumer decisions when instructed to regulate their emotions using suppression. These results were contrary to what was expected based on previous research on emotion regulation. Because of this, two exploratory experiments were conducted on young adults in an attempt to identify a reliable methodology for inducing and measuring affects more typically associated with self-regulation. These experiments revealed some surprising findings. Participants exposed to manipulations high in terms of cognitive demand made better subsequent consumer decisions than participants placed in less demanding conditions. It was hypothesised that participants exposed to demanding manipulations were primed to make more adaptive consumer decisions. A final experiment tested the effect of age and instruction manipulation on consumer decision making. The relationships between cognitive measures of individual differences and decision making were again measured. Results substantiated previous findings revealed in Experiments 1 and 2 insofar that fluid intelligence was found to independently predict consumer decision making performance in older adults. Fluid intelligence and numeric ability predicted consumer decision making in younger adults. In terms of instruction effects, younger and older adults made better decisions when asked to do so in a rational manner compared to an intuitive manner. It is believed that this work represents some of the first of its kind to study the impact of ageing on cognitive ability and decision making using tasks representative of existing consumer decisions in terms of context and response options. The findings presented provide a valid and unique insight into how cognitive and emotional ability changes with age and the subsequent implications this has when making consumer decisions. This thesis concludes with the theoretical and practical implications for the ageing consumer.

Child abuse and neglect is a significant social issue with long term consequences for affected children and young people, including increased risk of emotional and social difficulties. Models of the impacts of maltreatment outline a developmental process in which maltreating parent-child relationships affect the development of neural networks, which in turn undermine developing cognitive processes, including emotion regulation and social understanding, thereby increasing risk of emotional and social difficulties. This study explores a subset of these cognitive processes in a sample of adolescents in long-term out-of-home care as a result of maltreatment, relative to a sample of non-maltreated peers, including situation selection (conditioned avoidance and risk-taking), attentional deployment (attention biases and attention control) and cognitive change (interpretation bias), as well as aspects of social understanding (mentalising, emotion understanding and prosocial responding). Further, the relative effects of maltreatment factors, and the relationship between emotion regulation and social understanding with adolescent adjustment was also explored. Results demonstrated maltreatment-related effects in conditioned avoidance, risk-taking, attention processes and social understanding, and explored the relative effect of exposure to physical abuse on the development of these processes, differences in such processes did not appear to significantly predict poor or normative adjustment of maltreated adolescents. These results are discussed with respect to models of maltreatment, emotion regulation and social understanding, with implications for the development and implementation of interventions.

Adolescence is challenging time for youth with autism spectrum disorder (ASD), who generally exhibit a myriad of psychosocial difficulties. While this developmental period represents an important window for intervention, few evidence-based programs exist. Recent research suggests that interventions targeting emotion regulation (ER) skill deficits in ASD may represent a promising approach to promoting more favourable outcomes for these youth (Mazefsky et al., 2014). Nurturing mindfulness has been shown to be an effective means of improving ER and wellbeing in diverse child and adult populations, although research in ASD is limited. This pilot study evaluated the impact of a 9-week mindfulness intervention on the ER and socioemotional functioning of 14 adolescents (13-17 years) with high functioning ASD using a pre-test post-test design. Parents reported statistically significant changes of small to medium effect size in adolescents’ overall problem behaviours and social skills, ER, adaptability, hyperactivity, and withdrawal behaviours. Additionally, parents reported changes of small effect size that approached significance for adolescents’ anxiety symptoms and atypicality. Adolescents reported changes of small effect size that were statistically significant for anxiety symptoms and interpersonal functioning, and non-significant for depression and social stress symptoms. Changes in many parent-reported outcome variables showed moderate to strong correlations with home practice adherence and parent-reported changes in ER. Qualitative observations of program impact and social acceptability were positive and supported the quantitative findings. The results provide promising evidence for mindfulness training with youth with ASD. Implications for assessment, intervention, and future research are discussed. / October 2016