This thesis examines questions related to the prevalence of anxiety symptomatology and disorders in older adults, and compares two brief low-threshold psychological interventions (blended... Show moreThis thesis examines questions related to the prevalence of anxiety symptomatology and disorders in older adults, and compares two brief low-threshold psychological interventions (blended Acceptance and Commitment Therapy versus face-to-face Cognitive Behavioral Therapy) for older adults with anxiety symptoms in primary care. Show less
The overarching goal of this dissertation was to investigate parenting processes in relation to affective well-being in families in the daily flow of life from different perspectives (i.e.,... Show moreThe overarching goal of this dissertation was to investigate parenting processes in relation to affective well-being in families in the daily flow of life from different perspectives (i.e., adolescent, mother, father), on different levels (i.e., objective, momentary, and daily), and in a clinical sample (families with an adolescent with a depression) in addition to community samples. Our findings underline the importance of daily parental warmth and criticism of mothers and fathers for adolescents’ well-being. In addition, we showed that adolescents, parents, and their perceptions of parenting influence each other and that becoming more attuned to each other’s intention and needs is essential. Importantly, we consistently demonstrated that not only the extent and direction of the dynamic processes between parenting and affect in daily life differs between, but also within persons and families. This stresses the need for research focusing on individual processes and combining quantitative with qualitative measures. The use of more idiographic approaches would not only enable gaining more insight into these differences between individuals, but also contribute to identifying parenting practices that work for almost all adolescents. This would facilitate the development of interventions combining universal parenting principles with suggestions for tailoring it to individual- or family-specific situations. Show less
This dissertation reveals that sound financial decisions are determined by multiple factors and are germane to both financial satisfaction and financial well-being. The most promising factors to... Show moreThis dissertation reveals that sound financial decisions are determined by multiple factors and are germane to both financial satisfaction and financial well-being. The most promising factors to increase financial satisfaction were financial confidence, future orientation, and perceived behavioural control, and the most promising factors to increase financial well-being were the combination of high objective and high subjective financial knowledge and financial self-efficacy. We also found two observations remarkable. First, not all financial behaviours that could be intuitively regarded as positive were immediately beneficial to financial satisfaction or financial well-being. For example, budgeting and making considered purchases could be unpleasant and, therefore, adversely affect financial well-being in the short term. Likewise, adjusting spending based on changing (financial) circumstances and keeping track of expenses could be painful and, hence, adversely impacted financial satisfaction in the short term. Second, not all control skills that could be expected to help people make sound financial decisions, actually do so. For instance, people with more spending self-control reported working less toward their financial goals. It is possible that these people are so focused on curbing purchase impulses, that they forget what they are doing it for, namely to create financial room to achieve their goals. Show less
Creating an optimal start during the first 1,000 days of children is an important focus for researchers and policy makers. Parents can positively influence child development through sensitive... Show moreCreating an optimal start during the first 1,000 days of children is an important focus for researchers and policy makers. Parents can positively influence child development through sensitive parenting, which is the ability to understand and promptly and adequately respond to a child’s signals. This thesis provides insight in the development of sensitive parenting from infancy to toddlerhood in primiparous mothers and fathers through longitudinal data from the Netherlands, United Kingdom, and United States. The results demonstrate that fathers and mothers respond more sensitively to their baby in more ecologically valid contexts, i.e. during situations more representative of their daily reality, than in less ecologically valid contexts. Therefore, we recommend to take context into account when parenting skills are studied and evaluated. Next, we made a first step towards clarity on the way parents reflect on the parent-child relationship during the transition to parenthood and in relation to parental sensitivity. We found weak evidence for the theorized link between this reflection and parental sensitivity. Finally, we found that mothers and fathers are equally sensitive across the first two years, and sensitivity levels during this period increase in both parents, indicating that mothers and fathers actually do become better in sensitive parenting. Show less
This dissertation focuses on an understudied yet common phenomenon: the youth wings of political parties. As Western democracies are characterised by party-related political change, the question is... Show moreThis dissertation focuses on an understudied yet common phenomenon: the youth wings of political parties. As Western democracies are characterised by party-related political change, the question is whether the functioning of party youth wings has changed over time. This study compares the functioning of Dutch party youth wings in the years 1985-1990, a period on the eve of major political changes, with the recent years 2014-2020. Using a combination of qualitative and quantitative research methods, it provides insight into the ability of party youth wings to mobilise, represent and socialise young people into the political system. Show less
This thesis aimed to lay the foundation for a new set of Dutch mental health instruments to measure depression and anxiety in an efficient, reliable, valid, and responsive manner. More specifically... Show moreThis thesis aimed to lay the foundation for a new set of Dutch mental health instruments to measure depression and anxiety in an efficient, reliable, valid, and responsive manner. More specifically, the Dutch-Flemish PROMIS adult v1.0 item banks for Depression and Anxiety were psychometrically evaluated for computerized adaptive test (CAT) administration in the Dutch clinical and general population. CAT is a modern methodology that can be used to develop instruments that measure both efficiently and reliably as only the most appropriate questions are administered, and assessment terminates as soon as sufficient reliability is achieved. For the PROMIS CAT instruments, this was demonstrated in the thesis: measuring depression and anxiety in Dutch persons was highly efficient and reliable. Moreover, the CAT instruments were shown to measure depression and anxiety sufficiently responsive and valid as well. This even includes longitudinal validity, which has barely been studied for other Dutch mental health instruments. Overall, it was concluded that the new instruments are an improvement over available instruments. Therefore, using the PROMIS CAT instruments in clinical practice may lead to more efficient and reliable measurement that supports professionals and patients in evaluating patients' treatment. Show less
Center-based child care settings are a common form of non-parental child care for many families worldwide. However, according to earlier studies, children can experience stress when they attend... Show moreCenter-based child care settings are a common form of non-parental child care for many families worldwide. However, according to earlier studies, children can experience stress when they attend child care. The aim of the current dissertation was to elucidate the correlates of physiological and behavioral stress (especially around transitions) for young children (aged 0 – 4 years, with a specific focus on infants) and their parents in the context of center-based child care, and to examine whether and how we can support families with the aim of reducing stress. We did this by conducting a meta-analysis, a large-scale correlational study, and a small-scale intervention study combining questionnaires, observations, and physiological measures. Results showed that a significant part of children and parents experienced stress during and beyond the transition to center-based child care, irrespective of the quality of child care, and that several child (age and number of hours at child care) and parental (sensitivity and separation anxiety) factors were correlated. We also identified some clues as to what type of support can be helpful to assist families within this context, with the ultimate goal of promoting well-being in both young children and their parents. Show less
Increasingly code and algorithms are techniques also applied in textual scholarship, giving rise to new interactions between software engineers and textual scholars. This book argues that much of... Show moreIncreasingly code and algorithms are techniques also applied in textual scholarship, giving rise to new interactions between software engineers and textual scholars. This book argues that much of that process and its effects on textual scholarship are still poorly understood and go unchecked by otherwise normal processes of quality control in scholarship such as peer review. The text provides case studies in which some of these interactions become more apparent, as well as the academic challenges and problems that they introduce. The book demonstrates that the space between code creation and conventional scholarship is one that offers many affordances to textual scholarship that until now remain unexplored. The author argues that it is an intellectual obligation of programmers and textual scholars to examine the properties of digital text and how its existence changes and challenges textual scholarship. Show less
This dissertation describes the findings of six studies on mental health problems in the family context, specifically focusing on the associations with the parent-child relationship, parenting... Show moreThis dissertation describes the findings of six studies on mental health problems in the family context, specifically focusing on the associations with the parent-child relationship, parenting behaviors and experiences of childhood maltreatment. The aim is to better understand the risk factors, development and transmission of common psychological problems in order to contribute to prevention and treatment strategies for common psychological problems such as anxiety and depression.Overall, the findings underline the importance of the family context in the development and levels of mental health problems. In addition to the impact of one's own negative parenting experiences, including lack of warmth and experiences of emotional or physical abuse, negative parenting experiences of one's siblings are also associated with elevated anxiety and depressive symptom levels.We also found that externalizing problems of fathers and children have a negative impact on the parent-child interactions. In addition, we found that children with behavioral problems during early adolescence experience harsher parental discipline, even three years later.In the current treatment guidelines for common mental disorders, most therapies focus on the individual. An (additional) systemic approach and considering past and present family relationships in therapy, can be of additional value. For example, supporting families with interventions to improve the parent-child relationship can be helpful in the short and long term. Moreover, (early) treatment of psychological and behavioral problems of the parent or child might be beneficial for all family members. Show less
This PhD research dealt with neurobiological and behavioral aspects of pain. Previous research has demonstrated that pain sensitivity can be worsened as a result of learned negative expectations, a... Show moreThis PhD research dealt with neurobiological and behavioral aspects of pain. Previous research has demonstrated that pain sensitivity can be worsened as a result of learned negative expectations, a phenomenon termed nocebo hyperalgesia –a counterpart to placebo analgesia. This PhD dissertation describes neuroimaging and biobehavioral experimental studies as well as a review and a meta-analysis concerned with such learned effects on pain. The research adds to a growing literature that has been challenging antiquated understandings of pain as a bottom-up process. We conducted a series of biobehavioral studies to further our understanding of how bottom-up pain signaling can be influenced by top-down processing. We examined the types of experiences, such as receiving negative information or experiencing a negative effect first-hand, that may lead to stronger nocebo effects. Behavioral paradigms were used to model real-life pain experiences, through validated methods, novel learning manipulations, as well as a close examination of emotional correlates such as fear. Concurrently, innovative neuroscientific methods –including pharmacological manipulations– were used to examine the biobehavioral underpinnings of learned nocebo responses. Our findings add to the growing knowledgebase from the field of nocebo hyperalgesia, demonstrating that learning by experience can decisively influence the processing and perception of noxious stimuli. Show less
Children with SCT have an increased vulnerability for adverse neurobehavioral outcomes and an increased risk for neurocognitive difficulties in the language and communication domain. This... Show moreChildren with SCT have an increased vulnerability for adverse neurobehavioral outcomes and an increased risk for neurocognitive difficulties in the language and communication domain. This vulnerability starts from a young age and may increase when children get older. Neurocognitive functions within the language and communication domain serve as early markers of at-risk pathways with unfavorable neurobehavioral outcomes. These findings come with important clinical implications for the SCT population andwill ideally fuel the implementation of early monitoring, and implementation and development of preventive support and intervention. Show less
This dissertation takes ambiguity as its main theoretical focal point. It illustrates how ambiguity is used strategically from many sides. Further it presents novel approaches to conceptualizing... Show moreThis dissertation takes ambiguity as its main theoretical focal point. It illustrates how ambiguity is used strategically from many sides. Further it presents novel approaches to conceptualizing ambiguous content and ambiguous relationships. In addition it is concerned with potentiality and temporality.The deliberate ambiguity of viral stories and the chaos surrounding them, elaborates on how to create an account while accounting for positioning in time as well as space. It elaborates on the way both ethnographer and informants simultaneously create accounts that are specific to their positions, and that these specificities must be considered as the ethnographer shifts between different modes of ordering while in the field, while analyzing, and while retrospectively accounting for past events. The dissertation takes a methodological stance towards embracing conflicts, discontinuity, and messy data as the source of understanding. Deliberately looking for temporalities, potentiality, and ambiguity encourages a focus on uncertainty, open ends, and multiple possible versions. Doing so is crucial when attending to matters that are both sudden, intensive, highly digitally mediated, and subject to massive attention.The dissertation provides methodological as well as practical concerns, valuable to researchers whose object of study is brief but intense, including the retrospective representation of it. Show less
Promoting healthy eating habits from infancy onwards is essential, in order to prevent children from developing unhealthy eating behavior and becoming overweight. Next to studying the role of the... Show morePromoting healthy eating habits from infancy onwards is essential, in order to prevent children from developing unhealthy eating behavior and becoming overweight. Next to studying the role of the type of food we should feed our children (What), more and more studies emphasize the importance of a positive and sensitive parent-child interaction during the meal (How). The aim of the present dissertation was to examine the relation between sensitive parental feeding behavior and health outcomes in infants and toddlers up to 24 months. Within the overarching Baby’s First Bites RCT study, 246 mother-infant pairs participated. Most important findings of the dissertation include that mothers showed less sensitive behavior during mealtimes with their toddler, than during a play session. Moreover, our video-feedback intervention VIPP-Feeding Infants was found to promote sensitive maternal feeding behavior, but only on short term. Non-results may be explained by our generally high-performing sample, as well as by the emerging picky eating phase that is likely to occur in many children during toddlerhood. Future studies should aim to test our intervention programs in families at risk, such as children with high levels of picky eating behavior or low levels of vegetable intake, or families in lower SEP neighborhoods. Show less
The current dissertation aims to assess the well-being of Emergency Department (ED) nurses and identify (combinations of) job factors related to this. Second, it aims to evaluate the overall... Show moreThe current dissertation aims to assess the well-being of Emergency Department (ED) nurses and identify (combinations of) job factors related to this. Second, it aims to evaluate the overall effectiveness and effective elements of an intervention implementation project conducted in multiple EDs in the Netherlands. Findings show a high prevalence of stress-related outcomes in ED nurses, but also high levels of work engagement and job satisfaction. Worktime demands and aggression/conflict situations have the strongest relationship with exhaustion, whilst work engagement is mostly related to developmental opportunities. Recovery during and outside of work can buffer the impact of patient-related stressful situations. According to a literature review, interventions can effectively prevent/reduce stress-related outcomes in nurses, with person-directed interventions reaching greater short-term effects. Little is known about their longevity and only a limited number of organization-directed studies exist. The current 2,5-year (mostly organization-directed) intervention project, led to improved working conditions but not (yet) to better well-being. Greater effects were found in hospitals with more fitting interventions and were employees felt more informed about and involved in the project. Psychosocial safety climate was positively related to communication, participation and the fit of actions to the risk factors, and as such provides a good starting point for a successful intervention project. Show less
What are the evolutionary roots of emotions? To answer this cardinal question, I study emotions in animals that are evolutionarily close to us: the great apes. In this dissertation, I investigated... Show moreWhat are the evolutionary roots of emotions? To answer this cardinal question, I study emotions in animals that are evolutionarily close to us: the great apes. In this dissertation, I investigated how bonobos, orangutans, and humans perceive emotions by studying three markers of emotion perception: attention, spontaneous mimicry, and implicit associations. Using touchscreen tasks and eye-tracking, I found that bonobos and humans share attentional mechanisms for perceiving their social surroundings. In both species, attention was immediately directed to emotional signals of unfamiliar others (in bonobos) or familiar others (in humans). Bonobos and humans also looked longer at certain emotionally-laden scenes than emotionally-neutral scenes. Subsequently, I studied orangutans: the only apes leading a semi-solitary existence. I found that orangutans show spontaneous mimicry in the form of contagious yawning and self-scratching, contradicting the idea that mimicry only occurs in highly social species. Finally, I created and validated a pictorial version of the implicit association test: a task that can potentially help us uncover whether apes have implicit associations with emotions. The results in this dissertation indicate a common evolutionary origin for attentional mechanisms and mimicry in great apes, including humans, and highlight the importance of considering species-specific characteristics that drive emotion perception. Show less
This dissertation examines the efforts and motives of conservation actors on Bonaire, Saba, and Sint Eustatius, and situates these actors within the larger context of the Caribbean Netherlands. The... Show moreThis dissertation examines the efforts and motives of conservation actors on Bonaire, Saba, and Sint Eustatius, and situates these actors within the larger context of the Caribbean Netherlands. The main research question addressed is: How are the efforts of conservation actors to protect the environment of the Caribbean Netherlands affected by the recent social and political changes and their (post) colonial context? To get at these issues, this dissertation combines insights and approaches from environmental psychology, anthropology, and Caribbean studies to investigate how and why residents of the Caribbean Netherlands engage in conservation actions. Situated in social history, cultural and environmental anthropology, public administration, and environmental science, this research aims to create a broader, less compartmentalized, picture and also addresses societal concerns. Because of its multidisciplinary and multi-method character, this dissertation produces information that will be useful in engaging more people in environmental conservation In the (Dutch) Caribbean. Show less
By using the lens of food security, it is possible to understand the transformation processes of the Orang Rimba hunter-gatherers in Central Jambi (Sumatra, Indonesia) in times of change. The... Show moreBy using the lens of food security, it is possible to understand the transformation processes of the Orang Rimba hunter-gatherers in Central Jambi (Sumatra, Indonesia) in times of change. The establishment of rubber and oil palm plantations in their home territory has become the major factor in the economic development of the province. This dissertation uses a multidisciplinary approach to study food security, employing methods from economics and anthropology. It analyzes the food security conditions using the combined techniques of daily food intake and ethnographic approaches. While the Orang Rimba are facing food insecurity conditions due to various pressures, it is of great importance to protect the remaining forest in which the Orang Rimba live. This is not only crucial for the Orang Rimba’s food security and livelihoods but also for protecting the biodiversity in the Bukit Duabelas National Park and its adjacent areas that the Orang Rimba call their home. Show less
Because aggressive behavior during early childhood has been related to negative developmental outcomes, a further understanding of the underlying mechanisms of aggression during the first years of... Show moreBecause aggressive behavior during early childhood has been related to negative developmental outcomes, a further understanding of the underlying mechanisms of aggression during the first years of life is essential. Although the factors prenatal risk, parenting behavior, temperament and cognitive functions have consistently been related to externalizing behavior during preschool and school age, research focusing on their interplay in relation to aggressive behavior earlier in life is scarce. The aim of the current dissertation was to gain more insight into these associations during infancy and toddlerhood. Our studies indicated that impairments in children’s early cognitive regulation abilities play a role in the development of aggressive behavior. It can also be concluded that both adverse pre- and postnatal environmental influences have an impact on child aggression: higher prenatal risk and adverse parenting behavior were directly or indirectly (via poor cognitive functioning) related to higher levels of aggression. In addition, it was found that poor cognitive skills increased the risk of aggression in case of high prenatal risk or a highly reactive temperament during early development. These results suggest that early intervention programs to prevent aggression should focus on prenatal risk, parenting behavior and cognitive development during the first years of life. Show less
This dissertation aimed to shed light on the study of attachment theory in areas other than western, educated, industrialized, rich, and democratic (WEIRD; Henrich et al., 2010) societies that... Show moreThis dissertation aimed to shed light on the study of attachment theory in areas other than western, educated, industrialized, rich, and democratic (WEIRD; Henrich et al., 2010) societies that dominate the literature. We aimed to describe the extent to which the attachment theory core hypotheses are supported by research in Latin America and specifically in a rural Peruvian Andean area. Show less
The overarching goal of this thesis was to examine the behavioral, computational, and neural mechanisms underlying social learning in adolescence. The first aim was to examine developmental... Show moreThe overarching goal of this thesis was to examine the behavioral, computational, and neural mechanisms underlying social learning in adolescence. The first aim was to examine developmental patterns across adolescence of two forms of social learning: (1) learning about other people, specifically, whether they are (un)cooperative and (un)trustworthy, and (2) learning for other people (prosocial learning) to know what actions may benefit or help others. I made use of multiple experimental paradigms based on well-known economic games and/or probabilistic reinforcement learning paradigms to assess these forms of social learning. Secondly, I aimed to examine underlying mechanisms and factors that account for age-related and individual differences in social learning. Applying computational modeling and functional neuroimaging as additional tools contributed to a better understanding of the underlying mechanisms and how these develop across adolescence. The findings in this thesis converge to early-to-mid adolescence as a key developmental period for developing well-adjusted social behaviors, and especially in the cooperative domain there are pronounced improvements. These studies make an important contribution to the literature on social development and learning, and may eventually contribute to interventions targeted at promoting well-adjusted behavior in typically developing adolescents, as well as youth with maladaptive social tendencies. Show less
