Publications by authors named "Tollenaar M"

Background: Child and adolescent psychiatry in the Netherlands is part of the broader field of youth care. International treaties, the Youth Act, child protection measures and various legislation for compulsory care provide the framework within which youth care can be provided.

Aim: Clarify the laws and regulations of youth care for young people and describe possible changes in the future.

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  • - The study investigates the development of the early-morning peak in cortisol levels in infants, which is crucial for determining effective hydrocortisone therapy for adrenal insufficiency.
  • - Researchers conducted a systematic review and meta-analysis, analyzing data from 54 publications and 1,904 infants to study how salivary cortisol varies with age and time of day.
  • - Findings reveal that the morning/evening cortisol ratio increases significantly as infants grow, establishing a consistent 24-hour rhythm by 6-9 months.
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  • - The study investigated how adolescents with clinical depression and their parents perceive the causes of the depression, focusing on the overlaps and differences in their beliefs.
  • - 34 adolescents with depression and their parents were interviewed separately to gather insights about personal, social, and school-related factors influencing the adolescents' feelings.
  • - Results showed that parents generally have a good grasp of their child's beliefs but often underestimate their insights, particularly regarding the cumulative effects of stress; understanding these differences could be beneficial in therapy.
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Harsh parenting has been shown to increase the risk of physical and mental health problems in later life. To improve our understanding of these risks and how they can be mitigated, we investigated associations of harsh parenting with a clinically relevant biomarker, epigenetic age deviation (EAD), using data from a randomized-control trial of the Incredible Years (IY) parenting program. This study included 281 children aged 4-8 years who were screened for heightened externalizing behavior and whose parents were randomly allocated to either IY or care-as-usual (CAU).

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This study investigated associations of the Incredible Years (IY) parenting program with children's DNA methylation. Participants were 289 Dutch children aged 3-9 years (75% European ancestry, 48% female) with above-average conduct problems. Saliva was collected 2.

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Background: Understanding how child maltreatment is passed down from one generation to the next is crucial for the development of intervention and prevention strategies that may break the cycle of child maltreatment. Changes in emotion recognition due to childhood maltreatment have repeatedly been found, and may underly the intergenerational transmission of child maltreatment.

Objective: In this study we, therefore, examined whether the ability to recognize emotions plays a role in the intergenerational transmission of child abuse and neglect.

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Eye contact improves mood, facilitates connectedness, and is assumed to strengthen the parent-child bond. Adolescent depression is linked to difficulties in social interactions, the parent-child bond included. Our goal was to elucidate adolescents' affective and neural responses to prolonged eye contact with one's parent in nondepressed adolescents (HC) and how these responses are affected in depressed adolescents.

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Previous studies have shown that parents with a history of childhood abuse are at increased risk of perpetrating child abuse. To break the cycle of childhood abuse we need to better understand the mechanisms that play a role. In a cross-sectional extended family design including three generations ( = 250, 59% female), we examined the possible mediating role of parental psychopathology and emotion regulation in the association between a history of childhood abuse and perpetrating child abuse.

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One of the most prevalent nonverbal, social phenomena known to automatically elicit self- and other-referential processes is eye contact. By its negative effects on the perception of social safety and views about the self and others, childhood emotional maltreatment (CEM) may fundamentally affect these processes. To investigate whether the socioaffective consequences of CEM may become visible in response to (prolonged) eye gaze, 79 adult participants (mean [M] = 49.

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Background: Adolescents with depression exhibit negative biases in autobiographical memory with detrimental consequences for their self-concept and well-being. Investigating how adolescents relive positive autobiographical memories and activate the underlying neural networks could reveal mechanisms that drive such biases. This study investigated neural networks when reliving positive and neutral memories, and how neural activity is modulated by valence and vividness in adolescents with and without depression.

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Background: Parent-adolescent interactions, particularly parental criticism and praise, have previously been identified as factors relevant to self-concept development and, when negative, to adolescent depression. Yet, whether adolescents with depression show aberrant emotional and neural to parental criticism and praise is understudied.

Methods: Adolescents with depression ( = 20) and healthy controls ( = 59) received feedback supposedly provided by their mother or father in the form of negative ('untrustworthy'), neutral ('chaotic'), and positive ('respectful') personality evaluations while in an MRI-scanner.

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Introduction: This randomized controlled trial examined the effectiveness of physical activity added to an intensive trauma-focused treatment (TFT) for post-traumatic stress disorder (PTSD) in comparison to adding non-physical control activities.

Methods: A total of 119 patients with PTSD were randomly assigned to a physical activity condition (PA; = 59) or a non-physical activity control condition (nPA; = 60). The 8-day intensive TFT programme consisted of daily prolonged exposure, EMDR therapy, and psychoeducation, which was complemented with physical activities versus controlled mixtures of guided (creative) tasks.

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The early caregiving environment can have lasting effects on child mental health. Animal models suggest that glucocorticoid receptor gene () DNA methylation plays a mediating role in linking more responsive caregiving to improved behavioral outcomes by its impact on the stress regulatory system. In this longitudinal study, we examined whether children's methylation levels mediate an effect of maternal sensitivity in infancy on levels of child internalizing and externalizing behavior in a community sample.

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One of the proposed mechanisms linking childhood stressor exposure to negative mental and physical health outcomes in later life is cellular aging. In this prospective, longitudinal, and pre-registered study, we examined the association between a cumulative pattern of childhood risk exposure from age 6 to age 10 (i.e.

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Evolutionary-developmental psychologists have posited that individuals who grow up in stressful rearing circumstances follow faster life history strategies, thereby increasing their chances of reproduction. This preregistered study tested this stress-acceleration hypothesis in a low-risk longitudinal sample of 193 Dutch mother-child dyads, by investigating whether infant-mother attachment insecurity at 12 months of age predicted earlier pubertal onset and more callous-unemotional traits, aggression and risk-taking about a decade later. Also evaluated were the possible mediating roles of two biomarkers of accelerated aging (i.

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Background: Psychological stress has repeatedly been found to be associated with pro-inflammatory markers in blood, and neuro-inflammation may play a role in the development of psychopathology after early life stress. Salivary immune testing is a novel method to non-invasively assess immune functioning. We examined a large range of salivary immune markers in relation to self-reported childhood maltreatment and psychopathology in an adult sample.

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Eye contact is crucial for the formation and maintenance of social relationships, and plays a key role in facilitating a strong parent-child bond. However, the precise neural and affective mechanisms through which eye contact impacts on parent-child relationships remain elusive. We introduce a task to assess parents' neural and affective responses to prolonged direct and averted gaze coming from their own child, and an unfamiliar child and adult.

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The eye region is thought to play an important role in the ability to accurately infer others' feelings, or empathic accuracy (EA), which is an important skill for social interaction. However, most past studies used static pictures, including only visual information, and knowledge about the contribution of the eye region to EA when visual information is presented together with verbal content is lacking. We therefore examined whether eye gazing contributes to EA during videos of emotional autobiographical stories including both visual and verbal content.

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Stress initiates a cascade of (neuro)biological, physiological, and behavioral changes, allowing us to respond to a challenging environment. The human response to acute stress can be studied in detail in controlled settings, usually in a laboratory environment. To this end, many studies employ acute stress paradigms to probe stress-related outcomes in healthy and patient populations.

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Social feedback from parents has a profound impact on the development of a child's self-concept. Yet, little is known about adolescents' affective and neural responses to parental social feedback, such as criticism or praise. Adolescents (n = 63) received standardized social feedback supposedly provided by their mother or father in the form of appraisals about their personality (e.

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Background: New intensive trauma-focused treatment (TFT) programmes that incorporate physical activity have been developed for people with post-traumatic stress disorder (PTSD). However, the unique contribution of physical activity within these intensive TFT programmes has never been investigated in a controlled manner.

Objectives: This randomized controlled trial will investigate the effectiveness of physical activity added to an intensive TFT programme.

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Article Synopsis
  • - The study investigates how prenatal maternal anxiety impacts the PedBE epigenetic clock, a tool that measures biological changes due to the prenatal environment, using data from two longitudinal cohorts in the Netherlands and Singapore.
  • - Results show that prenatal maternal anxiety leads to significant epigenetic age acceleration in male children, with effects that are not seen in females and that are independent of other risk factors like socioeconomic status and genetics.
  • - The findings emphasize the need for mental health support for pregnant individuals, as early interventions could have lasting benefits for both mothers and their children, particularly highlighting the increased sensitivity of males to these prenatal influences.
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  • fMRI is a technique used to study how our brains work over the past 30 years, but researchers haven’t looked closely at how participants in these studies might be different from those in other types of studies.
  • The research found that people who take part in fMRI studies tend to have lower anxiety levels than those who participate in behavior-only studies.
  • It’s important for researchers to check anxiety levels when recruiting participants and to use better screening methods to avoid this problem.
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In the current study, the associations between multiple types of child maltreatment (CM), parent-offspring interactions, and family cohesion were examined in an extended family study. A total of 366 parent-offspring pairs from 137 nuclear families participated. Parents ( = 52.

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