Inaction inertia occurs when one is less likely to take an attractive opportunity, after refusing an even more attractive opportunity. In their experiment, van Putten and colleagues (2007) tried to...Show moreInaction inertia occurs when one is less likely to take an attractive opportunity, after refusing an even more attractive opportunity. In their experiment, van Putten and colleagues (2007) tried to decouple the inaction inertia effect by using ambiguous information. Their results yielded that ambiguous information did in fact decouple. However, the authors came to these conclusions by using optional stopping and p-hacking. This influenced the reliability of the results, so we decided to replicate this study, for good research practices and because it can give us valuable insight into how decoupling works when given an attractive offer. We made use of the replication recipe of Brandt and colleagues (2014) to conduct the replication.Show less
Disgust, rooted in human evolutionary history, serves as a vital defense mechanism against pathogens, manifesting in varied behaviors. This paper explores the intricate relationship between disgust...Show moreDisgust, rooted in human evolutionary history, serves as a vital defense mechanism against pathogens, manifesting in varied behaviors. This paper explores the intricate relationship between disgust and visual attention, employing the eye-tracking method. Drawing insights from primate studies, habituation, and human facial expressions, the research aims to address three key questions: Does gaze aversion occur in humans when exposed to disgusting stimuli, extending avoidance behavior into the visual domain? Do individuals exhibit prolonged attention to facial area, indicating a social imperative to assess the risk of pathogen contamination? How does gaze aversion change with repeated exposure to disgust-inducing stimuli? The study employs three conditions, including scenes of feces ingestion in the test condition, to assess total looking time. Results reveal significant gaze aversion towards feces as compared to control conditions, supporting the hypothesis of avoidance behavior. Participants displayed prolonged attention to faces during non-disgusting conditions, challenging assumptions about social necessity for risk assessment. Repeated exposure across trials to disgust-inducing stimuli did not significantly alter gaze behavior, highlighting the nuanced nature of responses to aversive stimuli. Discussion of the findings and implications are also addressed.Show less
Het pyrrhonisme is een praktische filosofie die kan leiden tot gemoedsrust. Volgens de oorspronkelijke wijsgeer Pyrrho van Ellis zelf verloopt dit middels uitstel van oordeel omtrent non-evidente...Show moreHet pyrrhonisme is een praktische filosofie die kan leiden tot gemoedsrust. Volgens de oorspronkelijke wijsgeer Pyrrho van Ellis zelf verloopt dit middels uitstel van oordeel omtrent non-evidente zaken. In dit onderzoek is deze eeuwenoude leer onderzocht. De eerste hypothese om deze doctrine te onderzoeken was dat een pyrrhonistische denkwijze positief gecorreleert zou zijn aan gemoedsrust. Daarnaast is de mogelijke invloed van geloof op deze relatie bestudeert. Hiervoor was de verwachting dat de relatie tussen pyrrhonistisch denken en gemoedsrust minder sterk is voor gelovige mensen. Om dit te testen is een testbatterij opgesteld, bestaande uit de Non Evident Questionnaire, Generalized Anxiety Disorder-7 en Perceived Stress Scale. Aan de hand van de responses van 175 deelnemers, bleek de hoofdanalyse niet significant te zijn bij zowel de GAD-7 als de PSS. Uit de moderatie analyse bleek tevens een insignificant effect. Beide hypotheses kunnen dus worden verworpen. Mogelijke verklaringen hiervoor kunnen zijn dat de verkregen data relatief weinig gelovige mensen bevatte en relatief veel transgender mensen, waardoor conclusies voorzichtiger getrokken dienen te worden. Daarnaast waren de stellingen in de NE-Q voornamelijk gericht op hedendaagse onderwerpen, en is wellicht niet geschikt voor het meten van een dergelijk tijdloos construct.Show less
Background. Picky eating behavior and physical activity are strongly associated with health in children (Karklina et al., 2011). By investigating the associations between shyness, picky eating...Show moreBackground. Picky eating behavior and physical activity are strongly associated with health in children (Karklina et al., 2011). By investigating the associations between shyness, picky eating behavior and physical activity in children and parental stress we could potentially define better intervention programs to prevent health disorders such as cardiovascular disease, diabetes, osteoporosis, anaemia, heart problems and earlier death, by identifying if physical activity, shyness and parental stress are potential areas of treatment. Aims. To investigate (1) if parental stress predicts shyness in ten-year-old children; (2) the association between shyness and picky eating behavior; and (3) the association between shyness and physical activity in ten-year-old children. Methods. A total of 3610 parents of Dutch children (50.6% girls) participated in the study. The mean age of the children was 10.19 (SD=.501; ranging from 8 to 12) Multiple regression analyses were conducted. Results. Shyness was predicted by parental stress (F(4,3601)=44.693, p<.00), picky eating behavior (F(4, 3479) = 12,942, p < .001) and higher levels of shyness were associated with being a boy and older age. Picky eating behavior was predicted by shyness (F(4, 3479) = 60,957, p < .001). Higher levels of picky eating behaviour were associated with lower levels of shyness and having the male gender and the family situation. Higher levels of physical activity were associated with lower levels of shyness and having the male gender. Conclusion. More research must be done with more reliable assessment tools and more universally accepted definitions of the variables. Lower levels of shyness were associated with more picky eating behavior, which is reassuring but our effect sizes and internal consistencies were low. Parental stress and shyness were positively associated with each other. Shyness and physical activity were negatively associated with each other. Since a lack of physical activity has risks such as developing cardiovascular disease, it is important to identify parental stress and shyness in 10-year-olds and provide support and advice to the parents of these 10-year-olds to be able to avert more serious outcomes.Show less
This research aimed to investigate whether food choices can be affected by placebo suggestions and the role of body image satisfaction and Body Mass Index (BMI) in this placebo effect. This study...Show moreThis research aimed to investigate whether food choices can be affected by placebo suggestions and the role of body image satisfaction and Body Mass Index (BMI) in this placebo effect. This study involved 22 participants aged 18-35. In the placebo group, participants received suggestions that a vagus nerve stimulation will decrease their hunger, while the control group received no suggestions. The vagus nerve stimulation was a sham procedure and did not stimulate the nerve. Participants' BMI was calculated followed by measuring body image satisfaction by completing the Body Self Image Questionnaire (BSIQ). Hunger was measured at baseline and post-suggestions. Additionally, food choice was measured with a computer task, in which participants had to choose between healthy and unhealthy food items. The statistical analysis showed no significant differences between the placebo and control groups for food choice (p = 0.56), baseline hunger (p = 0.69), and hunger post suggestions (p = 0.96). Additionally, hunger did not predict healthy food choice (p = 0.89) and body image (p = 0.77) and BMI (p = 0.32) did not moderate the effect of the suggestions on food choice. These results indicate that short suggestions might not be enough to affect hunger and food choices. The lack of effect found might be due to a small sample size and future research should include larger samples and longitudinal research design. Understanding the role of expectations and placebo effects in hunger, can in the future help develop strategies to promote healthier eating.Show less
Onverwachtse voorvallen kunnen in het dagelijks leven hinder veroorzaken, tenzij er goed op wordt aangepast. Een verminderd aanpassingsvermogen zou dus risico’s met zich mee kunnen brengen. In de...Show moreOnverwachtse voorvallen kunnen in het dagelijks leven hinder veroorzaken, tenzij er goed op wordt aangepast. Een verminderd aanpassingsvermogen zou dus risico’s met zich mee kunnen brengen. In de literatuur zijn vooral onderzoeken te vinden die de invloed van stress op cognitief, maar niet op motorisch aanpassingsvermogen belichten. Om dit gat in de literatuur te vullen, is het van belang om onderzoek te doen naar de invloed van stressniveau op motorisch aanpassingsvermogen. In dit onderzoek deden 80 participanten een VR game en vulden de PSS-10 in om stress te meten. In de VR game moesten participanten objecten vangen en deze in een gat voor zich gooien door controllers te gebruiken. In bepaalde levels was er echter een temporele en/of spatiele asynchronie tussen de avatar en de participant. Het motorisch aanpassingsvermogen werd gemeten door te kijken hoe goed de participanten hierop corrigeerden. De hypothese luidt als volgt: ‘De aanwezigheid van stress is gerelateerd aan een verminderd motorisch aanpassingsvermogen.’ Door middel van een simpele lineaire regressie is aangetoond dat de hypothese verworpen moet worden: stressniveau is geen significante voorspeller van motorisch aanpassingsvermogen (p = .127). Dit onderzoek laat zien dat de VR game mogelijk ingezet kan worden in situaties waarin stress een rol speelt, bijvoorbeeld om af te leiden van stress. Verder toont dit onderzoek dat stress niet altijd een negatieve connotatie zou moeten hebben.Show less
In de huidige studie hebben we onderzoek gedaan naar de invloed van Intolerantie voor Onzekerheid (IU; nervositeit voor het onbekende) op processen zoals (1) zekerheid in het geven van een antwoord...Show moreIn de huidige studie hebben we onderzoek gedaan naar de invloed van Intolerantie voor Onzekerheid (IU; nervositeit voor het onbekende) op processen zoals (1) zekerheid in het geven van een antwoord en (2) reactietijd. Met kennis over mechanismen van IU kunnen we symptomen begrijpen en dagelijkse negatieve gevolgen verminderen. Gedurende het experiment kregen 54 gezonde participanten (37 vrouwen, 17 mannen) tussen de 18-40 jaar neutrale en negatieve afbeeldingen met bijhorende beschrijvingen te zien op twee verschillende dagen met 24 uur ertussen. Specifiek is gekeken naar dag twee, waarbij de participanten bij 75 neutrale en 75 negatieve afbeeldingen moesten aangeven of ze de afbeeldingen hadden gezien op de dag ervoor (oud) of niet (nieuw). Ze gaven aan hoe zeker ze waren over hun antwoord (betrouwbaarheidsbeoordeling; VAS 1-100; oud-nieuw). De reactietijd (ms) van deze respons werd voor beide condities gemeten. Daarna vulden participanten de Intolerance for Uncertainty Scale (IUS) in, bestaande uit 27 stellingen waarbij ze aangaven in welke mate de stelling hen typeert. De data zijn geanalyseerd middels niet-parametrische Friedmantoetsen, RMANCOVA en twee regressieanalyses met verschilscores. Daaruit kwamen de volgende bevindingen. Participanten met meer IU vertoonden minder spreiding in zekerheid van hun antwoord en waren gemiddeld langzamer in beide condities. Los van IU, vertoonden participanten meer spreiding in antwoordzekerheid en waren ze gemiddeld langzamer bij de negatieve dan bij de neutrale afbeeldingen. We concluderen dat IU effect heeft op de antwoordzekerheid en op de reactietijd. Of de getoonde afbeeldingen neutraal of negatief zijn blijkt hierbij niet van invloed.Show less
Objective: The period after successfully coming off treatment (SCOT) following a childhood cancer diagnosis is known to be a vulnerable time for parents in which increased levels of distress can...Show moreObjective: The period after successfully coming off treatment (SCOT) following a childhood cancer diagnosis is known to be a vulnerable time for parents in which increased levels of distress can play a significant role. It is important to know more about the distress experienced by parents during this period to determine whether an intervention should be used to help parents return to ‘normal life’. The aim of this study was therefore to gain better understanding of parental distress and factors related to their distress during the first year after their child has successfully completed treatment. Methods: A sample of 283 parents of children who had successfully completed cancer treatment in the previous year were included in this cross-sectional study. These parents, who were part of the SCOT group, were invited to complete the Distress Thermometer for Parents (DT-P) within one year after treatment completion. The DT-P consists of a thermometer score to measure experienced distress and problem domains (practical, social, emotional, physical, cognitive, and parenting). Parents in the SCOT group were compared with parents in the general population (NORM group) to see if their distress levels were higher. In addition, the association between distress and the problem domains and child- or parent-related factors (time since the end of treatment, cancer type, child’s age, parental disease, and perceived support) was examined. Results: Parents (73.9% mothers) in the SCOT group experienced higher levels of distress in the first year after SCOT compared to the general population (fathers SCOT: M=3.5, SD=2.6 vs. fathers NORM: M=2.8, SD=2.5; p=.032; mothers SCOT: M=4.1, SD=2.7 vs. mothers NORM: M=3.5, SD=2.7; p=.001). Emotional (p<.001), practical (p=.016), and physical (p=.005) problems were predictors of higher distress levels. Parents’ perceived support from their environment contributed also to their level of distress (p<.001). Conclusions: Parents of children who have successfully completed cancer treatment experience increased levels of distress in the first year after treatment compared to parents in the general population. There may be value in developing an intervention to ease this transition that specifically addresses their emotional well-being and highlights the importance of their social network during this vulnerable period.Show less
Abstract Introduction. Sickness Presenteeism (SP) describes the phenomenon of going to work despite being ill. As SP might be related to more burnout complaints and lower general health and is...Show moreAbstract Introduction. Sickness Presenteeism (SP) describes the phenomenon of going to work despite being ill. As SP might be related to more burnout complaints and lower general health and is associated with higher job demands and lower job resources, the influences of SP were investigated. The research contributed to previous research by targeting a general, diverse population and by exclusively focusing on health instead of motivational reasons for SP. Further, research that investigated the effects of SP as a moderator between working conditions and health factors was lacking. Thus, this study hypothesized, that higher job demands, and lower job resources increase burnout complaints and decrease general health and that this association is strengthened by SP. Methods. Altogether, 115 participants participated in this correlational study. Job resources and job demands were measured with the Demand-Control-Support questionnaire. A new SP variable was created for this research and tested for internal consistency. Burnout was measured with the Burnout-Assessment-Tool and general health with a one-item question. Two multiple regression analyses were conducted. The first analysis measured if higher job demands, and lower job resources were associated with (more) burnout complaints and how this association was moderated by SP. The second analysis measured the same association but with (lower) general health as an outcome variable. Results. SP did not moderate the relationship between job demands and burnout complaints (p=.20), job resources and burnout complaints (p=.70), job demands and general health (p=.49), and job resources and general health (p=.65). Consequently, all hypotheses were rejected. Job demands were directly related to more burnout complaints (p=.005). Discussion. This study found that high job demands were associated with higher burnout complaints in a general and diverse working population, highlighting the importance of reducing workloads. This study did not find significant SP interaction effects. Possible reasons could be sample size limitations and the statistical test choice. Network analyses might better measure a construct like SP, which includes many control factors and associations. According to this study, it seems that to increase general health and decrease burnout complaints, changing working conditions is more appropriate than addressing worker´s SP.Show less
Background: Individuals with psychotic disorders (PD) often experience cognitive challenges, particularly in executive functioning (EF), crucial for daily functioning. Sleep disruptions, notably...Show moreBackground: Individuals with psychotic disorders (PD) often experience cognitive challenges, particularly in executive functioning (EF), crucial for daily functioning. Sleep disruptions, notably insomnia, are prevalent in PD, worsening symptoms and affecting overall well-being and treatment outcomes. Moreover, individuals with PD frequently engage in cannabis use, which can further impact EF. Gender differences may also play a role in how cannabis affects EF, though findings are varied. This study aims to deepen our understanding of the interplay between insomnia, EF, and cannabis use in PD individuals, while considering gender influences. We hypothesize that higher insomnia rates correlate with poorer EF in PD, with cannabis mediating this relationship. Additionally, we expect gender disparities to influence how cannabis affects EF. This study sheds light on critical factors affecting cognitive function in PD, aiding in tailored intervention strategies. Method: Data were collected from a randomly selected sample of patients (N=262) undergoing treatment at a mental health care clinic in the South-western part of the Netherlands at time of inclusion. Participants, aged between 18 and 65 at inclusion, had a primary diagnosis of a psychotic disorder. The current study utilized data from the Lichamelijke Klachten Vragenlijst (LKV), the Behavior Rating Inventory of Executive Function for Adults (BRIEF-A), and the Measurements in Addictions for Triage and Evaluation (MATE). Results: Significant correlations indicated a moderate positive association between insomnia and EF problems. However, mediation analysis did not support cannabis use as a mediator between insomnia and EF. Gender differences were explored through residual variances analysis, suggesting potential unaccounted factors impacting variability. Model fit indices revealed areas for improvement in explaining variance, warranting further examination and potential adjustments to refine the overall model fit. Conclusion: Higher rates of insomnia were related to higher rates of EF problems. There is no evidence for a mediating effect of cannabis use in this relationship. Gender differences did not seem to play a significant role in the effect of cannabis on EF. Future research should incorporate performance-based tasks alongside self-report measures to improve measurement precision. Future treatments could potentially benefit from incorporating interventions that address insomnia, as this may lead to potential enhancements in executive functioning.Show less
Background: Childhood emotional maltreatment by a primary caregiver is a key predictor for PTSD symptoms, yet limited research explores connections with specific symptoms, especially in children....Show moreBackground: Childhood emotional maltreatment by a primary caregiver is a key predictor for PTSD symptoms, yet limited research explores connections with specific symptoms, especially in children. Literature reports gender differences on emotional maltreatment and the experience of PTSD, so it is worth investigating the existence of differences when looking at separate symptoms. Objective: This study aims to investigate the correlation between childhood emotional maltreatment and PTSD symptomatology and identify gender differences in children and adolescents. Method: A sample of 237 children (mean age 15.5) with PTSD symptoms from a Dutch mental health institution (2012-2015) underwent assessment using anonymous questionnaires. Network analysis examined partial correlations between emotional abuse, neglect, intrusions, avoidance, arousal, and negative mood. Results: The network analysis showed a high correlation between emotional abuse and most PTSD symptoms. However, emotional neglect only exhibited a strong association with emotional abuse. Gender differences in how emotional maltreatment and PTSD symptoms interacted were found. Girls reported higher PTSD symptoms and emotional maltreatment than boys. Conclusions: This study highlights the important role of childhood emotional maltreatment in the development of PTSD, among children and adolescents. These results emphasize the need for the customization of PTSD treatment based on the type of maltreatment and gender.Show less
There are many instruments available to measure parental sensitivity, however each has its own limitations. In search of a more efficient instrument, an adapted mini-MBQS is proposed, in which...Show moreThere are many instruments available to measure parental sensitivity, however each has its own limitations. In search of a more efficient instrument, an adapted mini-MBQS is proposed, in which parents sort the cards instead of professionals. In this study, parent’s accuracy to report about their own parental sensitivity with this adapted Q-sort was explored. Additionally, it has been explored whether sex of the parent and parental reflective functioning influence parent’s accuracy on the Q-sort. To answer these questions, two online home visits were conducted with twenty parent-child pairs. During the home visits parent and child played together. Afterwards, the parent sorted the Q-sort about how sensitive s/he thought s/he was to the child during the play task. The play task was recorded and later coded on parental sensitivity with the Ainsworth Maternal Sensitivity Scale by a professional. Furthermore, parents filled in a questionnaire between the two online home visits, which contained questions about the family’s background and parental reflective functioning. The results from parent-reported and observed sensitivity were compared, which showed a positive, but weak and non-significant correlation of .22, suggesting a mismatch between parent’s own judgement and that of a professional about the level of sensitive parenting. Next, two ANCOVAs were conducted and showed that sex of the parent (F (1,16) < .01; p = .95) and parental reflective functioning (F (1,16) = .06; p = .81) did not moderate the relationship between observed and parent-reported sensitivity. From these results, it can be concluded that parents are not accurate when reporting about their parental sensitivity with the Q-sort. In addition, the results showed that gender or self-reported level of parental reflective functioning do not influence this accuracy. Therefore, it is not recommended to use the current form of the adapted MBQS as an instrument to measure parental sensitivity.Show less
Parental sensitivity refers to the degree to which parents are aware of their child’s signals, and respond quickly and appropriately to those signals. This parental sensitivity plays an important...Show moreParental sensitivity refers to the degree to which parents are aware of their child’s signals, and respond quickly and appropriately to those signals. This parental sensitivity plays an important role in raising children. In this study, correlations between sensitive parenting, parental self-confidence in raising children, child temperament and child age were investigated. Twenty-one parents participated in an online meeting in which they played for eight minutes with their 3-5 year-old child. Two to four weeks after the first meeting, parents participated in a second online meeting in which they also played for eight minutes with their child. After the first meeting, parents filled in a questionnaire about their sensitivity, their self-confidence in raising their child, and child temperament. The following questions were investigated: ‘are parental self-confidence in raising children and parental sensitivity correlated?’; ‘is child temperament or parental self-confidence in raising children more closely correlated with parental sensitivity?’; and ‘to what extent does child temperament affect the correlation between child age and parental sensitivity?’. Using a correlation, multiple regression and moderator analysis, no correlations were found. Parental sensitivity was not correlated to parental self-confidence in raising children, child temperament or child age. These results indicate that interventions for increasing parental sensitivity must not focus on parental self-confidence or child temperament, but for example on how parents can practice sensitive parenting or how parents can react sensitively when their child is angry.Show less
Teenagers spend a lot of time online, which may cause worry to their parents as the internet can bring a lot of risks. To protect their children from these dangers, parents might implement rules or...Show moreTeenagers spend a lot of time online, which may cause worry to their parents as the internet can bring a lot of risks. To protect their children from these dangers, parents might implement rules or restrictions of phone use for their teenagers. These restrictions can keep them away from risky apps or reduce their time online. However, it is unknown if these restrictions result in less encounters of dangerous situations. This study focusses specifically on exposure to sexual content online. The aim of this study is to find out if there is a relation between phone restrictions someone might have had while growing up and exposure to sexual online content. Participants were asked to anonymously fill in an online questionnaire about their online experiences and possible phone restrictions. Using this data, an ordinal regression analysis was used to examine the relation between the presence of phone restrictions and the exposure to sexual content online. In addition, this study looks if there is a relation between what type of restriction someone might have had and the type of online exposure to sexual content: unwanted exposure and wanted exposure for the participant. The results of this study have found no significant effect, implying there is no relationship between the presence of phone restrictions and exposure to online sexual content. Furthermore, no evidence was found to indicate a relationship between the type of restrictions and wanted exposure to online sexual content. Only a significant, positive relationship was found between a limited screen time and wanted exposure to online sexual content.Show less