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Dive into the research topics where I.L. Bongers is active.

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Featured researches published by I.L. Bongers.


The Journal of Clinical Psychiatry | 2014

Neurocognitive effects of neurofeedback in adolescents with ADHD: a randomized controlled trial.

Marleen Bink; Chijs van Nieuwenhuizen; Arne Popma; I.L. Bongers; Geert J. M. van Boxtel

OBJECTIVE Neurofeedback aims to reduce symptoms of attention-deficit/hyperactivity disorder (ADHD), mainly attention problems. However, the additional influence of neurofeedback over treatment as usual (TAU) on neurocognitive functioning for adolescents with ADHD remains unclear. METHOD By using a multicenter parallel randomized controlled trial (RCT) design, male adolescents with a DSM-IV-TR diagnosis of ADHD (mean age = 16.1 years; range, 12-24) were randomized to receive either a combination of TAU and neurofeedback (n = 45) or TAU (n = 26). Randomization was computer generated and stratified by age group (ages 12 through 15, 16 through 20, and 21 through 24 years). The neurofeedback intervention consisted of approximately 37 sessions over a period of 25 weeks of theta/sensorimotor rhythm training on the vertex (Cz). Primary neurocognitive outcomes included performance parameters derived from the D2 Test of Attention, the Digit Span backward, the Stroop Color-Word Test and the Tower of London, all assessed preintervention and postintervention. Data were collected between December 2009 and July 2012. RESULTS At postintervention, outcomes of attention and/or motor speed were improved, with faster processing times for both intervention conditions and with medium to large effect sizes (range, ηp2 = .08-.54; P values < .023). In both groups, no improvements for higher executive functions were observed. Results might partly resemble practice effects. CONCLUSIONS Although neurocognitive outcomes improved in all adolescents receiving treatment for ADHD, no additional value for neurofeedback over TAU was observed. Hence, this study does not provide evidence for using theta/sensorimotor rhythm neurofeedback to enhance neurocognitive performance as additional intervention to TAU for adolescents with ADHD symptoms. TRIAL REGISTRATION Trialregister.nl identifier: 1759.


International Journal of Social Psychiatry | 2012

Profiles of individually defined recovery of people with major psychiatric problems

J. A. W. M. van Gestel-Timmermans; Evelien P. M. Brouwers; I.L. Bongers; M.A.L.M. van Assen; Ch. van Nieuwenhuizen

Background: Research on factors associated with individually defined recovery is limited. Several phases of recovery have been described in the literature. Individuals in these distinct phases have different characteristics and problems. Aims: To identify classes of people with major psychiatric problems who have comparable profiles of individually defined recovery, to relate these classes to the phases of recovery as described by Spaniol, Wewiorsky, Gagne, and Anthony (2002), and to associate the classes to demographic and psychiatric characteristics, and health-related variables. Methods: Data of 333 participants with major psychiatric problems were used. A latent class analysis was conducted on the mean scores of four proxy measures of recovery. Results: Three well-defined classes were found that differed on the recovery measures. The classes differed significantly on variables corresponding to Spaniol’s phases of recovery (Spaniol et al., 2002) and on health care utilization, health care needs and anxiety disorder, but not on demographic variables. Conclusions: It is possible to identify classes of people with major psychiatric problems who have comparable profiles of individually defined recovery that seem to correspond to phases of recovery. More knowledge of the characteristics of people in different phases of recovery will contribute to more fine-tuned and recovery-oriented health care.


British Journal of Psychiatry Open | 2016

1-year follow-up of neurofeedback treatment in adolescents with attention-deficit hyperactivity disorder : Randomised controlled trial

Marleen Bink; I.L. Bongers; Arne Popma; Tieme W. P. Janssen; Chijs van Nieuwenhuizen

Background Estimates of the effectiveness of neurofeedback as a treatment for attention-deficit hyperactivity disorder (ADHD) are mixed. Aims To investigate the long-term additional effects of neurofeedback (NFB) compared with treatment as usual (TAU) for adolescents with ADHD. Method Using a multicentre parallel-randomised controlled trial design, 60 adolescents with a DSM-IV-TR diagnosis of ADHD receiving NFB+TAU (n=41) or TAU (n=19) were followed up. Neurofeedback treatment consisted of approximately 37 sessions of theta/sensorimotor rhythm (SMR)-training on the vertex (Cz). Outcome measures included behavioural self-reports and neurocognitive measures. Allocation to the conditions was unmasked. Results At 1-year follow-up, inattention as reported by adolescents was decreased (range ηp2=0.23–0.36, P<0.01) and performance on neurocognitive tasks was faster (range ηp2=0.20–0.67, P<0.005) irrespective of treatment group. Conclusions Overall, NFB+TAU was as effective as TAU. Given the absence of robust additional effects of neurofeedback in the current study, results do not support the use of theta/SMR neurofeedback as a treatment for adolescents with ADHD and comorbid disorders in clinical practice. Declaration of interest None. Copyright and usage


Law and Human Behavior | 2016

Identifying gender specific risk/need areas for male and female juvenile offenders: Factor analyses with the Structured Assessment of Violence Risk in Youth (SAVRY).

Ed L. B. Hilterman; I.L. Bongers; Tonia L. Nicholls; Chijs van Nieuwenhuizen

By constructing risk assessment tools in which the individual items are organized in the same way for male and female juvenile offenders it is assumed that these items and subscales have similar relevance across males and females. The identification of criminogenic needs that vary in relevance for 1 of the genders, could contribute to more meaningful risk assessments, especially for female juvenile offenders. In this study, exploratory factor analyses (EFA) on a construction sample of male (n = 3,130) and female (n = 466) juvenile offenders were used to aggregate the 30 items of the Structured Assessment of Violence Risk in Youth (SAVRY) into empirically based risk/need factors and explore differences between genders. The factor models were cross-validated through confirmatory factor analyses (CFA) on a validation sample of male (n = 2,076) and female (n = 357) juvenile offenders. In both the construction sample and the validation sample, 5 factors were identified: (a) Antisocial behavior; (b) Family functioning; (c) Personality traits; (d) Social support; and (e) Treatability. The male and female models were significantly different and the internal consistency of the factors was good, both in the construction sample and the validation sample. Clustering risk/need items for male and female juvenile offenders into meaningful factors may guide clinicians in the identification of gender-specific treatment interventions.


International Journal of Offender Therapy and Comparative Criminology | 2016

Longitudinal Relation Between General Well-Being and Self-Esteem Testing Differences for Adolescents Admitted to Secure Residential Care and After Discharge

C.S. Barendregt; André van der Laan; I.L. Bongers; Chijs van Nieuwenhuizen

This study investigated the longitudinal relation between general well-being and self-esteem of male adolescents with severe psychiatric disorders. Moreover, the transition out of secure residential care was studied. Adolescents (N = 172) were assessed three times with 6 months between each assessment. The sample comprised adolescents who were admitted throughout the entire study (n = 116) and who had been discharged at 6/12 months follow-up (n = 56). General well-being and self-esteem were stable concepts over time. The relation between general well-being and self-esteem differed for both groups. Among the admitted group general well-being positively predicted self-esteem and self-esteem negatively predicted general well-being from Time 2 to Time 3. Among the discharged adolescents, self-esteem at Time 1 positively predicted general well-being at Time 2 and general well-being at Time 2 positively predicted self-esteem at Time 3. Changing social contexts, as well as problems experienced during the transition out of secure care, might affect this relationship.


Journal of Forensic Psychiatry & Psychology | 2015

Stability and change in subjective quality of life of adolescents in secure residential care

C. S. Barendregt; A.M. van der Laan; I.L. Bongers; Ch. van Nieuwenhuizen

Subjective quality of life (QoL) is an outcome measure often used in the field of psychiatry. While upcoming strength-based rehabilitation theories place strong emphasis on subjective QoL, it has hardly ever been investigated in adolescents with severe psychiatric problems who are admitted to secure residential care. Therefore, the aim of this study was to investigate the stability and change of subjective QoL of adolescents with severe psychiatric problems. Additionally, the effect of discharge and re-entering society on subjective QoL was studied. In a four-wave longitudinal study, the subjective QoL of 172 male adolescents with severe psychiatric problems was examined. Five subjective QoL domains remained stable over time, while five other domains changed. A decrease in satisfaction with family relations and social participation was observed for discharged adolescents. These results warrant for continuing guidance of adolescents in order for them to positively adapt to a new life outside secure residential care.


Child and Adolescent Psychiatry and Mental Health | 2018

Quality of life, delinquency and psychosocial functioning of adolescents in secure residential care: testing two assumptions of the Good Lives Model

C. S. Barendregt; A.M. van der Laan; I.L. Bongers; Ch. van Nieuwenhuizen

BackgroundIn this study, two assumptions derived from the Good Lives Model were examined: whether subjective Quality of Life is related to delinquent behaviour and psychosocial problems, and whether adolescents with adequate coping skills are less likely to commit delinquent behaviour or show psychosocial problems.MethodTo this end, data of 95 adolescents with severe psychiatric problems who participated in a four-wave longitudinal study were examined. Subjective Quality of Life was assessed with the ten domains of the Lancashire Quality of Life Profile and coping skills with the Utrecht Coping List for Adolescents.ResultsResults showed that adolescents who reported a lower Quality of Life on the health domain had more psychosocial problems at follow-up. No relationship was found between Quality of Life and delinquent behaviour. In addition, active and passive coping were associated with delinquent behaviour and psychosocial functioning at follow-up.ConclusionsBased on the results of this longitudinal study, the strongest support was found for the second assumption derived from the Good Lives Model. Adolescents with adequate coping skills are less likely to commit delinquent behaviour and have fewer psychosocial problems at follow-up. The current study provides support for the use of strength-based elements in the treatment programmes for adolescents in secure residential care.


Quality of Life Research | 2018

Subjectively different but objectively the same? Three profiles of QoL in people with severe mental health problems

David C. Buitenweg; I.L. Bongers; Dike van de Mheen; Hans van Oers; Chijs van Nieuwenhuizen

PurposeQuality of life (QoL) is a broad outcome that is often used to assess the impact of treatment and care interventions in mental health services. QoL, however, is known to be influenced by individual values and preferences. To investigate this heterogeneity on the individual level, this study aimed to distinguish classes with distinct QoL profiles in a broad group of people with severe mental health problems and to identify the QoL domains that are most strongly related to the classes.MethodsQoL data of seven studies that used the Lancashire quality of life profile (LQoLP) were used in a latent class analysis. Sociodemographic variables, health-related variables, and measures of well-being were used to characterise the classes. Additionally, univariate entropy scores were used to assess the strength of the association between the ten LQoLP domains and the latent classes.ResultsTwo of the three indices of fit pointed towards a three-class model. The three classes differed significantly on all of the LQoLP domains, on well-being, and on ‘being in an intimate relationship’. No differences were found for the majority of the health-related and sociodemographic variables. The LQoLP domains ‘family relations’, ‘positive self-esteem’, and ‘negative self-esteem’ were most strongly related to the latent classes.ConclusionsThe identification of three distinct classes of QoL scores re-emphasises the heterogenic nature of QoL. The lack of differences in sociodemographic or health-related characteristics between the three classes suggests that QoL is primarily determined by subjective, personal evaluations, rather than by objective characteristics and circumstances.


International Journal of Methods in Psychiatric Research | 2018

Worth a thousand words? Visual concept mapping of the quality of life of people with severe mental health problems

David C. Buitenweg; I.L. Bongers; Dike van de Mheen; Hans van Oers; Chijs van Nieuwenhuizen

Conventional approaches to quality of life (QoL) measurement rely heavily on verbal, language‐based communication. They require respondents to have significant cognitive and verbal ability, making them potentially unsuitable for people with severe mental health problems. To facilitate an alternative approach to QoL assessment, the current study aims to develop an alternative, visual representation of QoL for people with severe mental health problems.


Child and Adolescent Psychiatry and Mental Health | 2018

Supervision trajectories of male juvenile offenders: growth mixture modeling on SAVRY risk assessments

Ed L. B. Hilterman; I.L. Bongers; Tonia L. Nicholls; Chijs van Nieuwenhuizen

BackgroundStructured risk/need assessment tools are increasingly used to orientate risk reduction strategies with juvenile offenders. The assumption is that the risk/need items on these tools are sufficiently sensitive to measure changes in the individual, family and/or contextual characteristics of juvenile offenders. However, there is very little research demonstrating the capacity of these tools to measure changes in juvenile offenders. Congruent with the developmental and life-course criminology theories (DLC) the objective of this study is to explore the existence of heterogeneous trajectories of juvenile offenders across the juvenile justice system as measured through five empirical risk/need areas based on the Structured Assessment of Violence Risk in Youth (SAVRY), one of the most widely applied risk assessment tools for juveniles.MethodsThis longitudinal study included 5205 male juvenile offenders who transitioned through the Catalan juvenile justice system between 2006 and 2014. During intervention they received at least two, and a maximum of seven, consecutive SAVRY risk/need assessments over an 18-month period. The heterogeneity of latent class trajectories was explored through growth mixture modeling (GMM). The trajectory class membership was linked to covariates through multinomial logistic regression analyses.ResultsThrough GMM three to four heterogeneous trajectories, with high quality of separation, were identified in each of the risk/need areas. The trajectories with low risk/needs (45–77% of the sample) remained low and presented a very limited increase in risk/needs during the 18-month period. The high risk/need trajectories (20–37% of the sample) showed a limited decrease or no change. Between 5 and 13% of the sample had large reductions in their risk/needs levels, and approximately 5% showed a large increase in risk/needs.ConclusionsIn line with the DLC theories this study shows that trajectories on criminogenic risk/needs can be heterogeneous and indicate distinct rates of change over time. The results of this study also may suggest a limited sensibility to measure change over time of SAVRY’s risk and protective items. Suggestions to improve the sensitivity of measuring change over time, such as shorter time frames or future-oriented time frames for the scoring of the items, are offered.

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Arne Popma

VU University Medical Center

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Marleen Bink

VU University Amsterdam

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