Gert-Jan De Bruijn
Biographic Data
| ID | 1562994 |
|---|---|
| NAME | Gert-Jan De Bruijn |
| GIVEN NAMES | Gert-Jan |
| FAMILY NAME | De Bruijn |
| SIGNATURE | DE BRUIJN G |
| AFFILIATIONS | Department of Communication Studies, University of Antwerp, Antwerp, Belgium. Amsterdam School of Communication Research, University of Amsterdam, Amsterdam 15791 1001 NG, Netherlands |
| VERIFIED | No |
| TOTAL WORKS | 15 |
| TOTAL CITATIONS | 82 |
| WORKS AS AUTHOR | 15 |
| WORKS AS EDITOR | 0 |
| FIRST PUBLICATION YEAR | 2006 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 3 |
Differences in usage and engagement rates of an online physical activity intervention among subgroups of adults aged 50 years and older in a practical setting
Reach, use and effects of digital health interventions (DHIs) vary greatly among subpopulations, with lower usage rates and effects among groups with low socioeconomic status (SES) and chronic diseases. However, reaching these groups and improving their DHI use is crucial since they could benefit the most from improving their health and lifestyle. The aim of this study was to provide insight into usage and engagement rates of an online physical a…
How Dutch orthopedic healthcare professionals perceive antibiotic resistance
Healthcare professionals must act to curb antibiotic resistance (ABR), one of today's greatest threats to global health. This study applied the mental model approach to understanding perceptions of ABR among different Dutch orthopedic healthcare professionals. The expert model (step 1) was based on evidence-based ABR information and expert interviews ( n = 3). This model prompted the step 2 questionnaire to inquire about perceived causes, consequ…
Buffering against exposure to mental health misinformation in online communities on Facebook
Results provide evidence that the more members reported being exposed to mental health misinformation, the more they tended to agree with it, however this was only visible when participants had lower depression literacy and were participating in peer-led OCMHs. Results of this study suggest that both internal factors (i.e., high depression literacy) and external factors (the type of online community individuals were participating in) can buffer t…
Dual Process Models and Information Engagement
This study uses a three-wave prospective longitudinal survey (at 6-month intervals) to test effects of information seeking and scanning on attitudes toward marijuana among college students in Israel (N = 700). We integrate constructs from the elaboration likelihood model to contrast processes of attitude change among individuals who vary in moderators of information processing depth (motivation and ability). In addition, we test whether trust in …
Intervening through Conversations
A promising avenue for health behavior change is to influence conversational valence, that is, the extent to which people talk negatively or positively about health behaviors. However, no research to date has experimentally manipulated conversational valence, thereby inhibiting conclusions about causal inferences. This study aims to fill this gap by investigating the influence of conversational valence instructions on perceived conversational val…
Improving cardiometabolic health through nudging dietary behaviours and physical activity in low SES adults
The real-life trial has been registered on 30 May 2018, NTR7302
Effects of preparatory and action planning instructions on situation-specific and general fruit and snack intake
Towards parsimony in habit measurement
BACKGROUND: The twelve-item Self-Report Habit Index (SRHI) is the most popular measure of energy-balance related habits. This measure characterises habit by automatic activation, behavioural frequency, and relevance to self-identity. Previous empirical research suggests that the SRHI may be abbreviated with no losses in reliability or predictive utility. Drawing on recent theorising suggesting that automaticity is the 'active ingredient' of habit…
Using implicit associations towards fruit consumption to understand fruit consumption behaviour and habit strength relationships
An implicit association test (IAT) was used to investigate how habit strength, implicit attitudes and fruit consumption interrelate. Fifty-two participants completed a computerized IAT and provided measures of fruit consumption and related habit strength. Implicit attitudes moderated the habit strength-fruit consumption relationship; stronger relationships were observed when implicit attitudes were more positive. Amongst those with strong fruit h…
A Systematic Review and Meta-analysis of Applications of the Self-Report Habit Index to Nutrition and Physical Activity Behaviours
The importance of habits in eating behaviour. An overview and recommendations for future research
Automatic and Motivational Correlates of Physical Activity
The purpose of this study was to examine the predictive capability of a habit construct, controlling for intention and perceived behavioral control, with moderate and strenuous intensity physical activity. This approach was expanded through an examination of whether conscious deliberation in the initiation of physical activity would attenuate these findings and a test of the intention-habit interaction. Participants were 337 undergraduate student…
Understanding college students’ fruit consumption. Integrating habit strength in the theory of planned behaviour
Saturated fat consumption and the Theory of Planned Behaviour
Environmental influences on energy balance-related behaviors
The importance of habits in eating behaviour. An overview and recommendations for future research
Understanding college students’ fruit consumption. Integrating habit strength in the theory of planned behaviour
Saturated fat consumption and the Theory of Planned Behaviour
Using implicit associations towards fruit consumption to understand fruit consumption behaviour and habit strength relationships
An implicit association test (IAT) was used to investigate how habit strength, implicit attitudes and fruit consumption interrelate. Fifty-two participants completed a computerized IAT and provided measures of fruit consumption and related habit strength. Implicit attitudes moderated the habit strength-fruit consumption relationship; stronger relationships were observed when implicit attitudes were more positive. Amongst those with strong fruit h…
Environmental influences on energy balance-related behaviors
Saturated fat consumption and the Theory of Planned Behaviour
Automatic and Motivational Correlates of Physical Activity
The purpose of this study was to examine the predictive capability of a habit construct, controlling for intention and perceived behavioral control, with moderate and strenuous intensity physical activity. This approach was expanded through an examination of whether conscious deliberation in the initiation of physical activity would attenuate these findings and a test of the intention-habit interaction. Participants were 337 undergraduate student…
Understanding college students’ fruit consumption. Integrating habit strength in the theory of planned behaviour
A Systematic Review and Meta-analysis of Applications of the Self-Report Habit Index to Nutrition and Physical Activity Behaviours
The importance of habits in eating behaviour. An overview and recommendations for future research
Towards parsimony in habit measurement
BACKGROUND: The twelve-item Self-Report Habit Index (SRHI) is the most popular measure of energy-balance related habits. This measure characterises habit by automatic activation, behavioural frequency, and relevance to self-identity. Previous empirical research suggests that the SRHI may be abbreviated with no losses in reliability or predictive utility. Drawing on recent theorising suggesting that automaticity is the 'active ingredient' of habit…
Using implicit associations towards fruit consumption to understand fruit consumption behaviour and habit strength relationships
An implicit association test (IAT) was used to investigate how habit strength, implicit attitudes and fruit consumption interrelate. Fifty-two participants completed a computerized IAT and provided measures of fruit consumption and related habit strength. Implicit attitudes moderated the habit strength-fruit consumption relationship; stronger relationships were observed when implicit attitudes were more positive. Amongst those with strong fruit h…
Effects of preparatory and action planning instructions on situation-specific and general fruit and snack intake
Improving cardiometabolic health through nudging dietary behaviours and physical activity in low SES adults
The real-life trial has been registered on 30 May 2018, NTR7302
Intervening through Conversations
A promising avenue for health behavior change is to influence conversational valence, that is, the extent to which people talk negatively or positively about health behaviors. However, no research to date has experimentally manipulated conversational valence, thereby inhibiting conclusions about causal inferences. This study aims to fill this gap by investigating the influence of conversational valence instructions on perceived conversational val…
Dual Process Models and Information Engagement
This study uses a three-wave prospective longitudinal survey (at 6-month intervals) to test effects of information seeking and scanning on attitudes toward marijuana among college students in Israel (N = 700). We integrate constructs from the elaboration likelihood model to contrast processes of attitude change among individuals who vary in moderators of information processing depth (motivation and ability). In addition, we test whether trust in …
Buffering against exposure to mental health misinformation in online communities on Facebook
Results provide evidence that the more members reported being exposed to mental health misinformation, the more they tended to agree with it, however this was only visible when participants had lower depression literacy and were participating in peer-led OCMHs. Results of this study suggest that both internal factors (i.e., high depression literacy) and external factors (the type of online community individuals were participating in) can buffer t…
Differences in usage and engagement rates of an online physical activity intervention among subgroups of adults aged 50 years and older in a practical setting
Reach, use and effects of digital health interventions (DHIs) vary greatly among subpopulations, with lower usage rates and effects among groups with low socioeconomic status (SES) and chronic diseases. However, reaching these groups and improving their DHI use is crucial since they could benefit the most from improving their health and lifestyle. The aim of this study was to provide insight into usage and engagement rates of an online physical a…
How Dutch orthopedic healthcare professionals perceive antibiotic resistance
Healthcare professionals must act to curb antibiotic resistance (ABR), one of today's greatest threats to global health. This study applied the mental model approach to understanding perceptions of ABR among different Dutch orthopedic healthcare professionals. The expert model (step 1) was based on evidence-based ABR information and expert interviews ( n = 3). This model prompted the step 2 questionnaire to inquire about perceived causes, consequ…
Psychology (12 works) · Behavioral Health and Interventions (11 works) · Social Psychology (9 works) · Habit (6 works) · Medicine (6 works) · Developmental psychology (5 works) · Physical Activity and Health (5 works) · Eating Disorders and Behaviors (4 works) · Obesity, Physical Activity, Diet (4 works) · Cognition (3 works)