anorexia nervosa eating disorder
Conditions
Interventions
None listed
Sponsors
Universiteit Utrecht
Eligibility
Age
12 Years to 17 Years
Inclusion criteria
Inclusion criteria: Meeting criteria for anorexia nervosa (DSM-V), both subtypes binge purge and restrictive Within age group 14-18 Female
Exclusion criteria
Exclusion criteria: For the healthy control group: no current or lifetime eating disorder
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Main study parameters/endpoints: The main study parameters of the current study are the differences in levels of interoceptive abilities in adolescent girls with and without AN, based on experimental tasks and self-report measures. These measures allow us to test whether adolescents with AN display more disturbances in interoceptive abilities compared to adolescents without AN. The main endpoint of interoceptive accuracy. Heart Rate Discrimination Task (HRD): For the interoceptive condition, the difference between the true frequency of the heart rate, as attended to by the participant, and the estimated cardiac frequency by the participant will be calculated in beats per minute. A negative result indicates the degree to which participants underestimate their cardiac frequency while a positive result indicates an overestimation. This will be the first time that this task will be executed in a AN population. However, we know from a recent study in a healthy adult population that individuals underestimated their heartbeat with 7 beats on average (Legrand et al., 2021), it is unknown what performance on this task to expect within a clinical adolescent population. Therefore, it is impossible even to make exploratively expectations regarding hypothesis. The main endpoint of interoceptive sensibility; will be measured using the VAS scale that is included in the HRD task. After the presentation of the interoceptive as well as for the exteroceptive condition and the decision of the participant whether the presentation of the tone was faster or slower, the participant is asked to provide a subjective confidence rating from 0 (uncertain) to 100 (certain). It is expected that adolescent girls with AN will have lower scores on interoceptive sensibility measured by the VAS scale of the HRD when compared to adolescent girls without AN (Legrand et al., 2019). The main endpoint of the interoceptive awareness: all 37 items of the MAIA-II summed up and avera | — |
Secondary
| Measure | Time frame |
|---|---|
| Following the objectives of our study, there are three secondary study parameters. The second study parameters include the covarying effects of three components of body image: perceptual, cognitive-affective (body dissatisfaction) and behavioral component (body checking and body avoidance) on interoceptive abilities in adolescent girls with and without AN. Experimental and self-report measures will be used and will be described in more detail below. The main endpoint of the perceptual component of body image disturbances: the percentage of misestimations on the Tactile Estimation Test where a higher percentage indicates a larger overestimation. The main endpoint of the cognitive-affective component of body image disturbances: all scores of all 20 items of the LAV summed up. The main endpoint of the behavioral component of body image disturbances: scores on all 27 items of the BCAQ summed up. | — |
Countries
Netherlands
Outcome results
None listed