1. Verbal memory following weight gain in adult patients with anorexia nervosa: A longitudinal study.
- Author
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Terhoeven, Valentin, Faschingbauer, Sandra, Huber, Julia, Herzog, Wolfgang, Friederich, Hans‐Christoph, Simon, Joe J., and Nikendei, Christoph
- Subjects
MEMORY ,WECHSLER Memory Scale ,ANALYSIS of variance ,CROSS-sectional method ,MULTIVARIATE analysis ,WEIGHT gain ,PSYCHOMETRICS ,NEUROPSYCHOLOGICAL tests ,RESEARCH funding ,DESCRIPTIVE statistics ,ANOREXIA nervosa ,DATA analysis software ,EATING disorders ,LONGITUDINAL method - Abstract
Background: Patients with Anorexia Nervosa (AN) show a moderate deficit in overall neuropsychological functioning. Since previous studies on memory performance mainly employed cross‐sectional designs, the present study aims to investigate changes in verbal memory following weight‐gain. Methods: Verbal memory was assessed with the Wechsler Memory Scale‐Revised (WMS‐R; 'logical memory'‐story‐recall‐subtest) and the California Verbal Learning Test‐II (CVLT‐II; 'verbal learning'). Included were 31 female patients with AN (18 restricting‐, 13 purging‐subtype; average disease duration: 5.1 years; average baseline BMI: 14.4 kg/m2) and 24 medication‐free normal‐weight healthy women adjusted for age at baseline (T0). In a post‐treatment assessment of approx. 6 weeks with weight increase (T1), 18 patients with AN and 20 healthy women were assessed again. Group differences in verbal memory (i.e., WMS‐R, CVLT‐II) were assessed for the baseline comparisons with a multivariate ANOVA and longitudinal data were analysed with repeated measures (RM) ANOVAs. Results: At baseline, patients with AN as compared to healthy women displayed deficits in logical memory. In the follow‐up assessment, patients with AN improved their logical memory significantly compared to healthy controls (p < 0.006). Furthermore, groups did not differ in verbal learning neither before nor after inpatient treatment. Conclusions: Enhanced logical memory in patients with AN following weight‐gain is probably due to the impaired memory as compared to healthy controls at T0. A survivorship bias could explain the improved memory performance in longitudinal data in contrast to cross‐sectional studies. Patients with AN with poorer memory performance before inpatient treatment are at higher risk to drop out and need support. Key points: Impaired logical memory before inpatient treatment improves in patients with anorexia nervosa (AN) during weight‐gain, while verbal learning seems to be intact before as well as after inpatient treatment as compared to healthy women.Drop‐out‐analyses revealed that patients with AN with poorer logical memory performance before inpatient treatment are at higher risk to drop out, and should receive further therapeutic support.Results imply, that therapeutic interventions using cognitive strategies may be overwhelming in severely ill patients with AN during early stages of the disease, while early cognitive interventions might be effective in a less sick, more motivated subgroup of patients with AN. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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