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30-06-2022 | Original Article

Lack of Differential Symptom Change with Cognitive-Behavioral versus Light Therapy for Winter Depression: A Network Intervention Analysis

Auteurs: Richard J. Norton, Michael A. Young, Kelly J. Rohan

Gepubliceerd in: Cognitive Therapy and Research | Uitgave 5/2022

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Abstract

Background

This study is a network intervention analysis comparing the symptomatic response of two first-line treatments for winter seasonal affective disorder (SAD): light therapy (LT) and group cognitive-behavioral therapy for SAD (CBT-SAD).

Methods

Scores on the Beck Depression Inventory-II at mid- and post-treatment on individual items and on four previously-identified symptom clusters were examined in SAD patients randomly assigned to receive LT (n = 85) or CBT-SAD (n = 74).

Results

No treatment differences in either individual symptoms or symptom cluster scores were observed. In both mid- and post-treatment networks, symptoms were primarily associated with each other within their respective, cognitive, vegetative, and affective domains (regardless of treatment). Results suggest that symptom network connections may weaken across treatment.

Conclusions

The lack of treatment differences indicates that these two mechanistically different treatments do not differ in effect on symptoms or symptom clusters. Future work should examine the association of treatment with symptom types over shorter time intervals.
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Voetnoten
1
Negative Cognition: Pessimism, Past Failures, Guilty Feelings, Punishment Feelings, Self-Dislike, Self-Criticism, Suicidal Thoughts, Crying, Worthlessness, Sadness. Dysregulation: Irritability, Concentration, Agitation, Indecisiveness. Increased Appetite/Weight: Weight Gain, Increased Appetite. Loss of Vitality: Loss of Pleasure, Loss of Interest, Loss of Energy, Tiredness/Fatigue, Loss of Interest in Sex, Hypersomnia.
 
2
Several methods for measuring change exist. We also ran analyses using raw change scores and residualized change scores (e.g., Mullarkey et al., 2020). Results were virtually identical to those using raw scores at both mid- and post-treatment and so we report here the raw score results based on their simplicity and ease of interpretation.
 
3
Accuracy of the network edges was also examined through bootstrapping. These results are provided in supplementary materials.
 
Literatuur
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Metagegevens
Titel
Lack of Differential Symptom Change with Cognitive-Behavioral versus Light Therapy for Winter Depression: A Network Intervention Analysis
Auteurs
Richard J. Norton
Michael A. Young
Kelly J. Rohan
Publicatiedatum
30-06-2022
Uitgeverij
Springer US
Gepubliceerd in
Cognitive Therapy and Research / Uitgave 5/2022
Print ISSN: 0147-5916
Elektronisch ISSN: 1573-2819
DOI
https://doi.org/10.1007/s10608-022-10315-y

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