Wigman2015 - Exploring the underlying structure of mental disorders, cross-diagnostic differences and similarities from a network perspective using both a top-down and a bottom-up approach
- Date read: 2022-09-12
- Subject: Network theory
- Bibtex: @wigman2015
- Bibliography: Wigman, J. T. W., van Os, J., Borsboom, D., Wardenaar, K. J., Epskamp, S., Klippel, A., MERGE, Viechtbauer, W., Myin-Germeys, I., & Wichers, M. (2015). Exploring the underlying structure of mental disorders: Cross-diagnostic differences and similarities from a network perspective using both a top-down and a bottom-up approach. Psychol. Med., 45(11), 2375–2387. https://doi.org/10.1017/S0033291715000331
Moment-to-moment mood connections are stronger in individuals with a mental disorder, suggesting that those individuals are susceptible to downward spirals of negative mental states [@wigman2015].
- Experience Sampling Method dataset, n = 599
- Psychotic disorder
- No diagnosis
- Top-down: mental states cheerful, content, down, insecure, suspicious were compared
- Bottom-up: PCA to see if network structures clustered
- qgraph used to display networks
- Results: Stronger moment-to-moment connections in both diagnostic groups. Seven main components from the PCA.
- I didn’t really understand the bottom-up stuff. Results were difficult to interpret.
Networks of individuals with a psychiatric diagnosis contained loops which may catch individuals into a downward spiral of negative mental states.
LOTS of pooled small studies
Stronger between-mood links in depression
I think this is interesting, and kind of resonates with how we view depression. You can get “stuck” in negative mood states and not respond adequately to external changes. Tipping point into negative mood states.