Temporal and contemporaneous network structures of affect and physical activity in emotional disorders
Section snippets
Inclusion and exclusion characteristics
Participants were included in the study if they exhibited the following characteristics: 1) were at least 18 years old, 2) satisfied criteria for high negative affect (i.e., a score ≥ 22 on the negative affect subscale of the Positive and Negative Affect Schedule; PANAS), 3) were stable on current psychotropic medication with the same dose and same regimen for a minimum of 6 weeks and were willing to maintain stable dose, OR off concurrent medication for at least 2 weeks prior to first study
Time-series diagnostics
For all nodes, data was screened for multicollinearity to assess potential node redundancy. None of the contemporaneous bi-variate correlations exceeded standard cut-offs thresholds for multicollinearity (r ≥ 0.80; Berry and Feldman, 1985). Also, all nodes were screened for potential time trends. Individual multilevel models were estimated such that each variable was regressed on a time variable. None of the models exhibited a statistically significant relationship between the respective node
Discussion
To elucidate the time-series characteristics of positive affect, negative affect, and physical activity, we used a time-series network approach in a sample of treatment-seeking individuals with high trait negative affect. The primary aims were to investigate the temporal and contemporaneous network structure of positive affect, negative affect, and physical activity. In the temporal network, the node representing sadness evidenced the greatest out-strength, both predicting itself and inversely
Funding
This study received funding from the APA Dissertation Research Award and was funded in part by the Alexander von Humboldt foundation.
CRediT authorship contribution statement
Joshua E. Curtiss: Conceptualization, Methodology, Investigation, Writing – original draft, Writing – review & editing. Megan Pinaire: Investigation, Writing – original draft, Writing – review & editing. Daniel Fulford: Conceptualization, Methodology, Writing – original draft, Writing – review & editing. Richard J. McNally: Conceptualization, Methodology, Writing – original draft, Writing – review & editing. Stefan G. Hofmann: Conceptualization, Methodology, Writing – original draft, Writing –
Declaration of competing interest
S.G.H. receives financial support from the Alexander von Humboldt Foundation, NIH/NCCIH (R01AT007257), NIH/NIMH (R01MH099021, U01MH108168), and the James S. McDonnell Foundation 21st Century Science Initiative in Understanding Human Cognition — Special Initiative. He receives compensation for his work as editor from SpringerNature and the Association for Psychological Science, and as an advisor from the Palo Alto Health Sciences, Otsuka Pharmaceuticals, Jazz Pharmaceuticals, and for his work as
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