Poppy Zenzi Grimes
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pzg.bsky.social
Poppy Zenzi Grimes
@pzg.bsky.social
Final yr PhD @ UoEdinburgh; Genetic epidemiology ~ adolescent depression. Trajectories📈genomics🧬networks🕸️dynamic systems🌀
We hope it can be used in other conditions to identify the best timing for intervention.🧠

Thanks to co-authors, participants of the #ALSPAC #CO90s #ABCDStudy and #MCS, and to funders @ukri.org MRC and @wellcometrust.bsky.social 🌟
April 29, 2025 at 2:42 PM
This is the first application of network temperature 🌡️ in mental health and provides a network-wide alternative to node-focussed measures (centrality estimates) which lack applicability in mental health conditions...
April 29, 2025 at 2:39 PM
Our findings highlight the criticality of early intervention in young people when symptoms are more flexible and responsive to intervention or treatment 🩺

Depression is not just about the type of treatment - but the timing! ⏳...
April 29, 2025 at 2:38 PM
In 3 large longitudinal adolescent cohorts (@CO90s, @theabcdstudy MCS @CLScohorts) we found that temperature decreased across adolescence, meaning symptoms became more aligned and stable with age 📉🧊 ...
April 29, 2025 at 2:38 PM
We applied this to depression symptoms:

In a high temperature network, symptoms are less stable and fluctuate 🔥
In a low temperature network, symptoms are stable and harder to shift 🧊 ...
April 29, 2025 at 2:38 PM
Think of the transition from solid>liquid>gas: As temperature increases, particles become more random and less stable 🥵. As temperature decreases, the system becomes more rigid and fixed 🥶...
April 29, 2025 at 2:37 PM
Depression is dynamic - symptoms interact over time. We can model depression using networks which capture symptom-symptom relationships. 🕸️

We applied a concept from statistical thermodynamics - temperature 🌡️ ...
April 29, 2025 at 2:37 PM