AI Article Synopsis
- This study investigates circadian rhythms, focusing on two main factors: amplitude and stability, as well as their correlation with participants' sleep patterns and resilience.
- Researchers recruited 1,163 participants and found a negative correlation between amplitude and phase, indicating that lower amplitude is linked to better resilience and less sleep need.
- The findings also revealed that as participants age, their circadian rhythm amplitude decreases, while stability remains stable, suggesting different impacts of age on these two aspects of circadian rhythms.
Article Abstract
Self-report tools that measure circadian rhythms have focused primarily on phase. We add to the sparse literature on assessing amplitude and stability. We randomly recruited 1,163 participants who completed several measures. The correlation between the LV scale (amplitude) and FR scale (stability) was -0.12 ( < 0.01). As expected, amplitude was negatively associated with phase ( = -0.64, < 0.01) while stability showed a weak link with phase ( = 0.07, < 0.05). Structural equation modeling suggested a close model-fit of the factor structure in the sample (RMSEA = 0.033). The LV scale explained 22% of the variance, while the FR scale explained 23%. Scale reliability was satisfactory for the LV scale (0.68) and good for the FR scale (0.73). Participants with low amplitude or flexible rhythms reported significantly better resilience, coping, and required less daily sleep. We constructed a composite circadian categorical variable to combine the best attributes from the LV and FR scales; participants with low amplitude and flexible rhythms, reported significantly better resilience, coping, and less sleep need. We found rhythm amplitude decreased with age, while stability remained constant.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8660081 | PMC |
| http://dx.doi.org/10.3389/fpsyg.2021.782349 | DOI Listing |
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