Table 1.
Six different T1-weighted structural MRI sequences were used across two MRI scanners.
Table 2.
Effects of weather and time of year (month of scan compared to January) on select ROIs.
Fig 1.
Cerebellum cortex and subcortical volumes compared.
Plots aligned to annual mean for each ROI. Box plot indicates standard error, and extension lines indicate 95% confidence interval. Thick line indicates mean volume.
Fig 2.
Monthly trends in percent difference from annual mean in left- and right-cerebellum cortex, and left- and right-cerebellum white matter, in males and females.
This figure demonstrates the trend peaks at different times of year, but is only for illustrative purposes and not all comparisons between months were statistically significant.
Table 3.
Effects of weather and month on brain volume ROIs.
Table 4.
Effects of weather and month on brain volume ROIs.
Table 5.
Comparison of effect size of monthly differences from uncorrected t-tests in the Olin sample with effect sizes of previously published large data samples.