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# Alpha memo: light bright ## Core signal Two filed studies in the corpus split the light-bright story along an axis most coverage collapses: bright ambient illumination is framed as boosting nighttime alertness and cognitive performance (10.1016/0031-9384(90)90320-4), yet the same intervention is shown as selectively inert on sustained attention in elderly night shift workers (10.1177/1477153511…
sha256 42b5a59d16fa312b…