Reaction-time intra-individual variability

1. Feedback decreases reaction-time intra-individual variability in humans (older adults).

   “reaction-time variability in older adults is reduced within minutes by feedback”

   Reviewolder adults

   The Economy Point: How Comfort Withdrew the Load That Held Cortical Timing in Place

   Zenodo (CERN European Organization for Nuclear Research)·Jun 19, 2026Preprint

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1. Aerobic fitness is associated with reaction-time intra-individual variability in humans (adults).

   “is lower in aerobically fitter adults, and aerobic fitness moderates the age–variability relationship”

   Reviewadults

   The Economy Point: How Comfort Withdrew the Load That Held Cortical Timing in Place

   Zenodo (CERN European Organization for Nuclear Research)·Jun 19, 2026Preprint

1. Reaction-time intra-individual variability predicts dementia in humans.

   “predicts incident dementia, and correlates with inferior-temporal tau.”

   Review

   The Shared Substrate: Late-Life Depression and Dementia as Sequential Expressions of Cortical Timing Decline — A Hypothesis Worth Testing

   Zenodo (CERN European Organization for Nuclear Research)·Jun 10, 2026Preprint

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1. Depression is associated with reaction-time intra-individual variability in humans.

   “reaction-time intra-individual variability — measured by ordinary tasks unconnected to any single instrument — is elevated in depression”

   Review

   The Shared Substrate: Late-Life Depression and Dementia as Sequential Expressions of Cortical Timing Decline — A Hypothesis Worth Testing

   Zenodo (CERN European Organization for Nuclear Research)·Jun 10, 2026Preprint

More on Depression