Motor evoked potential amplitude

1. Older-adults are associated with motor evoked potential amplitude in humans (SMD = -0.55).

   “exhibited reduced resting motor evoked potential amplitudes (SMD = -0.55)”

   Reviewat rest

   Age-Related Differences in Corticospinal Function and Muscle Strength: A Systematic Review and Meta-Analysis

   The European journal of neuroscience·1 Aug 2026

1. Aβ42/Aβ40 ratio is associated with motor evoked potential amplitude in humans (-2.3 ±39.8% vs -28.9 ±23.8%, p = 0.017).

   “the decrease was smaller in the high‐risk group (‐2.3 ±39.8%) vs. low‐risk (‐28.9 ±23.8%), p = 0.017”

   Humanspost-intermittent theta-burst stimulation in high Aβ riskleft motor cortexn = 58

   Alterations in cortical excitability and plasticity are associated with amyloid accumulation in cognitively unimpaired elderly

   AAIC 2025 abstract·7 Jan 2026

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