Resting motor threshold

1. Aβ42/Aβ40 ratio is associated with resting motor threshold in humans (70.0 ±12.5 vs 78.5 ±14.4, p = 0.039).

   “The high‐risk group showed a lower RMT (70.0 ±12.5) than the low‐risk group (78.5 ±14.4), p = 0.039”

   Humanscognitively normal adults, high Aβ risk (plasma Aβ42/Aβ40 <0.1)left 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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