Corticomotor recruitment slope

1. Aβ42/Aβ40 ratio is associated with corticomotor recruitment slope in humans (85.8 ±55.6 vs 50.0 ±52.3, p = 0.014).

   “The corticomotor recruitment slope was also greater in the high‐risk group (85.8 ±55.6) vs. low‐risk (50.0 ±52.3), p = 0.014”

   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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