A primary central source determines perturbation-evoked N1 amplitudes in younger adults
Abstract
We demonstrate that channel-level amplitudes of the balance perturbation-evoked N1 in younger adults primarily reflect neural activity originating from cortical central midline regions, particularly the supplementary motor area (SMA). In contrast, contributions from parallel active brain regions evoked by balance perturbations are indicated by an effect on N1 peak latencies. Our findings imply that the perturbation-evoked N1, unlike other evoked potentials, is not a mixture of multiple neural sources in younger adults.
Fields of Study & Subjects
Balance
Gait
and Falls Prevention
Functional Brain Connectivity Studies
Neural dynamics and brain function
Publication details
- Journal / source
- Journal of Neurophysiology
- Publisher
- American Physiological Society
- Volume
- 135
- Issue
- 5
- Pages
- 1315–1323
- Publication date
- 20 April 2026
- Language
- EN