Long-term musical training can protect against age-related upregulation of neural activity in speech-in-noise perception
Fig 4
Spatial alignment of TiFC to YNMs and within group.
A, Illustration of the calculation of intersubject spatial correlation; see “Methods” for details. B–C, OMs showed greater spatial alignment to YNMs than ONMs in left PrCGsup (B), and greater spatial alignment to YNMs predicted lower TiFC strength in OMs (C). D–E, Mean 3D coordinates of the voxels that showed top 10% TiFC were plotted in D. Voxels of ONMs exhibited significantly different positions in Z axis compared to YNMs, while no difference was found between OMs and YNMs (E). F, ONMs showed greater spatial correlation within the group than OMs and YNMs. Bar plots show the group mean of specific Z-axis index in L PrCGsup. Error bars indicate the SEM. Data are available on OSF (https://osf.io/89hbn/). Brain icon in panel A was sourced from: https://upload.wikimedia.org/wikipedia/commons/0/08/Wikimedia_Brand_Guidelines_Update_2022_-Brain.svg. * < 0.05, **
< 0.01; OMs, older musicians; ONMs, older non-musicians; YNMs, young non-musicians; L PrCGsup, left superior part of precentral gyrus.
