Fig. 3
From: Early visual alterations in individuals at-risk of Alzheimer’s disease: a multidisciplinary approach
Visual response related time–frequency analysis. A Grand-averaged TF representation in the sensor space. B Grand-averaged TF representation in the sensors inside the A rectangles. C Grand-averaged TF representation in the source space (calcarine cortex). Rectangles in A indicate the sensors in which the activity is best perceived. Rectangles in B and C indicate the TF range in which the activity is more prevalent, which is later used for the analysis