Experimental setup and surface-based cortical depth analysis. (A) A 24-channel temporal lobe coil array with the mechanical housing, including 24 coil elements arranged hexagonally and critically overlapped to cover the right temporal lobe. (B) The noise correlation matrix of the coil array. (C) Spatial distributions of the SNR and tSNR gain ratio between a 24-channel temporal lobe array and a 32-channel whole-head array. (D) Registration between functional and anatomical images. The yellow contour denotes the gray-white matter interface reconstructed from the anatomical image. (E) An axial slice of the anatomical image superimposed with seven reconstructed cortical surfaces ranging from the white matter to the pial surface. The blue contour represents the gray-white matter boundary. The red contour represents the gray-pial surface boundary.