A peak alpha frequency clinical indication label for autism spectrum disorder. Activity examined at the following brain regions: FpM, fronto-polar midline; FL, frontal left; FM, frontal midline; FR, frontal right; TAL, temporal anterior left; TAR, temporal anterior right; CL, central left; CM, central midline; CR, central right; TPL, temporal posterior left; TPR, temporal posterior right; PL, parietal left; PM, parietal midline; PR, parietal right; OpM, occipito-polar midline.