Additional file 5: of Retained capacity for perceptual learning of degraded speech in primary progressive aphasia and Alzheimer’s disease

ROIs. Representative brain MRI sections showing the neuroanatomical region (delineated in red) used to correct for multiple voxel-wise comparisons, based on prior anatomical hypotheses (see text). This region comprised the inferior frontal gyrus (triangularis + opercularis), anterior temporal lobe, temporal pole, posterior superior temporal gyrus, planum temporale, angular gyrus, supramarginal gyrus and inferior portions of the pre-central and post-central gyri. (PNG 138 kb

Additional file 3: of Retained capacity for perceptual learning of degraded speech in primary progressive aphasia and Alzheimer’s disease

Clear number. Natural speech version of CJDH saying “Nine hundred and sixty five”. (WAV 201 kb

Additional file 2: of Retained capacity for perceptual learning of degraded speech in primary progressive aphasia and Alzheimer’s disease

Sine-wave place name. Sine wave speech version of SJR saying “Germany”. (WAV 77 kb