Fig. 2From: Retained capacity for perceptual learning of degraded speech in primary progressive aphasia and Alzheimer’s diseaseParticipant group performance over testing sessions. Data plots of participant group performance over the course of the testing sessions for processing sine-wave replicas of spoken numbers and geographical place names. Values represent mean group scores with SDs for each corresponding trial block (see text for details) in each condition. Controls Healthy control group, lvPPA Patient group with logopenic variant primary progressive aphasia, nfvPPA Patient group with non-fluent variant primary progressive aphasia, svPPA Patient group with semantic variant primary progressive aphasia, tAD Patient group with clinically typical Alzheimer’s diseaseBack to article page