We would like to understand how aphasia due to stroke affects skills that support learning. Understanding this may lead to improvements in aphasia treatment in the future. Participants will come to our lab at MGH Institute of Health Professions in the Charlestown Navy Yard (Boston). The study will involve: - Completing learning tasks on the computer. You will see and hear made up words and objects, press buttons, and answer questions - Measuring electrical activity in your brain using EEG while you learn - Completing tests of language and cognition