 Phase I: Phase I participants will engage in two sets of activities: a standardized and informal language and cognitive measures and b a series of language and cognitive activities performed during the collection of event related potential ERP recordings. Standardized language measures will include the: a Test of AdolescentAdult Word Retrieval, b Cognitive Linguistic Quick Test, and c California Verbal Learning Test. Informal measures will include a conversational interaction about a participants language difficulties and a topic of hisher choosing. During the conversational interaction, participants will press a button each time they experience difficulty retrieving a word. 