Independent, interdisciplinary research project in cognitive science for advanced graduate students pursuing a joint PhD in an approved core discipline and cognitive science. Research projects integrate at least two areas within the cognitive sciences: psychology, computer science, linguistics, education, philosophy. Students need commitments from two mentors for their project. Recommended prerequisite: EDUC 6505 or PHIL 6310. Same as CSCI 7422 and EDUC 6516 and LING 7425 and PSYC 7425 and SLHS 7428.