Logopenic progressive aphasia

This study tests whether a safe, painless brain stimulation technique called tDCS can improve verbal learning in people with Alzheimer's disease. Researchers will compare active stimulation to a sham (fake) version in 90 participants with typical or language-based Alzheimer's. Th…

This study tests two types of speech therapy for people with primary progressive aphasia, a brain disorder that slowly destroys language skills. Sixty participants will work on word retrieval or script practice with a clinician and at home. Researchers will measure changes in com…

This study tests a speech-language telerehabilitation program for people with primary progressive aphasia (PPA), a dementia that slowly destroys language abilities. The program includes online therapy sessions and care partner training. Researchers will enroll 21 participants to …

This study aims to learn more about diseases that affect the brain, such as Parkinson's disease and different types of dementia. Researchers will follow 500 adults with symptoms of these conditions over time, using brain scans and genetic tests to see how the diseases progress. T…