Effect of Striatal Temporal Interference Stimulation on Language Processing in Neurodegenerative Diseases

This study is testing a new non-invasive brain stimulation technique called temporal interference stimulation — which uses painless electrical signals to target deep brain areas — to see if it can improve language and communication abilities in people with early-stage memory and thinking problems related to neurodegenerative diseases like Parkinson's disease and Lewy body dementia. **You may be eligible if:** - You have been diagnosed with mild cognitive impairment (MCI) associated with Lewy bodies, Parkinson's disease, or amnestic MCI (a type of early memory decline) - You have been evaluated and meet established diagnostic criteria for one of these conditions **You may NOT be eligible if:** - You have a severe psychiatric disorder - You have another neurological condition affecting the central nervous system (beyond the ones listed above) - You have had severe head trauma - You have uncontrolled serious medical or cancer-related illness - You have metal implants in your body that are incompatible with the stimulation device (e.g., a pacemaker) Talk to your doctor to see if this trial is right for you.