Ventrointermediate Nucleus (VIM DBS) and Working Memory

VIM DBS and Working Memory

This is part of a larger study for which participants have already completed memory and thinking tests. In this study, investigators are trying to learn how deep-brain stimulation affects memory skills in essential tremor (ET) patients. We are especially trying to figure out how stimulation on each side of the brain may affect working memory.

Inclusion Criteria:

ET PATIENTS:

• Clinical diagnosis of essential tremor affecting the upper extremities.
• Previous unilateral or bilateral DBS of the VIM
• Ages 40 -70
• A useable pre-surgical MR scan

CONTROLS:

• Spouse or acquaintance of enrolled patient participant
• Ages 40 - 70

Exclusion Criteria:

ET PATIENTS:

• Clinical evidence of other neurological conditions
• Significant psychiatric condition

CONTROLS:

• Clinical evidence of other neurological conditions
• Significant psychiatric condition