Cerebellar Transcranial Magnetic Stimulation and Cognitive Control
Krystal Parker, PhD
Summary
The purpose of this study is to examine whether cerebellar stimulation can be used to improve cognitive deficits and mood in patients with schizophrenia, autism, bipolar disorder, Parkinson's disease, and major depression.
Description
Our recent work found that patients with Parkinson's disease and schizophrenia have impaired frontal EEG rhythms in the theta and delta range (1-8 Hz).We have been using transcranial direct current stimulation to recover these rhythms as patients perform elementary cognitive tasks. We found that although we are able to modulate cerebellar and frontal activity with tDCS, this effect is minimal as the depth of the current is not great enough to modulate all cerebellar activity. Here we use transcranial magnetic stimulation (TMS) to modulate neural activity in the frontal cortex and recover cogni…
Eligibility
- Age range
- 18–90 years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: * A clinical diagnosis consistent with enrollment Exclusion Criteria: * History of recurrent seizures or epilepsy * Any other neurological or psychiatric diagnosis outside the diagnosis for which the participant is enrolled. * Active substance use disorder in the past 6 months other than tobacco use disorder. * Inability to consent for study. * Pacemaker * Coronary Stent * Defibrillator * Neurostimulation * Claustrophobia * Uncontrolled high blood pressure * Atrial fibrillation * Significant heart disease * Hemodynamic instability * Kidney disease * Pregnant, trying to b…
Interventions
- DeviceRepetitive Transcranial Magnetic Stimulation (rTMS)
Subjects with neuropsychiatric diagnoses and matched-controls will be receive theta frequency stimulation of the cerebellum. We will target the cerebellar vermis.
- DeviceSham Repetitive Transcranial Magnetic Stimulation (rTMS)
Subjects with neuropsychiatric diagnoses and matched-controls will be receive sham stimulation of the cerebellum. We will target the cerebellar vermis.
Location
- University of IowaIowa City, Iowa