Sensory Filtering in the Human Basal Ganglia as a Mechanism of Parkinson's Disease

Part of paid clinical trials in Birmingham, Alabama.

Sponsor
University of Alabama at Birmingham
Study ID
NCT05482126
Status
Recruiting

Conditions

Eligibility Criteria

Sex
ALL
Age
18 Years - 89 Years
Healthy Volunteers
Accepted

Interventions

  • Intraoperative Behavioral Testing — DIAGNOSTIC_TEST
    During DBS surgery, tasks will be administered via a tablet PC or mounted monitor, and the subject may hold a response box, joystick, or dynamometer to record responses. During task periods, sensory stimuli will be delivered to the participant, who may be asked to perform a motor behavior in response. Stimuli will consist of audiovisual cues presented on a computer screen, vibration applied to specific parts of the body via a tactor, mild electrical pulses delivered through the skin of specific parts of the body via the attached EMG electrodes, and/or a movement of the arm or joint. Motor responses will consist of simple movements such as finger-tapping or hand-opening, or use of a joystick or dynamometer to move a computer cursor on the screen. Participants may be asked to respond only to a particular sensory stimulus and ignore others, in order to modulate the relevance of each stimulus to the task.
  • Behavioral Testing — DIAGNOSTIC_TEST
    In the lab, tasks will be administered via a tablet PC or mounted monitor, and the subject may hold a response box, joystick, or dynamometer to record responses. During task periods, sensory stimuli will be delivered to the participant, who may be asked to perform a motor behavior in response. Stimuli will consist of audiovisual cues presented on a computer screen, vibration applied to specific parts of the body via a tactor, mild electrical pulses delivered through the skin of specific parts of the body via the attached EMG electrodes, and/or a movement of the arm or joint. Motor responses will consist of simple movements such as finger-tapping or hand-opening, or use of a joystick or dynamometer to move a computer cursor on the screen. Participants may be asked to respond only to a particular sensory stimulus and ignore others, in order to modulate the relevance of each stimulus to the task.

Study Details

The investigators are investigating the brain activity associated with sensory information in movement disorders in order to improve treatment of these symptoms beyond what is currently available.

Key Dates

Start date
Jun 8, 2022
Status verified
Jan 2026
Primary completion
Aug 1, 2026
Completion
Dec 31, 2026

Study Design

Enrollment
30 participants (estimated)

Arms

  • Arm: Deep Brain Stimulation Surgery Patients
    The investigators will seek to enroll people with Parkinson's disease (PD) who have been approved for deep brain stimulation surgery (DBS) as part of their routine clinical
  • Arm: Healthy controls
    The investigators will seek to enroll a cohort of age- and sex-matched healthy individuals to act as a control group. This group will NOT undergo DBS surgery

Primary Outcome Measure

Kinematic response to stimulus (intraoperative) [ Time Frame: Intraoperative ]

Central Contacts

Locations (1)

FacilityCityStateZIPSite coordinators
The University of Alabama at Birmingham HospitalBirminghamAlabama35294
Zachary Irwin, PhD
(205) 934-6704

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