Assessing motor, visual and language function using a single 5-minute fMRI paradigm: three birds with one stone

Area of Science:

• Neuroimaging
• Cognitive Neuroscience
• Clinical Neuroscience

Background:

• Clinical functional Magnetic Resonance Imaging (fMRI) necessitates precise localization of brain functions at the individual subject level.
• Current fMRI protocols often require lengthy acquisition times and multiple tasks to assess different cognitive domains.

Purpose of the Study:

• To evaluate a single "triple use" task for its sensitivity and reliability in assessing motor, visual, and language domains in healthy adults.
• To determine the feasibility of this task for clinical fMRI applications, aiming to reduce scan time and simplify procedures.

Main Methods:

• A "triple use" fMRI task with two conditions was administered to 20 healthy adult subjects.
• Condition 1 assessed motor and visual domains, while Condition 2 assessed the language domain, with tasks serving as mutual controls.
• Random effect analyses were used to assess activation patterns and reliability at the individual subject level.

Main Results:

• Expected activations were observed in primary motor, visual, and language regions.
• Reliability of primary activation patterns was high, with 70-100% of subjects showing activation in key areas.
• Additional, less expected regions also showed activation for motor and visual domains.

Conclusions:

• The "triple use" task demonstrates high reliability for assessing motor, visual, and language functions individually in clinical fMRI.
• This task offers benefits including reduced acquisition time, task simplicity, and the use of a visual stimulus.
• The validated task holds potential for pediatric clinical fMRI due to its efficiency and relevance.