Magnetic resonance imaging in the evaluation of cognitive function

Area of Science:

• Neuroimaging
• Radiology
• Cognitive Neuroscience

Background:

• Magnetic resonance imaging (MRI) has evolved from depicting gross brain anatomy to enabling sophisticated analysis of brain-behavior relationships.
• Advances in image processing and quantification in the 21st century have refined methods for studying cognitive functioning.

Purpose of the Study:

• To overview current MRI methods for routine clinical assessment of brain pathology.
• To explain how MRI techniques identify and quantify neuropathology.
• To highlight the examination of brain function and connectivity using advanced MRI.

Main Methods:

• Review of current magnetic resonance imaging (MRI) techniques for clinical brain pathology assessment.
• Detailed examination of diffusion tensor imaging (DTI) for white matter tract analysis.
• Overview of functional MRI (fMRI) and resting-state fMRI for brain activity and connectivity studies.

Main Results:

• Current MRI methods provide detailed insights into brain structure and function, surpassing gross anatomical visualization.
• Diffusion tensor imaging (DTI) allows for the quantitative assessment of white matter integrity.
• Functional MRI (fMRI) and resting-state fMRI reveal patterns of brain activity and functional connectivity related to cognitive processes.

Conclusions:

• Advanced MRI techniques, including DTI and fMRI, are crucial for understanding neuropathology and brain-behavior relationships.
• These neuroimaging methods enable refined quantification of pathological findings and examination of brain function.
• The study highlights the regional brain function associated with cognitive control, facilitated by modern MRI capabilities.