Mapping human brain lesions and their functional consequences.

Area of Science:

• Cognitive Neuroscience
• Neuroimaging
• Brain Mapping

Background:

• Neuroscience traditionally infers brain function from lesion-behavior relationships, offering causal insights beyond correlative methods.
• Lesion-based analyses are crucial for understanding clinical deficits and brain architecture.
• Voxel-based lesion behavior mapping (VLBM) has become a key method in human brain architecture research.

Purpose of the Study:

• To review how voxel-based lesion behavior mapping (VLBM) advances our understanding of functional brain architecture.
• To discuss the limitations of VLBM's mass-univariate approach.
• To introduce and evaluate novel methods that supplement traditional VLBM.

Main Methods:

• Review of existing literature on lesion-behavior mapping and voxel-based lesion behavior mapping (VLBM).
• Overview of emerging techniques: specialized imaging, integration with connectome data, and multivariate analyses.
• Discussion of how these new methods complement traditional VLBM.

Main Results:

• VLBM significantly improves knowledge of functional brain architecture but is limited by its mass-univariate nature.
• New methods, including advanced imaging, connectome data integration, and multivariate analyses, offer complementary approaches.
• These synergistic tools enhance the investigation of brain function and clinical deficits.

Conclusions:

• Advanced methods are presented as complements, not replacements, to traditional VLBM.
• The integration of these techniques promises richer insights into brain function and clinical applications.
• These evolving methods hold significant potential for cognitive neuroscience and clinical practice.