Cortical research focuses on the study of the cerebral cortex, the outer layer of the brain responsible for higher cognitive functions such as perception, memory, and language. Researchers in this field investigate the structure, function, and development of the cortex, as well as how it is involved in various neurological and psychiatric disorders. Techniques used in cortical research include neuroimaging, electrophysiology, and cognitive testing. This area of research is important for understanding the complexities of the human brain and developing treatments for brain-related disorders.