Explore the foundational concepts of cognitive neuroscience in this lecture from MIT's undergraduate course "The Human Brain." Delve into David Marr's levels of analysis framework for studying the human mind and brain. Examine how this approach applies to various cognitive functions, with a particular focus on color vision. Learn about the computational theory of color vision and its implications for understanding human perception. Gain insights into the challenges and complexities of studying brain function, and discover how researchers approach the analysis of cognitive processes. This lecture provides a solid introduction to the methods and theories used in modern cognitive neuroscience, preparing viewers for a deeper understanding of how the brain implements various perceptual and cognitive abilities.