1. The document discusses several ways that neuroscientists study the brain and its connections to behavior, including through cases of brain injury, EEG, PET scans, and MRI images. 2. It describes different parts of the brain including the brainstem, cerebellum, limbic system, and cerebral cortex, assigning specific functions to regions like the frontal lobes, parietal lobes, hippocampus, and amygdala. 3. Split brain experiments are discussed as revealing different functions of the left and right hemispheres, and the concept of "dual processing" between conscious and unconscious thoughts is introduced.