2. TRENDS IN CNS DEVELOPMENT
Increasing complexity with new structures added
The size of an area reflects the importance of sensory input from that area
Many areas are arranged in topological maps.

22. Tools for Brain Study
CT Scan
PET Scan
MRI
EEG

23. Waves --
alpha cps from parietal and occipital when awake
beta cps in frontal lobes stimulated by perceptual activity
theta cps in temporal and occipital lobes. Common in newborns, high stress in adults
Delta cps during sleep