11. A . Synapses are the spaces between brain cells. 12. Studies show there is a correlation between brain lesion and language, speech, and category-specific disorders. 13. Pavlov proposed that conditioning involved a connection between brain centers for conditioned and unconditioned stimuli. 14. Studies demonstrate a correlation between brain size and intelligence, with larger brains predicting higher intelligence. 15. The Detour was a choice between Brains and Brawn. 16. Correlations between brain activity and overt behaviors have also been shown in patients undergoing neurosurgery. 17. Its role seems to be to control the number of synapses, or connections between brain cells. 18. The axons travel in tracts or clusters throughout the brain, providing extensive interconnections between brain areas. 19. His intention was eventually to show the connection between brain chemistry and mental and neurological illnesses. 20. Scientists who study human development believe a link may exist between brain maturation and social maturation.
