Brain story: Psychology Brain functionalities and parts responsible Exam Review Questions with Accurate Answers 2023/2024

Brain story: Psychology Brain functionalities and parts responsible Exam Review Questions with Accurate Answers 2023/2024 Phineas Gage - correct answer - railroad worker who survived a severe brain injury that dramatically changed his personality and behavior; case played a role in the development of the understanding of the localization of brain function - Tamping rod shot completely through Skull (a type of brain lesion) -Damaged part of frontal lobe -Gage became a “totally changed” man • Irritable, profane, impossible to reason with -Evidence that frontal lobe is involved in The inhibition of socially inappropriate Behavior How else do we study the brain? - correct answer 1• Lesion the brain (old technology) 2- Stimulate the brain (old technology) 3• EEG (electroencephalogram) (New technology) 4• PET (positron emission tomography) (New technology) 5• fmri (magnetic resonance imaging) (New technology) Lesion of the brain - correct answer -tissue destruction. A naturally or experimentally caused destruction of brain tissue. - Can be done on a human or an animal - This tells you the area of the brain necessary for a behavior - If you damage (Lesion) a brain and you lose a behavior then you determined what area of the brain is necessary for a behavior - Lesion a region of the brain called the Amygdala and the animal shows no fear -Amygdala is responsible for fear Stimulate (touch) the brain. - provide a little bit of electricity or sometimes even kind of touch it right and then see what happens - If you stimulate a area of the brain called the homunculus, , it would equate to kind of like a reflex and you could move whatever body part that's associated with that area of the brain, fingers, leg, etc - can actually have somebody wiggle their fingers. - This does not destroy the area of the brain Electroencephalogram (EEG) - correct answer - electrodes placed on the scalp measure electrical activity in neurons, electrical activity sweeping across the brains surface. - This is not shocking people. This is reading only right, so this is taking measurements - What part of the brain is active in when a given point in time. - Example, show someone something scary and see how part of the brain changes in activity