PSYCH 120A Chapter Notes - Chapter 2.3: Occipital Lobe, Parietal Lobe, Temporal Lobe
Document Summary
Research attempting to determine what"s happening where in the brain. Data reveals large overlap between brain structures needed for visualizing and actual vision activities have a great deal in common. Motor areas: organize and control bodily movements. Sensory areas: organizing and analyzing info from the senses. Primary motor projection areas: departure points; signals leave the cortex to control muscle movement. Primary sensory projection areas: arrival points; info coming from the sense organs. When investigators applied mild electrical currents to the motor projection areas of anesthetized animals, they produced specific movements depending on the site at which currents were applied. Contralateral control: stimulation to the left hemisphere leads to movements on the right side of the body and vice versa. Particular positions on the cortex correspond to particular parts of the body or locations in space. Areas of the body that we can move with great precision have a lot of cortical area devoted to them.
