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understanding the brain.docx

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Understanding the Brain  neuroscientist someone who specializes in study of the human brain  an EEG measures electrical activity in brain eusing electrodes which are placed on the scalp. Used to detect how much brain activity is occurring  an fMRI measures blood flow to certain areas of the brain. An increased blood flow to a certain part means oxygen is being brought to it, since the area is being used (experience patient to music, have patient do math, read etc.) Parts of the Brain  brain is made of neurons which store info and communicate using electrical impulses  the cerebral cortex covers all of the brain (grey matter)  the cerebrum is the largest and most developed portion of brain, responsible for controlling memory, understanding, logic  cerebrum divided into 2 parts: left and right  left deals with math, logic, language, communication  right deals with spatial awareness, facial recognition, visual imagery  each hemisphere controls the muscle movements on the opposite side of body  hippocampus responsible for short and long term memory, and the emotional system— explains why you remember people who have affected you in some way (transfers info into memory, stores names of people/things)  frontal love controls speech and planning actions  corpus callosum connects the right and left hemispheres  temporal lobe analyzes sound to make sense of speech  amygdale—two almond shaped clusters regulating how emotion can affect memory and creating “fight or flight” response Perception  perception is a person’s selecting, organizing, and interpreting of our senses  filling in the gaps—mind assumes missing info when the info given to brain isn’t complete  perceptual constancy—even though out view of an object changes as we move, the brain recognizes it as unchanged (as you move closer to object, becomes bigger but brain knows it’s same size)  perceptual sets—the tendency to perceive one thing and not another. Perceptual sets are influenced by our experiences a
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