INDV 101 structure Study Guide 3

INDV 101 structure Study Guide 3 - The Brain How do we...

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The Brain How do we study brain - function relations? By using different types of scans, PET CAT etc. What are neural networks? When neurons cluster in groups For each structure know its location and primary functions Brainstem- control’s heart beat and breathing SEE PICTURE Hypothalamus- controls hunger, thirst, sex drive. Center of brain SEE PICTURE Thalamus- Controls the body’s senses. Located above the Hypothalamus Cerebellum- lower back part of spinal cord. Judge time, modulate our emotions, and discriminate sounds and textures Limbic system- hypothalamus, pituitary gland, amygdale, hippocampus Corpus callosum- the large band of neural fibers connecting the two brain hemispheres and carrying messages between them. Hippocampus- a neural center that is located in the limbic system and helps process explicit memories for storage Amygdala- two lima bean-sized neural clusters that are components of the limbic system and are linked to emotion. Frontal lobe- the portion of the cerebral cortex lying just behind the forehead; involved in speaking and muscle movements and in making plans and judgments. Parietal- the portion of the cerebral cortex lying at the top of the head and toward the rear; receives sensory input for touch and body position. Temporal- the portion of the cerebral cortex lying roughly above the ears; includes the auditory areas, each receiving information primarily from the opposite ear. Occipital lobes- the portion of the cerebral cortex lying at the back of the head; includes the visual areas, each receiving information from the opposite visual field. Visual cortex- receives written words information as visual. Lower back brain Auditory cortex- transforms visual in to written. In front of the visual Motor cortex- Words are pronounces. Sliver up the middle brain Sensory cortex (homunculus)- processes body sensations frontal lobe Left hemisphere- speaks or calculates, activity increases Right hemisphere- perceptual task, for example, brain waves, bloodflow, and glucose consumption Contralateral control- the example of the guy who’s brain wasn’t connected. Split brain research - be able to predict results if given specifics of task Brain plasticity- the brain's capacity for modification, as evident in brain reorganization following damage (especially in children) and in experiments on the effects of experience on brain development. Consciousness What is consciousness? Being in an altered state of mind. What are altered states of consciousness? Types of personality disorders, Daydreaming, sleeping, drug induced, meditative, hypnosis, near-death experiences What are circadian rhythms s: biological clock; cyclical body rhythms, 25 hour cycle, 9- 10 hours is best for most people-should wake up feeling rested Sleep deprivations- difficulty studying, diminished productivity, tendency to make mistakes, irritability, and fatigue
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EEG: trace electrical activity electrodes can be placed outside the brain (humans) or inside brain (with animals)
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INDV 101 structure Study Guide 3 - The Brain How do we...

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