psychology test 1 biology of the mind

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psychology test 1 biology of the mind
2012-09-15 14:35:11
biological section amy jennings psychology test biology mind

biology of the mind, biological part of psychology
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  1. biological psychology
    the study of how the brain effects behavior
  2. neuron-
    individual *nerve cells that form the basic structure of the nervous system*
  3. 3 types of neurons
    • sensory neurons (senses)
    • motor neurons (movement)
    • inter neurons (they connect everything)
  4. Parts of a Neuron
    • cell body- support center of the neuron
    • dendrites- reciving portion of neuron
    • axon- sending portion of the neuron
    • myelin sheath- fatty covering of axon that insulate the neuron signal; speeds up messages through neurons
  5. synapse-
    a junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron
  6. what is the nervous system?
    what are the 2 main parts of the nervous system?
    • nervous system- the body's speedy electrochemical communication network
    • central nervous system- (CNS) brain spinal cord
    • peripheral nervous system- (PNS) everything else; the sensory and motor neurons that connect the CNS to the rest of the body
  7. the endocrine system
    • body's slow chemical communication system. communication is carred out by hormones synthesized by a set of glands
    • hormones*- the chemicals secreted by the endocrine glands that produce physical or psychological changes
  8. the forebrain
    • cerebrum- (forebrain) forward part of the brain, highly developed, controls intellectual abilities
    • cerebral cortex- the largest component of the forebrain, responsile for higher brain function like ability to think, talk, reason; 4 lobes
  9. 4 lobes of cerebral cortex *
    • frontal lobe- responsible for motor function, language, memory. helps with descision making
    • parietal lobe- integrates vision, touch and motor information. helps with perception of space
    • temporal lobe- hearing, langauge and comprehension, some memories
    • occipital lobe- vision
  10. brainstem
    • thalamus- brains sensory switchboard. processes sensory information, sensory gateway to the cerebral cortex
    • medulla- reflexes, and vital fuctions like swallowing, heartbeat, breathing
  11. the brain and emotion
    • limbic system- emotional center of the brain. deals with fear, agression, arousal, etc also smell, motivation, and memory
    • amygdala- linked to emotions of fear and anger
    • hippocampus**- a portion of the brain that plays a role in spatial memory and fear conditioning. if damaged, problems forming new memories
  12. hemispheres
    • left hemisphere controls right side of the body
    • governs ability to use language, speech comprehension, reading, writing, math, facial expressions and motion detection
    • right hemisphere controls left side of body
    • simple speech, simple writing, tone of voice, perceptual gouping, face perception