The Nervous System

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The Nervous System
2011-04-18 21:04:47

Psychology Chapter 3
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  1. all nerve cells in the body that are not part of the central nervous system. Includes somatic and autonomic nervous systems
    Peripheral Nervous System
  2. part of the peripheral nervous system which sends information to and from muscles, joints and skin
    somatic system
  3. system in the peripheral nervous system which includes internal organs and glands
    Autonomic system
  4. fight or flight reaction acts when we believe we are threatened

    stress causes this reaction
    sympathetic nervous system
  5. the rest and digest part of autonomic nervous system

    changes the body back to a its calm state
    parasympathetic nervous system
  6. the brain and spinal cord

    spinal cord= "go between" between PNS and CNS
    also has some basic motor movements- doesn't relay messages to brain but can be overidden
    Central Nervous System (CNS)
  7. connects the spinal cord to the brain- it is home to the basic programs of survival
    ex: breathing, swallowing, vomiting, unrinating, mating

    controls the automatic functions of the body
  8. Lower/middle portion of the brainstem
    it is associated with sleep/wake/consciousness/alertness

    Damage= coma
    reticular formation
  9. part of the brainstem which controls heartbeat, circulation, respiration

    damage= death
  10. controls balance, coordination, graceful movement, motor learnining

    damage= loss of motor coordination "ataxia"

    maybe associated with "simulation"
  11. the sensory weigh-station, all sensory info except smell goes through ____ to the cortex

    restricts senses during sleep
  12. the master regulator of the brain, projects to whole brain, regulates internal bodily functions
    4 Fs: fighting, fleeing, feeding, fucking
  13. memory
  14. emotion, sensory input before cortex

    allows us to have preferences, emotion markers--> helps us make decisions easier based on preferences
  15. the outer layer of brain tissue which forms the surface of the brain
    cerebral cortex
  16. bridge of millions of axons which connects the two hemispheres of the brain so information can flow between
    corpus callosum
  17. VISION
    Primary visual cortex- spatial relations
    Secondary visual cortex- color, form, motion
    Occipital Lobe
  18. deals with color and form
    geniculostriate system
  19. deals with motion and location
  20. sensory association, touch, has left and right lobe
    parietal lobe
  21. part of parietal lobe associated with touch, integration of sensory info--> projected to the frontal lobe
    primary somatosensory cortex
  22. recognize concurrent sensory signals as a single object

    takes places in the primary somatosensory cortex
    corss-model matching
  23. to be able to mentally "view" objects in different perspectives

    takes place in primary somatosensory cortex
    mental manipulation
  24. if one lobe of the parietal part of brain is damaged
  25. a distorted representation of the entire body

    "little man"
    somatosensory homonucleus
  26. the lobe associated with auditory and categorization

    needed for spoken language comprehension
    temporal lobes
  27. part of temporal lobe associated with hearing

    also facial recognition
    primary auditory cortex
  28. intersection of the temporal and occipital lobes associated with facieal reconition
    fusiform face area
  29. lose ability to categorize the sounds of language

    cannot understand language or speak (coordinate right sounds)
    Weirnecke's aphasia
  30. part of brain associated with motor, sensory, planning
    it is the last part of the brain to fully develop
    frontal lobe
  31. part of frontal lobe which controls fine movements like the face and fingers
    motor cortex
  32. cannot produce language but can understand it

    in the left frontal lobe
    Broca's aphasia
  33. part of frontal lobe associated with planning, directing/maintaining attention

    rational activity
    prefrontal lobe
  34. part of the prefrontal lobe, controls social functioning, and impulse control
  35. the ability to change over time
    brains have it
  36. a specific time when certain processes must develop
    critical periods
  37. subjective awareness of experience
  38. possibility of having two distinct conscious minds

    the corpus callosum is severed
    split brain
  39. left controls the right and vice versa
    cotralateral organization
  40. hemisphere of brain which specializes in spoken language/grammar and motor control of the right side of the body
  41. hemisphere of the brain which specializes in spatial relations, emotion and motor control of the left side of the body
  42. lack of speech
  43. lack of emotion/ variation of tone in speech
  44. conversion of stimulus (light, sound, etc) to neural impulses at receptor sights
  45. interpreting the stimuli, applying meaning to them

    can be affected by learning
  46. process of sensory signals being relayed from lower sensory to higher perception
    bottom up
  47. prior knowledge, expectation--> what we percive in context
    top down
  48. we have limited sensory capacity- some sensations screened to let into awareness
    Filter Theory