psy.txt

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Author:
Jessica0708
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13665
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psy.txt
Updated:
2010-04-09 00:55:27
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Psy Mod 12 15
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Mod 12-15
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  1. What is a process through which the senses detect visual, auditory, and other sensory stimuli and transmit them to the brain?
    Sensation
  2. What are the 5 basic senses?
    Sight, sound, taste, touch, and feelings
  3. What is a process by which sensory information is actively organized and interpreted by the brain?
    Perception
  4. What is a humans superior ability?
    Perception
  5. What organ provides most of the information on which the brain feeds?
    The eye
  6. What is the tough transparent, protective outer layer covering the front of the eye that bends rays inward through the pupil?
    The cornea
  7. What is the small dark opening in the center of the iris that responds to emotion and light?
    The pupil
  8. What is the circular colored part of the eye?
    The iris
  9. When does the iris contract?
    In very bright light
  10. When does the iris dilate?
    In the dark, when we are frightened, aroused, or engaged in mental activity
  11. What is composed of many thin layer and looks like a transparent disc?
    The lens
  12. What is it called when the lens becomes more spherical and bulges in the center as it focuses on objects?
    Accommodation
  13. What is the thin layer of tissue about the size of a postage stamp that contains all the sensory receptors for vision?
    The Retina
  14. What gives us the most detailed information about our world?
    Sight
  15. What is the tiny hole in which light rays enter the eye?
    Pupil
  16. An upside down, 2 dimensional flat image is projected on to a screen called the?
    Retina
  17. Receptors on the retina called _________, change the picture into electrical pulses. These are sent along the ________to your brain.
    rods and cones, optic nerve
  18. Where is the place in which there are no rods or cones where the optic nerve leaves the eye?
    blind spot
  19. What makes the objects you look at appear focused and not blurry?
    the lens
  20. What are the light receptive receptors at the back of the retina called?
    Rods and cones
  21. How many rods are in each retina?
    120 million
  22. How many cones are in each retina?
    6
  23. What enables us to see color and fine detail?
    Cones
  24. What three colors are cones sensitive too?
    red,green, and blue
  25. How many different types of cones are there?
    3
  26. What two colors can color blind people not tell the differece between?
    red and green
  27. What kind of light do rods work best in?
    Dim
  28. What colors can rods detect?
    None
  29. Is color vision present in virually all mammals?
    yes
  30. What are visual signals called?
    Cues
  31. What is determined by the number of cycles completed a sound wave in one second?
    Frequency
  32. What are used to measure frequency?
    Hertz
  33. What is determined by the frequency(ranging from high to low)?
    Pitch
  34. What is another word for loudness?
    Amplitude
  35. What happens as sound travels?
    Its amplitude gets smaller resulting in a quieter sound
  36. Amplitude is measured in what?
    Decibels
  37. What is the softest sound anyone can hear?
    0 Decibels
  38. What are vibrations in the bone and skull?
    Bone conductions
  39. What is the ability to detect odor?
    Smell
  40. At what age is the odor cues memories formed?
    6-10 but then decreases steadily
  41. How many odors can we sense and distinguish?
    10,000
  42. How is each persons unique scent determind?
    genetics
  43. What is the sense of smell?
    Olfaction
  44. You can not smell something unless it is passed from a?
    Liquid or solid to a gaseous state
  45. What are the 2 one inch square patches of tissue?
    Olfactory epithelium
  46. How many Olfactory neurons are on each Olfactory epithelium?
    10 million
  47. What are the receptors for smell?
    olfactory neurons
  48. How long do olfactory neurons live?
    60 days
  49. What are the four basic smells?
    fragrant,fresh,spicy,putrid
  50. What is the sense of taste?
    Gustation
  51. What are the four basic taste?
    Sweet, Salty, Sour, Bitter
  52. What is the suggested 5th taste?
    umami
  53. What are the small bumps on the tongue called?
    papillae
  54. What are composed of 60-100 receptor cells which resemble the petal of a flower?
    taste buds
  55. How long do taste buds live?
    10 days
  56. Where are most of your taste buds located?
    tip of the tongue
  57. Where are there no taste buds?
    center of tongue
  58. What is the largest organ of your body?
    skin
  59. What part of your body contains the most receptors?
    finger tip
  60. What is information conveyed to the brain when an object touches and depreses the skin, stimulating one or more of the several distinct types of receptors found in the nerve endings?
    Tactile
  61. What is vitally essential to the human growth and development?
    Touch
  62. What happened in the 1980's to premature infants who were massaged for 15 minutes three times a day?
    They gained 47% faster than infants who received only intensive care and left 6 days sooner. At 18 months they were also scoring higher on test of motor and mental abilities.
  63. What is the process by which sensory information is organized and interpreted by the brain?
    perception
  64. What do humans percieve in?
    Melodies

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