sensation perception

  1. sensation and perception
    • s: detection of physical energy by sense organs which then send info to the brain
    • p: brains interpretation of raw sensory input
  2. transduction, sense receptor, absolute hreshold, just noticable difference
    • transdction: process of converting an external energy or substance into neural activity
    • absolute threshold: lowest level of a stimulus need for the nervous system to detect a change 50% of the time
    • JND: the smallest change in the intensity of a stimulus that we cn detect
  3. signal detection theory
    Selective attention
    • SDT: psychophysical theory which describes the detection of stimuli under conditions of uncertainty
    • SA: process of selecting one sensory channel and ignoring or minimising others
  4. cornea 
    lens accomodation
    • Cornea: part of the eye containing transparent cells that focus light on the retina
    • lens: part of the eye that changes curvature to keep images in focus
    • Accomodation: changing the shape of the lens to focus on the objects near or far
  5. retina fovea acuity, rods cones blind spot
    • retina: membrane at the back of the eye responsible for converting light into neural activity
    • Fovea: central portion of the retiina
    • acuity: sharpness of vision
    • rods: receptor cells in the retina allowing us to see in low levels of light
    • cones: receptor cells in the retina allowing us to see in colour
    • blind spot: aprt of the visual field we cannot see because of an absence of rods and cones
  6. trichromatic theory
    colour blindness
    • tri chromatic theory: idea that colour is bsaed on our sensitivity to 3 diff colours
    • Colour blindness: inability to see some or all colours
  7. audition, timbre
    • audition: ability to hear
    • timbre:complexity or quality of sound that makes musical instruments, human voices and other sources sound unique
  8. cochlea, organ of corti, basilar membrane
    • cochlea: bony spiral shaoed organ used for hearing
    • organ of corti: tissue sontaining the hair cells necessary for hearing
    • basilar membrane: membrane supporting the organ of corti and hair cells in the cochlea
  9. olfaction
    • O: sense of smell
    • G: sense of taste
  10. somatosensory
    vestibular sense
    • somatosensory: sense of touch, temp and pain
    • Proprioception: sense of body position
    • vestibular sense: our sense of equilibrium or balance
  11. perceptual constancy
    the process by which we perceive stimuli consistently across varied conditions
  12. depth perception
    monocular depth cues 
    binocular depth cues
    • Depth perception: ability to judge distance and 3d relations
    • Monocular: stimuli that enable us to judge depth using one eye
    • Bi: stimuli that enable us to judge depth using both eyes
Card Set
sensation perception
sensation perception