psych 4-3

  1. Perception
    process of creating meaningful patterns from raw sensory information.
  2. Phi Phenomenon
    apparent movement caused by flashing lights in sequence, as on theater marquees.
  3. Pitch
    auditory experience corresponding primarily to frequency of sound vibrations, resulting in a higher or lower tone.
  4. Place theory
    theory that pitch is determined by the location of greatest vibration of the basilar membrane.
  5. Pupil
    small opening in the iris through which light enters the eye.
  6. Receptor Cells
    a specialized cell that responds to a particular type of energy.
  7. Retina
    lining of the eye containing receptor cells that are sensitive to light.
  8. Retinal Disparity
    binocular distance cue based on the difference between the images cast on the two retinas when both eyes are focused on the same object.
  9. Rods
    receptor cells in the retina responsible for night vision and perception of brightness.
  10. Saturation
    the vividness or richness of a hue.
  11. Semicircle Canals
    structures in the inner ear particularly sensitive to body rotation.
  12. Sensation
    experience of sensory stimulation.
  13. Shape Constancy
    tendency to see an object as the same shape no matter what angle it is viewed from.
  14. Size Constancy
    perception of an object as the same size regardless of the distance from which it is viewed.
  15. Sound
    A psychological experience created by the brain in response to changes in air pressure that are received by the auditory system.
  16. Sound waves
    changes in pressure caused when molecules of air or fluid collide with one another and then move apart again.
  17. Stereoscoptic Vision
    combination of two retinal images to give a three-dimensional perceptual experience.
  18. Stretch Receptors
    receptors that sense muscles stretch and contraction.
  19. Stoboscopic
    apparent movement that results from flashing a series of still pictures in rapid succession, as in a motion picture.
  20. Subtractive color mixing
    the process of mixing pigments, each of which absorbs some wavelengths of light and reflects others.
  21. Taste Buds
    structures on the tongue that contain the receptor cells for taste.
  22. Texture Gradient
    monocular cue to distance and depth based on the fact that the higher on the horizontal plan an object is, the farther away it appears.
  23. Timbre
    the quality or texture of a sound caused by overtones.
  24. Top Down Processing
    perceptual analysis that emphasizes the perceiver’s expectations, concept memories, and other cognitive factors, rather than being driven by the characteristics of the stimulus.
  25. Transduction
    transformation of one form of energy into another – especially the transformation of stimulus information into nerve signals by the sense organs.
  26. Trichromatic
    Theory of color vision that all color perception derives from three different color receptors in the retina (usually red, green, and blue receptors).
  27. Trichromats
    people who have normal color vision.
  28. Vestibular Sacs
    sacs in the inner ear that are responsible for sensing gravitation and forward, backward, and vertical movement.
  29. Vestibular Sense
    sense of equilibrium and body position in space.
  30. Vestible Spectrum
    the tiny part of the electromagnetic spectrum to which our eyes are sensitive.
  31. Visual Acuity
    the ability to distinguish fine details.
  32. VNO
    location of receptors for pheromones in the roof of the basal cavity.
  33. Volley Principle
    refinement of frequency theory; receptors in ear fire in sequence, one group, then another, etc., complete pattern of firing corresponds to the frequency of sound.
  34. Wavelengths
    the different energies represented in the electromagnetic spectrum.
  35. Weber's Law
    the principle that the just noticeable difference for any given sense is a constant proportion of the stimulation being judged.
Card Set
psych 4-3