Ch 5 Westmont Psych

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  1. Sensation
    the sense organs' responses to external stimuli and the transission of these responses to the brain
  2. Perception
    processing, organization, and interpretation of sensory signals; an internal representation of the stimulus
  3. Transduction
    sensory receptors produceneural impulses when they receive physical or cheical stimulation
  4. Qualitative Stimulus Info
    the differences in the types of stimuli
  5. Quantative Stimulus Info
    The speed/amount of stimuli
  6. Psychophysics
    psychological experiences with physical stimuli
  7. Absolute Threshold
    minimum intensity of a stimulus that must occur for you to notice a stimulus
  8. Difference Threshold
    minimum difference between two stimuli in order for the stimuli to be noticed as different
  9. Weber's Law
    difference threshold is based on a proportion of the original stimulus rather than a fixed amount of stimulus (i.e. bigger the original stimulus, the bigger the difference must be for you to notice)
  10. Signal Detection Theory
    detecting a stimulus requires making a subjective judgment about its presence or absence
  11. Sensory Adaptation
    decrease in sensitivity to a constant level of stimulation
  12. Gustation
    Sense of Taste
  13. Olfaction
    sense of smell
  14. olfactory epithelium
    layer of tissue within the nose with smell receptors
  15. olfactory bulb
    brain center for smell; below frontal lobes
  16. Haptic
    Sense of touch
  17. Audition
    Sense of sound perception
  18. Sound Wave
    pattern of changes in air pressure that results in the perception of sound
  19. Parts of the eye
    • Cornea: clear outer covering
    • Retina: contains photoreceptors that transduce light into neural signals
    • pupil: lets in light waves
    • iris: changes shape to let in light
  20. Rods
    retinal cells that help with night vision
  21. Cones
    retinal cells that help distinguish colors
  22. Fovea
    center of retina with dense cones
  23. lateral inhibition
    photorecptors who sense an edge/border sends this information to neighboring photorecptors
  24. Simultaneous Contrast
    optical illusion in which identical stimuli appear different when presented against different backgrounds
  25. Kinesthetic Sense
    perception of our limbs in space
  26. Vestibular Sense
    perception of balance
  27. Gestalt Principles
    • proximity: grouping close images/seeing them as the same image
    • similarity: grouping according to resemblance
    • Continuation: we interpret intersecting lines as continuous
    • Closure: completion of figures where gaps exist
  28. bottom-up processing
    pattern recognition where data is relayed from lower to higher levels of processing
  29. top-down processing
    pattern recognition where data is relayed from higher to lower levels of processing
  30. Facial Recognition
    we can more easily remember people's faces who are the same race as us
  31. binocular depth cues
    depth perception cues because we have two eyes
  32. monocular depth cues
    depth perception cues from each individual eye alone
  33. binocular disparity
    depth perception cues because there is distance between our eyes, causing each eye to see something slightly different
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Ch 5 Westmont Psych
Ch 5 flashcards for Fikes test
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