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Psych 120 Perception and Sensation

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  • Why might inattentional blindness be dangerous while driving?
    Drivers may fail to see something while focusing on something else.
  • What is the ability to focus on a specific stimulus while ignoring others?
    Selective attention
  • What is the smallest difference between two stimuli that can be reliably detected?
    Difference threshold
  • Which sense does not go through the thalamus before reaching the cortex?
    Smell
  • What is it called when you stop noticing a stimulus after repeated exposure?
    Sensory adaptation
  • How can cultural experiences influence perception?
    They shape how we interpret images and depth cues
  • What is it called when we fail to notice an object because our attention is focused elsewhere?
    Inattentional blindness
  • Which principle states that the just noticable difference is a constant proportion of the original stimulus?
    Weber's Law
  • What is the process of detecting and encoding stimulus energies from the environment?
    Sensation
  • Which part of the eye controls the amount of light that enters?
    Iris
  • Which of the following explains why a person might not notice a background song playing until they start actively listening to it?
    Selective attention
  • Which theory explains how we detect stimuli amid background noise?
    Signal detection theory
  • Which factor influences perception and can lead people to see what they expect rather than what is actually there?
    Perceptual set
  • What is the minimum amount of stimulation needed to detect a stimulus 50% of the time?
    Absolute treshold
  • Which of the following processing relies on experiences and expectations to interpret sensory information?
    Top-down processing
  • Why do emergency vehicle sirens need to be loud?
    To exceed the absolute threshold of hearing
  • Describe response bias?
    Responding to a stimulus based on expectations
  • A person with damage to their visual cortex can still react to visual stimuli without consciously perceiving them. What is this phenomenon called?
    Blindsight
  • Which of the following explains why optical illusions trick our brain?
    Perceptual set
  • Which process organizes and interprets sensory input?
    Perception
  • Which of the following describes a situation where someone fails to notice a change in the their environment?
    Change blindness
  • Which concept explains why someone might not realize how bright a room is until they leave and come back?
    Sensory adaptation
  • Which part of the brain is primarily responsible for processing visual information?
    Occipital lobe