Unit 3

• Absolute threshold is the detection of signals 50% of the time
• The difference threshold is the ability to see a change (Weber's Law)
• Signal detection theory says detection depends on expectations
• Sensory adaptation is diminished sensitivity due to constant stimuli
• Sensory habitation is diminished sensitivity due to regular exposure
• Perceptual set is the tendency to see something as part of a group of things that are similar
• Intentional blindness is the failure to notice something added
• change blindness is the failure to notice a chang in the scene
• Feature detectors are specialized cells that see motion and shape in the occipital lobe
• Trichromatic color theory says there are 3 cones for receiving color
• Opponent processing theory says complimentary colors are processed by ganglion cells
• Visual capture is when the visual system takes over other senses
• Phi Phenomenon occurs when adjacent lights blink on/off to look like they're moving
• Place theory occurs when hair cells bend to determine high pitches
• Frequency theory is the rate which action potentials are sent to determine low pitches
• Gate control theory is when the spin determines how much pain we feel
• Smell goes through the temporal lobes and amygdala
• KInstetic is the sense of body position