Exam 2 Flashcards
(23 cards)
Sensory receptors
specialzied neurons that respodn to specific types of stimuli
Just noticable difference
the mininum difference in stimuli required to detect a change or a difference betw
the minimum amount of difference that must be present for the stimulus to be detected 50 % away. at night most eyes can detect a light x amount of miles away
Absolute threshold
Top down perception
perceptions based on knowledge, known experiences, and thoughts.
Bottom down perception
perceptions based on sensory input. just what you see and can differ widely depending on different senses
you get used to some things where your sensors don’t pick up them anymore
Sensory adaptation
when your focused on something really hard you can ignore stuff
intentital
larger amplitutes appear more
visible.
what contains photoreceptors
Fovea
colored part of the eye
iris
carries the visual information back to nerve cells in the brian
optic nerve
where no infomation exists in the visual system
Blind spot
linear perspective
when two parrallel lines seem to converge
Binolcular perspective
frequency is coded by the activity level of a sneosry neuron
Temproal Theory
the base repsond to high frequencies and the tip responds to low frequencies
place theory
a protruding cell from your tongue. has life cycle of 10 days to 2 weeks
Taste buds
small hair liek receptors that pick up odors
Olfactory receptor celss
process of our odors being picked up by smell.
Transduction
temperature perception
thermoception
signal for potential harm and pain.
Nocioceotuib. there is secondary and negative reception
the idea that things are close are grouped together
Gestalt principle of proximity
phycological evidence that our mind makes to use
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