2-sensation and perception Flashcards
kinanesthesia
The sense that detects movement of the muscles, tendons, and joints.
proprioception
body position
what are THE SENSES (10)
- temperature
- balance
- kinanesthesia (movement)
- pain
- proprioception (body position)
- sight
- smell
- hearing
- touch
- taste
TRANSDUCTION
TURNING PHYSIAL STIMULUS INTO ACTION POTENTIAL
sensation
when sensory information is detected by a sensory receptor
Sensory receptors
specialized neurons that respond to specific types of stimuli
ABSOLUTE THRESHOLD
the level of a stimulus at which the stimulus can be detected 50% of the times it is presented
JUST NOTICEABABLE DIFFERENCE
how much difference does there need to be in a stimulus for the difference to be detected (contextually bound!!—fixed ratio of the original stimulus)
SUBLIMINAL
when transduction happens, but no conscious processing—effects are overstated
Weber’s Law
the difference threshold is a constant fraction o the original stimulus
PERCEPTION
how information is organized, interpreted, and consciously experienced
bottom-up processing
- how perceptions are built from sensory input
- sensation!!!
- physical process
top-down processing
- available knowledge, previous experience, thoughts influence how we interpret information
- perception!
- psychological process’
sensory adaptation
-
perception dulls after a long exposure to a stimulus
- sensory systems respond more strongly to changes in stimulation than to constant stimulation
inattentional blindness
we often miss information if our attention is placed elsewhere
signal detection theory
ability to identify a stimulus when it is embedded in a distracting background
