Psych 5 Flashcards
what occurs when a stimulus activates a receptor
Sensation
the organization of sensory information into meaningful experiences
Perception
relationship between sensory experiences and the physical stimuli that cause them
Psychophysics
The weakest amount of a stimulus required to produce a sensation
absolute threshold
The distance a human can see a candle flame on a clear night
30 miles away
absolute threshold for humans hearing a watch ticking
20 feet away
The smallest change in a physical stimulus that can be detected between two stimuli
difference threshold
The idea that adding three pounds to a ten-pound pack is more noticeable than adding three pounds to a 100-pound pack is contributed to?
Weber’s Law
The fact that our eyes adapt to changing light in a movie theater or that we get used to cold water as we swim is proof of
sensory adaptation
What are the 4 major parts of the eye?
cornea, lens, iris and retina
What are the bones and snail shell shaped parts of the ear called?
Hammer, Anvil, stirrup and cochlea
This decibel level is the threshold of severe pain
140 dB
Our ears are able to localize sound with a difference as small as
1/100,000
What 4 distinct senses can our skin determine?
Pain, pressure, heat, and cold
What tells you there something is wrong with your body
Pain
