Define absolute threshold. Give an example
the level of sensory stimulation necessary for sensation to occur 50 % of the time
Ex: Vision candle light seen at 30 miles away on a clear night
Define adaptation. Give an example
our process of ignoring unimportant sensory information. It allows us to deal with environments containing large amounts of stimuli
Define sensation and when does it occur
the detection of physical energy emitted or reflected by physical objects .
It occurs when energy in the external environment or the body stimulates receptors in the sense organs
the process by which the brain organizes and interprets sensory information
What sense is dominant
vision because 70% of our sensory receptors are in our eyes
What is the key to color
Define the cornea
Define the Iris
define optic nerve
define blind spot
How do psychological factors affect the size of the pupil ?
What 3 colors make up color vision
What is color blindness?
Who is at risk and how often?
Define taste receptors
Name the 4 types of receptors
What does out body need salt for
what does our body need sugar for
What does our body need sourness and bitterness detectors for
What is perception
What 2 things does perception include
List the 5 perceptual constancies and define each
Define depth perception
What does the visual cliff experiment demonstate
How do retinal disparity and visual texture help in depth perception ?
Name the 3 perceptual clues used by Gestalt psychologists to organize information and make sense of things
define muller-lyer illusion
define reversible figure
Why do afterimage occur
Define subliminal perception
According to objective evidence, does subliminal perception work
Why do people buy tapes with subliminal messages and believe they help
define hair cells
define auditory nerve
Give an example of how sound has a strong psychological implication
Define cutaneous receptors. Include the 3 types of receptors
How does the association of an odor and event affect us ?
What are olfactory bulbs
How do animals use smell to communicate sexual interest?
Explain do humans use smell to communicate sexual interest