Below one's threshold for conscious awareness
subliminal
define Weber's Law
For a difference to be perceived, two stimuli must differ by a certain percentage, not constant
These facilitate black and white vision and peripheral vision
Rods
The vestibular sense
the sense of body movement and position found in the inner ear
Absolute Threshold
Minimum stimulus needed for 50% of the people to detect it.
what is the coiled tube in the inner ear
Cochlea
Name two gestalt principals of perceptual organization
Proximity, similarity, closure, or continuity
where is the primary visual cortex?
Occipital lobe
The theory that the spinal cord contains a "gate" that allows or blocks pain signals
Gate Control Theory
the place in the retina where the optic nerve exits
Blind spot
The process of turning stimulus energy into neural impulses
Transduction
A mental predisposition to to perceive one thing and not another
Perceptual set
Name a binocular cue for perception
Retinal Disparity
predicting the ability to hear a phone over loud music
Signal detection theory
Sensory Adaptation
Diminished sensitivity as a consequence of constant stimulation
These transfer sound information to the oval window
Bones of the middle ear (hammer, incus, and stapes, collectively known as the ossicle bones
The intensity at which a sound becomes audible for a given individual is called?
Response threshold
The most common form of color blindness
deficiencies in the red green system
What is the opponent color for red?
green
the change in the curvature of your lens.
accomodation
What is the sequence that auditory stimulus travels to the auditory nerve?
Auditory canal, eardrum, ossicles, oval window, and cochlea.
This explains perceptual organization
Gestalt principals
What's the next step after the cones and rods?
neural signals are sent to the bipolar cells
the nerve cells in the brain that respond to specific features
feature detectors
Phi Phenomena
when a pair of lights flash in quick succession seems to be one light moving