Physiology (Sensation & Perception) Flashcards
According to the Young-Helmholtz _____ theory of color vision, there are three types of color receptors (cones) that are receptive to a different primary color– red, blue, or green
trichromatic
Hering’s ___ theory postulates three types of bipolar receptors: red-green, yellow-blue, and white-black
opponent-process
Because color blindness is most often due to a sex-linked recessive trait, ____ are at higher risk for color blindness.
males
Depth perception depends on a combination of binocular and monocular cues. _____, one of the binocular cues, refers to the fact that our two eyes see objects in the world from two different views, and, the closer an object, the greater the disparity of the two images
retinal disparity
with regard to olfaction, the ______ cortex is believed to be involved in the conscious perception of odors, while the _____ plays an important role in olfactory memory
amygdala
Of the senses, ______ is the only one that is not linked to a single type of stimulus
pain
According to ______ theory, the perception of pain can be blocked by special cells in the spinal cord
gate-control
Although the results of studies comparing active and passive strategies for coping with pain are inconsistent, they generally confirm that ______ strategies are associated with lower levels of reported pain and greater improvement in psychological and physical functioning
active
_____ is a rare condition in which the stimulation of one sensory modality triggers a sensation in another sensory modality
Synesthesia
Psychophysics is the study of the relationship between physical stimulus magnitudes and their corresponding psychological ______
sensations
According to ______ Law, the more intense the stimulus, the greater the increase in intensity needed to produce a just noticeable difference
Weber’s
Fechner’s Law proposes that physical stimulus changes are _____ related to their psychological sensations; and, according to ______ Law, sensation is and exponential function of stimulus intensity
logarithmically; Steven’s Power
According to __________, sensation is an exponential function of stimulus intensity.
Steven’s Power Law
A man is exhibiting synesthesia when he says that he:
experiences different musical notes as different colors
Gate control theory is useful for:
identifying methods for controlling pain