Psych 1020 Final Exam with Complete
Solutions
Synesthesia - ANS-perceptual or cognitive activities (eg listening to music, reading)
trigger exceptional experiences (eg colour, taste)
sensation - ANS-simple stimulation of a sense organ
Perception - ANS-The selection, organization, and interpretation of sensory input
threshold - ANS-a dividing point between energy levels that do and do not have a
detectable effect
absolute threshold - ANS-the minimum stimulation needed to detect a particular
stimulus 50 percent of the time
just noticeable difference - ANS-smallest difference in amount of stimulation that
specific sense can detect
Weber's Law - ANS-The size of a just noticeable difference is a constant proportion of
the size of the initial stimulus.
signal detection theory - ANS-The detection of stimuli involves decision processes as
well as sensory processes, which are both influenced by a variety of factors besides
stimulus intensity.
subliminal perception - ANS-the registration of sensory input without conscious
awareness
sensory adaptation - ANS-a gradual decline in sensitivity to prolonged stimulation
lens - ANS-The transparent eye structure that focuses the light rays falling on the retina.
near sightedness - ANS-a condition in which nearby objects are seen more clearly than
distant objects because distant objects focus in front of the retina
far sightedness - ANS-a condition in which faraway objects are seen more clearly than
near objects because the image of near objects is focused behind the retina
pupil - ANS-the opening in the iris that regulates the amount of light passing into the
rear chamber of the eye
, Retina - ANS-The neural tissue lining the inside back surface of the eye; it absorbs light,
processes images, and sends visual information to the brain.
optic disk - ANS-A hole in the retina where the optic nerve fibers exit the eye.
cones - ANS-Specialized visual receptors that play a key role in daylight vision and
color vision.
fovea - ANS-A tiny spot in the center of the retina that contains only cones; visual acuity
is greatest at this spot.
rods - ANS-Specialized visual receptors that play a key role in night vision and
peripheral vision.
dark adaptation - ANS-The process in which the eyes become more sensitive to light in
low illumination.
light adaptation - ANS-the process whereby the eyes become less sensitive to light in
high illumination
receptive field - ANS-the retinal area that, when stimulated, affects the firing of that cell.
Multiple rods and cones within an area of the retina will send information to a single
visual cell.
optic chiasm - ANS-the point at which the optic nerves from the inside half of each eye
cross over and then project to the opposite half of the brain
feature detectors - ANS-neurons that respond selectively to very specific features of
more complex stimuli
visual agrosia - ANS-inability to recognize objects
prosopognosia - ANS-inability to recognize faces
subtractive color mixing - ANS-removing some wavelengths of light, leaving less light
than was originally there
sleep restriction - ANS-trigger hormonal changes that increase hunger
insomnia - ANS-chronic problems in getting adequate sleep
sleep apnea - ANS-frequent, reflexive gasping for air that awakens a person and
disrupts sleep
Solutions
Synesthesia - ANS-perceptual or cognitive activities (eg listening to music, reading)
trigger exceptional experiences (eg colour, taste)
sensation - ANS-simple stimulation of a sense organ
Perception - ANS-The selection, organization, and interpretation of sensory input
threshold - ANS-a dividing point between energy levels that do and do not have a
detectable effect
absolute threshold - ANS-the minimum stimulation needed to detect a particular
stimulus 50 percent of the time
just noticeable difference - ANS-smallest difference in amount of stimulation that
specific sense can detect
Weber's Law - ANS-The size of a just noticeable difference is a constant proportion of
the size of the initial stimulus.
signal detection theory - ANS-The detection of stimuli involves decision processes as
well as sensory processes, which are both influenced by a variety of factors besides
stimulus intensity.
subliminal perception - ANS-the registration of sensory input without conscious
awareness
sensory adaptation - ANS-a gradual decline in sensitivity to prolonged stimulation
lens - ANS-The transparent eye structure that focuses the light rays falling on the retina.
near sightedness - ANS-a condition in which nearby objects are seen more clearly than
distant objects because distant objects focus in front of the retina
far sightedness - ANS-a condition in which faraway objects are seen more clearly than
near objects because the image of near objects is focused behind the retina
pupil - ANS-the opening in the iris that regulates the amount of light passing into the
rear chamber of the eye
, Retina - ANS-The neural tissue lining the inside back surface of the eye; it absorbs light,
processes images, and sends visual information to the brain.
optic disk - ANS-A hole in the retina where the optic nerve fibers exit the eye.
cones - ANS-Specialized visual receptors that play a key role in daylight vision and
color vision.
fovea - ANS-A tiny spot in the center of the retina that contains only cones; visual acuity
is greatest at this spot.
rods - ANS-Specialized visual receptors that play a key role in night vision and
peripheral vision.
dark adaptation - ANS-The process in which the eyes become more sensitive to light in
low illumination.
light adaptation - ANS-the process whereby the eyes become less sensitive to light in
high illumination
receptive field - ANS-the retinal area that, when stimulated, affects the firing of that cell.
Multiple rods and cones within an area of the retina will send information to a single
visual cell.
optic chiasm - ANS-the point at which the optic nerves from the inside half of each eye
cross over and then project to the opposite half of the brain
feature detectors - ANS-neurons that respond selectively to very specific features of
more complex stimuli
visual agrosia - ANS-inability to recognize objects
prosopognosia - ANS-inability to recognize faces
subtractive color mixing - ANS-removing some wavelengths of light, leaving less light
than was originally there
sleep restriction - ANS-trigger hormonal changes that increase hunger
insomnia - ANS-chronic problems in getting adequate sleep
sleep apnea - ANS-frequent, reflexive gasping for air that awakens a person and
disrupts sleep
