Quiz 1 Flashcards
according to signal detection theory, if someone’s criterion shifts to be more strict (a higher threshold for accepting something as signal) but their sensitivity does not change, which of the following changes in behavior will occur:
- they will have MORE overall hits
- they will have FEWER correct rejections
- they will have FEWER misses
- they will have FEWER false alarms
they will have FEWER false alarms
what statement is TRUE about the relationship between sensation and perception?
- sensation and perception are strongly related, but are not exactly the same
- sensation is the interpretation of a perceptual experience
- sensation and perception are generally the same thing
- sensation and perception are not at all related
- sensation and perception are strongly related, but are not exactly the same
raven is testing her ability to detect changes in weight. she finds that, when she has nothing on her hands, it takes at least 1 ounce of weight for her to be able to perceive any added weight. however, when she’s already holding 1 pound, it takes 3 ounces for her to notice a difference. which of the following statements is true according to threshold models of perception?
- her absolute threshold is 1 ounce of weight
- her JND doesn’t change with added weight
- her absolute threshold is 3 ounces of weight
- her absolute threshold changes with added weight
- her absolute threshold is 1 ounce of weight
fatima is a science researcher who wants to know about WHERE in the brain particular types of visual stimuli are processed. she doesn’t care that much about the time course of this visual process. which of the following imaging methods would be the WORST for her to answer her question?
- MEG
- fMRI
- PET
- EEG
EEG
which part of the eye, when healthy and undamaged, TRANSMITS light?
- the iris
- the lens
- the retina
- the cornea
the cornea
which of the following parts of the eye DOES NOT have photoreceptors?
- fovea
- retina
- macula
- choroid
choroid
which of the following is FALSE about the fovea?
- it has the highest density of rods
- it has relatively few ganglion cells
- it is part of the retina
- it is the focal point of vision
it has the highest density of rods
what type of retinal cells make connections with bipolar cells and ganglion cells?
- amacrine cells
- horizontal cells
- photoreceptors
- midget cells
amacrine cells
which stimulus would optimally activate an ON-center ganglion cell?
- a shadow in the center of the receptive field
- a ring of light covering the surround of the receptive field
- a spot of light in the center of the receptive field
- a large spot of light covering both the center and surround portions of the receptive field
- a spot of light in the center of the receptive field
which statement is TRUE about the electrochemical communication of photoreceptors?
- they communicate with bipolar cells via graded potentials
- they communicate with bipolar cells via action potentials
- they communicate with ganglion cells via action potentials
- they communicate with ganglion cells via graded potentials
- they communicate with bipolar cells via graded potentials
