MECHANICS CERTIFICATION 2026
TEST BANK TESTED QUESTIONS
CORRECT ANSWERS
◉ Environmental Flow. Answer: is the alteration of the environment and
your relationship to the objects in it, conveyed by the senses, around you
as you move through it. A good understanding of the flow of the
environment allows for accurate spatial updating.
◉ What is the probabilistic model (aka the Bayes-Ian Model, one of 3
intersensory integration model)?. Answer: suggests that all available
perceptual data about a thing or the environment is taken in and
weighted according to reliability and usefulness.
◉ What is the Dominance Model ( intersensory integration model)?.
Answer: one sensory modality prevails, and input from the other senses
is irrelevant
◉ What is the Equivalency Model ( intersensory integration model)?.
Answer: states that information is equally detectable by all appropriate
senses.
◉ What's general-purpose sensory substitution?. Answer: Sensory
substitution involves the idea that information normally available to one
sense can be, assuming that sense is impaired or gone, be gained through
use of another sense.
, ◉ Examples of sensory substitution. Answer: The blind cane traveler
uses touch and hearing via the long cane to obtain information others get
visually. The sighted deaf person uses the sense of sight to acquire
information usually acquired aurally.
◉ What is Signal Detection Theory?. Answer: Theory that explains
perceptual error in one of two ways. One is lack of perceptual
sensitivity. The other is a deficiency in the perceiver's criteria for
judging what he or she perceives.
◉ What is Constant Error?. Answer: consistently making the same kind
of mistake, usually a localization error. E.G. consistently misjudging
distance to an object or the direction of a sensory source.
◉ What is Variable Error?. Answer: When the mistake is inconsistent,
veering one way and sometimes the other. Variable errors are harder to
correct because the characteristics of the mistake can differ from
occurrence to occurrence.
◉ How does accuracy in both movement and technique impact
perception?. Answer: It allows for the most accurate perception of the
environment ( Ex. Correct cane technique will allow detecting of
obstacles and drop-offs. Correct dog guide follow position will enable
correct detection of sidewalk curves and obstacle avoidance.)
◉ What role does context have in developing and reinforcing perceptual
skill?. Answer: Context allows the traveler to decide which pieces of
TEST BANK TESTED QUESTIONS
CORRECT ANSWERS
◉ Environmental Flow. Answer: is the alteration of the environment and
your relationship to the objects in it, conveyed by the senses, around you
as you move through it. A good understanding of the flow of the
environment allows for accurate spatial updating.
◉ What is the probabilistic model (aka the Bayes-Ian Model, one of 3
intersensory integration model)?. Answer: suggests that all available
perceptual data about a thing or the environment is taken in and
weighted according to reliability and usefulness.
◉ What is the Dominance Model ( intersensory integration model)?.
Answer: one sensory modality prevails, and input from the other senses
is irrelevant
◉ What is the Equivalency Model ( intersensory integration model)?.
Answer: states that information is equally detectable by all appropriate
senses.
◉ What's general-purpose sensory substitution?. Answer: Sensory
substitution involves the idea that information normally available to one
sense can be, assuming that sense is impaired or gone, be gained through
use of another sense.
, ◉ Examples of sensory substitution. Answer: The blind cane traveler
uses touch and hearing via the long cane to obtain information others get
visually. The sighted deaf person uses the sense of sight to acquire
information usually acquired aurally.
◉ What is Signal Detection Theory?. Answer: Theory that explains
perceptual error in one of two ways. One is lack of perceptual
sensitivity. The other is a deficiency in the perceiver's criteria for
judging what he or she perceives.
◉ What is Constant Error?. Answer: consistently making the same kind
of mistake, usually a localization error. E.G. consistently misjudging
distance to an object or the direction of a sensory source.
◉ What is Variable Error?. Answer: When the mistake is inconsistent,
veering one way and sometimes the other. Variable errors are harder to
correct because the characteristics of the mistake can differ from
occurrence to occurrence.
◉ How does accuracy in both movement and technique impact
perception?. Answer: It allows for the most accurate perception of the
environment ( Ex. Correct cane technique will allow detecting of
obstacles and drop-offs. Correct dog guide follow position will enable
correct detection of sidewalk curves and obstacle avoidance.)
◉ What role does context have in developing and reinforcing perceptual
skill?. Answer: Context allows the traveler to decide which pieces of
