MCAT Behavioural Sciences Study
Practice Questions with Latest
2025-2026 Correct Answers
GRADED A+
1. just noticeable difference jnd
- ANS - minimum difference in magnitude between two
stimuli before one can perceive this difference
2. Weber's law
- ANS - there is a constant ratio between the change in
stimulus magnitude needed to produce a jnd (higher
stimulus will need a larger difference to produce a jnd)
3. Signal detection theory
- ANS - changes in out perception of the sam stimuli
depending on both internal and external context (how
loud would someone need to yell your name in a crowd
for you to hear their name?)
,4. response bias
- ANS - subjects respond in a certain way due to non
sensory factors
5. duplexity (duplicity theory of vision)
- ANS - retina contain two kinds of photoreceptores: those
specialized for light and dark detection and those
specialized for color section
6. cones
- ANS - used for color vision and sense fine details- most
effective in bright light and comes in 3 forms (blue, red,
green)
7. rods
- ANS - more functional and only allow sensation of light
and dark because they all contain a single pigment
(rhodopsin)- low sensitivity but allow night vision (more
rods than cones)
8. fovea
- ANS - center most part of the eye and only contains
cones
,9. optic chiasm
- ANS - fiber from the nasal half of each rating cross paths
10. parallel processing
- ANS - ability to simultaneously analyze and combine
information regarding color, shape, and motion
11. two point threshold
- ANS - minimum distance necessary between two points
of stimulation on the skin such that the points will be felt
as two distinct stimuli
12. gate theory of pain
- ANS - proposes that there is a special gating mechanism
that can turn pain signals on or off, affecting whether or
not we perceive pain
13. Kinesthetic sensation (proprioception)
- ANS - ability to tell where one's body is in space
14. Bottom up processing
- ANS - refers to object recognition by parallel processing
and feature detection- brain takes individual sensory
stimuli and combines them together to create a cohesive
image before determining what the object is
, 15. top down processing
- ANS - driven by memories and expectations that allow
the brain to recognize the whole object and then
recognize the components based on these expectations
(quickly recognize objects without needing to analyze
specific parts)
16. Gestalt principles
- ANS - law of proximity
17. law of similarity
18. law of good continuation
19. law of closure
20. law of pragnanz
21. law of proximity
- ANS - elects close together tend to be perceived as a unit
22. law of similarity
- ANS - objects that are similar tend to be grouped
together
23. law of good continuation
- ANS - elements that appear to follow in the same
pathway tend to be grouped together
Practice Questions with Latest
2025-2026 Correct Answers
GRADED A+
1. just noticeable difference jnd
- ANS - minimum difference in magnitude between two
stimuli before one can perceive this difference
2. Weber's law
- ANS - there is a constant ratio between the change in
stimulus magnitude needed to produce a jnd (higher
stimulus will need a larger difference to produce a jnd)
3. Signal detection theory
- ANS - changes in out perception of the sam stimuli
depending on both internal and external context (how
loud would someone need to yell your name in a crowd
for you to hear their name?)
,4. response bias
- ANS - subjects respond in a certain way due to non
sensory factors
5. duplexity (duplicity theory of vision)
- ANS - retina contain two kinds of photoreceptores: those
specialized for light and dark detection and those
specialized for color section
6. cones
- ANS - used for color vision and sense fine details- most
effective in bright light and comes in 3 forms (blue, red,
green)
7. rods
- ANS - more functional and only allow sensation of light
and dark because they all contain a single pigment
(rhodopsin)- low sensitivity but allow night vision (more
rods than cones)
8. fovea
- ANS - center most part of the eye and only contains
cones
,9. optic chiasm
- ANS - fiber from the nasal half of each rating cross paths
10. parallel processing
- ANS - ability to simultaneously analyze and combine
information regarding color, shape, and motion
11. two point threshold
- ANS - minimum distance necessary between two points
of stimulation on the skin such that the points will be felt
as two distinct stimuli
12. gate theory of pain
- ANS - proposes that there is a special gating mechanism
that can turn pain signals on or off, affecting whether or
not we perceive pain
13. Kinesthetic sensation (proprioception)
- ANS - ability to tell where one's body is in space
14. Bottom up processing
- ANS - refers to object recognition by parallel processing
and feature detection- brain takes individual sensory
stimuli and combines them together to create a cohesive
image before determining what the object is
, 15. top down processing
- ANS - driven by memories and expectations that allow
the brain to recognize the whole object and then
recognize the components based on these expectations
(quickly recognize objects without needing to analyze
specific parts)
16. Gestalt principles
- ANS - law of proximity
17. law of similarity
18. law of good continuation
19. law of closure
20. law of pragnanz
21. law of proximity
- ANS - elects close together tend to be perceived as a unit
22. law of similarity
- ANS - objects that are similar tend to be grouped
together
23. law of good continuation
- ANS - elements that appear to follow in the same
pathway tend to be grouped together
