PSY 357 Finals Sample Questions with Complete
Solutions
What does JND stand for?
Just Noticeable Difference
What is the Just Noticeable Difference?
The smallest difference between two stimuli that can be detected
What happens when a stimulus change is below the JND?
The difference cannot be consciously detected
What are warm colors usually perceived as?
Closer to the viewer
What are cool colors usually perceived as?
Farther from the viewer
Why do optical illusions work?
They take advantage of how the brain processes visual information
What is perceptual distortion?
When the brain misinterprets visual input
What cranial nerve controls smell?
Cranial Nerve I (Olfactory)
What cranial nerve controls vision?
, Cranial Nerve II (Optic)
What cranial nerves help with eye movement?
Cranial Nerves III, IV, and VI
What cranial nerve controls taste from the anterior tongue?
Cranial Nerve VII (Facial)
What cranial nerve controls taste from the posterior tongue?
Cranial Nerve IX (Glossopharyngeal)
What cranial nerve helps with tongue movement?
Cranial Nerve XII (Hypoglossal)
What happens at the optic chiasm?
About 50% of optic nerve fibers cross to the opposite side
Why do humans only have 50% crossing at the optic chiasm?
To allow stereoscopic depth perception
What is stereoscopic vision?
Depth perception created by overlapping visual fields from both eyes
What structure carries visual information after the optic chiasm?
The optic tract
What thalamic structure processes visual signals before cortex?
Solutions
What does JND stand for?
Just Noticeable Difference
What is the Just Noticeable Difference?
The smallest difference between two stimuli that can be detected
What happens when a stimulus change is below the JND?
The difference cannot be consciously detected
What are warm colors usually perceived as?
Closer to the viewer
What are cool colors usually perceived as?
Farther from the viewer
Why do optical illusions work?
They take advantage of how the brain processes visual information
What is perceptual distortion?
When the brain misinterprets visual input
What cranial nerve controls smell?
Cranial Nerve I (Olfactory)
What cranial nerve controls vision?
, Cranial Nerve II (Optic)
What cranial nerves help with eye movement?
Cranial Nerves III, IV, and VI
What cranial nerve controls taste from the anterior tongue?
Cranial Nerve VII (Facial)
What cranial nerve controls taste from the posterior tongue?
Cranial Nerve IX (Glossopharyngeal)
What cranial nerve helps with tongue movement?
Cranial Nerve XII (Hypoglossal)
What happens at the optic chiasm?
About 50% of optic nerve fibers cross to the opposite side
Why do humans only have 50% crossing at the optic chiasm?
To allow stereoscopic depth perception
What is stereoscopic vision?
Depth perception created by overlapping visual fields from both eyes
What structure carries visual information after the optic chiasm?
The optic tract
What thalamic structure processes visual signals before cortex?
