Vision Short Answers Flashcards
Where are Cones Responsible for?
Daytime vision, colour vision, fine detail.
What is Foveal Vision Made of?
Cones only.
What are Rods Responsible for?
Nighttime vision - poor at colour and detail.
What is Photopic Vision?
Seeing with cones in normal daylight and with high acuity.
What is Scotopic Vision?
Seeing with rods in the dark with high sensitivity and low acuity.
What are the 2 Visual Pigments in Rods?
Rhodopsin, light sensitive chemical.
How many Visual Pigments are in Cones?
3.
What is the Gestalt Idea of Perceptual Organisation?
The whole is more than the sum of its parts.
What are 6 Gestalt Laws?
Ungrouped, proximity, colour similarity, shape similarity, continuity, closure.
When does Binocular Convergence Come into Play?
When viewing relatively close objects (3m or closer).
How does the Brain Use Disparity?
To compute relative distance.
What is the Rule of Occlusion?
Perceptual system adopts the simplest hypothesis.
What are the 4 Lobes of the Brain?
Occipital, temporal, parietal, frontal.
Which Part of the Brain is used in the ‘What’ Pathway?
Visual agnosia.
Which Part of the Brain is used in the ‘Where’ Pathway?
Optic ataxia.
