Depth Perception and Color Vision

These flashcards cover key concepts related to depth perception and color vision based on the lecture notes.

Monocular Cues

Depth perception cues that can be perceived with one eye.

Relative Size

A monocular cue where smaller objects appear farther away.

Height in Field

Objects positioned higher in the visual field are perceived as farther away.

Texture Gradient

Fine detail in textures fades as distance increases.

Aerial Perspective

Distant objects appear hazier due to atmospheric effects.

Linear Perspective

Parallel lines appear to converge as they recede into the distance.

Motion Parallax

Closer objects move faster relative to the observer than farther objects.

Convergence

The inward movement of the eye muscles when focusing on close objects.

Retinal Disparity

The slight difference in image seen by each eye that contributes to depth perception.

Stereopsis

The brain's interpretation of retinal disparity to perceive depth.

Trichromatic Theory

Believes color perception is based on the activation of three cone types.

Dichromats

Individuals missing one of the three cone types, leading to color blindness.

Opponent-Process Theory

Claims that color is processed in pairs: red-green, blue-yellow, black-white.

Color Constancy

The ability to perceive colors consistently under varying light conditions.

Achromatopsia

A condition resulting from damage to area V4 in the brain, leading to color blindness.

Bottom-Up Processing

Perception driven primarily by sensory input rather than cognition.

Top-Down Processing

Perception shaped by expectations and prior knowledge.

Change Blindness

The phenomenon where a change in a visual stimulus goes unnoticed.

Inattentional Blindness

The failure to notice unexpected objects in a visual field.

Forced Perspective

Visual illusions that occur when monocular cues mislead our perception.