Sensory and Perceptual Processing

Cornea

Refracts the light and protects from accidents

Iris

Controls amount of wanted light to enter through pupil

Convex Lens

Focuses all light at one point in the eye called the Retina

Retina

Back of the eye which contains nerve cells

Photoreceptors

Cones and Rods

Rods

Allow to see in dim light

Cones

Allow us to perceive color

Photopigment

Light hits this and begins a chain of events that propagates visual signals

Horizontal Cells

Receive stimuli from multiple photoreceptor cells and adjusts signals that will be sent to bipolar cells

Amacrine Cells

Receives signals from bipolar cells and is responsible for regulation/integration of activity in bipolar and ganglion cells

Color Contrast

When painting a mark, the color will change when painted around

Trichromatic Stage

Trichromatic cone cells respond positively to one of the frequencies exhibit by photons arriving on their surface

Feature Detection

Brains detector cells respond to specific features like edges and angles

Parallel Processing

Brain cell teams process combined information about color, movement, form, and depth

Opponent Processing Theory

Looking at one color for too long causes receptor cells to become weaker and send weaker signals