Sensory adaptation

Brightness is determined by the

Amplitude of waves

Blind spot

Area in the retina where the axons of the 3 layers of retinal cells exit the eye to form the optic nerve, insensitive to light

Short wavelengths are found at the

Blue end

Fovea

Central area of Regina; greatest density of photo receptors

Lens

Changes shape to bring objects into focus

Retina

Contains photo receptor cells

Pupil

Iris opening that changes size depending on the amount of light in the environment

Aqueous humor

Next visual layer of the eye that is a clear watery fluid

Cornea

Protects the eye; bends light waves are the image could be focused on the retina

Long wavelengths are found at the

Red end

Saturation

Refers to the purity of the color people perceive. Example: highly saturated red= only red wave links; less saturated red= mixture of wavelengths

Optic nerve

Sends visual info to brian

Increases in stimulation decrease sensitivity while decreases in stimulation increases sensitivity

Sensory adaptation

Occurs when sensory receptors change their sensitivity to the stimulus

Sensory adaptation

Distinguishes sensory stimuli that takes into account the only the stimuli strengths but also elements such as the Setting, physical state, mood, and attitude

Signal detection theory

Visual accommodation

The change in the thickness of the lens as the eye focuses on objects that are far away or close

Color or hue is determined by

The length of the wave

Iris

The muscle that controls the size of the pupil

Cones

Visual sensory receptors found at the back of the retina, responsible for the vision and sharpness of vision

Rods

Visual sensory receptors found at the back of the retina, responsive for noncolor sensitivity to low levels of light

Blindspot (optic disc)

Where the optic nerve leaves the eye. There are no photo receptor cells here