Sensation and Perception

Study of sensational perception

Minimum intensity of stimulus that a person can detect half the time, Tested vision and hearing

The blind spot of the eye because it contains only nerve fibers, no rods or cones,

Transfers image from eye to the brain (right and left eye)

Elevates the eyes (upward movement of the eyes)

The transparent layer that protects eyes, and is crystal clear

unable to see things clearly unless they are relatively close to the eyes

Responsible for night vision and sharpness; Rhodopsin - can't see at night

When turned on, makes electrical signals - Transduction

cannot see either red/green shades or blue/yellow shades but brown instead

to be perceived as different,two stimuli must differ by a constant minimum percentage;integrety

Contains sensory receptors that process visual information and sends it to the brain

A clouding of the eye's lens that may progress to blindness. Hand Motion or Light Perception

Color of eyes; regulates light flow into the pupil- hole

Our physical reaction to Environment instantaneously (flash,music,temperature)

Occipotal lobe makes 2 images into 1, received from the two eyes into a single, fused image

Sort out experience based on expectation and past (Exp: You didn't trip with the sofa at night)

Signal or message that passess below the normal limits or perception/ without being aware of it

Organization and interpretation of sensation (I like it or not)

The transparent structure behind the pupil that bends the light and focuses on the rear surface

Your absolute threshold will improve when more afraid, it's more accurate, and notice when loud

Descending track from the brain to the body (Make decisions and determine behavior)

Responsible for seeing color, color blindness

What casues distortion of vision

Takes signal and sends it to optic nerve

Theory that opposing retinal processes enable color vision. Stare at color wont see

Use retinal despair to see depth and motion on both eyes

Don't receive signals

jellylike substance behind the lens of the eye that maintains its shape and form

Level of stimulation needed, and ability to sense the environment (Absolute and Difference)

Can see one part but not the other

the processing of many aspects of a problem simultaneously; processing for many functions

fluid filling the anterior segment of the eye, means we dont have symmetrical eyes

Has the Fovela thats responisble for sharpness

eyesight that is blurry on objects that are nearby, but clear when at far distance

Ability to accurately identify sensory input, but inability to recognize others/objects

Decreases responses to a continuous stimuli (can't tell your room smells bad)

Can only see in shades of gray. known as complete or total color blindness.

located in the center of the macula of the retina. Sharpness of vision

Cones can see three colors, blue red and green. Mixed to get different shades

Photo sensitive Cells, Chemical reaction