The minimum difference between two stimuli required for detection 50% of the time

Diminished sensitivity as a consequence of constant stimulation

Below ones absolute threshold for conscious awareness

The organization of the visual field into objects that stand out form their surroundings

Focusing of conscious awareness on a particular stimulus

A mental predisposition to perceive one thing and not another

Retinal receptors that are concentrated near the center of the retina and that function in daylight or in well light conditions. they detect fine details and give rise to color sensations

A visual phenomenon that occurs when continuous rotational motion is represented by a series of short samples

Perceiving familiar objects as having consistent color, even if changing illumination alters the wavelengths reflected by the object

An illusion of movement created when two or more adjacent lights blink on and off in quick succession

A person who tastes certain flavors and foods more strongly than other people

Our system for sensing the position and movement of individual body parts

A theory that the spinal cord contains a neurological gate that blocks pain signals or allows them to pass on to the brain

The process by which a virus transfers genetic material from one bacterium to another