Thresholds and Early vocabulary

Minimum difference between any two stimuli that a person can detect 50% of the time.

• Weber's Law
• Absolute threshold
• Difference threshold

The weakest level of a stimulus that can be correctly detected at least 50% of the time.

• opponent process theory
• absolute threshold
• perceptual constancy

Information processing that begins with sensory receptors and works up into the brain.

• top down processing
• subliminal processing
• bottom up processing

Difference thresholds increase in proportion to the size of the stimulus.

• Difference threshold
• Weber's law
• Absolute threshold

information processing guided by your pre existing knowledge or expectations to construct perceptions.

• top down processing
• Bottom up processing
• parallel processing

Temporary decrease in sensitivity to a stimulus that occurs when stimulation is unchanging. (nose blindness)

• absolute threshold
• schemas
• sensory adaptation

perceiving an object as unchanging even when the immediate sensation of the object changes.  

• parallel processing
• perceptual constancy
• somatosensation

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

• Stroboscopic motion

• Phi phenomenon

• Perceptual constancy

• Perceptual adaptation

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

• Phi phenomenon

• Color constancy

• Figure-ground

• Perceptual constancy

The focusing of conscious awareness on a particular stimulus

• Perception

• Selective attention

• Subliminal

• Inattentional blindness