AP Psychology Sensation and Perception

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

• opponent process theory
• absolute threshold
• perceptual constancy

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

• Weber's Law
• Absolute threshold
• Difference threshold

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

• Difference threshold
• Weber's law
• Absolute threshold

1.       Sensation is to __________ as perception is to __________.

• Recognizing a stimulus; detecting a stimulus
• Detecting a stimulus; recognizing a stimulus
• Interpreting a stimulus; detecting a stimulus
• Seeing; hearing

The lowest stimuli intensity required for detection is the ______ and the smallest noticeable difference between a standard stimulus intensity and another stimulus value is the ______.

• absolute threshold; just noticeable difference

• base value; just noticeable difference

• response criterion; sensory constant

• just noticeable difference; absolute threshold

Study of people’s tendencies to make correct judgments in detecting the presence of a stimuli

• stereoscopic theory

• anamorphic theory

• Beuchet theory

• signal detection theory

Perception that misrepresent stimuli

• illusions

• perceptual inference

• constancy

• Gestalt pattern

A Gestalt pattern is...

• when your brain organizes bits and pieces into a meaningful whole

• notices the differences between two stimuli

• makes sense of binocular cues to make an inference

• notices the weakest amount of a stimuli

Closure, continuity, and proximity are all examples of...

• sensation

• figure ground perception

• Gestalt principles

• monocular cues

In the human eye, rods are to _________, as cones are to ________.

• light/ color

• color/ light

• monochromat/ dichromat

• dichromat/ monochromat

• lens/ iris