Sensation and Perception 1

_____________ is the process of selecting and identifying information from the environment.

• Sensation

• Perception

____________ is the process by which we receive information from the environment.

• Sensation

• Perception

. Distinguishing between two shades of red is an example of

• absolute threshold

• sensory adaptation

• difference threshold

• afterimage

The point at which a change in sensory stimulation is detected is called the

• absolute threshold
• psychological equation
• just noticeable difference 
• Weber effect

A person is asked to listen to a series of tones presented in pairs, and asked to say whether the tones in each pair are the same or different in pitch. In this situation the experimenter is most likely measuring the individual's

• sound localization ability
• dichotic listening ability
• difference threshold
• echoic memory
• attention span

People listening to rock music played backward often perceive an evil message if specifically told what to listen for. That phenomenon best illustrates

• parapsychology
• complementary afterimages
• perceptual constancy
• perceptual adaptation
• top-down processing

The intensity at which a sound becomes audible for a given individual is known as the individual's

• contrast sensitivity
• absolute threshold
• response threshold
• critical frequency
• just noticeable difference (difference threshold)

To perceive a difference between two stimuli, they must differ by a constant percentage

• Stimulus

• Difference Threshold

• Webers Law

• Absolute Threshold

 Focusing of conscious awareness on a particular stimulus and blocking out all other stimuli.

• Parallel Processing

• Absolute Threshold

• Weber's Law

• Selective attention

Below one’s absolute threshold for conscious awareness.

• Subliminal

• Extrasensory

• Unconscious

• Superconscious