Chapter 4: Sensing and Perceiving

The stimulus intensity that one can just barely detect is termed the _____ threshold

Absolute

In general, how extensive are the effects of cognitive, emotional, and motivational factors on perception? To what extent does specialized knowledge or expertise influence the magnitude of such effects?

Cognitive, emotional, and motivational factors have substantial effects on perception. Knowledge or expertise has a little influence on the size of such effects.

Regarding sensation and perception, which of the following statements is true?

Sensation involves the activation of sense receptors; perception involves interpretation.

Anna is reading her psychology text. The activation of receptors in her retina its called _____; her interpretation of the stimuli as particular words is termed _____.

Sensation; perception

What does the blindsight phenomenon imply with respect to the relationship between conscious awareness and perceptual processing?

Conscious awareness is not necessary for perceptual processing.

Rods are best at _____; cones are best at _____

Detecting black, white and gray; detecting details and color

Cultural influences on perception are virtually negligible.

False

Massaging a sore foot is effective mainly because the action stimulates the release of additional endorphins.

False

Which of the following is the function of the retina?

It contains the photoreceptor cells

Jacquie dislikes foreign-language movies dubbed in English. she finds the mismatch between the movements of the speakers lips and the dubbed English words jarring. Jacquie's impaired perception of the dialogue reflects the _____ effect.

McGurk

Which of the following structures of the eye is correctly matched with its function?

Pupil-regulates the amount of light entering the eye

The ability to focus on some sensory inputs while tuning out others is termed _____ attention.

Selective

Knowledge of sensation and perception has enabled the substantial improvement of equipment and technology.

True

Prolonged exposure to a stimulus reduces our sensitivity to it.

True

The beta effect underlies our perception of motion in movies.

True