The goal of psychophysics is ____.
|A)||to understand how stimuli from the world affect the sensory experience|
|B)||to determine the absolute threshold in sensory perception|
|C)||to determine the difference threshold in sensory perception|
|D)||to study the relations between motivation, sensitivity, and decision making in detecting the presence or absence of a stimulus|
The absolute threshold indicates ____.
|A)||the minimum amount of difference a person can detect between two stimuli|
|B)||the smallest increase or decrease in the intensity of a stimulus that a person is able to detect|
|C)||the weakest amount of a of stimulus required to produce a response|
|D)||that the stimulus must be detected in the presence of competing stimuli|
Weber's law states that the ____ the stimulus, the larger the change required for a person to notice that anything has happened to it.
The signal-detection theory proposes all the following notions EXCEPT ____.
|A)||a stimulus, or signal, must be detected in the presence of competing stimuli|
|B)||a signal may be difficult to detect due to competing stimuli|
|C)||sensory adaptation allows us to notice differences in sensations and react to changing stimuli|
|D)||the absolute threshold is the amount of a stimulus required to produce a response 50 percent of the time|
The sensation of kinesthesis comes from receptors in and near the ____, and helps to maintain posture and balance.
|B)||muscles, tendons, and joints|
Which of the following statements about the sense of taste is NOT TRUE?
|A)||Taste receptors are the only receptors sensitive to chemical molecules.|
|B)||What people taste is greatly affected by their sense of smell.|
|C)||Taste is affected by the sensations of warmth, cold and pressure.|
|D)||Taste is composed of four primary sensory experiences -sour, salty, bitter, and sweet.|
Receptors in the skin provide the brain with information regarding each of the following EXCEPT ____.
When you distinguish an airplane from the sky in which it's flying, you are using ____ perception.
Which of the following statements about perception is TRUE?
|A)||Our perceptual set is the collection of beliefs, expectations, and needs that affect what we perceive.|
|B)||Until children are about 12 months old, depth perception is generally undeveloped.|
|C)||Babies as young as one month old can recognize different faces.|
|D)||Perceptual inference is an innate ability, independent of learning.|
____ are created when perceptual cues are distorted so that our brain cannot correctly interpret space, size, and depth cues.
|A)||monocular depth cues|
|B)||binocular depth cues|