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Psychophysical Laws and Applications Quiz

#1

According to Weber's Law, the just noticeable difference (JND) is a constant fraction of the...

Stimulus intensity
Explanation

JND is constant proportion of stimulus intensity.

#2

The principle of 'just noticeable difference' (JND) is most closely associated with which psychophysicist?

Ernst Weber
Explanation

JND associated with Ernst Weber.

#3

The concept of 'absolute threshold' is most closely associated with which psychophysicist?

Gustav Fechner
Explanation

Absolute threshold associated with Gustav Fechner.

#4

Who is credited with the formulation of the 'just noticeable difference' (JND) concept?

Ernst Weber
Explanation

Ernst Weber formulated JND concept.

#5

The 'just noticeable difference' (JND) is also referred to as what in Fechner's terms?

Difference threshold
Explanation

JND is Fechner's difference threshold.

#6

Which psychophysical law states that the perception of a stimulus is proportional to its logarithm?

Fechner's Law
Explanation

Perception increases logarithmically with stimulus.

#7

In Stevens' Power Law, the exponent 'n' determines the relationship between the intensity of a stimulus and its perceived...

Sensation
Explanation

n determines stimulus-sensation relationship.

#8

Which psychophysical law suggests that the strength of a sensation grows as the logarithm of the stimulus intensity increases?

Fechner's Law
Explanation

Sensation grows logarithmically with stimulus intensity.

#9

According to Hick's Law, the time it takes for a person to make a decision depends on which factor?

Number of available choices
Explanation

Decision time depends on number of choices.

#10

Which psychophysical law states that the magnitude of the JND is proportional to the magnitude of the stimulus?

Weber's Law
Explanation

JND magnitude proportional to stimulus magnitude.

#11

Which psychophysical law states that the time it takes to make a decision increases logarithmically with the number of choices?

Hick's Law
Explanation

Decision time increases logarithmically with choices.

#12

The 'method of constant stimuli' is a technique used in psychophysics to measure what?

Absolute threshold
Explanation

Method to measure absolute threshold.

#13

In Stevens' Power Law, what does the exponent 'b' represent?

Psychological magnitude
Explanation

Exponent 'b' represents psychological magnitude.

#14

Which psychophysical law suggests that the increase in intensity of a stimulus produces diminishing returns in terms of its perceived magnitude?

Stevens' Power Law
Explanation

Stimulus intensity increase gives diminishing returns in perceived magnitude.

#15

What is the formula for calculating the just noticeable difference (JND) in Weber's Law?

JND = k * log(I)
Explanation

Formula for calculating JND in Weber's Law.

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