Asked by Adeline Ripberger on May 04, 2024
Verified
In the equation S = k log I, the S refers to __________.
A) the psychological or subjective magnitude of a stimulus
B) the physical intensity of the stimulus
C) the constant whose value depends on the value of the Weber fraction
D) none of the above
Psychological Magnitude
A concept in psychology that refers to the perceived size, amount, or intensity of a psychological attribute.
Weber Fraction
A principle stating that the just noticeable difference between two stimuli is proportional to the magnitude of the stimuli, a fundamental concept in psychophysics.
Stimulus
Anything in the environment that can trigger a physical or behavioral change in an organism.
- Understand thoroughly the foundational principles of psychophysics and the relationship that exists between physical stimuli and the experiences of the senses.
Verified Answer
ZK
Zybrea KnightMay 05, 2024
Final Answer :
A
Explanation :
In the equation S = k log I, S refers to the psychological or subjective magnitude of a stimulus. This equation is known as the Stevens' Power Law and is used to relate the physical intensity of a stimulus (I) to the perceived intensity or sensation (S) it produces. The constant k depends on the sensory modality and the specific task used to measure the subjective magnitude of the stimulus. The Weber Fraction, on the other hand, is a different constant that relates the just noticeable difference (JND) to the magnitude of the stimulus.
Learning Objectives
- Understand thoroughly the foundational principles of psychophysics and the relationship that exists between physical stimuli and the experiences of the senses.