Asked by Michelle DeMars on Jun 19, 2024
Verified
Prashanth is participating in a psychology experiment in which he is asked to gradually shrink the image of a square on his computer screen until he can just barely see that it is smaller than
A second square on the screen.Prashanth is trying to create a
A) signal detection.
B) absolute threshold.
C) just-noticeable difference.
D) sensory adaptation.
Just-noticeable Difference
The smallest change in the intensity of a stimulus that can be detected by a sensory system.
Sensory Adaptation
A decrease in sensitivity to a constant level of stimulation.
Absolute Threshold
The smallest amount of physical stimulation required to detect a sensory input half of the time it is present.
- Understand the concept of just-noticeable difference and its implications in sensation and perception.
Verified Answer
BH
Belana HannulaJun 25, 2024
Final Answer :
C
Explanation :
Prashanth is trying to determine the smallest difference in size between the two squares that he can still perceive, which is the definition of a just-noticeable difference (JND). This concept is part of Weber's Law, which deals with the smallest change in a stimulus that can be detected.
Learning Objectives
- Understand the concept of just-noticeable difference and its implications in sensation and perception.