Final answer:
The term for the smallest increase or decrease in stimulus intensity that a person can detect is called Just Noticeable Difference (JND) or difference threshold. so, option b ois the correct answer.
Step-by-step explanation:
The smallest increase or decrease in the intensity of a stimulus that a person is able to detect is known as a Just Noticeable Difference (JND) or difference threshold. This concept is different from the absolute threshold, which refers to the minimum amount of stimulus energy required to be detected about 50% of the time. The JND varies depending on the stimulus intensity and context, illustrating that our sensory perception can be quite adaptive and sensitive to changes in the environment.
The just noticeable difference (JND) is the smallest increase or decrease in stimulus intensity that a person can detect. It is different from the absolute threshold and varies with stimulus intensity.
The smallest increase or decrease in the intensity of a stimulus that a person is able to detect is called the just noticeable difference (JND). The JND refers to the minimum amount of difference in stimulus energy required to be detected about 50% of the time. It is different from the absolute threshold, which is the minimum amount of stimulus energy required to be detected 50% of the time. Unlike the absolute threshold, the JND changes depending on the stimulus intensity.