Stimulus intensity refers to the strength or magnitude of a stimulus, which can be measured in various ways such as brightness, loudness, or pressure.
Stimulus Intensity cheat sheet for homework
The absolute threshold is the minimum amount of stimulation needed for a person to detect a particular stimulus.
Sensation is the process by which our sensory receptors and nervous system receive and represent stimuli from our environment.
JND refers to the smallest difference between two stimuli that can be detected by an individual.