What procedure is involved in the Method of Limits in psychophysical testing?

The Method of Limits is a psychophysical testing approach where stimuli are presented in a controlled manner, gradually increasing or decreasing their intensity until the participant can detect a change. This method relies on the systematic adjustment of the stimulus level to determine the threshold at which an individual can perceive a stimulus.

In practice, the tester presents stimuli that range from sub-threshold (undetectable) to super-threshold (clearly detectable). When the stimulus intensity is altered, the participant provides feedback on their detection, allowing the researcher to establish a threshold value. This method is valuable because it provides a clear and direct measure of sensory perception and can be used in various types of sensory research to understand how stimuli are perceived by different individuals.