AP PSYCHOLOGY

Detailed explanation-1: -Absolute threshold: the lowest level at which a stimulus can be detected. Recognition threshold: the level at which a stimulus can not only be detected but also recognized. Differential threshold: the level at which an increase in a detected stimulus can be perceived.

Detailed explanation-2: -An absolute threshold is the smallest amount of stimulation needed for a person to detect that stimulus 50% of the time. This can be applied to all our senses: The minimum intensity of light we can see. The lowest volume of a sound we can hear.

Detailed explanation-3: -Although the name suggests a fixed level at which stimuli effectively elicit sensations, the absolute threshold fluctuates according to alterations in receptors and environmental conditions. Also called absolute limen (AL); detection threshold; sensation threshold.

Detailed explanation-4: -The minimum amount of an odourant perceived (smelled) is known as the detection threshold (DT). This minimum amount represents the odour concentration.