Definition, Meaning & Synonyms

absolute-threshold

noun

/ˈæb.sə.luːt ˈθreʃ.hoʊld/

Definition

The minimum level of stimulus intensity that is required for a sensory system to detect a stimulus.

Examples

The absolute threshold for hearing can be measured by the softest sound a person can hear.
In vision, the absolute threshold might be the dimmest light that can be detected in complete darkness.

Meaning

Absolute threshold refers to the smallest amount of stimulus energy that can be detected by our senses, such as hearing, sight, taste, smell, or touch. It represents the boundary between awareness and non-awareness of a stimulus.