Examlex
The VLOOKUP function requires four pieces of information to perform its operations.
Weber's Constant
A principle in psychophysics stating that the smallest perceptible change in a stimulus is proportional to the original intensity of the stimulus.
Light
A form of electromagnetic radiation visible to the human eye, responsible for the sense of sight.
Absolute Threshold
The minimum stimulus intensity that an organism can detect at least 50% of the time.
Subliminal Stimulation
Sensory stimulation below a person’s absolute threshold for conscious perception.
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