Examlex
LSD and psilocybin belong to which chemical grouping?
Weber's Law
A principle of perception that states the change in a stimulus that will be just noticeable is a constant ratio of the original stimulus.
Psychophysics
The scientific study of the relationship between physical stimuli and the sensations and perceptions they produce in the human mind.
Weber's Law
A principle that states the smallest change in a stimulus, such as weight or brightness, that can be detected is a constant proportion of the original stimulus's intensity.
Differential Threshold
The smallest detectable difference between two stimuli or the minimum change in intensity that a person can detect.
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