Examlex
A help-desk information system has answers to questions that only a true user of an account or system would know.
Exposure
The act of making something visible or subjecting someone to an experience or influence.
Attention
The mental ability to focus on a single element of one's surroundings while disregarding other stimuli.
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.
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