psychophysics
the study of relationships between the physical characteristics of stimuli, such as their intensity, and our psychological experience of them
Psychophysics is a branch of psychology that deals with the relationship between physical stimuli and the perceptual experience that they evoke. It is essentially the study of how people perceive sensory information, such as light, sound, taste, and touch, and how the physical properties of those stimuli affect perception.
Psychophysicists study the threshold at which stimuli can be detected and the intensity at which they can be sensed, as well as how people discriminate between different stimuli. They explore the limits of sensory perception and investigate the factors that influence it, such as attention, motivation, and past experience.
Psychophysics has practical applications in areas such as marketing and advertising, design and ergonomics, and biomedical engineering. It is also used in vision and hearing research, where it can help to improve the understanding of sensory processes and develop new diagnostic and therapeutic technologies.
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