Examlex
________-input devices convert sounds into a form that can be processed by the system unit.
Visual Acuity
The sharpness or clarity of vision, often measured by the ability to discern letters or numbers at a given distance according to a standardized chart.
Absolute Threshold
The minimum level of stimulus intensity needed for a stimulus to be perceived or detected at least half the time by an observer.
Perceptual Invariance
The ability to perceive the unchanging properties of objects (shape, size, brightness, color) despite variations in the sensory input.
Absolute Threshold
The smallest amount of stimulation needed for a stimulus to be detected by the senses 50% of the time.
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