The information capacity of the human motor system in controlling the amplitude of movement¶
Fitts, P. M. (1954). The information capacity of the human motor system in controlling the amplitude of movement. Journal of Experimental Psychology.
Cited by¶
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Domain-specific¶
- Fitts's Law
- Fitts's law (Paul Fitts, 1954) is the empirical regularity that the time required for a person to move an effector to acquire a target is a logarithmic function of the ratio of target distance to target width: MT = a + b · log₂(2D/W), where D is centre-to-centre distance from start to target, W is the width of the target (the spatial tolerance for acquisition), a is an empirically fit intercept capturing response-initiation overhead, and b is the slope, in seconds per bit — the per-bit cost of transmission through the movement channel, whose reciprocal is a rate in bits per second
This sourceThe intercept-and-slope regression form this sentence uses is a later reformulation; Fitts's paper fits no regression line.
- Fitts's law (Paul Fitts, 1954) is the empirical regularity that the time required for a person to move an effector to acquire a target is a logarithmic function of the ratio of target distance to target width: MT = a + b · log₂(2D/W), where D is centre-to-centre distance from start to target, W is the width of the target (the spatial tolerance for acquisition), a is an empirically fit intercept capturing response-initiation overhead, and b is the slope, in seconds per bit — the per-bit cost of transmission through the movement channel, whose reciprocal is a rate in bits per second
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