Fitts’s law

the principle of motor control that activities that are performed more quickly tend to be done less accurately (see speed–accuracy tradeoff). It is formulated as MT = a + b f(DW), observed under a wide array of conditions to relate movement time (MT) linearly to a function f(DW) of the ratio of movement distance (D) and target size (W). [Paul Morris Fitts]

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Psychology term of the day

March 15th 2025

mental hygiene

a general approach aimed at maintaining mental health and preventing mental disorder through such means as educational programs, promotion of a stable emotional and family life, prophylactic and early treatment services (see primary prevention), and public health measures. The term itself is now less widely used than formerly.