An instrumented bearing, in particular for an electric steering wheel (12), comprises an outer element (1) and an inner element (6) whereof one is mobile relative to the other which is fixed, via at least a row of rolling elements (14) arranged between the elements, and by detection (22, 23, 31) of rotational parameters of the rotating element. The bearing further comprises electronic elements (34) for processing signals emitted by the detecting elements and electronic elements (35) for controlling at least an actuator electrically connected to the device, advantageously arranged on a printed circuit plate (33) fixed in rotation.