efferencen.

1869 I. P. Hughlings Logic of Names 7 The idea then, of nervous action, is simply that of afference and efference, as the idea of a railway system is that of bringing things and people in, and taking things and people out.

1885 S. V. Clevenger Nervous & Mental Physics 40 Efference is quantitatively greater than afference.

1954 E. van Holst in Brit. Jrnl. Animal Behaviour 2 91/1 This central stimulus situation, the ‘image’ of the efference, may be called ‘efference copy’, EC.

1996 Economist 6 Apr. 100/3 Signals from the brain to the fingers and eyes (called efference) make the necessary adjustments to avoid an accident.

2010 B. Bridgeman in R. Nijhawan & B. Khurana Space & Time in Perception & Action vii. 95 Because the idea requires that the visual centers receive a copy of the neural efference to the eye muscles, it is now called efference copy.