Duration of plastic change in a modifiable efference copy.
A modifiable efference copy associated with the motor command that elicits an electric organ discharge (EOD) is found in mormyrid electric fish. It is a negative image of the expected effect of the afferent input that follows the EOD. A change in the afferent input pattern causes, over time, a corresponding change in the efference copy. The negative image is retained for at least one half-hour when the motor command is artificially silenced.
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D000818:Animals; D001931:Brain Mapping; D004557:Electric Organ / Q000294:innervation*; D004594:Electrophysiology; D005399:Fishes / Q000502:physiology*; D008526:Medulla Oblongata / Q000502:physiology*; D009046:Motor Neurons / Q000502:physiology; D009473:Neuronal Plasticity; D009475:Neurons, Afferent / Q000502:physiology; D009476:Neurons, Efferent / Q000502:physiology