The electric image in Gnathonemus petersii.
We review modelling and experimental work dealing with the mechanisms of generation of electric image. We discuss: (1) the concept of electric image in the context of the reafference principle; (2) how waveform codes an impedance related qualia of the object image, referred to as "electric colour"; (3) that some characteristics of the spatial profiles generated by pre-receptor mechanisms are suitable for edge detection; (4) which parameters of the spatial profiles provide information for distance discrimination; (5) that electric images are distributed representations of the scene.
Budelli
R
R
Sciences Biomatemáitica y Neurociencias, Instituto de Biología, Facultad de Ciencias, Universidad de la República, Iguá 4225, Montevideo, Uruguay. ruben@biomat.fcien.uy
Caputi
A
A
Gomez
L
L
Rother
D
D
Grant
K
K
D000818:Animals; D004555:Electric Fish / Q000502:physiology*; D004557:Electric Organ / Q000502:physiology*; D004558:Electric Stimulation / Q000379:methods; D004594:Electrophysiology; D008954:Models, Biological