论文信息 - The Change of Discharge Frequency by A.C. Stimulus in a Weak Electric Fish

The Change of Discharge Frequency by A.C. Stimulus in a Weak Electric Fish

1. A South American gymnotid Eigenmannia , changes the discharge frequency of its electric organ when a weak electric signal is applied to it with a frequency very close to that of its own discharge. Otherwise, the discharge frequency is extremely constant at a fixed temperature. 2. When the frequency of the applied signal is higher or lower than that of the fish discharge, the response is a decrease or increase of the discharge frequency, respectively. When the two frequencies are exactly the same, the response fails to occur. 3. The threshold of this response is very low. In one fish it was about 3 µ V./cm.

A. Watanabe | Akira Watanabe | Kimihisa Takeda | K. Takeda

[1] K. Negishi,et al. Physiological properties of electroreceptors of some gymnotids. , 1962, Journal of neurophysiology.

[2] H. W. Lissmann. On the Function and Evolution of Electric Organs in Fish , 1958 .

[3] H. Grundfest. The mechanisms of discharge of the electric organs in relation to general and comparative electrophysiology. , 1957, Progress in biophysics and biophysical chemistry.

[4] K. E. Machin,et al. The Mode of Operation of the Electric Receptors in Gymnarchus Niloticus , 1960 .

[5] C. W. Coates,et al. Activity in Electrogenic Organs of Knifefishes. , 1954, Science.

[6] K. E. Machin,et al. The Mechanism of Object Location in Gymnarchus Niloticus and Similar Fish , 1958 .

[7] C A Terzuolo,et al. MEASUREMENT OF IMPOSED VOLTAGE GRADIENT ADEQUATE TO MODULATE NEURONAL FIRING. , 1956, Proceedings of the National Academy of Sciences of the United States of America.