Impulses from Sensory Nerves of Catfish by Hudson Hoagland
نویسنده
چکیده
* It has, however, been shown by Du Buy that the curvatures obtained are reduced when higher concentrations of agar are employed. Our value of K/v applies to 1.5% agar. Boner, J. F., Biol. Zentr., 52, 565 (1932). Boysen-Jensen, P., Biochem. Zeit., 236, 205 (1931). Boysen-Jensen, P., Biochem. Zeit., 250, 270 (1932). Du Buy, H., Proc. Kon. Akad. Wetensch. Amsterdam, 34, 1 (1931). Dolk, H. E., Diss. Utrecht (1930). Dolk, H. E., and Thimann, K. V., Proc. Nat. Acad. Sci., 18, 30 (1931). Kogl, F., and Haagen-Smit, A. J., Proc. Kon. Akad. Wetensch. Amsterdam, 10, 1 (1931). Nielsen, N., Jahrb. wiss. Bot., 58, 406 (1930). Thimann, K. V., and Dolk, H. E., Biol. Zentr. (in press). Went, F. W., Rec. trav. bot. ntirl., 25, 1 (1928). Wey, H. G. van der, Diss. Utrecht (1932).
منابع مشابه
V. Responses in the Central Nervous System* the Journal of General Physiology
Descriptions of nerve impulses discharged from lateral-line nerves of trout and catfish have been presented in previous papers (Hoagland, 1932-33 a, b; 1933-34 a, b). A vigorous repetitive discharge of impulses, independent of all external s t imulat ion, has been found to occur over the lateral-line n e r v e s a p p a r e n t l y produced by continuous chemical reactions in the sensory cells ...
متن کاملElectrical Responses from the Lateral-line Nerves of Fishes
The spontaneous discharge of impulses from the lateral-line nerves of trout and catfish has been examined. 1. Broken endings of nerve fibers supplying receptors of the lateral-lines of trout and catfish may be the source of a repetitive discharge of nerve impulses. 2. This injury discharge occurs more frequently in trout and may mask the spontaneous discharge from the receptor cells. Experiment...
متن کاملElectrical Responses from the Lateral-line Nerves of Catfish. I
1. Records of impulses from the lateral-line nerves of catfish show that the lateral-line organs are in a state of continuous activity, producing a massive discharge of impulses. 2. The discharge may be increased during the direct application of pressure on the skin over the lateral-line canal, by ripples in the water, by irregular currents of water, and by movements of the fish's trunk. 3. The...
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Investigations in recent years have indicated a certain degree of quantitative specificity of impulses in afferent nerve fibers related to structural properties of the fibers (Erlanger, Bishop, and Gasser, 1926; Erlanger, 1927; Erlanger and Gasser, 1930). This specificity of impulses appears to be correlated, in part, with specific sense modalities (Matthews, 1929; Adrian, 1930, 1931; Adrian, C...
متن کاملElectrical Responses from the Lateral-line Nerves of Catfish. I by Hudson Hoagland
The function of the lateral-line organs of water-inhabitlng vertebrates has been a subject of interest to biologists for many years. Externally the lateral-line system is marked in fishes by rows of pores. The main lateral-line canal extends typically along the flank from head to tail and is a conspicuous marking on most fishes. In the head this canal branches into three stems, one of which pas...
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