. Eight lectures on the signs of life from their electrical aspect . 1[ PpnBmnn^ m w ,^^ The response is absolutely positive and relatively negative. Fig. 34.—Du Bois-Reymond's diagram (^Aix/iiv, 1885, p. 121) to illustrate the electrical response to electrical excitation of a strip of the electrical organ of Torpedo. The direction of the normal organ-discharge is supposed to be upwards, so that the first two responses of the upper line are homodrome in relation to the exciting current; the next two responses and all four responses of the lower line are antidrome. above Type IV.).
. Eight lectures on the signs of life from their electrical aspect . 1[ PpnBmnn^ m w ,^^ The response is absolutely positive and relatively negative. Fig. 34.—Du Bois-Reymond's diagram (^Aix/iiv, 1885, p. 121) to illustrate the electrical response to electrical excitation of a strip of the electrical organ of Torpedo. The direction of the normal organ-discharge is supposed to be upwards, so that the first two responses of the upper line are homodrome in relation to the exciting current; the next two responses and all four responses of the lower line are antidrome. above Type IV.). We thus have Type L as the characteristic response of the living organ, and Type IV. as that of the dead organ. This—if you will carefully read du Bois' description, and clearly appreciate the significance of his terminology— is the essential pair of features that respectively characterise the living and dead states of an electrical organ—it discharges in a direction of its own while it is alive; after death, it exhibits the ordinary polarisation of a non-living electrolyte.
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