Eight lectures on the signs of life from their electrical aspect eightlectureson00wall Year: 1903 VI.] THE LATENT PERIOD 105 excised pads that we tested by direct excitation, the 'normal current' was ingoing—in precisely the opposite direction to what might have been expected in a piece of living tissue with an artificial section—in one pad the effects of excitation were ingoing, increments of the normal current; in the other they were outgoing, decrements of the ' normal current.' Seconds. •DOS voLC Fig 43.—Cat. Ingoing response of pad of foot aroused by excitation of the sciatic nerve.


Eight lectures on the signs of life from their electrical aspect eightlectureson00wall Year: 1903 VI.] THE LATENT PERIOD 105 excised pads that we tested by direct excitation, the 'normal current' was ingoing—in precisely the opposite direction to what might have been expected in a piece of living tissue with an artificial section—in one pad the effects of excitation were ingoing, increments of the normal current; in the other they were outgoing, decrements of the ' normal current.' Seconds. •DOS voLC Fig 43.—Cat. Ingoing response of pad of foot aroused by excitation of the sciatic nerve. Berne coil at 1000 units. The latent period is 3 seconds. (Galvano- meter record.) Here are the records you saw taken a few minutes ago (p. 100), showing the lost time and the course of the indirect effect, on the galvanometer and on the electrometer. Compar- Seconds. H I I I I I I I I


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