Eight lectures on the signs of life from their electrical aspect eightlecturesons00wall Year: 1903 FlG. II.—Frog's eyeball. Galvunometric record of the normal response at beginning (a) and end (w) of illumination. '1 he delay in each case is about i sec. ; that of the galvanometer is ^ sec.; the net retinal delay is therefore about ^ sec. current, or 'positive,' while the response of a negative current of darkness is in the opposite direction to that current, or ' negative.' I have preferred to this correct, but rather confusing mode of description, to say that the response is normally fro
Eight lectures on the signs of life from their electrical aspect eightlecturesons00wall Year: 1903 FlG. II.—Frog's eyeball. Galvunometric record of the normal response at beginning (a) and end (w) of illumination. '1 he delay in each case is about i sec. ; that of the galvanometer is ^ sec.; the net retinal delay is therefore about ^ sec. current, or 'positive,' while the response of a negative current of darkness is in the opposite direction to that current, or ' negative.' I have preferred to this correct, but rather confusing mode of description, to say that the response is normally from fundus to cornea or positive^ whether it starts above or below the line of
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