Fig. 4
Impaired implicit times and amplitudes of the first-order kernel components in aged marmosets. (a) Representative waveforms of mfERG recordings showing the first-order kernel (1K) components from marmosets. Arrows indicate the N1 and P1 waves. (b) Quantitative analysis of implicit times for the N1 and P1 waves in young and aged marmosets. (c) The visual stimuli consisted of 61 hexagonal regions, and the resulting responses were grouped into five concentric rings for analysis. (d) Quantitative analysis of the P1 wave amplitudes in each concentric ring (rings 1 to 5). n = 10 from both eyes of 5 young marmosets and 8 from both eyes of 4 aged marmosets. *P < 0.05 (Mann–Whitney U test). Data are expressed as the mean ± S.E.M.
