Figure 6
Sources of internal noise. The top left graph represents the photon noise as a function of temporal frequency (independent of temporal frequency). The top right graph represents the fitted tMTF. The bottom left graph represents the early noise (independent of temporal frequency). The bottom right graph represents the late noise as a function of temporal frequency (linear function). The mean fit of our model is represented by grey solid lines for the young observers in experiment 1, black dash lines for older observers (experiment 1) and black solid lines for the young observers in experiment 2.
