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. 1999 Sep 28;96(20):11681–11686. doi: 10.1073/pnas.96.20.11681

Figure 4.

Figure 4

Visual salience modulation transfer functions. The model parameter corresponding to bottom-up amplification (i.e., filter throughput without attentional amplification) is plotted against spatial frequency on log-linear coordinates. Data, shown for three observers, are typical of spatial tuning functions for third-order motion in other tasks (17).