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. 2020 May 6;40(19):3783–3798. doi: 10.1523/JNEUROSCI.2105-19.2020

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Figure 5. — Example PEG units showing foreground enhancement of responses to repeating noise. A, Raster and PSTH data for a unit from PEG, plotted as in Figure 4. This unit had a smaller overall response to the repeating segment compared with the random segment ( $G_{o}$ = −0.493; $G_{g}$ = −0.250), indicating some neural adaptation. Despite this adaptation, this unit had a significant foreground enhancement (E = 1.308) due to the suppression of background ( $G_{b}$ = −1.316) but no change of foreground ( $G_{f}$ = −0.009). B, Same as in A for a second unit in PEG. This unit showed facilitation of the overall response ( $G_{o}$ = 0.425; $G_{g}$ = 0.104). When broken down by stream, a second PEG unit underwent foreground enhancement (E = 2.163) due to the suppression of background ( $G_{b}$ = −1.551) and the enhancement of foreground ( $G_{f}$ = 0.612). Colored dots near each unit name identify their points in Figure 6.