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. Author manuscript; available in PMC: 2011 Nov 9.
Published in final edited form as: J Vis. 2009 May 28;9(5):26.1–2610. doi: 10.1167/9.5.26

Figure 6.

Figure 6

Top (bottom) panel shows l values (s values) of color shifts for all angles of modulation at 6.25 Hz (open circles) and 18.75 Hz (black squares). Error bars indicate ±1 SEM. Dashed lines indicate the l or s value for the metamer to equal-energy-spectrum (EES) “white”. Gray horizontal lines show measurements from the control condition with a steady surround metameric to EES. The horizontal axis shows the angle of surround modulation (angles tested were 0°, 26°, 45°, 63°, 90°, 116°, 135°, and 153°; see Figure 2b).