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Figure 5


Fig. 5. Mean ultraviolet polarization sensitivity of rainbow trout (±1 standard error). (A) Electroretinogram (ERG) UV PS with LWS cone mechanism adaptation using the 600 nm long pass background (N=3). Note the intermediary peak shifts towards the horizontal polarization mechanism and the angular breadth of the horizontal polarization mechanism decreases while the vertical polarization mechanism increases. (B) ERG UV PS with UVS cone mechanism chromatic adaptation using a UG-11 background (N=3). Note the intermediary peaks shift towards the vertical polarization mechanism and the angular breadth of the horizontal polarization mechanism increases and the vertical decreases. Sv is represented by squares and Sh by diamonds. See Table 2 for linear subtractive model weighting functions.