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. 2011 Apr 6;6(4):e18262. doi: 10.1371/journal.pone.0018262

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Ni et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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(A) Scan path found a significant linear trend across three graded valence levels (HV, MV and LV) in these metrics: edge weight (p = 0.02), peak velocity (PKV, p = 0.01), saccade angle (SAG, p<0.01) and pupil size (PUL, p<0.01), indicating a linear hedonic valence effect. (B) Scan path found a quadratic trend across three graded arousal levels (HA, MA and LA) in these metrics: fixation number (FNum, p<0.01), diameter of scan path (Diameter, p<0.01), coefficient a (p<0.01), coefficient c (p<0.01), PUL (p = 0.01), PKV(p<0.01), (p = 0.11), (p = 0.13), weight(p = 0.07), (p = 0.056), (p<0.01), saccade duration (SDR, p<0.01) and fixation duration (DRA, p<0.01). By F-test.

Inline graphic — (A) Scan path found a significant linear trend across three graded valence levels (HV, MV and LV) in these metrics: edge weight (p = 0.02), peak velocity (PKV, p = 0.01), saccade angle (SAG, p<0.01) and pupil size (PUL, p<0.01), indicating a linear hedonic valence effect. (B) Scan path found a quadratic trend across three graded arousal levels (HA, MA and LA) in these metrics: fixation number (FNum, p<0.01), diameter of scan path (Diameter, p<0.01), coefficient a (p<0.01), coefficient c (p<0.01), PUL (p = 0.01), PKV(p<0.01), (p = 0.11), (p = 0.13), weight(p = 0.07), (p = 0.056), (p<0.01), saccade duration (SDR, p<0.01) and fixation duration (DRA, p<0.01). By F-test.