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Enhancing Visual Perception: Effects of Contrast & Frequency on Eye Movements

Investigating the impact of high vs low spatial frequency and contrast levels on speeded eye movements towards salient stimuli. Saliency is dynamic and influenced by stimulus features.

luke-rivera
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Enhancing Visual Perception: Effects of Contrast & Frequency on Eye Movements

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  1. Van Zoest & Donk, 2008

  2. Van Zoest & Donk, 2008EXP1 • make a speeded eye movement toward the most salient

  3. Van Zoest & Donk, 2008EXP2

  4. About speed… • high-spatial-frequency (HSF) stimuli>low-spatial-frequency (LSF) stimuli • higher-contrast stimuli < lower-contrast stimuli

  5. Schyns and Oliva (1994)

  6. Schyns and Oliva (1994)

  7. (a) the LSF-contrast condition (b) the HSF-contrast condition.

  8. Saliency is not an entity as such but a time-dependent phenomenon.

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