Modulation of motion-induced-blindness by ...

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University of Oxford, Department of Experimental Psychology [email protected]. Acknowledgement: This study was funded by a Leverhulme Trust ...
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Bonneh YS, Cooperman A, Sagi D (2001) Nature 411(6839): 798-801. Graf EW, Adams WJ, Lages M (2002) Vision Research 42:2731-2735.

Acknowledgement:

This study was funded by a Leverhulme Trust grant

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• Being limited to the left (and lower) visual field. This may reflect attentional biases in visual processing.

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The location of the concave area was identified ‘correctly’ by most observers for most of the period of the trial.

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#MIB (conv) - #MIB(conc) #MIB (concave) #MIB (convex)

o Intriguingly, this convexity effect showed a spatial anisotropy.

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 Supporting a causal role for general, cue-invariant, 3D surface coding in MIB.

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o Monocular 3D convexity cues in the dynamic mask can modulate the frequency of MIB.

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• Overall there were more MIB events in conditions where the surface surrounding the target(s) is convex (protruding) compared to where it is concave (receding). • This effect is consistent with the previously reported effect of disparity-based depth ordering cues on MIB.

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Conclusions

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To verify perception of 3D convexity/concavity in the mask observers took part in an additional task in which they reported (by key press) throughout the trial the side of the mask that they perceived as concave. Period of ‘correct’ concavity identification

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