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| n | Subcortical (mid
brain) visual |
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| mechanisms
develop before cortical |
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| n | Novelty: Inhibition of return (IOR) favors |
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| searching in new
locations: seen in |
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| newborns, not at
2-3 months, again at 4 |
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| months (reflects
cortical development 4- |
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| 6 months of
visual system). Sustained |
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| fixation then
declines, and ability to |
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| orient without
shifting eye movement. |
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| n | Superior
colliculus lesion interferes |
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| 9/22/2004 |
| 4 |