The ability to localize visual objects in space is ______________.
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   conducted by the second visual pathway; | 
   
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   conducted by the primary visual pathway; | 
   
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   necessary for the perception of form and brightness; | 
   
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   necessary for the perception of color; | 
   
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   none of the alternatives is correct; | 
   
   
   
   
   
   [Review Part 1 of the tutorial]
   [Review Part 2 (Matching) of the tutorial]