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Brain Anchoring

There are several other properties of phenomenal experience which are deeply problematic for a neural representation. When we rotate our head, our perceived world is observed to rotate relative to our perceived head. Perceived objects maintain their structural integrity and recognized identity as they rotate, translate, and scale by perspective in their motions through the perceived world. This suggests that the representation of spatial structure in the brain is not anchored to the tissue of the brain, but is free to rotate and translate relative to the neural substrate, as suggested in Köhler's field theory concept.

Phenomenal Projection

Another related property of perception is that as we rotate our eyes in different directions, the retinal image is used to update the corresponding portion of perceived space, as if the retinal image were being projected outward in perceived space, as an inverse analog of the cone of light entering the eye. For example when I look upward, the retinal image updates my perceptual image of the ceiling, while when I look downwards the retinal image updates my perceptual image of the floor.

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