Abstract
The picture or impression of the external world which we derive at any given instant is heavily dependent on our past experiences, on the present context and our current anticipations. The retinal cells and the ganglion cells behind them receive only the barest sampling of information from the external world; slants, and curvature of lines, relative colors and intensities, edges, contours, and texture, movement or change of position. [6, 5, 4] It is fragments like these that are the “picture” of the external world we used to believe was “Photographed” by the retina. Even these fragments are only a sampling of what actually exists in the physical world, a sampling moreover determined largely by the efferent intent or expectancy of the observer [1, 7].
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Segal, S.J. (1970). Imagery and Reality: Can they be Distinguished?. In: Keup, W. (eds) Origin and Mechanisms of Hallucinations. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-8645-6_9
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DOI: https://doi.org/10.1007/978-1-4615-8645-6_9
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