Abstract
DR. CAMPBELL seeks to demolish the paradox by applying to sensations an argument constructed to take account of the variability of our measurements of the properties, believed to be constant, of external objects. Besides differing in other important respects, the two applications are unlike in that the presence of errors in our measurements is readily demonstrable by intercomparison, whereas the view that indistinguishable sensations are not in fact equal sensations is an arbitrary assumption which it would be difficult to support by direct evidence. This view is perhaps derived from the wish that it were permissible to regard visual sensation and light stimulus as definite single-valued functions of one another.
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SMITH, T. An Optical Paradox. Nature 121, 536 (1928). https://doi.org/10.1038/121536c0
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DOI: https://doi.org/10.1038/121536c0
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