Dualism and uniformism in sleep
until further notice
SourceMedical Hypotheses, 60, 1, (2003), pp. 116-118
Article / Letter to editor
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SW OZ DCC SMN
SW OZ NICI BI
The phenomenological evidence for distinguishing between REM and NREM sleep is overwhelming. However, this difference has only been found thanks to electrophysiological analytical methods, and is practically non existent in phenotypic terms, i.e., observable with the naked eye. It is well accepted that the selective pressure determining evolutionary changes can only work upon phenotypic differences. Hence, it follows that the differences between REM and NREM could not have been selected through evolution and this implies that, in functional terms, both states could be equivalent.
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