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Decussation as an axial twist: A comment on Kinsbourne (2013)
Marc H E de Lussanet1, Jan W M Osse
1Institute for Sport Science, Westf. Wilhelms-Universität Münster.
Abstract:
One of the great mysteries of the brain, which has puzzled all-time students of brain form and function, is the contralateral organization of the forebrain and the crossings of its major afferent and efferent connections. As a novel explanation, two recent studies have proposed that the rostral part of the head, including the forebrain, is rotated by 180° with respect to the rest of the body (de Lussanet and Osse, 2012; Kinsbourne, 2013). Kinsbourne proposes one 180° turn while we consider the 180° being the result of two 90° turns in opposite directions. We discuss the similarities and differences between the two hypotheses.
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