Is there a sex difference in human laterality? IV. An exhaustive survey of dual-task interference studies from six neuropsychology journals

Journal of Clinical and Experimental Neuropsychology
M HiscockR Inch

Abstract

The entire contents of six neuropsychology journals (161 volumes, 612 issues) were screened to identify dual-task laterality experiments. Of 112 experiments thus identified, 45.5% provided information about sex differences. Although 23 experiments yielded at least one significant main effect or interaction involving the sex factor, only 5 outcomes represented an unambiguous sex difference in laterality. All 5 of those sex differences support the hypothesis of greater hemispheric specialization in males. The confirmatory outcomes constitute less than 10% of the informative experiments and less than 5% of the total population of experiments. These data alone do not rule out the possibility that sex differences are chance findings (Type I errors). However, when considered along with similar results from perceptual laterality data previously examined, the dual-task data fit the pattern of a small but reliable population-level sex difference in human laterality.

Citations

Jun 2, 2009·Journal of Clinical and Experimental Neuropsychology·Gina A Mitchell, David W Harrison
Jan 2, 2014·Proceedings of the National Academy of Sciences of the United States of America·Larry Cahill
Mar 26, 2010·Scandinavian Journal of Primary Health Care·Gwenllian Wynne-JonesKate M Dunn
Jun 15, 2004·NeuroImage·E LudersG Schlaug
May 3, 2006·Brain Research·Hugh GaravanClare Kelly
May 12, 2016·Neuroscience and Biobehavioral Reviews·I García-GarcíaJ Neumann
Dec 25, 2009·American Journal of Men's Health·John H HollmanDesiree J Lanzino
Jun 29, 2007·Human Brain Mapping·Vincent J SchmithorstBernard J Dardzinski
May 20, 2005·Cerebral Cortex·E LudersA W Toga
Feb 23, 2012·Cognitive and Behavioral Neurology : Official Journal of the Society for Behavioral and Cognitive Neurology·Melita J GiummarraPeter Brugger

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