title: Attentional asymmetries - cause or consequence of human right handedness?
abstract: It is well established that the vast majority of the population favors their right hand when performing complex manual tasks. However, the developmental and evolutionary underpinnings of human manual asymmetries remain contentious. One often overlooked suggestion is that right handedness may stem from an asymmetrical bias in attention, with the right hand being allocated more attentional resources during bimanual tasks than the left hand (Peters, 1981). This review examines the evidence for attentional asymmetries during a variety of bimanual tasks, and critically evaluates the explanatory power of this hypothesis for explaining the depth and breadth of individual- and population-level manual asymmetries. We conclude that, while the attentional bias hypothesis is well-supported in adults, it requires further validation from a developmental perspective to explain the full breadth of adult manual laterality.
authors: Department of Psychology, School of Life Sciences, Heriot-Watt University Edinburgh, UK.
authors: Gavin
authors: G
authors: Buckingham
authors: School of Psychology, Perception, Action and Memory Research Group, Bangor University Bangor, UK.
authors: David P
authors: DP
authors: Carey
keywords: attention; bimanual coordination; handedness; laterality development; laterality of motor control; motor control
references: J Neurophysiol. 2000 Feb;83(2):639-51
references: 10669480
references: Cortex. 2000 Sep;36(4):485-505
references: 11059451
references: Brain Cogn. 2001 Feb;45(1):129-40
references: 11161367
references: Cortex. 2001 Feb;37(1):101-22
references: 11292156
references: Nat Neurosci. 2001 Jun;4(6):656-61
references: 11369949
references: Nature. 2003 Aug 14;424(6950):769-71
references: 12917683
references: Exp Brain Res. 2003 Nov;153(1):59-75
references: 12923603
references: Brain Res Cogn Brain Res. 2003 Dec;18(1):102-5
references: 14659502
references: J Neurophysiol. 2004 Jul;92(1):66-72
references: 14724259
references: J Mot Behav. 1987 Dec;19(4):486-517
references: 15136274
references: Neuropsychologia. 2004;42(9):1162-7
references: 15178168
references: Laterality. 1998 Jan;3(1):53-75
references: 15513075
references: Curr Biol. 2005 Jan 11;15(1):42-6
references: 15649363
references: J Mot Behav. 2005 Mar;37(2):157-63
references: 15741144
references: Ciba Found Symp. 1991;162:300-8; discussion 308-11
references: 1802648
references: Vision Res. 2008 Feb;48(4):549-63
references: 18206205
references: Exp Brain Res. 2009 Apr;194(2):197-206
references: 19139859
references: J Mot Behav. 1998 Sep;30(3):249-59
references: 20037082
references: Cortex. 2011 Apr;47(4):432-40
references: 20100609
references: Vision Res. 2010 Jun 1;50(11):999-1013
references: 20219518
references: Exp Brain Res. 2010 Jun;203(2):391-405
references: 20431875
references: Neuropsychologia. 2012 May;50(6):1104-14
references: 22306518
references: Annu Rev Neurosci. 2012;35:73-89
references: 22524787
references: Neuropsychologia. 2014 May;58:81-7
references: 24732382
references: Dev Neuropsychol. 2014;39(5):331-41
references: 25090013
references: Neuropsychologia. 2014 Nov;64:300-9
references: 25278131
references: Front Psychol. 2014 Nov 04;5:1128
references: 25408673
references: Cogn Neuropsychol. 1998 May 1;15(3):279-312
references: 28657516
references: Science. 1977 Nov 11;198(4317):631-2
references: 335510
references: Hum Neurobiol. 1987;6(3):153-6
references: 3449483
references: Nature. 1986 Apr 24-30;320(6064):748-50
references: 3703000
references: Dev Psychobiol. 1986 May;19(3):247-58
references: 3709979
references: Exp Brain Res. 1985;60(1):159-78
references: 4043274
references: Q J Exp Psychol A. 1982 Nov;34(Pt 4):499-513
references: 6891088
references: Q J Exp Psychol. 1980 Feb;32(1):3-25
references: 7367577
references: Exp Brain Res. 1996;107(3):463-78
references: 8821386
references: Neuropsychologia. 1996 Dec;34(12):1203-13
references: 8951832
references: Cortex. 1997 Dec;33(4):639-52
references: 9444466
references: Neurosci Biobehav Rev. 1998 Oct;22(6):761-88
references: 9809311