The purpose of this paper was to examine current research and to determine whether the idea that the majority of left-handers were intellectually inferior to right-handers is empirically supported. This view was inferred in two studies and partially endorsed in another. Inquiry indicated that the cognitive performance of left-handers was not significantly lower than that of right-handers. Based on empirical evidence, then, the idea that left-handers possess cognitive deficits was not demonstrated.
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References
1.
AnnettM.TurnerA.Laterality and the growth of intellectual abilities. British Journal of Educational Psychology, 1974, 44, 37–46.
2.
BerenbaumS. A.Model of individual differences in hemispheric specialization and cognitive abilities with particular reference to sex and handedness. Dissertation Abstracts International, 1978, 39, 951-B.
3.
BriggsG. G.NebesR. D.KinsbourneM.Intellectual differences in relation to personal and family handedness. Quarterly Journal of Experimental Psychology, 1976, 28, 591–601.
4.
EmeR.StoneS.IsralR.Spatial deficit in familial left-handed children. Perceptual and Motor Skills, 1978, 47, 919–922.
5.
Fagin-DubinL.Lateral dominance and development of cerebral specialization. Cortex, 1974, 10, 69–74.
6.
HardyckC.Laterality and intellectual ability: a just not noticeable difference?British Journal of Educational Psychology, 1977, 47, 305–311.
HardyckC.PetrinovichL. F.GoldmanR. D.Left-handedness and cognitive deficit. Cortex, 1976, 12, 266–279.
9.
HeimA. W.WattsK. P.Handedness and cognitive bias. Quarterly Journal of Experimental Psychology, 1976, 28, 355–360.
10.
LevyJ.Possible basis for the evolution of lateral specialization of the human brain. Nature, 1969, 224, 614–615.
11.
LevyJ.ReidM.Variations in writing posture and cerebral organization. Science, 1976, 194, 337–339.
12.
LevyJ.ReidM.Variations in cerebral organization as a function of handedness, hand posture in writing and sex. Journal of Experimental Psychology: General, 1978, 107, 119–144.
13.
McKeeverW. F.VandeventerA. D.Visual and auditory language processing asymmetries: influences of handedness, familial sinistrality, and sex. Cortex, 1977, 13, 225–241.
14.
SacklerB. B.The relationship of handedness to cerebral organization and cognitive abilities. Dissertation Abstracts International, 1980, 41, 393-B.
15.
ShermanJ.Cognitive performance as a function of sex and handedness: an evaluation of the Levy hypothesis. Psychology of Women Quarterly, 1979, 3, 378–390.
