The Puzzle of Left-Handedness

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The Puzzle of Left-Handedness Page 31

by Rik Smits


  At this point we need to ask how far the way in which the youngest and oldest distributed their crosses needs to differ in order to produce the reduction in left-handedness that emerges. The answer is rather surprising: depending on how many double crosses were entered on average, only one in every two or three of the subjects who answered the questionnaire had to move, all told, one cross from left to right. In concrete terms this means that if out of every two or three people there’s one who in the course of a lifetime has switched hands for just one of the ten tasks, the difference is explained away entirely. In fact that person doesn’t even need to switch hands. It’s enough for him to have become less pronounced in his hand preference, so that instead of two crosses he enters one. Given the notion that we mellow with age, this is not at all improbable. Consider too the fact that the average fifteen-year-old is keen to be special and interesting. Left-handedness is out of the ordinary, so you’d be an odd kind of teenager if you didn’t milk it for all it was worth. Once you reach 40, such considerations have come to matter a good deal less.

  38

  Creative, Musical, Brilliant and Famous!

  ‘Is your child left-handed? Then maybe you’re raising a genius’, ran a headline in the British magazine The Listener in 1975. It was one of those articles in which enormous creativity and remarkable artistic gifts are attributed to left-handers, based on the supposed dominance of that emotional, creative right half of the brain. The value of ideas like this is of course only relative, even though they may come as a welcome relief to left-handers after a whole series of negative dictums, an attitude of incomprehension on the part of parents and teachers, and ominous messages à la Stanley Coren. It’s often mentioned that not only the mentally handicapped but geniuses include an unexpectedly large number of left-handers. But what does this mean, if no one knows just how many geniuses the world has produced? People regularly point to famous left-handers of the past, such as Michelangelo and Leonardo da Vinci. In many cases, incidentally, this appeal to genius is based on shifting sand, since an enthusiasm for claiming prominent individuals for the left-hander camp often gets the better of conscientiousness. Bob Dylan is not left-handed, and neither was Picasso, nor a whole string of other celebrated figures. This kind of thing serves no purpose anyhow, since it would be equally justifiable and equally ill-conceived to comfort bald men who have birthmarks with the achievements of Mikhail Gorbachev, disabled people with the success of Stephen Hawking or depressive redheads with the genius of Vincent van Gogh.

  Innumerable well-worn tales are told about architecture colleges and music academies where a fantastically high proportion of left-handers is to be found, and they’re said to get better marks on average too. Anything is possible, but we have no solid data to suggest left-handedness is accompanied by special gifts. Only in two areas do left-handers undeniably have an advantage.

  One is in sports like tennis, baseball, boxing and fencing. But then again, they’re at a disadvantage in games like polo and hockey.

  The other is the us presidency. Bizarrely, that tiny, illustrious company of men includes an improbable number of left-handers. Of the last seven presidents, up to and including Barack Obama, five were left-handed, the exceptions being Jimmy Carter and George W. Bush. The Republican candidate for the 2008 election, John McCain, is also a member of the club, while in 1992 the sitting president, Bush senior, and both his challengers, Bill Clinton and Ross Perot, were left-handed. Still, does this say anything about left-handedness in general? If it does, then it can’t be anything particularly complimentary, since nice people could never hope to triumph in the ruthless contest that is the race for the American presidency. We’re talking here about such an exceptional group of people anyhow that it’s safe to assume little can be deduced from the statistics.

  Left-handers seem, as far as we can tell, simply to be left-handed. In a predominantly right-handed world they are generally presented with misleading examples to follow, unhelpful instructions and less than optimal tools. In many ways this throws them back on their own resources from a young age. Perhaps left-handed people should at least be allowed to flatter themselves with the thought that they’re more independent than average.

  Charlie Chaplin playing the cello with his left hand, c. 1915.

  BIBLIOGRAPHY

  Achbar, M., ed. 1995 Manufacturing Consent: Noam Chomsky and the Media, Montreal, Black Rose Books

  Altera, J. 1970 ‘Wat doen we eigenlijk voor uitgesproken linkshandigen’, Pedagogische Studiën

  Anderson, M. G. 1989 ‘Lateral preference and longevity’, Nature

  Annett, M. 1972 ‘The distribution of manual asymmetry’, British Journal of Psychology

  —, 1974 ‘Handedness in children of two left-handed parents’, British Journal of Psychology

  —, 1975 ‘Hand preference and the laterality of cerebral speech’, Cortex

  —, 1976 ‘A coordination of hand preference and skill replicated’, British Journal of Psychology

  —, 1985 Left, Right, Hand and Brain: The right shift theory, London, Lawrence Erlbaum

  —, and M. Manning 1989 ‘The disadvantages of dextrality for intelligence’, British Journal of Psychology

  Apuleius, L. 2003 De gouden ezel (metamorfosen), vertaald en toegelicht door Vincent Hunink, Amsterdam, Athenaeum – Polak & Van Gennep

  Bächtold-Stäubli, H. 1987 Handwörterbuch des deutschen Aberglaubes, Berlin, De Gruyter

  Bakan, P. 1973 ‘Handedness and alcoholism’, Perceptual and Motor Skills

  Bakan, P., G. Dibb and P. Reed 1973 ‘Handedness and birth stress’, Neuropsychologia

  Bambach, C. C. 2003 Leonardo, Left-Handed Draftsman and Writer, New York, The Metropolitan Museum of Art

  Barnes, F. 1975 ‘Temperament, adaptability and left-handers’, New Scientist

  Barsley, M. 1968 Linkshandigheid: wetenswaardigheden en curiosa voor links- en rechtshandigen, Hilversum, Haan

  Barsley, M. 1970 Left-Handed Man in a Right-Handed World, London, Pitman

  Baskerville, R. F. 1992 ‘On the directional asymmetry of rhesus macaque forelimb bones’, American Journal of Physical Anthropology

  Bellugi, U., E. S. Klima et al. 1986 Examining Language Dominance Through Hand Dominance, Boston University Conference on Language Development

  Belmont, L., and H. S. Birch 1963 ‘Lateral Dominance and Right-Left Awareness in Normal Children’, Child Development

  Benbow, C. P. 1986 ‘Physiological Correllates of Extreme Intellectual Precocity’, Neuropsychologia

  Benton, A. L. 1959 Right-Left Discrimination and Finger Localization, New York, Hoeber-Harper

  —, R. Meyers and G. Polder 1962 ‘Some aspects of handedness’, Psychiatric Neurology

  Best, C. T. 1985 Hemispheric Function and Collaboration in the Child, New York, Academic Press

  Bever, T. G., and R. J. Chiarello 1974 ‘Cerebral dominance in musicians and nonmusicians’, Science

  Birkett, P. 1979 ‘Relationships among handedness, familial handedness, sex and ocular sighting-dominance’, Neuropsychologia

  Bisazza, A., et al. 1996 ‘Right-pawedness in toads’, Nature

  Bishop, D.V.M. 1983 ‘How sinister is sinistrality?’ Journal of the Royal College of Physicians of London

  —, 1989 ‘Does hand proficiency determine hand preference?’ British Journal of Psychology

  —, 1989 ‘On the futility of using familial sinistrality to subclassify handedness groups’, Cortex

  —, 1990 Handedness and Developmental Disorder, London, MacKeith

  Blakeslee, T. R. 1980 The Right Brain, London, MacMillan

  Blau, A. 1946 The Master Hand: A study of right and left sidedness and its relation to laterality and language, Research Monographs of the American Orthopsychiatric Association

  —, 1961 ‘Don’t let your child be a leftie!’ Lakeland Ledger, 5 March

  Bock, G. R., and J. Marsh, eds 1991 Biological Asymmetry and Handedness, New York, Wiley

  Boklage, C. E. 1981 ‘On th
e distribution of non-right-handedness among twins and their families’, Acta geneticae medicae et gemellologiae

  —, 1984 ‘Twinning, handedness, and the biology of symmetry’, in Geschwind and Galaburda 1984

  Bouma, J. M. 1988 Perceptual Asymmetries and Hemispheric Specialization, diss., Vrije Universiteit Amsterdam

  Bourassa, D. C., I. C. McManus and M. P. Bryden 1996 ‘Handedness and eye dominance: A meta-analysis of their relationship’, Laterality

  Bradshaw, J. L. 1980 ‘Right-hemisphere language: Familial and non-familial sinistrals, cognitive deficits and writing hand position in sinistrals, and concrete abstract, imageable-nonimageable dimensions in word recognition. A review of interrelated issues’, Brain and Language

  Bradshaw, J. L., and N. Nettleton 1983 Human Cerebral Asymmetry, Hemel Hempstead, Prentice Hall

  Briggs, G. G., and R. D. Nebes 1976 ‘The effects of handedness, family history and sex on the performance of a dichotic listening task’, Neuropsychologia

  Brightwell, R. 1975 ‘Is your child left-handed? Then you may be bringing up a genius’, The Listener, 7 February

  Bryden, M. P. 1973 ‘Perceptual asymmetry in vision: Relation to handedness, eyedness and speech lateralization’, Cortex

  Burt, C. 1937 The Backward Child, University of London Press

  Calnan, M., and K. Richardson 1976 ‘Developmental correlates of handedness in a national sample of 11-year-olds’ (National Children’s Bureau, London) Annals of Human Biology

  Carlyle, T. 1837 The French Revolution: A History in Three Volumes, Boston, Charles C. Little and James Brown

  Carroll, L. 1872 Through the Looking Glass, and What Alice Found There, London, MacMillan

  Casasanto, D. 2009 ‘Embodiment of abstract concepts: good and bad in right- and left-handers’, Journal of Experimental Psychology

  —, R. Willems and P. Hagoort 2010 ‘Body-specific representations of action verbs: evidence from fMRI in right- and left-handers’, Psychological Science

  Castillo, G. A. 1974 Left-Handed Teaching: Lessons in affective education, New York, Praeger

  CBS 1986 ‘Linkshandigheid’, Maandbericht Gezondheidsstatistiek

  Chamberlain, H. D. 1928 ‘The inheritance of left-handedness’, Journal of Heredity

  Clark, K. 1939 Leonardo da Vinci, London, Penguin

  Clark, M. M. 1957 Left-Handedness: Laterality characteristics and their educational implications, University of London Press

  —, 1980 Linkshandige kinderen: onderzoek en praktijk, Nijkerk, Intro

  Cole, J. 1955 ‘Paw preference in cats related to hand preference in animals and man’, Journal of Comparative and Physiological Psychology

  Collins, R. L. 1968/69 ‘On the heredity of handedness’, Journal of Heredity

  Conrad, K. 1949 ‘Über aphasischen Sprachstörungen bei hirnverletzten Linkshänder’, Der Nervenarzt

  Corballis, M. C. 1983 Human Laterality, New York, Academic Press

  —, and I. L. Beale 1971 ‘On telling left from right’, Scientific American

  —, and —, 1976 The Psychology of Left and Right, New Jersey, L. Erlbaum

  Coren, S. 1989 ‘Left-handedness and accident-related injury risk’, American Journal of Public Health

  —, 1992 The Left-Hander Syndrome: The causes and consequences of left-handedness, London, John Murray

  —, and D. Halpern 1991 ‘Left-handedness: A marker for decreased survival fitness’, Psychological Bulletin

  —, and —, 1991 ‘Hand preference and life span’, New England Journal of Medicine

  —, ed. 1990 Left-Handedness: Behavioral implications and anomalies, Amsterdam, North-Holland

  —, A. Searleman and C. Porac 1986 ‘Rate of physical maturation and handedness’, Developmental Neuropsychology

  Coryell, J. F., and G. F. Michel 1978 ‘How supine postural preferences of infants can contribute toward the development of handedness’, Infant Behaviour and Development

  Coulmas, F. 1989 The Writing Systems of the World, Oxford, Basil Blackwell

  Crovitz, H. F. 1962 ‘On direction in drawing a person’, Journal of Consult Psychology

  Dart, R. 1949 ‘The predatory implemental technique of Australopithecus’, American Journal of Physical Anthropology

  Dawson, J. 1972 ‘Temne-Arunta hand-eye dominance and cognitive style’, Journal of Psychology

  Deglin, V. L. 1976 ‘Our split brain’, The UNESCO Courier, January

  DeKay, J. T. 1966 The Left Handed Book, New York, Evans

  Demarest, J., and L. Demarest 1980 ‘Does the torque test measure cerebral dominance in adults?’ Perceptual and Motor Skills

  Dennis, W. 1958 ‘Early Graphic Evidence of Dextrality in Man’, Perceptual and Motor Skills

  Dimond, S. J., and D. A. Blizard 1977 Evolution and Lateralization of the Brain, New York Academy of Science

  Draaisma, Douwe 2004 ‘Het einde van de hersenverdoving’, AMC-magazine, October

  Duffy, F. H., G. B. McAnulty and S. C. Schachter 1984 ‘Brain Electrical Activity Mapping’, in Geschwind and Galaburda 1984

  Dumont, J. J. 1976 Leerstoornissen, vols 1 and 2, Rotterdam, Lemniscaat

  Eling, P. 1987 ‘Waarom is rechts schrijven toch beter dan links?’ Jeugd, School en Wereld

  —, and B. Vreede-Chabot 1989 ‘Is ons schrift gemaakt voor de rechter-hand?’ Tijdschrift voor orthopedagogiek

  Ellis, S. J., et al. 1998 ‘Is forced dextrality an explanation for the fall in the prevalence of sinistrality with age? A study in northern England’, Journal of Epidemiological Community Health

  —, P. J. Ellis and E. Marshall 1988 ‘Hand preference in a normal population’, Cortex

  Engen, A. van 1980 Leerkrachten en handigheidskeuze. Een inventariserend onderzoek naar de handigheidsproblematiek in klas 1 bij het schrijfonderwijs, Groningen

  —, 1981 Nota Schrijfdidactiek voor Linkshandigen, Assen, SABD Drente

  —, 1982 Schrijfdidactiek voor Linkshandigen, Informatiepunt Basisonderwijs no. 170

  Ettlinger, G., and A. Moffett 1964 ‘Lateral Preferences in the Monkey’, Nature

  Finch, G. 1941 ‘Chimpanzees’ Handedness’, Science

  Fincher, J. 1993 Lefties, New York, Barnes and Noble

  Flament, F. 1975 Coordination et prevalence manuelle chez le nourrisson, Aix, Eds CNRS

  Flatt, A. E. 2008 ‘Is being left-handed a handicap? The short and useless answer is “yes and no”’ Baylor university Medical Center Proceedings

  Fritschi, L., M. Divitini et al. 2007 ‘Left-handedness and risk of breast cancer’, British Journal of Cancer

  Gangestad, S. W., and R. A. Yeo 1997 ‘Behavioral genetic variation, adaptation and maladaptation: An evolutionary perspective’, Trends in Cognitive Sciences

  Gardner, M. 1982 The Ambidextrous universe: Left, Right and the Fall of Parity, London, Pelican Books

  Gaur, A. 1992 A History of Writing, New York, Cross River Press

  Geraedts, J., et al., eds 2009 Evolutie zit in je genen, over Darwin en Genomics, Stichting Bio-Wetenschappen & Maatschappij

  Geschwind, N., and A. M. Galaburda 1984 Cerebral Dominance: The biological foundation, Harvard University Press

  —, and —, 1987 Cerebral Lateralization: Biological mechanisms, associations and pathology, Massachusetts, MIT Press

  —, and —, 1985 ‘Cerebral lateralization, biological mechanisms, associations and pathology I: a hypothesis and program for research’, Archives of Neurology

  —, and —, 1985 ‘Cerebral lateralization, biological mechanisms, associations and pathology II: a hypothesis and program for research’, Archives of Neurology

  —, and —, 1985 ‘Cerebral lateralization, biological mechanisms, associations and pathology III: a hypothesis and program for research’, Archives of Neurology

  Gesell, A., and L. B. Ames 1947 ‘The development of handedness’, Journal of Genetical Psychology

  Glick, S. D. 1985 Cerebral Lateralization in Non-Human Species, New York, Academic Press

  Goldschmidt, T. 200
3 De andere linkerkant: links en rechts in de evolutie, Amsterdam, Athenaeum – Polak & Van Gennep

  Gooch, S. 1980 ‘Right brain, left brain’, New Scientist

  —, 1980 The Double Helix of the Mind, London, Wildwood House

  Gordon, C. H. 1987 Forgotten Scripts: Their ongoing discovery and decipherment. Revised and enlarged edition, New York, Dorset Press

  Gordon, N. 1986 ‘Left-handedness and learning’, Developmental Medicine and Child Neurology

  Gould, J. 1838–1841 The Zoology of the Voyage of HMS Beagle under the Command of Captain Fitzroy, R.N., During the Years 1832 to 1836. Edited and superintended by Charles R. Darwin, Part 3. Birds, London, Smith, Elder and Co.

  Graaf-Tiemersma, M. J. de 1995 Linkshandigheid en dyslexie: de testosterontheorie voor cerebrale lateralisatie, diss. Universiteit Utrecht

  Groenen, M., and H. J. Megens 2009 ‘Darwins vinken’, in Geraedts et al. 2009

  Groff, P., 1964 ‘Who are the better writers – the left-handed or the right-handed?’ Elementary School Journal

  Gross, K. 1985 Menschenhand und Gotteshand in Antike und Christentum, Stuttgart, A. Hiersemann

  Haenen-van der Hout, C. G. Handschrift als signaal: wegwijzers voor ouders voor het vroegtijdig herkennen van problemen in de schrijfontwikkeling, Deventer, Ankh-Hermes

  Hall, J. G. 2003 ‘Twinning’, The Lancet

  Halpern, D. F., and S. Coren 1988 ‘Do right-handers live longer?’, Nature

  Harburg, E., A. Feldstein and J. Papsdorf 1978 ‘Handedness and smoking’, Perceptual and Motor Skills

  Hardyck, C., and L. F. Petrinovitch 1977 ‘Left-handedness’, Psychological Bulletin

  —, R. Goldman and L. F. Petrinovitch 1975 ‘Handedness and sex, race and age’, Human Biology

  —, L. F. Petrinovitch and R. D. Goldman 1976 ‘Left-handedness and Cognitive Deficit’, Cortex

 

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