Hormones and handedness

  • Mulligan J
  • Stratford R
  • Bailey B
 et al. 
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The Wessex Growth Study has monitored the growth and psychological development of short normal (SN) and average height control subjects since they entered school in 1985/1986. During psychometric testing, we found that 25% SN compared to 9% control subjects wrote with their left hand. The short group also attained significantly lower scores on measures of IQ and attainment and displayed less internalisation of control. Laterality, however, is thought to be influenced by the intrauterine environment and has been associated with pubertal delay. At recruitment, short children had a relatively low birth weight, delayed bone age and were more likely than controls to be short for family.

Author-supplied keywords

  • Cognitive development
  • Handedness
  • Short stature

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  • Jean Mulligan

  • R. J. Stratford

  • B. J.R. Bailey

  • E. S. Mccaughey

  • P. R. Betts

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