This replication study with 96 highly gifted and 192 less gifted control subjects (all 12 years old) found the highly gifted (students with extremely high scores on the Scholastic Aptitude Test) were disproportionately male. It did not find that the highly gifted were more likely to be left handed or to have allergies. (Author/DB)

This study compared hand preference and motor skills in 20 children with autism with 40 children either typically developing or with developmental delays. Results indicated that the lack of hand preference in children with autism was not a function of their cognitive delay or a lack of motor skills. Results supported the bilateral brain…

A study of children (ages 3-5 and 11-13) with autism (n=35), learning disabilities (n=26), or no disabilities (n=90) found that the nondisabled children were more lateralized than others in degree and consistency of handedness. No evidence was found of a dissociation of hand skill and hand preference in children with autism, compared to others.…

Discusses how handedness at one level may give rise to handedness at another. Presents examples from plants and animals, molecules, atoms, to elementary particles. Examines the chiral symmetry in life and when it starts. (YP)

Twenty-four adults with mild mental retardation were compared with equal-mental age children and adults without mental retardation on tactile processing asymmetries. Results suggest that hemispheric processing is dependent on information processing requirements rather than type of stimulus. (Author/JDD)

This study of 38 right-handed children (age range 90 to 201 months) with dyslexia found characteristic patterns of organization of intellectual functions, of hemispheric specialization, and of reading errors in the subtypes, identified as linguistic dyslexia, perceptual dyslexia, and mixed dyslexia. (DB)