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The relationship between laterality and numerical and spatial ability.

C C French1, E A Attree

  • 1Department of Psychology, University of London Goldsmiths' College, New Cross, U.K.

Neuropsychologia
|January 1, 1989
PubMed
Summary
This summary is machine-generated.

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This study explored the link between handedness and math skills, finding no overall connection. However, a small effect on numerical ability was observed in young females, not supporting right shift theory.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Genetics

Background:

  • Right shift theory proposes a link between genetic factors influencing handedness and cognitive abilities.
  • Investigating laterality and mathematical skills can provide insights into the neurobiological underpinnings of cognition.

Purpose of the Study:

  • To investigate hypotheses derived from right shift theory regarding the relationship between laterality and mathematical ability.
  • To examine numerical and spatial abilities in relation to genetic distributions associated with handedness.

Main Methods:

  • 129 subjects were grouped based on manual skills, presumably reflecting different genotypes (rs++, rs+-, rs--).
  • Numerical and spatial abilities were assessed in these subgroups.
  • Data analysis included considering the whole group and a subgroup of 96 young female subjects.

Related Experiment Videos

Main Results:

  • No significant relationship between laterality and mathematical ability was found for the entire group.
  • Marginal effects for numerical ability were observed in the subgroup of young female subjects.
  • The observed results did not align with the predictions of right shift theory.

Conclusions:

  • The study found limited evidence supporting a direct link between laterality, genetic factors, and mathematical ability as predicted by right shift theory.
  • Further research may be needed to explore potential sex-specific or nuanced relationships between handedness and cognitive functions.