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Sex differences in cognition: a function of maturation rate?
Science (New York, N.Y.)
|May 7, 1976
Summary
Early maturing adolescents excel in verbal skills, while late maturing ones show stronger spatial abilities. This suggests physical maturation rates influence brain organization and cognitive sex differences.
Area of Science:
- Neuroscience
- Developmental Psychology
- Cognitive Science
Background:
- Adolescent maturation rates vary significantly between individuals.
- Cognitive abilities, such as verbal and spatial skills, show sex-differentiated patterns.
- The relationship between physical maturation and brain organization is not fully understood.
Purpose of the Study:
- To investigate the association between adolescent physical maturation timing and cognitive abilities.
- To explore sex differences in cognitive performance in relation to maturation.
- To examine the link between maturation, brain lateralization for speech, and cognitive sex differences.
Main Methods:
- Assessed verbal and spatial abilities in early and late maturing adolescent groups.
- Evaluated speech lateralization in relation to maturation timing.
- Correlated physical maturation rates with cognitive test performance and brain organization.
Main Results:
- Early maturing adolescents demonstrated superior verbal abilities compared to spatial abilities.
- Late maturing adolescents exhibited the reverse pattern, excelling in spatial over verbal skills.
- Late maturing individuals showed greater speech lateralization than early maturing ones.
Conclusions:
- Adolescent maturation timing is associated with distinct patterns of cognitive strengths.
- Differential rates of physical maturation may underlie observed sex differences in mental abilities.
- Maturation-related differences in cortical organization likely contribute to cognitive sex disparities.
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