Hippocampal structure and human cognition: Key role of spatial processing and evidence supporting the efficiency hypothesis in females

Roberto Colom, Jason L. Stein, Priya Rajagopalan, Kenia Martínez, David Hermel, Yalin Wang, Juan Álvarez-Linera, Miguel Burgaleta, Ma Ángeles Quiroga, Pei Chun Shih, Paul M. Thompson

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

Here we apply a method for automated segmentation of the hippocampus in 3D high-resolution structural brain MRI scans. One hundred and four healthy young adults completed twenty one tasks measuring abstract, verbal, and spatial intelligence, along with working memory, executive control, attention, and processing speed. After permutation tests corrected for multiple comparisons across vertices (p< .05), significant relationships were found for spatial intelligence, spatial working memory, and spatial executive control. Interactions with sex revealed significant relationships with the general factor of intelligence (g), along with abstract and spatial intelligence. These correlations were mainly positive for males but negative for females, which might support the efficiency hypothesis in women. Verbal intelligence, attention, and processing speed were not related to hippocampal structural differences.

Original languageEnglish (US)
Pages (from-to)129-140
Number of pages12
JournalIntelligence
Volume41
Issue number2
DOIs
StatePublished - Mar 1 2013
Externally publishedYes

Keywords

  • Cognition
  • Hippocampus
  • Intelligence
  • Sex differences

ASJC Scopus subject areas

  • Experimental and Cognitive Psychology
  • Developmental and Educational Psychology
  • Arts and Humanities (miscellaneous)

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    Colom, R., Stein, J. L., Rajagopalan, P., Martínez, K., Hermel, D., Wang, Y., Álvarez-Linera, J., Burgaleta, M., Quiroga, M. Á., Shih, P. C., & Thompson, P. M. (2013). Hippocampal structure and human cognition: Key role of spatial processing and evidence supporting the efficiency hypothesis in females. Intelligence, 41(2), 129-140. https://doi.org/10.1016/j.intell.2013.01.002