Is There a Correlation Between the Number of Brain Cells and IQ?
Cereb Cortex
; 31(1): 650-657, 2021 01 01.
Article
em En
| MEDLINE
| ID: mdl-32939536
ABSTRACT
Our access to a unique material of postmortem brains obtained from decades of data collection enabled a stereological analysis of the neuron numbers and correlation of results with individual premorbid intelligence quotient (IQ) data. In our sample of 50 brains from men, we find that IQ does not correlate with the number of brain cells in the human neocortex and was only weakly correlated to brain weight. Our stereological examination extended to measures of several other parameters that might be of relevance to intelligence, including numbers of cerebral glial cells (astrocytes, oligodendrocytes, and microglia) and the volume of key areas in the gray and white matter and of the cerebral ventricles, also showing near-zero nonsignificant correlations to IQ.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Oligodendroglia
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Astrócitos
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Microglia
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Neurônios
Limite:
Humans
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Male
Idioma:
En
Revista:
Cereb Cortex
Assunto da revista:
CEREBRO
Ano de publicação:
2021
Tipo de documento:
Article
País de afiliação:
Dinamarca