| Title |
The corpus callosum as anatomical marker of intelligence? A critical examination in a large-scale developmental study
|
|---|---|
| Published in |
Brain Structure and Function, August 2017
|
| DOI | 10.1007/s00429-017-1493-0 |
| Pubmed ID | |
| Authors |
René Westerhausen, Charline-Marie Friesen, Darius A. Rohani, Stine K. Krogsrud, Christian K. Tamnes, Jon S. Skranes, Asta K. Håberg, Anders M. Fjell, Kristine B. Walhovd |
| Abstract |
Intellectual abilities are supported by a large-scale fronto-parietal brain network distributed across both cerebral hemispheres. This bihemispheric network suggests a functional relevance of inter-hemispheric coordination, a notion which is supported by a series of recent structural magnetic resonance imaging (MRI) studies demonstrating correlations between intelligence scores (IQ) and corpus-callosum anatomy. However, these studies also reveal an age-related dissociation: mostly positive associations are reported in adult samples, while negative associations are found in developing samples. In the present study, we re-examine the association between corpus callosum and intelligence measures in a large (734 datasets from 495 participants) developmental mixed cross-sectional and longitudinal sample (6.4-21.9 years) using raw test scores rather than deviation IQ measures to account for the ongoing cognitive development in this age period. Analyzing mid-sagittal measures of regional callosal thickness, a positive association in the splenium of the corpus callosum was found for both verbal and performance raw test scores. This association was not present when the participants' age was considered in the analysis. Thus, we did not reveal any association that cannot be explained by a temporal co-occurrence of overall developmental trends in intellectual abilities and corpus callosum maturation in the present developing sample. |
X Demographics
The data shown below were collected from the profiles of 13 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 4 | 31% |
| Norway | 3 | 23% |
| Netherlands | 2 | 15% |
| Brazil | 1 | 8% |
| Unknown | 3 | 23% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 10 | 77% |
| Scientists | 3 | 23% |
Mendeley readers
The data shown below were compiled from readership statistics for 47 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 47 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Master | 9 | 19% |
| Student > Bachelor | 6 | 13% |
| Researcher | 5 | 11% |
| Student > Ph. D. Student | 4 | 9% |
| Student > Postgraduate | 3 | 6% |
| Other | 6 | 13% |
| Unknown | 14 | 30% |
| Readers by discipline | Count | As % |
|---|---|---|
| Neuroscience | 7 | 15% |
| Psychology | 5 | 11% |
| Medicine and Dentistry | 5 | 11% |
| Engineering | 3 | 6% |
| Biochemistry, Genetics and Molecular Biology | 2 | 4% |
| Other | 9 | 19% |
| Unknown | 16 | 34% |
Attention Score in Context
This research output has an Altmetric Attention Score of 53. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 11 May 2023.
All research outputs
#751,124
of 24,286,850 outputs
Outputs from Brain Structure and Function
#36
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Outputs of similar age
#16,255
of 321,951 outputs
Outputs of similar age from Brain Structure and Function
#3
of 47 outputs
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