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Quantifying the heritability of task-related brain activation and performance during the N-back working memory task: A twin fMRI study

Overview of attention for article published in Biological Psychology, March 2008
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  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (84th percentile)
  • High Attention Score compared to outputs of the same age and source (81st percentile)

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Title
Quantifying the heritability of task-related brain activation and performance during the N-back working memory task: A twin fMRI study
Published in
Biological Psychology, March 2008
DOI 10.1016/j.biopsycho.2008.03.006
Pubmed ID
Authors

Gabriëlla A.M. Blokland, Katie L. McMahon, Jan Hoffman, Gu Zhu, Matthew Meredith, Nicholas G. Martin, Paul M. Thompson, Greig I. de Zubicaray, Margaret J. Wright

Abstract

Working memory-related brain activation has been widely studied, and impaired activation patterns have been reported for several psychiatric disorders. We investigated whether variation in N-back working memory brain activation is genetically influenced in 60 pairs of twins, (29 monozygotic (MZ), 31 dizygotic (DZ); mean age 24.4+/-1.7S.D.). Task-related brain response (BOLD percent signal difference of 2 minus 0-back) was measured in three regions of interest. Although statistical power was low due to the small sample size, for middle frontal gyrus, angular gyrus, and supramarginal gyrus, the MZ correlations were, in general, approximately twice those of the DZ pairs, with non-significant heritability estimates (14-30%) in the low-moderate range. Task performance was strongly influenced by genes (57-73%) and highly correlated with cognitive ability (0.44-0.55). This study, which will be expanded over the next 3 years, provides the first support that individual variation in working memory-related brain activation is to some extent influenced by genes.

X Demographics

X Demographics

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 170 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United States 6 4%
United Kingdom 2 1%
Chile 1 <1%
Germany 1 <1%
Switzerland 1 <1%
Poland 1 <1%
Unknown 158 93%

Demographic breakdown

Readers by professional status Count As %
Researcher 36 21%
Student > Ph. D. Student 29 17%
Student > Master 19 11%
Student > Bachelor 13 8%
Professor > Associate Professor 13 8%
Other 37 22%
Unknown 23 14%
Readers by discipline Count As %
Psychology 55 32%
Medicine and Dentistry 21 12%
Neuroscience 20 12%
Agricultural and Biological Sciences 18 11%
Engineering 8 5%
Other 15 9%
Unknown 33 19%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 9. 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 07 March 2023.
All research outputs
#4,220,136
of 25,436,226 outputs
Outputs from Biological Psychology
#395
of 1,809 outputs
Outputs of similar age
#14,929
of 95,720 outputs
Outputs of similar age from Biological Psychology
#3
of 11 outputs
Altmetric has tracked 25,436,226 research outputs across all sources so far. Compared to these this one has done well and is in the 83rd percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,809 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 11.2. This one has done well, scoring higher than 78% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 95,720 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 84% of its contemporaries.
We're also able to compare this research output to 11 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 81% of its contemporaries.