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Age-dependent and -independent changes in attention-deficit/hyperactivity disorder (ADHD) during spatial working memory performance

Overview of attention for article published in World Journal of Biological Psychiatry, December 2015
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Title
Age-dependent and -independent changes in attention-deficit/hyperactivity disorder (ADHD) during spatial working memory performance
Published in
World Journal of Biological Psychiatry, December 2015
DOI 10.3109/15622975.2015.1112034
Pubmed ID
Authors

Steffen Bollmann, Carmen Ghisleni, Simon-Shlomo Poil, Ernst Martin, Juliane Ball, Dominique Eich-Höchli, Peter Klaver, Ruth L. O'Gorman, Lars Michels, Daniel Brandeis

Abstract

Attention-Deficit/Hyperactivity Disorder (ADHD) has been associated with spatial working memory as well as frontostriatal core deficits. However, it is still unclear how the link between these frontostriatal deficits and working memory function in ADHD differs in children and adults. This study examined spatial working memory in adults and children with ADHD, focusing on identifying regions demonstrating age-invariant or age-dependent abnormalities. We used functional magnetic resonance imaging to examine a group of 26 children and 35 adults to study load manipulated spatial working memory in patients and controls. In comparison to healthy controls, patients demonstrated reduced positive parietal and frontostriatal load effects, i.e., less increase in brain activity from low to high load, despite similar task performance. In addition, younger patients showed negative load effects, i.e., a decrease in brain activity from low to high load, in medial prefrontal regions. Load effect differences between ADHD and controls that differed between age groups were found predominantly in prefrontal regions. Age-invariant load effect differences occurred predominantly in frontostriatal regions. The age-dependent deviations support the role of prefrontal maturation and compensation in ADHD, while the age-invariant alterations observed in frontostriatal regions provide further evidence that these regions reflect a core pathophysiology in ADHD.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 71 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 71 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 15 21%
Student > Ph. D. Student 12 17%
Student > Master 11 15%
Student > Doctoral Student 7 10%
Student > Bachelor 4 6%
Other 5 7%
Unknown 17 24%
Readers by discipline Count As %
Psychology 16 23%
Neuroscience 10 14%
Nursing and Health Professions 7 10%
Medicine and Dentistry 4 6%
Business, Management and Accounting 2 3%
Other 11 15%
Unknown 21 30%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. 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 09 January 2016.
All research outputs
#17,286,379
of 25,374,647 outputs
Outputs from World Journal of Biological Psychiatry
#418
of 730 outputs
Outputs of similar age
#240,084
of 395,917 outputs
Outputs of similar age from World Journal of Biological Psychiatry
#8
of 17 outputs
Altmetric has tracked 25,374,647 research outputs across all sources so far. This one is in the 21st percentile – i.e., 21% of other outputs scored the same or lower than it.
So far Altmetric has tracked 730 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 8.6. This one is in the 33rd percentile – i.e., 33% of its peers scored the same or lower than it.
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 395,917 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 30th percentile – i.e., 30% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 17 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 52% of its contemporaries.