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Investigating Cortical Inhibition in First-Degree Relatives and Probands in Schizophrenia

Overview of attention for article published in Scientific Reports, February 2017
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Title
Investigating Cortical Inhibition in First-Degree Relatives and Probands in Schizophrenia
Published in
Scientific Reports, February 2017
DOI 10.1038/srep43629
Pubmed ID
Authors

Natasha Radhu, Luis Garcia Dominguez, Tiffany A. Greenwood, Faranak Farzan, Mawahib O. Semeralul, Margaret A. Richter, James L. Kennedy, Daniel M. Blumberger, Robert Chen, Paul B. Fitzgerald, Zafiris J. Daskalakis

Abstract

Deficits in GABAergic inhibitory neurotransmission are a reliable finding in schizophrenia (SCZ) patients. Previous studies have reported that unaffected first-degree relatives of patients with SCZ demonstrate neurophysiological abnormalities that are intermediate between probands and healthy controls. In this study, first-degree relatives of patients with SCZ and their related probands were investigated to assess frontal cortical inhibition. Long-interval cortical inhibition (LICI) was measured from the dorsolateral prefrontal cortex (DLPFC) using combined transcranial magnetic stimulation (TMS) and electroencephalography (EEG). The study presents an extended sample of 129 subjects (66 subjects have been previously reported): 19 patients with SCZ or schizoaffective disorder, 30 unaffected first-degree relatives of these SCZ patients, 13 obsessive-compulsive disorder (OCD) patients, 18 unaffected first-degree relatives of these OCD patients and 49 healthy subjects. In the DLPFC, cortical inhibition was significantly decreased in patients with SCZ compared to healthy subjects. First-degree relatives of patients with SCZ showed significantly more cortical inhibition than their SCZ probands. No differences were demonstrated between first-degree relatives of SCZ patients and healthy subjects. Taken together, these findings show that more studies are needed to establish an objective biological marker for potential diagnostic usage in severe psychiatric disorders.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 62 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 62 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 12 19%
Student > Bachelor 7 11%
Student > Master 6 10%
Student > Doctoral Student 5 8%
Other 4 6%
Other 8 13%
Unknown 20 32%
Readers by discipline Count As %
Neuroscience 16 26%
Medicine and Dentistry 15 24%
Engineering 3 5%
Psychology 3 5%
Pharmacology, Toxicology and Pharmaceutical Science 1 2%
Other 3 5%
Unknown 21 34%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. 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 01 March 2017.
All research outputs
#14,924,861
of 22,957,478 outputs
Outputs from Scientific Reports
#72,731
of 123,954 outputs
Outputs of similar age
#187,893
of 312,054 outputs
Outputs of similar age from Scientific Reports
#2,721
of 4,646 outputs
Altmetric has tracked 22,957,478 research outputs across all sources so far. This one is in the 32nd percentile – i.e., 32% of other outputs scored the same or lower than it.
So far Altmetric has tracked 123,954 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 18.2. This one is in the 37th percentile – i.e., 37% 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 312,054 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 36th percentile – i.e., 36% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 4,646 others from the same source and published within six weeks on either side of this one. This one is in the 37th percentile – i.e., 37% of its contemporaries scored the same or lower than it.