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Alterations in the hippocampus and thalamus in individuals at high risk for psychosis

Overview of attention for article published in Schizophrenia, September 2016
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  • Good Attention Score compared to outputs of the same age (69th percentile)

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Title
Alterations in the hippocampus and thalamus in individuals at high risk for psychosis
Published in
Schizophrenia, September 2016
DOI 10.1038/npjschz.2016.33
Pubmed ID
Authors

Fabienne Harrisberger, Roman Buechler, Renata Smieskova, Claudia Lenz, Anna Walter, Laura Egloff, Kerstin Bendfeldt, Andor E Simon, Diana Wotruba, Anastasia Theodoridou, Wulf Rössler, Anita Riecher-Rössler, Undine E Lang, Karsten Heekeren, Stefan Borgwardt

Abstract

Reduction in hippocampal volume is a hallmark of schizophrenia and already present in the clinical high-risk state. Nevertheless, other subcortical structures, such as the thalamus, amygdala and pallidum can differentiate schizophrenia patients from controls. We studied the role of hippocampal and subcortical structures in clinical high-risk individuals from two cohorts. High-resolution T1-weighted structural MRI brain scans of a total of 91 clinical high-risk individuals and 64 healthy controls were collected in two centers. The bilateral volume of the hippocampus, the thalamus, the caudate, the putamen, the pallidum, the amygdala, and the accumbens were automatically segmented using FSL-FIRST. A linear mixed-effects model and a prospective meta-analysis were applied to assess group-related volumetric differences. We report reduced hippocampal and thalamic volumes in clinical high-risk individuals compared to healthy controls. No volumetric alterations were detected for the caudate, the putamen, the pallidum, the amygdala, or the accumbens. Moreover, we found comparable medium effect sizes for group-related comparison of the thalamus in the two analytical methods. These findings underline the relevance of specific alterations in the hippocampal and subcortical volumes in the high-risk state. Further analyses may allow hippocampal and thalamic volumes to be used as biomarkers to predict psychosis.

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X Demographics

The data shown below were collected from the profiles of 5 X users who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 55 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 55 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 10 18%
Researcher 9 16%
Student > Master 6 11%
Student > Bachelor 4 7%
Other 3 5%
Other 10 18%
Unknown 13 24%
Readers by discipline Count As %
Neuroscience 13 24%
Medicine and Dentistry 6 11%
Psychology 5 9%
Engineering 2 4%
Agricultural and Biological Sciences 1 2%
Other 3 5%
Unknown 25 45%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 5. 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 22 June 2017.
All research outputs
#7,047,316
of 25,373,627 outputs
Outputs from Schizophrenia
#214
of 415 outputs
Outputs of similar age
#99,999
of 330,327 outputs
Outputs of similar age from Schizophrenia
#6
of 7 outputs
Altmetric has tracked 25,373,627 research outputs across all sources so far. This one has received more attention than most of these and is in the 71st percentile.
So far Altmetric has tracked 415 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 16.2. This one is in the 47th percentile – i.e., 47% 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 330,327 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 69% of its contemporaries.
We're also able to compare this research output to 7 others from the same source and published within six weeks on either side of this one.