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Multisensory stimuli elicit altered oscillatory brain responses at gamma frequencies in patients with schizophrenia

Overview of attention for article published in Frontiers in Human Neuroscience, November 2014
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Title
Multisensory stimuli elicit altered oscillatory brain responses at gamma frequencies in patients with schizophrenia
Published in
Frontiers in Human Neuroscience, November 2014
DOI 10.3389/fnhum.2014.00788
Pubmed ID
Authors

David B. Stone, Brian A. Coffman, Juan R. Bustillo, Cheryl J. Aine, Julia M. Stephen

Abstract

Deficits in auditory and visual unisensory responses are well documented in patients with schizophrenia; however, potential abnormalities elicited from multisensory audio-visual stimuli are less understood. Further, schizophrenia patients have shown abnormal patterns in task-related and task-independent oscillatory brain activity, particularly in the gamma frequency band. We examined oscillatory responses to basic unisensory and multisensory stimuli in schizophrenia patients (N = 46) and healthy controls (N = 57) using magnetoencephalography (MEG). Time-frequency decomposition was performed to determine regions of significant changes in gamma band power by group in response to unisensory and multisensory stimuli relative to baseline levels. Results showed significant behavioral differences between groups in response to unisensory and multisensory stimuli. In addition, time-frequency analysis revealed significant decreases and increases in gamma-band power in schizophrenia patients relative to healthy controls, which emerged both early and late over both sensory and frontal regions in response to unisensory and multisensory stimuli. Unisensory gamma-band power predicted multisensory gamma-band power differently by group. Furthermore, gamma-band power in these regions predicted performance in select measures of the Measurement and Treatment Research to Improve Cognition in Schizophrenia (MATRICS) test battery differently by group. These results reveal a unique pattern of task-related gamma-band power in schizophrenia patients relative to controls that may indicate reduced inhibition in combination with impaired oscillatory mechanisms in patients with schizophrenia.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 58 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 1 2%
Netherlands 1 2%
United States 1 2%
Unknown 55 95%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 14 24%
Student > Bachelor 7 12%
Researcher 6 10%
Professor > Associate Professor 6 10%
Other 3 5%
Other 10 17%
Unknown 12 21%
Readers by discipline Count As %
Neuroscience 17 29%
Psychology 13 22%
Agricultural and Biological Sciences 5 9%
Medicine and Dentistry 3 5%
Biochemistry, Genetics and Molecular Biology 1 2%
Other 4 7%
Unknown 15 26%
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 16 February 2015.
All research outputs
#13,415,768
of 22,769,322 outputs
Outputs from Frontiers in Human Neuroscience
#4,065
of 7,139 outputs
Outputs of similar age
#125,498
of 262,191 outputs
Outputs of similar age from Frontiers in Human Neuroscience
#146
of 231 outputs
Altmetric has tracked 22,769,322 research outputs across all sources so far. This one is in the 39th percentile – i.e., 39% of other outputs scored the same or lower than it.
So far Altmetric has tracked 7,139 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 14.5. This one is in the 41st percentile – i.e., 41% 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 262,191 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 50% of its contemporaries.
We're also able to compare this research output to 231 others from the same source and published within six weeks on either side of this one. This one is in the 35th percentile – i.e., 35% of its contemporaries scored the same or lower than it.