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Aging Potentiates Lateral but Not Local Inhibition of Orientation Processing in Primary Visual Cortex

Overview of attention for article published in Frontiers in Aging Neuroscience, February 2018
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Title
Aging Potentiates Lateral but Not Local Inhibition of Orientation Processing in Primary Visual Cortex
Published in
Frontiers in Aging Neuroscience, February 2018
DOI 10.3389/fnagi.2018.00014
Pubmed ID
Authors

Zhengchun Wang, Shan Yu, Yu Fu, Tzvetomir Tzvetanov, Yifeng Zhou

Abstract

Aging-related declines in vision can decrease well-being of the elderly. Concerning early sensory changes as in the primary visual cortex, physiological and behavioral reports seem contradictory. Neurophysiological studies on orientation tuning properties suggested that neuronal changes might come from decreased cortical local inhibition. However, behavioral results either showed no clear deficits in orientation processing in older adults, or proposed stronger surround suppression. Through psychophysical experiments and computational modeling, we resolved these discrepancies by suggesting that lateral inhibition increased in older adults while neuronal orientation tuning widths, related to local inhibition, stayed globally intact across age. We confirmed this later result by re-analyzing published neurophysiological data, which showed no systematic tuning width changes, but instead displayed a higher neuronal noise with aging. These results suggest a stronger lateral inhibition and mixed effects on local inhibition during aging, revealing a more complex picture of age-related effects in the central visual system than people previously thought.

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The data shown below were collected from the profiles of 2 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 17 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 17 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 6 35%
Student > Master 2 12%
Researcher 2 12%
Student > Bachelor 1 6%
Professor > Associate Professor 1 6%
Other 0 0%
Unknown 5 29%
Readers by discipline Count As %
Neuroscience 4 24%
Psychology 3 18%
Social Sciences 2 12%
Nursing and Health Professions 1 6%
Medicine and Dentistry 1 6%
Other 1 6%
Unknown 5 29%
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 07 February 2018.
All research outputs
#14,966,095
of 23,020,670 outputs
Outputs from Frontiers in Aging Neuroscience
#3,394
of 4,845 outputs
Outputs of similar age
#254,335
of 437,337 outputs
Outputs of similar age from Frontiers in Aging Neuroscience
#78
of 99 outputs
Altmetric has tracked 23,020,670 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 4,845 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 13.1. This one is in the 25th percentile – i.e., 25% 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 437,337 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 38th percentile – i.e., 38% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 99 others from the same source and published within six weeks on either side of this one. This one is in the 19th percentile – i.e., 19% of its contemporaries scored the same or lower than it.