Evidence map›Paper›PMID 25416722›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2015

Chromatic and Achromatic Spatial Resolution of Local Field Potentials in Awake Cortex.

Michael Jansen, Xiaobing Li, Reza Lashgari, Jens Kremkow, Yulia Bereshpolova, Harvey A Swadlow, Qasim Zaidi, Jose-Manuel Alonso

Open access · hybridAbstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.5field-weighted citation impact, top 35% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
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  5. Review
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  8. Article
  9. Long-wavelength (reddish) hues induce unusually large gamma oscillations in the primate primary visual cortex.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  10. Nonselective Wiring Accounts for Red-Green Opponency in Midget Ganglion Cells of the Primate Retina.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2018
    Article
  11. Review
  12. Article
  13. Article
  14. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Michael JansenDepartment of Biological Sciences and.
Xiaobing LiDepartment of Biological Sciences and.
Reza LashgariDepartment of Biological Sciences and Department of Biomedical Engineering, School of Electrical Engineering, Iran University of Science and Technology, Tehran, Iran.
Jens KremkowDepartment of Biological Sciences and.
Yulia BereshpolovaPsychology, University of Connecticut, Storrs, CT, USA.
Harvey A SwadlowDepartment of Biological Sciences and Psychology, University of Connecticut, Storrs, CT, USA.
Qasim ZaidiGraduate Center for Vision Research, SUNY College of Optometry, New York, NY, USA.
Jose-Manuel AlonsoDepartment of Biological Sciences and Psychology, University of Connecticut, Storrs, CT, USA.
University of Connecticut · USIran University of Science and Technology · IRSUNY College of Optometry · US

Funding

NEURAL BASIS OF SHAPE FROM TEXTURER01EY013312 · NEI · STATE COLLEGE OF OPTOMETRY · PI ZAIDI, QASIM · 2001 to 2015
$3.8M
NEI NIH HHS EY020679NEI NIH HHS EY02067901NEI NIH HHS EY07556NEI NIH HHS EY13312NEI NIH HHS R01 EY013312
6 · The paper itself

Abstract

Local field potentials (LFPs) have become an important measure of neuronal population activity in the brain and could provide robust signals to guide the implant of visual cortical prosthesis in the future. However, it remains unclear whether LFPs can detect weak cortical responses (e.g., cortical responses to equiluminant color) and whether they have enough visual spatial resolution to distinguish different chromatic and achromatic stimulus patterns. By recording from awake behaving macaques in primary visual cortex, here we demonstrate that LFPs respond robustly to pure chromatic stimuli and exhibit ∼2.5 times lower spatial resolution for chromatic than achromatic stimulus patterns, a value that resembles the ratio of achromatic/chromatic resolution measured with psychophysical experiments in humans. We also show that, although the spatial resolution of LFP decays with visual eccentricity as is also the case for single neurons, LFPs have higher spatial resolution and show weaker response suppression to low spatial frequencies than spiking multiunit activity. These results indicate that LFP recordings are an excellent approach to measure spatial resolution from local populations of neurons in visual cortex including those responsive to color.

Indexed as

Brain WavesAction PotentialsAnimalsColor PerceptionMacaca mulattaMaleNeuronsPhotic StimulationVisual CortexVisual Fieldsarea V1colorLFPreceptive fieldstriate cortex

Identifiers

PMID25416722
PMCPMC4585519
OpenAlexW2140993590

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.