Evidence map›Paper›PMID 33073288›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2021

Scotopic Vision Is Selectively Processed in Thick-Type Columns in Human Extrastriate Cortex.

Roger B H Tootell, Shahin Nasr

Open access · hybridAbstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.6field-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

10 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Mesoscale developmental rivalry in human extrastriate visual cortex.bioRxiv : the preprint server for biology · 2025
    Article
  3. Article
  4. Article
  5. Selective Functional Connectivity between Ocular Dominance Columns in the Primary Visual Cortex.Ophthalmic medical image analysis : 11th International Workshop, OMIA 2024, held in Conjunction with MICCAI 2024, Marrakesh, Morocco, October 10, 2024, Proceedings. OMIA (Workshop) (11th : 2024 : Marrakech, Morocco) · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Interdigitated Columnar Representation of Personal Space and Visual Space in Human Parietal Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  10. Escaping the nocturnal bottleneck, and the evolution of the dorsal and ventral streams of visual processing in primates.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2022
    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

2 authors at 2 institutions in 1 country.

Roger B H TootellAthinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Boston, MA 02114, USA.
Shahin NasrAthinoula A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Boston, MA 02114, USA.
Harvard University · USMassachusetts General Hospital · US

Funding

Project 4P41EB015896 · NIBIB · MASSACHUSETTS GENERAL HOSPITAL · PI ROSEN, BRUCE R · 2012 to 2018
$9.8M
Applications of high resolution fMRI in ultra-high field (7T) in revealing developmental disorders underlying amblyopiaR01EY030434 · NEI · MASSACHUSETTS GENERAL HOSPITAL · PI Shahin Nasr · 2020 to 2026
$3.8M
System Upgrade for Siemens 7T Human MRI SystemS10OD023637 · OD · MASSACHUSETTS GENERAL HOSPITAL · PI WALD, LAWRENCE L · 2017 to 2017
$2.0M
Columnar Organization of Surface vs. Border Information in Human Areas V2 and V3R01EY026881 · NEI · MASSACHUSETTS GENERAL HOSPITAL · PI TOOTELL, ROGER B · 2016 to 2018
$1.4M
7T Translational MRI SystemS10RR019371 · NCRR · MASSACHUSETTS GENERAL HOSPITAL · PI SORENSEN, ALMA GREGORY · 2007 to 2007
$500k
NCRR NIH HHS S10 RR019371NEI NIH HHS R01 EY026881NEI NIH HHS R01 EY030434NIBIB NIH HHS P41 EB015896NIH HHS S10 OD023637
6 · The paper itself

Abstract

In humans, visual stimuli can be perceived across an enormous range of light levels. Evidence suggests that different neural mechanisms process different subdivisions of this range. For instance, in the retina, stimuli presented at very low (scotopic) light levels activate rod photoreceptors, whereas cone photoreceptors are activated relatively more at higher (photopic) light levels. Similarly, different retinal ganglion cells are activated by scotopic versus photopic stimuli. However, in the brain, it remains unknown whether scotopic versus photopic information is: 1) processed in distinct channels, or 2) neurally merged. Using high-resolution functional magnetic resonance imaging at 7 T, we confirmed the first hypothesis. We first localized thick versus thin-type columns within areas V2, V3, and V4, based on photopic selectivity to motion versus color, respectively. Next, we found that scotopic stimuli selectively activated thick- (compared to thin-) type columns in V2 and V3 (in measurements of both overlap and amplitude) and V4 (based on overlap). Finally, we found stronger resting-state functional connections between scotopically dominated area MT with thick- (compared to thin-) type columns in areas V2, V3, and V4. We conclude that scotopic stimuli are processed in partially segregated parallel streams, emphasizing magnocellular influence, from retina through middle stages of visual cortex.

Indexed as

AdultColor VisionFemaleHumansMagnetic Resonance ImagingMaleNight VisionPhotic StimulationRetinal Rod Photoreceptor CellsVisual CortexVisual PathwaysYoung Adultcortical columnfunctional connectivitymagnocellularparvocellularscotopic vision

Identifiers

PMID33073288
PMCPMC7786355
OpenAlexW3093245871

What OpenQuestion holds

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LicenceCC BY
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.