Evidence map›Paper›PMID 28031176›Full record

ArticleCerebral cortex (New York, N.Y. : 1991)2017

Evidence for an Optimal Algorithm Underlying Signal Combination in Human Visual Cortex.

Daniel H Baker, Alex R Wade

Abstract read
In one paragraph

Article in Cerebral cortex (New York, N.Y. : 1991), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Binocular summation revisited: Beyond √2.Psychological bulletin · 2018
    Pooled it
  2. Article
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  9. Local Interactions between Steady-State Visually Evoked Potentials at Nearby Flickering Frequencies.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article
  10. Steady-state measures of visual suppression.PLoS computational biology · 2021
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  14. Contrast Normalization Accounts for Binocular Interactions in Human Striate and Extra-striate Visual Cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
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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.

Daniel H BakerDepartment of Psychology, University of York, Heslington, York YO10 5DD, UK.
Alex R WadeDepartment of Psychology, University of York, Heslington, York YO10 5DD, UK.

Funding

Wellcome Trust 105624
6 · The paper itself

Abstract

How does the cortex combine information from multiple sources? We tested several computational models against data from steady-state electroencephalography (EEG) experiments in humans, using periodic visual stimuli combined across either retinal location or eye-of-presentation. A model in which signals are raised to an exponent before being summed in both the numerator and the denominator of a gain control nonlinearity gave the best account of the data. This model also predicted the pattern of responses in a range of additional conditions accurately and with no free parameters, as well as predicting responses at harmonic and intermodulation frequencies between 1 and 30 Hz. We speculate that this model implements the optimal algorithm for combining multiple noisy inputs, in which responses are proportional to the weighted sum of both inputs. This suggests a novel purpose for cortical gain control: implementing optimal signal combination via mutual inhibition, perhaps explaining its ubiquity as a neural computation.

Indexed as

AlgorithmsModels, NeurologicalModels, StatisticalAdultBrain MappingComputer SimulationEvidence-Based MedicineEvoked Potentials, VisualFemaleHumansInformation Storage and RetrievalMaleNerve NetNeural InhibitionPhotic StimulationSynaptic Transmissiongain controlKalman filtersignal combinationvisual cortex

Identifiers

PMID28031176
PMCPMC5903417

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.