Trial reportThe Journal of neuroscience : the official journal of the Society for Neuroscience2002
Chromatic light adaptation measured using functional magnetic resonance imaging.
Trial report in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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.
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.
Who cites it
10 citing papers in PubMed, 33 citations in OpenAlex.
- Do common mechanisms of adaptation mediate color discrimination and appearance? Uniform backgrounds.Journal of the Optical Society of America. A, Optics, image science, and vision · 2005Trial
- Training-induced changes in population receptive field properties in visual cortex: Impact of eccentric vision training on population receptive field properties and the crowding effect.Journal of vision · 2024Article
- Visual mode switching: Improved general compensation for environmental color changes requires only one exposure per day.Journal of vision · 2022Article
- Restoration of retinal structure and function after selective photocoagulation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2013Article
- A potential mechanism for compensation in the blue-yellow visual channel.Frontiers in human neuroscience · 2013Article
- Adaptation and visual coding.Journal of vision · 2011Review
- Early suppressive mechanisms and the negative blood oxygenation level-dependent response in human visual cortex.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2010Article
- Plasticity and stability of visual field maps in adult primary visual cortex.Nature reviews. Neuroscience · 2009Review
- Visual field map clusters in human cortex.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2005Review
- Physiological basis and image processing in functional magnetic resonance imaging: neuronal and motor activity in brain.Biomedical engineering online · 2004Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
Sensitivity changes, beginning at the first stages of visual transduction, permit neurons with modest dynamic range to respond to contrast variations across an enormous range of mean illumination. We have used functional magnetic resonance imaging (fMRI) to investigate how these sensitivity changes are controlled within the visual pathways. We measured responses in human visual area V1 to a constant-amplitude, contrast-reversing probe presented on a range of mean backgrounds. We found that signals from probes initiated in the L and M cones were affected by backgrounds that changed the mean absorption rates in the L and M cones, but not by background changes seen only by the S cones. Similarly, signals from S cone-initiated probes were altered by background changes in the S cones, but not by background changes in the L and M cones. Performance in psychophysical tests under similar conditions closely mirrored the changes in V1 fMRI signals. We compare our data with simulations of the visual pathway from photon catch rates to cortical blood-oxygen level-dependent signals and show that the quantitative fMRI signals are consistent with a simple model of mean-field adaptation based on Naka-Rushton (Naka and Rushton, 1966) adaptation mechanisms within cone photoreceptor classes.
Indexed as
Identifiers
12223569PMC6758099W2107132744What OpenQuestion holds
Registered trials
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.