Minimizing biases in estimating the reorganization of human visual areas with BOLD retinotopic mapping

Binda, Paola; Thomas, Jessica; Boynton, Geoffrey M.; Fine, Ione

doi:10.1167/13.7.13

Cited by 71 publications

(122 citation statements)

References 31 publications

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“…Thus, frequency progression stimuli, especially when analyzed using ‘winner take all’ methods, have the potential to result in an overrepresentation of frequencies near the beginning or the end of the sweep. Analogous concerns have been described for visual retinotopic mapping methods (Binda et al, 2013; Dumoulin and Wandell, 2008; Duncan and Boynton, 2003; Haak et al, 2012), and recently discussed for tonotopic mapping methods (Langers et al, 2014a; 2014b). …”

Section: Introductionmentioning

confidence: 90%

“…Moreover, the “traveling wave” of BOLD activity induced across the cortical surface (Engel et al, 1994) by frequency progressions is likely modulated by spatiotemporal nonlinearities. Previous studies have shown that while the spatial and temporal summation of BOLD signals can be well approximated by the linear model; significant nonlinear spatiotemporal interactions do occur (Binda et al, 2013; Pihlaja et al, 2008; Zenger-Landolt and Heeger, 2003). Furthermore, estimates of best frequency based on a small number of presented frequencies tend be biased, especially near the edge of the stimulus range (Dumoulin and Wandell, 2008, Appendix B).…”

Section: Introductionmentioning

confidence: 99%

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Population receptive field estimates of human auditory cortex

et al. 2015

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Here we describe a method for measuring tonotopic maps and estimating bandwidth for voxels in human primary auditory cortex (PAC) using a modification of the population Receptive Field (pRF) model, developed for retinotopic mapping in visual cortex by Dumoulin and Wandell (2008). The pRF method reliably estimates tonotopic maps in the presence of acoustic scanner noise, and has two advantages over phase-encoding techniques. First, the stimulus design is flexible and need not be a frequency progression, thereby reducing biases due to habituation, expectation, and estimation artifacts, as well as reducing the effects of spatio-temporal BOLD nonlinearities. Second, the pRF method can provide estimates of bandwidth as a function of frequency. We find that bandwidth estimates are narrower for voxels within the PAC than in surrounding auditory responsive regions (non-PAC).

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Section: Introductionmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Population receptive field estimates of human auditory cortex

et al. 2015

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“…Importantly, these voxels were found far into the LPZ, indicating that the receptive field changes could not be easily explained by measurement artifacts at the fringe of the LPZ (Haak et al, 2012;Binda et al, 2013). Rather, they appeared to be a feature of visual cortical processing, unveiled in the absence of visual stimulation.…”

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confidence: 90%

Plasticity, and Its Limits, in Adult Human Primary Visual Cortex

2015

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Article:Haak, Koen V, Morland, Antony B orcid.org/0000-0002-6754-5545 and Engel, Stephen A (2015) Plasticity, and Its Limits, in Adult Human Primary Visual Cortex. Multisensory Research. 297-307. ISSN 2213-4808 https://doi.org/10.1163/22134808-00002496 eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. Multisensory ResearchPlasticity, and its Limits, in Adult Human Primary Visual Cortex There is an ongoing debate about whether adult human primary visual cortex (V1) is capable of large-scale cortical reorganization in response to bilateral retinal lesions. Animal models suggest that the visual neural circuitry maintains some plasticity through adulthood, and there are also a few human imaging studies in support this notion. However, the interpretation of these data has been brought into question, because there are factors besides cortical reorganization that could also explain the results. Still, how reasonable would it be to accept that adult human V1 does not reorganize itself in the face of disease? Here, we discuss new evidence for the hypothesis that adult human V1 is not as capable of reorganization as in animals and juveniles, because in adult humans, cortical reorganization would come with costs that outweigh its benefits. These costs are likely functional and visible in recent experiments on adaptation a rapid, short-term form of neural plasticity where they prevent reorganization from being sustained over the long-term. Keywords AbstractThere is an ongoing debate about whether adult human primary visual cortex (V1) is capable of

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“…The visual areas V1, V2, and V3 were manually drawn for each subject in each mesh based on a polar angle map. 27 These ROIs were mapped back into the brain volume space and used as "masks" to the analysis of the BOLD responses elicited by viewing contrast stimuli, described later.…”

Section: Retinotopic Mappingmentioning

confidence: 99%