Intersession reliability of population receptive field estimates

van Dijk, J.A., de Haas, B., Moutsiana, C. and Schwarzkopf, D.S. 2017. Intersession reliability of population receptive field estimates. NeuroImage. 143, pp. 293-303. doi:10.1016/j.neuroimage.2016.09.013

TitleIntersession reliability of population receptive field estimates
Authorsvan Dijk, J.A., de Haas, B., Moutsiana, C. and Schwarzkopf, D.S.
Abstract

Population receptive field (pRF) analysis is a popular method to infer spatial selectivity of voxels in visual cortex. However, it remains largely untested how stable pRF estimates are over time. Here we measured the intersession reliability of pRF parameter estimates for the central visual field and near periphery, using a combined wedge and ring stimulus containing natural images. Sixteen healthy human participants completed two scanning sessions separated by 10–114 days. Individual participants showed very similar visual field maps for V1-V4 on both sessions. Intersession reliability for eccentricity and polar angle estimates was close to ceiling for most visual field maps (r>.8 for V1-3). PRF size and cortical magnification (CMF) estimates showed strong but lower overall intersession reliability (r≈.4–.6). Group level results for pRF size and CMF were highly similar between sessions. Additional control experiments confirmed that reliability does not depend on the carrier stimulus used and that reliability for pRF size and CMF is high for sessions acquired on the same day (r>.6). Our results demonstrate that pRF mapping is highly reliable across sessions.

JournalNeuroImage
Journal citation143, pp. 293-303
ISSN1053-8119
Year2017
PublisherElsevier
Publisher's versionReliability_Manuscript_published_2016.pdf
Digital Object Identifier (DOI)doi:10.1016/j.neuroimage.2016.09.013
Publication dates
Published online09 Sep 2016
LicenseCC BY 4.0

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