TY - JOUR
T1 - Population receptive field estimates of human auditory cortex
AU - Thomas, Jessica M.
AU - Huber, Elizabeth
AU - Stecker, G. Christopher
AU - Boynton, Geoffrey M.
AU - Saenz, Melissa
AU - Fine, Ione
N1 - Publisher Copyright:
© 2014 Elsevier Inc.
PY - 2015/1/5
Y1 - 2015/1/5
N2 - 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).
AB - 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).
KW - Auditory cortex
KW - Functional magnetic resonance imaging (fMRI)
KW - Population receptive field (pRF)
KW - Tonotopy
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UR - http://www.scopus.com/inward/citedby.url?scp=84914124275&partnerID=8YFLogxK
U2 - 10.1016/j.neuroimage.2014.10.060
DO - 10.1016/j.neuroimage.2014.10.060
M3 - Article
C2 - 25449742
AN - SCOPUS:84914124275
SN - 1053-8119
VL - 105
SP - 428
EP - 439
JO - NeuroImage
JF - NeuroImage
ER -