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bioRxiv · 10.1101/194621

Real Time Estimation of Population Receptive Fields Using Gradient Descent

Senden, M.
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Abstract

A real-time population receptive field mapping procedure based on gradient descent is proposed. Model-free receptive fields produced by the algorithm are evaluated in context of simulated data exhibiting different levels of temporally autocorrelated noise and spatial point spread. As with any model-free approach, the exact shape of receptive fields produced by the real-time algorithm depends on the stimulus. Nevertheless, estimated receptive fields show good correspondence with ground-truth receptive fields in terms of both position and size. Furthermore, fitting a parametric model to the previously obtained estimates approximates the exact shape of the true underlying receptive fields well.

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Senden, M.. 2017-09-27. Real Time Estimation of Population Receptive Fields Using Gradient Descent. https://doi.org/10.1101/194621

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