Keywords: Gray Matter, fMRI (task based), saccade, high-field, modelling
Here we implemented a variation of the population receptive field model (pRF, Dumoulin et al., 2008; Fracasso et al., 2016), to model blood oxygenation level dependent (BOLD) signal and obtain estimates of saccade tuning direction and width from human PPC, to obtain estimates of the population motor fields (pMF).
Saccade tuning width shows a novel organizational property of human posterior parietal cortex, unveiling a gradient from posterior to anterior PPC, with tuning width steadily increasing along the posterior-anterior axis.
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