Fig. 3: Searchlight and lower visual field biases in navigational affordance coding.
From: Early spatiotemporal dynamics of navigational affordance coding in the dorsal visual cortex
A The strength of the RSA correlation (n = 14, t > 3.75) between fMRI and navigational affordance RDMs partialling out the Gist RDM are overlaid onto partially-inflated surface reconstructions of the left (LH) and right (RH) hemispheres of a representative participant. The group-level OPA ROIs from the Scene localiser are overlaid in black. The borders of V1, V2d and V3d taken from a probabilistic atlas28 are overlaid in white and provide a good approximation to the location of dorsal early visual cortex. The middle plot represents the group-level RSA correlation t-values as a function of visual field position. B Bars represent the mean difference (pale green bars) in the RSA correlation t-values between pRFs with centres in the upper visual field (UVF) minus lower visual field (LVF). Values were compared to a no-bias assumption (i.e. zero) using two-tailed t-tests. In both hemispheres, RSA correlations were significantly larger for pRFs in the LVF (n = 14). Error bars represent the SEM. Individual participant data points are shown and linked. ***p < 0.001.
