Statistical learning of frequent distractor locations in visual search involves regional signal suppression in early visual cortex
Zhang, B., Weidner, R., Allenmark, F., Bertleff, S., Fink, G. R., Shi, Z., & Müller, H. J. (2021). Statistical learning of frequent distractor locations in visual search involves regional signal suppression in early visual cortex. In bioRxiv (p. 2021.04.16.440127). https://doi.org/10.1101/2021.04.16.440127 Abstract Observers can learn the locations where salient distractors appear frequently to reduce potential interference – an effect attributed to better suppression of distractors at frequent locations. But how distractor suppression is implemented in the visual cortex and frontoparietal attention networks remains unclear. We used fMRI and a regional distractor-location learning paradigm (Sauter et al. 2018, 2020) with two types of distractors defined in either the same (orientation) or a different (colour) dimension to the target to investigate this issue. fMRI results showed that BOLD signals in early visual cortex were significantly reduced…