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. Author manuscript; available in PMC: 2023 Jul 24.
Published in final edited form as: Nat Hum Behav. 2020 Nov 30;5(3):389–398. doi: 10.1038/s41562-020-00982-w

Figure 3. Spatial mapping of selectivity to hierarchical orthographic stimuli.

Figure 3.

(a) MEMA activation map showing the regions of significant activation to the real word stimuli during passive viewing (100 – 400 ms, 27 patients). This activation map was used as a mask and a normalization factor for the activations of the non-word stimuli (b). Normalized amplitude maps showing regions with preferential activation to words (red) or non-words (blue). (c) Electrode selectivity profiles grouped in 20 mm intervals along the y (antero-posterior) axis in Talairach space from all word responsive electrodes (207 electrodes, 20 patients). Horizontal dashed lines represent word response. Individual data points are overlaid. (d) Contrasts of the lettered non-words against words for electrodes within mid-fusiform cortex (e; 39 electrodes, 13 patients), showing latency differences for when each non-word category is distinguished from words. Coloured bars under the plots represent regions of significant difference from words (one-tailed Wilcoxon signed rank, q<0.01). (f) Spatial map of the initial timing of significant word selectivity (207 electrodes, 20 patients). Electrodes that did not reach significance shown in black.