Figure 1—figure supplement 1 and legend text have been reproduced from Figure S1 of Aflalo et al., 2020. The original image and legend text are published under the terms of the Creative Commons Attribution-NonCommercial 4.0 International license (CC BY-NC 4.0) https://creativecommons.org/licenses/by-nc/4.0/. We used fuctional magnetic resonance imaging (fMRI) to identify cortical regions involved in imagined reaching and grasping actions. The participant performed two complementary tasks to ensure activation was robust across paradigms. (a) Event-related task design. Following an intertrial interval, the subject was cued with a specific imagined movement (precision grasp, power grasp, or reach without hand shaping). Following the cue, a cylindrical object was displayed. If the object was intact, the subject imagined performing the cued movement. If the object was broken, the subject withheld movement. (b) Block task design. Eight blocks were presented for 30 s per run. During the first 15 s of each block, common objects were presented every 3 s in varying spatial locations. Before each run, the subject was instructed to either imagine pointing at, imagine reaching and grasping, or look naturally at the object. During the last 15 s of each block, scrambled images were presented and the subject was instructed to guess the identity of the object. (c) Statistical parametric map showing voxels with significant activity for grasping (‘Go’ vs. ‘No-Go’) (p < 0.01, FDR-corrected), based on task (a). Array location and cortical landmarks are depicted in the legend. (d) Statistical parametric map showing voxels with significant activation (p < 0.01, FDR-corrected) for grasping versus looking, based on task (b).
© 2020, Aflalo et al. 2020. Figure S1 of Aflalo et al., 2020. The original image and legend text are published under the terms of the Creative Commons Attribution-NonCommercial 4.0 International license (CC BY-NC 4.0)