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https://hdl.handle.net/10316/114635
Title: | Loss of action-related function and connectivity in the blind extrastriate body area | Authors: | Yizhar, Or Tal, Zohar Amedi, Amir |
Keywords: | congenital blindness; neuroimaging; body representation; resting-state fMRI; visuomotor interactions; extrastriate body area; plasticity | Issue Date: | 2023 | Publisher: | Frontiers Media S.A. | Project: | European Research Council (ERC) under the EU Horizon 2020 Research and Innovation Programme (grant no. 773121) EU Horizon 2020 FET Proactive (GuestXR, grant no. 101017884) Joy Ventures “Sphere-sound-body” grant |
Serial title, monograph or event: | Frontiers in Neuroscience | Volume: | 17 | Abstract: | The Extrastriate Body Area (EBA) participates in the visual perception and motor actions of body parts. We recently showed that EBA's perceptual function develops independently of visual experience, responding to stimuli with body-part information in a supramodal fashion. However, it is still unclear if the EBA similarly maintains its action-related function. Here, we used fMRI to study motor-evoked responses and connectivity patterns in the congenitally blind brain. We found that, unlike the case of perception, EBA does not develop an action-related response without visual experience. In addition, we show that congenital blindness alters EBA's connectivity profile in a counterintuitive way-functional connectivity with sensorimotor cortices dramatically decreases, whereas connectivity with perception-related visual occipital cortices remains high. To the best of our knowledge, we show for the first time that action-related functions and connectivity in the visual cortex could be contingent on visuomotor experience. We further discuss the role of the EBA within the context of visuomotor control and predictive coding theory. | URI: | https://hdl.handle.net/10316/114635 | ISSN: | 1662-4548 | DOI: | 10.3389/fnins.2023.973525 | Rights: | openAccess |
Appears in Collections: | FPCEUC - Artigos em Revistas Internacionais |
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