Fronto-parietal Organization for Response Times in Inhibition of Return: The FORTIOR model

Abstract : Inhibition of Return (IOR) refers to a slowing of response times (RTs) for visual stimuli repeated at the same spatial location, as compared to stimuli occurring at novel locations. The functional mechanisms and the neural bases of this phenomenon remain debated. Here we present FORTIOR, a model of the cortical control of visual IOR in the human brain. The model is based on known facts about the anatomical and functional organization of fronto-parietal attention networks, and accounts for a broad range of behavioral findings in healthy participants and brain-damaged patients. FORTIOR does that by combining four principles of asymmetry: FORTIOR accounts for spatial asymmetries in the occurrence of IOR after brain damage and after non-invasive transcranial magnetic stimulation on parietal and frontal regions. It also provides a framework to understand dissociations between manual and saccadic IOR, and makes testable predictions for future experiments to assess its validity.
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Cortex, Elsevier, In press, 〈10.1016/j.cortex.2017.11.005〉
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Tal Malkinson, Paolo Bartolomeo. Fronto-parietal Organization for Response Times in Inhibition of Return: The FORTIOR model. Cortex, Elsevier, In press, 〈10.1016/j.cortex.2017.11.005〉. 〈hal-01651780〉

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