Representational content of occipitotemporal and parietal tool areas

Neuropsychologia
Stefania BracciMagdalena Ietswaart

Abstract

It is now established that the perception of tools engages a left-lateralized network of frontoparietal and occipitotemporal cortical regions. Nevertheless, the precise computational role played by these areas is not yet well understood. To address this question, we used functional MRI to investigate the distribution of responses to pictures of tools and hands relative to other object categories in the so-called "tool" areas. Although hands and tools are visually not alike and belong to different object categories, these are both functionally linked when considering the common role of hands and tools in object manipulation. This distinction can provide insight into the differential functional role of areas within the "tool" network. Results demonstrated that images of hands and tools activate a common network of brain areas in the left intraparietal sulcus (IPS), left lateral occipitotemporal cortex (LOTC) and ventral occipitotemporal cortex (VOTC). Importantly, multivoxel pattern analysis revealed that the distribution of hand and tool response patterns in these regions differs. These observations provide support for the idea that the left IPS, left LOTC and VOTC might have distinct computational roles with regard to tool use....Continue Reading

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Citations

Oct 30, 2016·Neuropsychologia·Annalisa TosoniCarlo Sestieri
Apr 28, 2018·Human Brain Mapping·Nina N KleinebergPeter H Weiss
Mar 19, 2019·Journal of Cognitive Neuroscience·Valentina BorghesaniMaria Luisa Gorno-Tempini
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Apr 27, 2021·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Lénia AmaralJorge Almeida
Jul 16, 2021·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·Andrea DressingCornelius Weiller
Jul 12, 2021·Brain Structure & Function·Giulia Malfatti, Luca Turella

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