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    Action and object processing across three tasks: an fMRI study of picture-naming, word reading and repetition in Italian

    Arévalo, A.L. and Dick, Frederic and Della Rosa, P. and Dronkers, N.F. and Bates, E.A. and Cappa, S.F. and Perani, D. (2011) Action and object processing across three tasks: an fMRI study of picture-naming, word reading and repetition in Italian. Technical Report. University of California, San Diego, California, USA.

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    Numerous studies have investigated the neural processing of actions versus objects. Some have reported distinct areas subserving each item type, while others have found highly overlapping networks. These inconclusive results could be due to the use of different methodologies and tasks, as well as to the different ways these items are defined -- i.e., as semantic concepts (actions vs. objects) or as lexical/grammatical entities (nouns vs. verbs). The aim of this fMRI study was to evaluate whether the semantic processing of actions and objects can be linked to distinct brain regions, and whether different tasks result in different patterns of activation in the same set of participants. Healthy native speakers of Italian saw and heard action and object stimuli presented in three different ways: black and white line drawings (picture-naming), single printed words (reading), and aurally-presented words (repetition). Overall, across two of the three tasks, actions produced more activation than objects in left precentral gyrus, bilateral middle and superior temporal gyrus, right fusiform gyrus, and right cerebellum. At no time did objects result in greater activation than actions. These findings suggest that the brain networks supporting action and object processing overlap. Furthermore, the fact that the type of task can influence the relative degree of action versus object activation differences most likely reflects the effect of presentation modality (i.e., pictures vs. written/spoken words) on the processing of one conceptual category versus the other.


    Item Type: Monograph (Technical Report)
    Keyword(s) / Subject(s): actions, objects, fMRI, Italian, picture-naming, reading, repetition
    School: Birkbeck Faculties and Schools > Faculty of Science > School of Psychological Sciences
    Research Centres and Institutes: Brain and Cognitive Development, Centre for (CBCD)
    Depositing User: Sarah Hall
    Date Deposited: 07 May 2015 10:13
    Last Modified: 02 Aug 2023 17:16


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