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The neural substrates of abstract/concrete word processing

The neural substrates of abstract/concrete word processing. Gabriella Vigliocco, UCL Stavroula-Thaleia Kousta, UCL Joseph T. Devlin, UCL Stefano Cappa, Universit à Vita-Salute San Raffaele. Background. Concrete > Abstract (Bleasdale, 1987; Paivio, 1986; Schwanenflugel et al., 1989)

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The neural substrates of abstract/concrete word processing

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  1. The neural substrates of abstract/concrete word processing Gabriella Vigliocco, UCL Stavroula-Thaleia Kousta, UCL Joseph T. Devlin, UCL Stefano Cappa, Università Vita-Salute San Raffaele

  2. Background • Concrete > Abstract(Bleasdale, 1987; Paivio, 1986; Schwanenflugel et al., 1989) • Concrete = Imageable Abstract = Non-imageable • Partially distinct brain systems underlie the processing of concrete and abstract concepts (Binder et al., 2005; Sabsevitz et al., 2005; but see Grossman et al., 2002; Kiehl et al., 1999; Noppeney & Price, 2004) • Abstract > Concrete(Kousta et al., in prep.) Question: What are the neural correlates of abstract/concrete word processing when confounding variables have been controlled?

  3. + + sum edy ? ? *** *** + + qlv rod ~60s 15s ~60s 15s t Lexical Decision Mixed (block and event-related design): … 4 Conditions (Abstract, Concrete, Pseudowords, Letter Strings; 240 trials/60 per condition) + Baseline

  4. Study Details Participants: 24 adult right-handed native English speakers Scanning Details: —whole brain fMRI (3x3x3mm voxel; TE = 50ms; TR = 3s) — jittered ITI (2-6s) Test Session: ~28min (2/3 EPI runs) Analysis: GLM in FSL

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