Modulation de la spécialisation hémisphérique du langage par le degré de transparence graphophonémique et le genre des participants

Abstract

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Hemisphere specialisation and inter-hemispheric cooperation during a phonological task: Effect of lexicality as assessed by the divided visual field approach

“…Our result is in line with other behavioural (Banich & Karol, 1992;Chiarello et al, 2004;Cousin, Peyrin, & Baciu, 2006;Perrone et al, 2009;Rayman & Zaidel, 1991;Smolka & Eviatar, 2006;Tremblay et al, 2004Tremblay et al, , 2009Waldie & Mosley, 2000) and neuroimaging (Baciu, Juphard, Cousin, & Bas, 2005;Kareken, Lowe, Chen, Lurito, & Mathews, 2000;Simon, Bernard, Lalonde, & Reba, 2006;Vigneau et al, 2006) studies revealing that rhyme detection depends on the left hemisphere.…”

Functional MRI evidence for modulation of cerebral activity by grapheme-to-phoneme conversion in French, and by the variable of gender

“…The GPC effect has been identified behaviorally (Tremblay et al, 2007;Walter et al, 2001) and at the cerebral level in terms of variation of the degree of hemispheric specialization (Tremblay et al, 2004(Tremblay et al, , 2007. Several behavioral studies that we performed previously by using the divided visual field approach showed GPC effect for visual phoneme detection Cousin et al, 2006;Perrone et al, 2009). Specifically, the items with simple GPC (/o/ corresponds to "o") were processed fast, accurate and recruited hemispheres equally.…”

“…However, this finding remains controversial as some authors did not find such evidence (Frost et al, 1999;Sommer, Aleman, Bouma, & Kahn, 2004; see also Kaiser, Haller, Schmitz, &Nitsch, 2009 andWallentin, 2009, for a review). When gender effect for language is reported, it has been mostly observed for phonological processing (Coltheart, Hull, & Slater, 1975;Coney, 2002;Cousin et al, 2009;Majeres, 1999;Perrone et al, 2009;Pugh et al, 1996;Shaywitz et al, 1995). Their results have shown that females are more efficient to translate speech sound into visual counterparts (Halpern, 2000;Majeres, 1999;McGuinness & Courtney, 1983).…”

“…Additionally, behavioral (Coney, 2002;Cousin et al, 2009;Majeres, 1999;Perrone et al, 2009) and neuroimaging (Kansaku, Yamaura, & Kitazawa, 2000;Puce, Allison, Asgari, Gore, & MCCarthy, 1996;Shaywitz et al, 1995) studies have shown that the gender of participants affects the language organization. However, this finding remains controversial as some authors did not find such evidence (Frost et al, 1999;Sommer, Aleman, Bouma, & Kahn, 2004; see also Kaiser, Haller, Schmitz, &Nitsch, 2009 andWallentin, 2009, for a review).…”

Behavioral evidence for inter-hemispheric cooperation during a lexical decision task: a divided visual field experiment

“…Indeed, DVF studies suggest that (1) LH is predominant for processing language and (2) RH has several language abilities. The degree of hemispheric specialization (LH > RH) varies according to the language task and the psycholinguistic features of the stimuli (Chiarello et al, 2005; Cousin et al, 2006; Perrone et al, 2009). These studies are suggesting a continuum of hemispheres involvement, rather than absolute unilateral hemispheric specialization (Pulvermüller, 1996; Jung-Beeman, 2005).…”