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Electrophysiological cross-language neighborhood density effects in late and early english-welsh bilinguals.

Grossi G, Savill N, Thomas E, Thierry G - Front Psychol (2012)

Bottom Line: This effect interacted with language in the 300-500 ms time window.A more complex pattern of early effects was revealed in early bilinguals and there were no effects in the N400 window.These results suggest that CL activation of orthographic neighbors is highly sensitive to the bilinguals' learning experience of the two languages.

View Article: PubMed Central - PubMed

Affiliation: State University of New York at New Paltz New Paltz, NY, USA.

ABSTRACT
Behavioral studies with proficient late bilinguals have revealed the existence of orthographic neighborhood density (ND) effects across languages when participants read either in their first (L1) or second (L2) language. Words with many cross-language (CL) neighbors have been found to elicit more negative event-related potentials (ERPs) than words with few CL neighbors (Midgley et al., 2008); the effect started earlier, and was larger, for L2 words. Here, 14 late and 14 early English-Welsh bilinguals performed a semantic categorization task on English and Welsh words presented in separate blocks. The pattern of CL activation was different for the two groups of bilinguals. In late bilinguals, words with high CLND elicited more negative ERP amplitudes than words with low CLND starting around 175 ms after word onset and lasting until 500 ms. This effect interacted with language in the 300-500 ms time window. A more complex pattern of early effects was revealed in early bilinguals and there were no effects in the N400 window. These results suggest that CL activation of orthographic neighbors is highly sensitive to the bilinguals' learning experience of the two languages.

No MeSH data available.


Related in: MedlinePlus

Difference voltage maps representing the cross-language ND effect (high ND – low ND) in early bilinguals and mean grand-averages ERPs at the site where the effect was largest (only for the 175–300 ms time window, as no significant cross-language ND effects were observed during the 300–500 ms time window; negative is plotted up).
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Figure 5: Difference voltage maps representing the cross-language ND effect (high ND – low ND) in early bilinguals and mean grand-averages ERPs at the site where the effect was largest (only for the 175–300 ms time window, as no significant cross-language ND effects were observed during the 300–500 ms time window; negative is plotted up).

Mentions: Hemisphere analyses over frontal and frontocentral sites revealed a trend for the interaction between Language and CLND [F(1,13) = 3.8, p = 0.07]. The ND effect tended to be significant for English targets [F(1,13) = 4.1, p = 0.06]. For Welsh targets, ND interacted with Hemisphere [F(1,13) = 4.68, p = 0.05]. Over the left hemisphere, the ND effect was reversed, in that Welsh words with high CLND tended to elicit more positive ERP amplitudes than Welsh words with low CLND [F(1,13) = 4.25, p = 0.06]. No ND effects were observed over the right hemisphere sites (all p’s > 0.29). The distribution of the effects is shown in Figure 5.


Electrophysiological cross-language neighborhood density effects in late and early english-welsh bilinguals.

Grossi G, Savill N, Thomas E, Thierry G - Front Psychol (2012)

Difference voltage maps representing the cross-language ND effect (high ND – low ND) in early bilinguals and mean grand-averages ERPs at the site where the effect was largest (only for the 175–300 ms time window, as no significant cross-language ND effects were observed during the 300–500 ms time window; negative is plotted up).
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3475346&req=5

Figure 5: Difference voltage maps representing the cross-language ND effect (high ND – low ND) in early bilinguals and mean grand-averages ERPs at the site where the effect was largest (only for the 175–300 ms time window, as no significant cross-language ND effects were observed during the 300–500 ms time window; negative is plotted up).
Mentions: Hemisphere analyses over frontal and frontocentral sites revealed a trend for the interaction between Language and CLND [F(1,13) = 3.8, p = 0.07]. The ND effect tended to be significant for English targets [F(1,13) = 4.1, p = 0.06]. For Welsh targets, ND interacted with Hemisphere [F(1,13) = 4.68, p = 0.05]. Over the left hemisphere, the ND effect was reversed, in that Welsh words with high CLND tended to elicit more positive ERP amplitudes than Welsh words with low CLND [F(1,13) = 4.25, p = 0.06]. No ND effects were observed over the right hemisphere sites (all p’s > 0.29). The distribution of the effects is shown in Figure 5.

Bottom Line: This effect interacted with language in the 300-500 ms time window.A more complex pattern of early effects was revealed in early bilinguals and there were no effects in the N400 window.These results suggest that CL activation of orthographic neighbors is highly sensitive to the bilinguals' learning experience of the two languages.

View Article: PubMed Central - PubMed

Affiliation: State University of New York at New Paltz New Paltz, NY, USA.

ABSTRACT
Behavioral studies with proficient late bilinguals have revealed the existence of orthographic neighborhood density (ND) effects across languages when participants read either in their first (L1) or second (L2) language. Words with many cross-language (CL) neighbors have been found to elicit more negative event-related potentials (ERPs) than words with few CL neighbors (Midgley et al., 2008); the effect started earlier, and was larger, for L2 words. Here, 14 late and 14 early English-Welsh bilinguals performed a semantic categorization task on English and Welsh words presented in separate blocks. The pattern of CL activation was different for the two groups of bilinguals. In late bilinguals, words with high CLND elicited more negative ERP amplitudes than words with low CLND starting around 175 ms after word onset and lasting until 500 ms. This effect interacted with language in the 300-500 ms time window. A more complex pattern of early effects was revealed in early bilinguals and there were no effects in the N400 window. These results suggest that CL activation of orthographic neighbors is highly sensitive to the bilinguals' learning experience of the two languages.

No MeSH data available.


Related in: MedlinePlus