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. 2017 May;20(3):588-601.
doi: 10.1017/S1366728915000887. Epub 2016 Jan 20.

Interaction of bilingualism and Attention-Deficit/Hyperactivity Disorder in young adults

Ellen Bialystok  1 , Kornelia Hawrylewicz  1 , Melody Wiseheart  1 , Maggie Toplak  1
Affiliations

Interaction of bilingualism and Attention-Deficit/Hyperactivity Disorder in young adults

Ellen Bialystok et al. Biling (Camb Engl). 2017 May.

Abstract

One hundred and sixty-eight young adult participants were classified as monolingual or bilingual and as having a previously reported clinical diagnosis of ADHD or not to create four groups. All participants completed tests of language proficiency, ADHD ratings, and executive control. Both bilingualism and ADHD are generally associated with poorer vocabulary knowledge, but bilingualism and ADHD are associated with opposite effects on executive control. Consistent with this literature, bilinguals performed more poorly than monolinguals on the vocabulary test but contrary to predictions, the ADHD group performed somewhat better on language ability than the non-ADHD group, attesting to their high functioning status. For the flanker task, both bilinguals and non-ADHD participants showed less cost in performing in the conflict condition than in the baseline condition. For the stop-signal task, ADHD status interfered more with performance by bilinguals than monolinguals, suggesting a greater burden of ADHD on executive function for this group.

Keywords: ADHD; Bilingualism; executive control.

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Figures

Figure 1
Figure 1
(colour online) Depiction of the four conditions in flanker task.
Figure 2
Figure 2
(colour online) Schematic of stop-signal task. For presentation purposes only, red circles indicate present trials and blue circles indicate the subsequent trial. During experimental blocks, these colors are randomly set. Three types of trials occur in the task: No-signal trials have no audio stimulus; Go-signal trials have the audio signal “go”; Stop-signal trials have the audio signal “stop” prompting the participant to refrain from responding to the stimulus presented.
Figure 3
Figure 3
Group means (SEM) for Go-signal SSRT for the Stop-signal task.
See this image and copyright information in PMC

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