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Controlling your languages after acquired neurological damage

The mediating role of executive control in recovering from bilingual aphasia

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON29056
Enrollment
40
Registered
2020-02-19
Start date
2019-09-01
Completion date
Unknown
Last updated
2024-02-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Aphasia

Interventions

None listed

Sponsors

Centre for Language Studies (CLS), Radboud University, Nijmegen (The Netherlands)
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: (1) Age at time of inclusion between 18-75 years old (2) Unilateral left hemispheric stroke >6 months prior to inclusion (3) Objectified language impairment as a result of the neurological damage (based on clinician's assessment, earlier standardized tests, and/or Token Test score <32) (4) Native speaker of Dutch (5) Ability to understand information about participation, willingness to give consent

Exclusion criteria

Exclusion criteria: (1) Pre-existent neurological, psychiatric, or language problems (other than stroke) (2) Severe vision or hearing problems that cannot be corrected or controlled for (3) Severe impairment in comprehending spoken language (unable to understand instructions or provide consent). Operationalized through score on (1) the Dutch Comprehensive Aphasia Test (CAT-NL; Visch-Brink, Vandenborre, De Smet & Marien, 2014) OR (2) the Dutch version of the Aachen Aphasia Test (AAT; Graetz, De Bleser, & Willmes, 1992). a) CAT-NL: Subtest 9 [Comprehension of spoken sentences]: a score of 18 (out of 32) or below c) AAT: Subtest TB 1&2 [Comprehension of spoken language]: a score of 33 (out of 60) or below

Design outcomes

Primary

MeasureTime frame
(1) The differences in accuracy (in number or percentage correct) and reaction time (in milliseconds) measures on: a) Picture-naming test b) Picture-word interference test c) Language- and task switching tests d) Flanker test for inhibitory control (2) Effectiveness and efficiency of functional communication measured with the ANELT (Blomert, Koster & Kean, 1995)

Secondary

MeasureTime frame
(1) Token Test (36-item version, De Renzi & Fraglioni, 1978) as a measure of overall severity of aphasia in each language

Contacts

Public ContactSaskia Mooijman

Radboud University

s.mooijman@let.ru.nl0622141229

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)