Skip to content

Neurobiology of Language Recovery in Aphasia: Natural History and Treatment-Induced Recovery

The Center for the Neurobiology of Language Recovery (CNLR)

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01927302
Enrollment
90
Registered
2013-08-22
Start date
2013-04-01
Completion date
2019-03-27
Last updated
2026-07-01

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

Conditions

Agrammatism, Anomia, Aphasia, Dysgraphia, Stroke

Keywords

Aphasia, Dysgraphia, Anomia, Agrammatism, Stroke, Language Recovery, Treatment, Biomarkers of Recovery

Brief summary

The purpose of this study is to investigate the effects of treatment for specific language deficits in people with aphasia. In addition to language and cognitive measures, changes in brain function will also be gathered before and after the treatment is administered in order to track any changes resulting from receiving treatment.

Detailed description

Naming Impairments (Anomia): The labs of Dr. Swathi Kiran (Boston University) and Dr. David Caplan (Harvard University, Massachusetts General Hospital) will be studying language recovery in adults with anomia (naming impairments) following a stroke. Participants will receive treatment focusing on the semantic features of common objects (e.g., that birds can fly). The study will examine how naming and other language abilities change in response to treatment, as well as how the brain changes, as measured by magnetic resonance imaging (MRI) and other techniques. Spelling/Writing Impairments (Dysgraphia): At Johns Hopkins University, the lab of Dr. Brenda Rapp will investigate the neurobiology of language recovery in individuals with dysgraphia (spelling/writing impairments) resulting from a stroke. In this study, treatment will focus on improving spelling ability. The study will examine how spelling and other language abilities change in response to treatment, as well as how the brain changes, as measured by magnetic resonance imaging (MRI) and other techniques. Deficits in Sentence Comprehension & Production: Dr. Cynthia Thompson's lab at Northwestern University will investigate language recovery in individuals with deficits in sentence production and comprehension. Treatment focuses on production and comprehension of complex sentences. At baseline (week 0) and after the treatment period (at week 12), participants take part in language, eye-tracking, and MRI testing, in order to learn how the processing of language, as well as brain function, changes as a result of treatment.

Interventions

BEHAVIORALTreatment Focusing on Naming Objects

Treatment will be administered from week 0 until week 12.

BEHAVIORALTreatment Focusing on Improving Spelling Abilities

Treatment will be administered from week 0 until week 12.

BEHAVIORALTreatment Focusing on Improving Sentence Processing

Treatment will be administered from week 0 until week 12.

BEHAVIORALNo Treatment

No treatment will be administered.

Sponsors

Northwestern University
Lead SponsorOTHER
National Institute on Deafness and Other Communication Disorders (NIDCD)
CollaboratorNIH
National Institutes of Health (NIH)
CollaboratorNIH

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
35 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Aphasia following a stroke * Stoke was at least 1 year ago * Medically stable * Right-handed * Normal or 'corrected to normal' vision and hearing * English as primary language * At least a high school education

Exclusion criteria

* History of neurological disease, head trauma, psychiatric disorders, alcoholism, or developmental speech, language, or learning disabilities

Design outcomes

Primary

MeasureTime frameDescription
Change in language and cognitive abilities as a result of treatmentweek 0 to week 12Standard and non-standard measures of language and cognitive abilities will be gathered at baseline (week 0) to see if language deficits improve after treatment is administered (week 12).

Secondary

MeasureTime frameDescription
Composite change in brain function as a result of treatmentweek 0 to week 12Neural correlates of treatment effects will be examined using: * Functional Magnetic Resonance Imaging (fMRI) * Diffusion Tensor Imaging (DTI) * Perfusion Imaging * Functional Connectivity * Rest state Connectivity
Maintenance of language and cognitive abilities as a result of treatmentweek 12 to week 24Standard and non-standard measures of language and cognitive abilities administered at week 12 will be compared to those administered at week 24 to see if improvement in language abilities as a result of treatment is maintained.
Maintenance of composite changes in brain function as a result of treatmentweek 12 to week 24Neural correlates of treatment effects that are maintained for 12 weeks after treatment ends (week 12 to week 24) will be examined using: * Functional Magnetic Resonance Imaging (fMRI) * Diffusion Tensor Imaging (DTI) * Perfusion Imaging * Functional Connectivity * Rest state Connectivity

Countries

United States

Contacts

STUDY_DIRECTORCynthia K Thompson, PhD

Northwestern University

PRINCIPAL_INVESTIGATORDavid Caplan, MDCM, PhD

Harvard University Massachusetts General Hospital

PRINCIPAL_INVESTIGATORBrenda Rapp, PhD

Johns Hopkins University

PRINCIPAL_INVESTIGATORSwathi Kiran, PhD, CCC-SLP

Boston University

PRINCIPAL_INVESTIGATORTodd B Parrish, PhD

Northwestern University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jul 2, 2026