Multimodal Treatment of Phonological Alexia: Behavioral & fMRI Outcomes

Study Overview
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Brief Summary
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This study offers 90-120 hours of 1:1 training to improve reading skills in adults who have poor reading skills following a stroke. Specifically, this study is designed to improve skill in sounding out words for reading and spelling. The overall time commitment for participation in this study is approximately 11-30 weeks.

Detailed Description
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The proposed study is a mixed-effects (single-subject ABA repeated-probe and small group elements) design with 90-120 hours of a modified multi-modal treatment of alexia replicated across up to 18 adults with post-stroke phonological alexia. The short-term goals of this research proposal includes the following: 1) determine if a modified multimodal treatment of phonological alexia can improve pseudoword reading skills (providing a basis from which training will also treat real word reading skills), 2) determine if a modified multimodal treatment of phonological alexia can improve real word reading skills, 3) determine how brain lesion extent and location relate to participants' response to treatment, and 4) identify relationships between changes in functional brain activity in specified regions of interest and participants' response to treatment.

Official Title
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Multimodal Treatment of Phonological Alexia: Behavioral & fMRI Outcomes

Conditions
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Aphasia, Stroke, Dyslexia, Acquired

Intervention / Treatment
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* Behavioral: One-on-one treatment of reading difficulties


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Adults with post-stroke reading difficulties (phonological alexia) >3 months post-stroke native English speaker can go in MRI scanner (3 to 6 scans), participate in 90 to 120 free treatment sessions return for 3-month post-treatment follow-up assessment & MRI. Exclusion Criteria: mental illness degenerative disease, visual or auditory acuity impairment drug abuse English is not first language claustrophobia pregnancy

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Interventional Model Description: This is a repeated probe design study.
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Other: Arm 1<br>Repeated probes every 8 hours of treatment (1/week) | Behavioral: One-on-one treatment of reading difficulties<br>* Multimodal behavioral treatment focused on retraining sound to letter associations and skills in sounding out words when reading. Treatment has been pilot-tested in published papers since 1998.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change in Real World Reading Skills | Real World Reading Skills was tested using the Woodcock Reading Mastery Test-Revised | Language testing are conducted two weeks prior to treatment, immediately following end of treatment and 3 months after end of treatment. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Dyslexia, Reading, Aphasia, Stroke