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The purpose of the study is to evaluate the effectiveness of the combination of Rhythmic Reading Training (RRT), a computer-assisted intervention method that combines sublexical reading exercises with rhythm processing, and transcranial direct current stimulation (tDCS) on reading abilities of a group of Italian undergraduate students with dyslexia. Two experimental conditions (active vs. sham) will be compared. Finally, the effects of the intervention on other cognitive functions involved in the process of reading (i.e., rapid automatized naming, verbal working memory, rhythm perception abilities) will be measured.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| RRT + active tDCS | Experimental | Rhythmic Reading Training, administered for 5 hours over 10 days consecutive (30-minute training sessions per day) + simultaneous 20 minutes of active tDCS (1.5 mA, 5x5cm anodal electrode on left parieto-temporal regions and 5x5cm cathodal electrode on right parieto-temporal regions). |
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| RRT + sham tDCS | Sham Comparator | Rhythmic Reading Training, administered for 5 hours over 10 days consecutive (30-minute training sessions per day) + simultaneous 20 minutes of sham tDCS (with the same active tDCS setup, current applied for 30 seconds, |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Rhythmic Reading Training | Behavioral | RRT is a computerized reading training program designed for Italian students with dyslexia. The main feature of this intervention is the integration of a traditional remediation approach (sublexical treatment) with rhythm processing. Therefore, all reading exercises are characterized by a rhythmic accompaniment with gradually increasing speed. |
| Measure | Description | Time Frame |
|---|---|---|
| Text reading speed expressed in syllables per seconds | The ability to read aloud a text was assessed using the Italian standardized test 'Prova di velocità di lettura di brani' (Zoccolotti, Fondazione S. Lucia), which provides speed and accuracy scores in reading aloud age-normed texts. | 2 weeks |
| Text reading accuracy expressed in number of errors | The ability to read aloud a text was assessed using the Italian standardized test 'Prova di velocità di lettura di brani' (Zoccolotti, Fondazione S. Lucia), which provides speed and accuracy scores in reading aloud age-normed texts. | 2 weeks |
| Word reading speed expressed in syllables per seconds | The ability to read aloud lists of words was assessed using the following Italian standardized tests: 'Assessment battery for Developmental Dyslexia and Dysorthography-2' (Batteria per la valutazione della dislessia e disortografia evolutiva - DDE-2), in which speed and accuracy scores were computed for word reading (4 lists of 28 words each with different lengths and frequency of use); 'Word and pseudo-word reading test' (WPRT, Prova di lettura di parole e non parole), in which speed and accuracy scores were computed for word reading (4 lists of 30 words varying according to length: short vs. long and frequency of use: low vs. high frequency). | 2 weeks |
| Word reading accuracy expressed in number of errors | The ability to read aloud lists of words was assessed using the following Italian standardized tests: 'Assessment battery for Developmental Dyslexia and Dysorthography-2' (Batteria per la valutazione della dislessia e disortografia evolutiva - DDE-2), in which speed and accuracy scores were computed for word reading (4 lists of 28 words each with different lengths and frequency of use); 'Word and pseudo-word reading test' (WPRT, Prova di lettura di parole e non parole), in which speed and accuracy scores were computed for word reading (4 lists of 30 words varying according to length: short vs. long and frequency of use: low vs. high frequency). |
| Measure | Description | Time Frame |
|---|---|---|
| Rapid Automatized Naming | Rapid Automatized Naming of colours and figures | 2 weeks |
| Verbal Working Memory | Onwards and backwards digit span |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Alice Cancer, MD | Contact | 00390272342284 | alice.cancer@unicatt.it | |
| Alessandro Antonietti, PhD | Contact | alessandro.antoniett@unicatt.it |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Catholic University of the Sacred Heart | Recruiting | Milan | 20123 | Italy |
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| ID | Term |
|---|---|
| D004410 | Dyslexia |
| ID | Term |
|---|---|
| D007806 | Language Disorders |
| D003147 | Communication Disorders |
| D019954 | Neurobehavioral Manifestations |
| D009461 | Neurologic Manifestations |
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| ID | Term |
|---|---|
| D065908 | Transcranial Direct Current Stimulation |
| ID | Term |
|---|---|
| D004599 | Electric Stimulation Therapy |
| D013812 | Therapeutics |
| D003295 | Convulsive Therapy |
| D013000 | Psychiatric Somatic Therapies |
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Participants are prevented from having knowledge of which experimental condition (active or sham tDCS) they are assigned to.
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| Transcranial direct current stimulation | Device | tDCS (transcranial direct current stimulation) is a noninvasive weak-current brain stimulation technique that can facilitate (anodal electrode) or inhibit (cathodal electrode) cortical activity, thus offering exciting possibilities for the enhancement and treatment of impaired cognitive abilities. |
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| 2 weeks |
| Pseudo-word reading speed expressed in syllables per seconds | The ability to read aloud lists of pseudo-words was assessed using the following Italian standardized tests: 'Assessment battery for Developmental Dyslexia and Dysorthography-2' (Batteria per la valutazione della dislessia e disortografia evolutiva - DDE-2), in which speed and accuracy scores were computed for pseudo-word reading (2 lists of 16 pseudo-words each with different lengths); 'Word and pseudo-word reading test' (WPRT, Prova di lettura di parole e non parole), in which speed and accuracy scores were computed for pseudo-words reading (2 lists of 30 pseudo-words varying for length: short vs. long). | 2 weeks |
| Pseudo-word reading accuracy expressed in number of errors | The ability to read aloud lists of pseudo-words was assessed using the following Italian standardized tests: 'Assessment battery for Developmental Dyslexia and Dysorthography-2' (Batteria per la valutazione della dislessia e disortografia evolutiva - DDE-2), in which speed and accuracy scores were computed for pseudo-word reading (2 lists of 16 pseudo-words each with different lengths); 'Word and pseudo-word reading test' (WPRT, Prova di lettura di parole e non parole), in which speed and accuracy scores were computed for pseudo-words reading (2 lists of 30 pseudo-words varying for length: short vs. long). | 2 weeks |
| 2 weeks |
| Rhythm Discrimination | Rhythm discrimination task | 2 weeks |
| D009422 | Nervous System Diseases |
| D000067559 | Specific Learning Disorder |
| D007859 | Learning Disabilities |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D065886 | Neurodevelopmental Disorders |
| D001523 | Mental Disorders |
| D004191 | Behavioral Disciplines and Activities |
| D004597 | Electroshock |
| D011580 | Psychological Techniques |