Remotely Controlled Intervention for Developmental Reading and Spelling Disorders Through the Tachidino Platform

Developmental Dyslexia Clinical Trial

Official title:

Remotely Controlled Intervention for Developmental Reading and Spelling Disorders

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT04382482
• Other study ID #: 08/17oss
• Status: Completed
• Start date: January 20, 2018
• Est. completion date: January 30, 2021

Study information

• Verified date: March 2024
• Source: IRCCS Eugenio Medea
• Contact: n/a
• Is FDA regulated: No
• Study type: Observational

Clinical Trial Summary

The study aims to document the effects of the intervention system for specific reading and spelling disorders, currently in use at Scientific Institute (IRCCS) Medea as an innovative intervention model in e-health mode. The model constitutes the application of research data collected in more than fifteen years research on the causes of dyslexia and rehabilitation techniques, combined with the most advanced technologies for remotely-controlled clinical management and therapy monitoring through adaptive, self-updating algorithms.

A single group of about 80 children will be observed and their performance on reading, spelling and metaphonological tests at pre-test, post-test and follow-up (after 6 months) will be recorded in order to assess improvement (and, consequently, treatment effectiveness) and its stability. The improvements obtained in four weeks treatment will subsequently be compared with those obtained with outpatient intervention programmes of the same duration and intensity.

Description:

The system for the improvement of reading and writing skills ("Tachidino" software) is based on two principles of proven effectiveness:

1. The selective stimulation of a cerebral hemisphere and specific reading strategies. Taking up some of the principles already set out in the Balance Model of Dyslexia, the aim is to retrace the different stages of reading acquisition by focusing on those stages and processes which have proved more problematic or less efficiently activated. Such stages may require greater involvement of the right hemisphere, carrying out an accurate visual analysis of the material to be read, or of the left hemisphere, anticipating the words to be read by exploiting linguistic skills (knowledge of words, relationships between meanings, relationships between sounds, grammatical agreement and syntactic rules, etc.);

2. the training of selective visuospatial attention, as well as the perception of rapid movement and the analysis of the visual characteristics of words. A further mechanism involved in the training is the so-called visual crowding, an automatic effect of our perceptual system producing a sort of "blurring" of the visual areas surrounding the object to be analyzed, to make its vision clearer. A malfunction of this mechanism and an insufficient ability to concentrate visual attention in a restricted area of the visual field, or to move it quickly and precisely from one point to another would be among the causes of reading disorders, as suggested by the Magnocellular theory of dyslexia.

Studies carried out by researchers at IRCCS Medea have shown excellent results for the two types of treatment (Hemisphere-specific stimulation according to the Balance Model, and Visual-attentional training with Action Video- Games or Wii games, but above all they showed how these effects are strongly enhanced by the association in a single intervention.

Clinical and assessment procedures

In the Tachidino program, the child (sitting in fron of the computer screen) is required to recognize the target candy (a spiral candy) among various candies (distractors) and press the space bar at the exact moment the target candy is crossing a circle target (fixation point). The word to be decoded/encoded is presented, visually or auditory, only if the child clicks at the right moment, thus ensuring that fixation was in correspondence with the fixation point in the center of the visual field. If the bar is pressed in the target timeframe and in correspondence of the target candy, the word to be decoded/encoded is immediately presented and the child is asked to either write the word on the keyboard or re-order a sequence containing all the correct graphemes in random order.

All visual stimuli are presented at tachistoscopic speed to a visual hemifield in order to stimulate the contralateral hemisphere to a greater degree, or they may also be flashed in the center of the computer screen, involving both hemispheres simultaneously.

The visual hemisphere-specific stimulation is based on a revisit of Bakker's 'Balance model'. Each child was classified as a P-, L-, or M-type dyslexic reader based on the persistent over-reliance on specific reading strategies as shown by reading and spelling errors, and on reading speed.

As per current clinical practice, intervention in "e-health" mode is divided into one or more rehabilitation modules through the use of the Tachidino platform, with systematic monitoring and motivational reinforcement by professionals with experience in e-health approaches. In order to be included in the training, the child must have already obtained a diagnosis of dyslexia, according to the current diagnostic standards.

The structure of the intervention modules, as currently implemented, is as follows:

• 1 initial meeting to get to know the child, pre-test assessment - reading and writing tests of words, non-words and sentences, metaphonological tests (phonemic elision and synthesis) and text reading tests (reading accuracy and speed) in order to define dyslexia subtypes; intervention planning - demonstration of Tachidino use and programming of first activities

• telephone support to monitor and motivate correct use of the software, during active intervention

• 1 final assessment meeting (with repetition of the tests used at pre-test and compilation of satisfaction questionnaires).

• 1 follow-up meeting 6 months after discharge with repetition of reading tests (this meeting is relevant in order to assess stabilization of obtained improvements)

Participants' characteristics: Children aged between 7 and 14 years with a diagnosis of Specific Reading Disorder or Specific Spelling Disorder, not treated before.

The improvements obtained in one month treatment will be compared with those obtained with outpatient intervention programmes of the same duration and intensity, combining treatment based on the two component parts: Visual Hemisphere-Specific Stimulation (V-HSS) and Visual-Attentional Training with Action Video Games.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 80
• Est. completion date: January 30, 2021
• Est. primary completion date: December 1, 2020
• Accepts healthy volunteers: No
• Gender: All
• Age group: 7 Years to 16 Years

Eligibility

Inclusion Criteria:

• A formal diagnosis of Developmental Dyslexia, Specific Reading Disorders, Specific Spelling Disorders or Mixed Learning Disorders

• Age between 7 and 16

• Attending at least the third class of primary school

• Monolingual speakers of Italian or bilingual speakers with perfect mastery of the Italian language (equivalent to monolinguals)

• Intelligence Quotient (IQ) >= 80

• At least one z-score below -2 Standard Deviations from age mean in at least one of the following tests: text reading, word reading, nonword reading, word writing to dictation, nonword writing to dictation ("DDE-2" battery, "MT" tests)

• Not having received any specific rehabilitation treatment for dyslexia before

Exclusion Criteria:

• Intellectual disability

• Neurological disorders

• Sensory deficits that are not /cannot be corrected-to-normal by lenses or hearing aids.

Related Conditions & MeSH terms

• Developmental Dyslexia
• Developmental Spelling Disorder
• Dyslexia

Intervention

Device:
• Tachidino
Web-platform delivering remote treatment of reading and spelling disorders through the (visual or auditory) presentation of words and sentences to be either decoded or corrected (reordering wrong letter sequences).

Locations

Country	Name	City	State
Italy	Scientific Institute IRCCS E. Medea	Bosisio Parini	LC

Sponsors (1)

Lead Sponsor	Collaborator
IRCCS Eugenio Medea

Country where clinical trial is conducted

Italy, 

References & Publications (8)

Bakker DJ. Neuropsychological classification and treatment of dyslexia. J Learn Disabil. 1992 Feb;25(2):102-9. doi: 10.1177/002221949202500203. — View Citation

Bakker DJ. Treatment of developmental dyslexia: a review. Pediatr Rehabil. 2006 Jan-Mar;9(1):3-13. doi: 10.1080/13638490500065392. — View Citation

Franceschini S, Gori S, Ruffino M, Viola S, Molteni M, Facoetti A. Action video games make dyslexic children read better. Curr Biol. 2013 Mar 18;23(6):462-6. doi: 10.1016/j.cub.2013.01.044. Epub 2013 Feb 28. — View Citation

Lorusso ML, Borasio F, Misto P, Salandi A, Travellini S, Lotito M, Molteni M. Remote treatment of developmental dyslexia: how ADHD comorbidity, clinical history and treatment repetition may affect its efficacy. Front Public Health. 2024 Jan 10;11:1135465. — View Citation

Lorusso ML, Borasio F, Molteni M. Remote Neuropsychological Intervention for Developmental Dyslexia with the Tachidino Platform: No Reduction in Effectiveness for Older Nor for More Severely Impaired Children. Children (Basel). 2022 Jan 5;9(1):71. doi: 10 — View Citation

Lorusso ML, Borasio F, Molteni M. The challenge of remote treatment in neuropsychological intervention for reading and spelling in dyslexia: A prospective observational cohort study. Dyslexia. 2024 Feb;30(1):e1758. doi: 10.1002/dys.1758. Epub 2024 Jan 15. — View Citation

Lorusso ML, Facoetti A, Bakker DJ. Neuropsychological treatment of dyslexia: does type of treatment matter? J Learn Disabil. 2011 Mar-Apr;44(2):136-49. doi: 10.1177/0022219410391186. — View Citation

Lorusso ML, Facoetti A, Paganoni P, Pezzani M, Molteni M. Effects of visual hemisphere-specific stimulation versus reading-focused training in dyslexic children. Neuropsychol Rehabil. 2006 Apr;16(2):194-212. doi: 10.1080/09602010500145620. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	comparison with existing data about inpatient treatment effectiveness	difference in z-scores (reading speed and accuracy measured with "MT tests" and "DDE-2") between changes obtained with Tachidino remotely delivered intervention and inpatient treatment with the same combined components (Visual Hemisphere-Specific Stimulation and Action Video-Games), both conducted over 4 weeks. Data about improvement obtained with inpatient treatment were previously collected at IRCCS E. Medea (ClinicalTrials.gov NCT02791841, published in Frontiers in Psychology, 2020)	4 weeks
Primary	change from pre-test to post-test in reading ability	Difference in treatment-related changes (post-test minus pre-test) observed in reading measures (speed and accuracy in word, nonword and text reading standardized tests: Memory Training (MT) group reading test and "Developmental Dyslexia and Dysgraphia (DDE-2); average of the scores expressed as z-scores with respect to age norms)	4 weeks
Primary	change from pre-test to post-test in spelling ability	Difference in treatment-related changes (post-test minus pre-test) observed in spelling tests (writing to dictation of words, nonwords and sentences) - average of the scores expressed as z-scores with respect to age norms in standardized tests ("DDE-2", "Diagnosis of Dysgraphic Disorders" (DDO-2))	4 weeks
Secondary	change from pre-test to post-test in metaphonological ability	Difference in treatment-related changes (post-test minus pre-test) observed in metaphonological tests (phonemic elision and phoneme blending) - average of the number of errors in the two tests	4 weeks
Secondary	persistence of improvement at follow-up (6 months)	no significant difference between post-test scores and follow-up scores (follow-up 6 months after discharge and in the absence of further intervention) in text, word and nonword reading ("MT" tests, "DDE-2")	7 months (1 month intervention and 6 months follow-up)
Secondary	satisfaction with remote intervention experience	scores expressed by parents and patients at post-test, on a questionnaire concerning satisfaction with the delivery of remote intervention and its effects	4 weeks