- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT07326423
Mental Imagery Therapy for Autism (MITA) - an Early Intervention Computerized Language Training Program for Children With Autism (MITA-RCT)
Mental Imagery Therapy for Autism (MITA) - a Randomized Controlled Study of Early Intervention Computerized Brain Training Program for Children With ASD
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Among primates, humans have exceptionally long and widely distributed fronto-temporal and fronto-parietal tracts (such as the arcuate and superior longitudinal fasciculi), yet the maturation of these pathways depends on early experience. During childhood, these tracts are fine-tuned (largely via myelination and synaptogenesis) through engagement in syntactically rich conversations, imaginative pretend play, and narrative storytelling 5-9. Both biological factors-such as genetically shortened sensitive period for pathways development-and social factors-including limited conversational engagement, low syntactic complexity in daily interactions, lack of storytelling, and excessive passive screen time-can substantially reduce the functional development of these connections and profoundly alter a child's developmental trajectory.
Autistic individuals frequently face a compounding disadvantage from both biological and social factors during early development: a potentially abbreviated critical period, combined with reduced spontaneous engagement in reciprocal conversation, joint attention, and pretend play. These factors limit the experiential scaffolding that typically drives the maturation of fronto-parieto-temporal white-matter tracts.
In a subset of autistic adults these tracts remain structurally and functionally underdeveloped. This compromises the executive function of Prefrontal Synthesis (PFS): the deliberate, effortful co-activation and dynamic binding of distributed visuospatial representations in working memory in order to construct an integrated, manipulable "scene" or situation model. When PFS is impaired, individuals struggle to intentionally generate a unified visuospatial scene that simultaneously contains an agent (subject), an action, and a patient (object) in their correct spatial-temporal relations. Because most syntactic constructions (e.g., active vs. passive voice, relative clauses, prepositional phrases) evolved to efficiently encode precisely these visuospatial-relational configurations, PFS deficits can render sentence comprehension fragmentary or reliant on non-syntactic strategies (e.g., rote memorization or simple word-order heuristics). The autism community refers to this phenomenon as the lack of multi-cue responsivity, or stimulus overselectivity, or tunnel vision (since individuals focus on a single word rather than integrating multiple words within a sentence).
In the absence of robust compensatory mechanisms (which some autistic individuals do develop), this core deficit in constructing and manipulating internal situation models contributes to persistent difficulties with complex language comprehension, abstract reasoning, planning, and flexible adaptive behavior-often resulting in lifelong challenges with independent living for those at the more severely affected end of the spectrum.
About 20 years ago, investigators posed a critical question: if many autistic children show limited interest in conversations, imaginative play, and story listening, could structured, non-conversational exercises be developed that nonetheless train the same fronto-parieto-temporal networks underlying syntactic processing and mental scene construction? Moreover, could such brain training be delivered during the peak sensitive period for language and socio-cognitive development (ages 2-4 years)? To address this challenge, Mental Imagery Therapy for Autism (MITA), a tablet-based intervention was built around highly stylized, brightly colored animated characters that are frequently preferred by autistic children. MITA consists of adaptive, game-like exercises designed to systematically train PFS both within and outside the verbal domain.
Verbal exercises begin with basic receptive vocabulary and systematically progress to increasingly complex syntactic and relational structures, including noun-adjective coordination, spatial prepositions, agent-action-patient relations, and recursive embedding 30. For example, a child may be asked to "find the small red ball" or "put the cup behind the table." Vocabulary is deliberately constrained; the goal is not lexical expansion but rather the repeated practice of dynamically binding multiple features and objects into novel configurations using PFS.
Non-verbal exercises provide analogous PFS training through purely visual puzzles that require mental integration of dissociated parts into a unified whole, without any spoken instruction 31. For example, a child can be presented with two separate images of a train and a window pattern, and a choice of complete trains. The task is to find the correct complete train and to place it into the empty square. Difficulty scales by progressively increasing the number of features that must be simultaneously attended to and integrated (up to eight at the highest levels). Prior work has shown that many children who cannot yet follow explicit verbal instructions can nevertheless succeed on visually isomorphic non-verbal versions of the same integrative task 30.
Since its release in 2015, and without paid advertising, MITA has consistently ranked among the top language-therapy applications across major app stores (Apple App Store, Google Play Store, and Amazon App Store), accumulating more than 3 million downloads worldwide and indicating sustained parental interest. The app includes quarterly in-app parent-report assessments, yielding the largest longitudinal naturalistic dataset on the development of autistic children.
An observational analysis of this real-world longitudinal cohort (N = 6,454) found that children who engaged with MITA showed 2.2-fold greater gains on a composite parent-reported PFS outcome measure compared to age-, gender-, and severity-matched controls who did not engage with the app (p < 0.0001) 33.
These promising naturalistic (citizen-science) findings prompted the design and execution of a prospective randomized controlled trial (RCT) to establish causal efficacy under more rigorously controlled conditions. To minimize environmental and therapeutic confounders, a study was designed in which participants could be randomized and matched within the same clinical and educational setting. After contacting more than 300 specialized early-intervention centers across North America, South America, and Europe, only one institution-Somare Therapeutic and Educational Clinic in Foz do Iguaçu, Brazil- had both access to an appropriate pediatric population and the willingness to conduct an independent, investigator-initiated RCT at no cost to the research team. The clinic serves a homogeneous population of preschool-aged children with autism spectrum disorder (ASD) and provided an ideal setting for tight experimental control of concomitant interventions and daily routines.
Preschool children (aged 2-5 years) attending Somare Therapeutic and Educational Clinic with a confirmed diagnosis of ASD will be enrolled in the RCT after informed parental consent. Eligible participants will be pair-matched by age and CARS-2 total score, then randomized 1:1 to either an intervention group that received standard clinic-based early intervention plus daily MITA training for a minimum of 12 months, or active-control group, that received standard clinic-based early intervention plus an equivalent duration of computerized executive-function exercises (non-MITA). Both groups will continue to receive the clinic's usual intensive behavioral and speech-language interventions. An assessor blinded to group assignment will evaluate all participants every six months for 2.5 years using the Childhood Autism Rating Scale (CARS-2) as the outcome measure.
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
Paraná
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Foz do Iguaçu, Paraná, Brazil, 85865-370
- Espacosomare
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- age 2 and 5 years at the time of enrollment
- diagnosis of ASD confirmed by a study investigator who was experienced in ASD diagnosis.
Exclusion Criteria:
- a neurodevelopmental disorder of known etiology (e.g., fragile X syndrome)
- significant sensory or motor impairment,
- major physical problems such as a chronic serious health condition,
- seizures at time of entry. Children who developed seizures during the course of the study were not excluded.
- use of psychoactive medications,
- history of a serious head injury and/or neurologic disease,
- alcohol or drug exposure during the prenatal period,
- CARS-2 total score > 48 (severe ASD).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
|---|---|
|
Experimental: MITA-treatment
The treatment group received PFS-training activities emphasizing mental-juxtaposition-of-objects organized into the gamified application MITA
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The treatment group received Prefrontal Synthesis (PFS)-training activities emphasizing mental-juxtaposition-of-objects organized into the gamified application MITA.
MITA includes both verbal and nonverbal exercises aiming to develop voluntary imagination ability in general and PFS ability in particular.
MITA verbal activities use higher forms of language, such as noun-adjective combinations, spatial prepositions, recursion, and syntax to train PFS: e.g., a child can be instructed to "put the large red dog behind the orange chair" or "identify the wet animal after the lion was showered by the monkey;" or "take animals home following an explanation that the lion lives above the monkey and under the cow".
In every activity a child listens to a short story and then works within immersive interface to generate an answer.
Correct answers are rewarded with pre-recorded encouragement.
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Active Comparator: Control
The active-control group received the same standard clinic-based early intervention but, during the tablet-computer-based therapy unit, used non-MITA applications targeting memory and executive functions (e.g., matching colors and shapes, logical sequences, same/different discrimination, sound discrimination, imitation and musicalization, early literacy and graphomotor skills, animal-sound matching, quantity-number association, comparison, counting, and introductory fractions).
|
The active-control group received the same standard clinic-based early intervention but, during the tablet-computer-based therapy unit, used non-MITA applications targeting memory and executive functions (e.g., matching colors and shapes, logical sequences, same/different discrimination, sound discrimination, imitation and musicalization, early literacy and graphomotor skills, animal-sound matching, quantity-number association, comparison, counting, and introductory fractions).
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Childhood Autism Rating Scale (CARS-2)
Time Frame: the baseline, 6-months, 12-months, 18-months, 24-months, and 30-months
|
The Childhood Autism Rating Scale, Second Edition (CARS-2) is a 15-item behavioral rating scale developed to quantitatively assess the severity of ASD.
CARS-2 works by rating a child's behavior, characteristics, and abilities against the expected developmental growth of a typical child.
Each item is scored from 1 to 4: 1 being normal for a child's age, 2 for mildly abnormal, 3 for moderately abnormal, and 4 as severely abnormal.
CARS-2 score ranges from 15 (no pathology) to 60 (severe ASD) with 30 being the cutoff rate for a diagnosis of mild autism.
Scores 30-37 indicate mild to moderate autism, while scores between 38 and 60 are characterized as severe autism 36.
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the baseline, 6-months, 12-months, 18-months, 24-months, and 30-months
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
|
Mental Synthesis Evaluation Checklist (MSEC)
Time Frame: the baseline, 6-months, 12-months, 18-months, 24-months, and 30-months
|
The parent-reported Mental Synthesis Evaluation Checklist (Prefrontal Synthesis was formerly known as Mental Synthesis) includes syntactic and arithmetic items that gradually increase in complexity, as well as components evaluating drawing skills and pretend play.
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the baseline, 6-months, 12-months, 18-months, 24-months, and 30-months
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Autism Spectrum Disorder
- Neurologic Manifestations
- Nervous System Diseases
- Mental Disorders
- Neurobehavioral Manifestations
- Neurodevelopmental Disorders
- Child Development Disorders, Pervasive
- Pathological Conditions, Signs and Symptoms
- Behavior
- Signs and Symptoms
- Communication
- Autistic Disorder
- Intellectual Disability
- Language
Other Study ID Numbers
- 4924876
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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