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Not yet recruitingNCT07503106Updated Apr 13, 2026

The Relationship Between Reaction Time and Motor Skills in Children With Pervasive Developmental Disorders

An observational study in Neurodevelopmental Disorders, sponsored by Yeditepe University. Not yet recruiting at 1 site in Turkey (Türkiye). Open to participants aged 3 Years to 6 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-04-13.

Sponsored by Yeditepe University · Observational

From the registry’s dates

  • Primary completion was expected by Jun 2026, 5 months ago, but the record still lists the study as not yet recruiting.
Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
30
Ages
3 Years to 6 Years
Sex
All
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Study summary

This study examines whether the relationship between reaction time and motor skills differs between children aged 3-6 with pervasive developmental disorders and typically developing peers. It aims to determine the direction and strength of this relationship in children with developmental disorders and compare it with that of typically developing children, thereby providing evidence on how cognitive processing speed and motor performance interact in early childhood under developmental disorder conditions.

Read the detailed description

This study is designed as a descriptive and comparative investigation aimed at examining differences in motor skills and reaction times between children aged 3-6 diagnosed with pervasive developmental disorders and their typically developing peers. The sample consists of 15 children with pervasive developmental disorders attending special education and rehabilitation centers and 15 typically developing children from the same age group.

No training or intervention program will be implemented; data will be collected through single-session, one-time assessments. To comprehensively evaluate motor skills, the Peabody Developmental Motor Scales-Second Edition (PDMS-2), widely regarded as a gold standard in child development assessment, will be used. In addition, participants' reaction times will be measured using the reaction test module of the Catch Pad application, a digital tool frequently utilized in scientific research.In this way, performance components including both general motor skills and response speed will be objectively measured, and differences between the two groups will be scientifically identified.

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Conditions studied

  • Neurodevelopmental Disorders

Keywords

  • Reaction time
  • Peabody Developmental Motor Scales
  • Pervasive Developmental Disorders
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In context

Neurodevelopmental Disorders

352 studies on the registry are indexed under Neurodevelopmental Disorders; 141 are open to participants now.

This study's planned enrollment of 30 is below the median of 200 across 133 observational studies indexed under Neurodevelopmental Disorders.

Browse Neurodevelopmental Disorders studies →

Lead sponsor

Yeditepe University is the lead sponsor of 131 studies on the registry; 29 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
3 Years to 6 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

In this study, the sample will be selected using a purposive sampling method from children aged 3-6 years who meet the predefined inclusion and exclusion criteria.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Being between 3 and 6 years of age
  • For typically developing children, having no diagnosis of any neurodevelopmental or orthopedic disorder
  • Having a diagnosis of Pervasive Developmental Disorder made by a child psychiatrist or pediatric neurologist
  • Absence of visual, auditory, or motor impairments that would prevent administration of the Peabody Developmental Motor Scales-2 (PDMS-2) and the Catch Pad reaction test
  • Having sufficient cognitive ability to understand and follow simple instructions during the assessment

Exclusion criteria

Exclusion Criteria:

  • In the typically developing group, having a diagnosis of Attention Deficit -Hyperactivity Disorder (ADHD) or any other neurodevelopmental disorder
  • Presence of additional neurological or orthopedic conditions, apart from Pervasive Developmental Disorder, that would interfere with test administration
  • Visual or hearing impairments severe enough to prevent test administration
  • History of orthopedic trauma or surgery within the last 6 months that could affect motor performance
  • Presence of significant behavioral problems
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Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
30 participants (estimated)
Patient registry
No

Groups and cohorts

  • Pervasive Developmental Disorders Group

    Fifteen children aged between 3 and 6 years who have been diagnosed with pervasive developmental disorders.

    Other: Peabody Developmental Motor Scales

  • Typically Developing Peers Group

    Fifteen children aged between 3 and 6 years who have been typically developing peers

    Other: Peabody Developmental Motor Scales

Interventions

  • OtherPeabody Developmental Motor Scales

    Motor skills will be assessed using the Peabody Developmental Motor Scales-Second Edition (PDMS-2), a standardized and validated tool measuring gross and fine motor performance. Subtests will be administered face-to-face in an age-appropriate manner and scored according to the manual.

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What researchers measure

Primary outcomes

  1. Peabody Developmental Motor Scales

    Reflexes, locomotor skills, object control, grasping, and visual-motor integration will be evaluated by this test

    Time frame: One day

  2. Simple Reaction Time Test

    Reaction time will be evaluated by this test

    Time frame: One day

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Study locations

1 site
  • Özel Altan Akademi Rehabilitasyon Merkezi
    Başakşehir, Istanbul, Turkey (Türkiye)
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References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

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Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Apr 2026; primary completion for Jun 2026, 2 months later.

Of 67 non-industry observational studies under Neurodevelopmental Disorders, half reached primary completion within 59 months of starting (the median), counting those still running; a quarter within 32 and three quarters within 101. This study's planned 2 months is below that.

Counting every sponsor, half of 70 studies reached it within 59 months; a quarter within 32 and three quarters within 101.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 25, 2026
First posted
Mar 31, 2026
StartEst.
Apr 2026
Primary completionEst.
Jun 2026
CompletionEst.
Jun 2026
Last update
Apr 13, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 13, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT07503106
Responsible party
Elif Develi (Physiotherapist, Yeditepe University) — Principal investigator
First posted
Mar 31, 2026
Start date
Apr 2026 (estimated)
Primary completion
Jun 2026 (estimated)
Completion
Jun 2026 (estimated)
Last update
Apr 13, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Apr 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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