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Interval timing in children: effects of auditory and visual pacing stimuli and relationships with reading and
Emma E Birkett1, Joel B Talcott
1Aston Brain Centre, School of Life and Health Sciences, Aston University, Birmingham, United Kingdom.
Insights
Visual pacing impairs motor timing more than auditory pacing in children, affecting skills like reading and attention. This highlights differences in how sensory input impacts temporal processing and diagnosis of neurodevelopmental disorders.
Area of Science:
- Neuroscience
- Developmental Psychology
- Cognitive Science
Background:
- Motor timing tasks are crucial for assessing temporal processing in neurodevelopmental disorders like developmental dyslexia and ADHD.
- Variations in stimulus parameters within these tasks can significantly influence performance and diagnostic outcomes.
Purpose of the Study:
- To investigate the impact of auditory versus visual pacing on synchronized motor timing performance in children.
- To explore the relationship between motor timing performance and cognitive/behavioral predictors relevant to diagnosing developmental disorders.
Main Methods:
- Twenty-one children (mean age 9.6 years) performed a finger tapping task under both auditory and visual pacing conditions.
- Participants also completed psychometric assessments to evaluate cognitive and behavioral skills.
Main Results:
- Synchronized finger tapping was less accurate with visual pacing compared to auditory pacing (ISI 329 ms).
- Analysis revealed distinct processing differences between visual and auditory paced tasks, affecting central timekeeping and peripheral implementation.
- Efficient visual task processing correlated with reading ability and sustained attention.
Conclusions:
- Sensory modality (auditory vs. visual) differentially affects motor timing performance and its relationship with cognitive skills.
- These findings suggest that motor timing tasks are not interchangeable and modality-specific considerations are vital for understanding neurodevelopmental disorders.
Abstract:
Motor timing tasks have been employed in studies of neurodevelopmental disorders such as developmental dyslexia and ADHD, where they provide an index of temporal processing ability. Investigations of these disorders have used different stimulus parameters within the motor timing tasks that are likely to affect performance measures. Here we assessed the effect of auditory and visual pacing stimuli on synchronised motor timing performance and its relationship with cognitive and behavioural predictors that are commonly used in the diagnosis of these highly prevalent developmental disorders. Twenty-one children (mean age 9.6 years) completed a finger tapping task in two stimulus conditions, together with additional psychometric measures. As anticipated, synchronisation to the beat (ISI 329 ms) was less accurate in the visually paced condition. Decomposition of timing variance indicated that this effect resulted from differences in the way that visual and auditory paced tasks are processed by central timekeeping and associated peripheral implementation systems. The ability to utilise an efficient processing strategy on the visual task correlated with both reading and sustained attention skills. Dissociations between these patterns of relationship across task modality suggest that not all timing tasks are equivalent.
