Related Experiment Videos
Development of psychomotor tempó (tapping speed and stability) and EEG alpha frequency in 7 to 15-years-old children
Insights
As children age, their brain development influences both electroencephalogram (EEG) alpha frequency and psychomotor tempo (tapping speed). These measures show promise for assessing brain development in children.
Area of Science:
- Neuroscience
- Developmental Psychology
- Biomedical Engineering
Background:
- Psychomotor tempo, or tapping speed, and brainwave activity, specifically alpha frequency, are indicators of neurological function.
- Understanding the developmental trajectory of these measures in children is crucial for assessing cognitive and motor maturation.
Purpose of the Study:
- To investigate the relationship between psychomotor tempo and alpha frequency in children aged 7 to 15.
- To explore how these measures change with age and correlate with brain development.
Main Methods:
- Electroencephalogram (EEG) recordings to measure alpha frequency.
- Tapping tasks to assess psychomotor tempo, including maximum and preferential frequencies, and variability.
- Analysis of age-related changes and correlations between EEG and tapping parameters.
Main Results:
- Alpha frequency and preferential tapping frequency increased with age.
- Preferential tapping frequency showed a significant correlation with age-dependent increases in EEG alpha frequency.
- Tapping frequency variability decreased with age, and age-dependent fluctuations in tapping performance emerged.
Conclusions:
- The maturation of the developing brain underlies the observed age-related changes in EEG alpha frequency and psychomotor tempo.
- These psychomotor and EEG indices may serve as valuable tools for evaluating normal and disturbed brain development in children.
Abstract:
The psychomotor tempo (tapping) and its relation to alpha frequency was investigated in 100 7- to 15-year-old children. The frequency of alpha rhythm increased in proportion to age, and the maximum and preferential tapping frequencies revealed an increasing tendency, too. Mainly the preferential tapping frequency correlated with the age-dependent increment of EEG alpha frequency. Simultaneously, the variability of the tapping frequency decreased. During a phase of relatively stable tapping performance regular fluctuations in the tapping frequency occurred with a period duration between 0.67 and 13.3 s. These oscillations of the motor activity developed during ontogenesis: The slow fluctuations were found in all groups, whereas those with shorter periods were best pronounced in the older children. The development of EEG and psychomotor indices are assumed to be based on the morphological and functional maturation of the developing brain. Therefore, they may be used as a tool to assess the normal and disturbed brain development.