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Can spontaneous movements be modulated by visual and acoustic stimulation in 3-month-old infants?
Jasmin Dibiasi1, Christa Einspieler
1Developmental Physiology and Developmental Neurology Section, Department of Physiology, Karl-Franzens-University of Graz, Harrachgasse 21/5, A-8010, Graz, Austria.
Insights
Fidgety movements (FMs) in 3-month-old infants are a key indicator of neurological development. A red puppet significantly decreased FMs, while other stimuli had no effect, suggesting FMs can be assessed during social interaction.
Area of Science:
- Neuroscience
- Developmental Pediatrics
- Infant Motor Development
Background:
- General movements (GMs) quality assessment is vital for early detection of infant brain dysfunction.
- Fidgety movements (FMs), observed in 3- to 5-month-old infants, are crucial for predicting cerebral palsy.
- FMs are an endogenous part of an infant's spontaneous motor repertoire.
Purpose of the Study:
- To investigate the extent to which visual and acoustic stimulation can modulate the temporal organization of fidgety movements (FMs) in infants.
- To explore the impact of social interaction on FMs.
Main Methods:
- Video recording and semiquantitative analysis of spontaneous motility in 29 healthy 12-week-old infants.
- Assessment of FMs under conditions of no stimulation, visual stimulation (red ring, red puppet), acoustic stimulation (68-88 dB), and maternal interaction.
- Infants were healthy and exhibited normal FMs at 12 weeks of age.
Main Results:
- Only the presentation of a red puppet significantly increased focused attention and decreased the occurrence of FMs.
- A red ring and non-animated acoustic stimulation did not influence the temporal organization of FMs.
- Maternal interaction, after a 15-minute absence, also showed no significant effect on FMs.
Conclusions:
- Fidgety movements (FMs) are a predominant motor pattern in 3-month-old infants.
- FMs can be reliably assessed during playful social interactions.
- Specific visual stimuli, like a red puppet, can modulate FMs, indicating potential for targeted developmental assessments.
Background:
The assessment of the quality of general movements (GMs) in infants proves to be a reliable and valid diagnostic tool for detecting brain dysfunction early in life. Of special interest, particularly for the prediction of cerebral palsy, is the fidgety kind of GMs, the so-called fidgety movements (FMs) observable in 3- to 5-month-old infants. GMs are part of an infant's spontaneous motor repertoire and as such endogenously generated by the nervous system itself.
Aim:
The question was raised as to what extent the temporal organisation of FMs can be modulated by visual and acoustic stimulation.
Study Design:
Spontaneous motility in supine position with and without stimulation was recorded on video and the data were semiquantitatively analysed. We studied the effect of visual stimulation (red ring, red puppet), unanimated acoustic stimulation (68, 77, 88 dB) and of the mother, approaching her infant in a talkative manner after an absence of a quarter of an hour.
Subjects:
Twenty-nine healthy infants at the age of 12 weeks who all showed normal FMs.
Results:
Visual stimulation demonstrated that only the presentation of a red puppet elicited a significant level of focussed attention and led to a decrease of FMs. A red ring, unanimated acoustic stimulation as well as the interaction with the mother had no influence on the temporal organisation of FMs.
Conclusion:
This study demonstrated that in 3-month-old infants, FMs is a predominant motor pattern and that it is possible to assess FMs during (playful) social interaction.