Social Smiling and Laughter Are Linked to Enhanced Functional Brain Connectivity in Young Infants’ Default Mode Network
Datos Bibliográficos
| ID | 9685976 |
|---|---|
| Autores | Olivia Allison (0009-0000-1611-2873, Department of Psychology University of Virginia Charlottesville Virginia USA, autor de correspondencia), Caroline Kelsey (0000-0001-8384-023X, Department of Pediatrics, Division of Developmental Medicine Boston Children's Hospital Boston Massachusetts USA), Tobias Grossmann (0000-0002-1116-6423, Department of Psychology University of Virginia Charlottesville Virginia USA) |
| Año | 2025 |
| Volumen | 67 |
| Número | 5 |
| Páginas | e70088-e70088 |
| Fecha de publicación | 2025-09-01 |
| Peer Reviewed | Sí |
| Open Access | Sí |
| Tipo | ARTICLE |
| Revista | Developmental Psychobiology (JOURNAL) |
| Identificadores de la revista | ISSN: 0012-1630 • E-ISSN: 1098-2302 |
| Editorial | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/dev.70088 |
| PMID | 40999716 |
| OpenAlex | W4414549596 |
| Idioma | EN |
| Referencias citadas | 73 |
The current study used functional near‐infrared spectroscopy (fNIRS) to investigate whether and how individual differences in positive social engagement among 5‐month‐old ( N = 109; N = 35 final sample) infants relate to variability in functional connectivity in the human brain's Default‐Mode Network (DMN). Neuroimaging results showed that on average infants displayed greater functional connectivity in the right than in the left hemisphere of the DMN, adding to prior work indicating faster connectivity development in the right hemisphere. Results did not show any positive associations between our preregistered measures of positive social engagement and functional connectivity in the DMN. However, an additional analysis revealed that higher levels of infants’ smiling and laughter during daily social interactions with their caregivers positively predicted DMN functional connectivity in the left hemisphere. This suggests that individual differences in connectivity in a long‐range brain network implicated in a host of social and cognitive functions are associated with some aspects of infants’ positive social‐interactive behaviors
Cognition · Default mode network · Functional connectivity · Functional neuroimaging · Lateralization of brain function · Laughter · Neuroimaging · Social cognition · Social relationship · Child and Animal Learning Development · Functional Brain Connectivity Studies · Neuroendocrine regulation and behavior
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| Velocidad de citación | historical |
|---|---|
| Altamente citado | No |