Longitudinal associations between the infant gut microbiome and negative affect in toddlerhood / Sarah C. VOGEL in Development and Psychopathology, 38-1 (February 2026)  

Public ISBD [article]  inDevelopment and Psychopathology > 38-1 (February 2026) . - p.301-313 Titre : Longitudinal associations between the infant gut microbiome and negative affect in toddlerhood Type de document : texte imprimé Auteurs : Sarah C. VOGEL, Auteur ; Nicolas MURGUEITIO, Auteur ; Nicole HUTH, Auteur ; Kathy SEM, Auteur ; Rebecca C. KNICKMEYER, Auteur ; Sarah J. SHORT, Auteur ; Roger MILLS-KOONCE, Auteur ; Cathi PROPPER, Auteur ; Nicholas J. WAGNER, Auteur Article en page(s) : p.301-313 Langues : Anglais (eng) Mots-clés : Gut microbiome infancy microbiome-gut-brain axis negative affect sensitive periods Index. décimale : PER Périodiques Résumé : The role of the gut microbiome in infant development has gained increasing interest in recent years. Most research on this topic has focused on the first three to four years of life because this is a critical period for developing gut-brain connections. Prior studies have identified associations between the composition and diversity of the gut microbiome in infancy and markers of temperament, including negative affect. However, the specific microbes affected, and the directionality of these associations have differed between studies, likely due to differences in the developmental period of focus and assessment approaches. In the current preregistered study, we examined connections between the gut microbiome, assessed at two time points in infancy (2 weeks and 18 months), and negative affect measured at 30 months of age in a longitudinal study of infants and their caregivers. We found that infants with higher gut microbiome diversity at 2 weeks showed more observed negative affect during a study visit at 30 months. We also found evidence for associations between specific genera of bacteria in infancy and negative affect. These results suggest associations between specific features of the gut microbiome and child behavior may differ based on timing of gut microbiome measurement. En ligne : https://dx.doi.org/10.1017/S0954579425100229 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=579 [article] Longitudinal associations between the infant gut microbiome and negative affect in toddlerhood [texte imprimé] / Sarah C. VOGEL, Auteur ; Nicolas MURGUEITIO, Auteur ; Nicole HUTH, Auteur ; Kathy SEM, Auteur ; Rebecca C. KNICKMEYER, Auteur ; Sarah J. SHORT, Auteur ; Roger MILLS-KOONCE, Auteur ; Cathi PROPPER, Auteur ; Nicholas J. WAGNER, Auteur . - p.301-313. Langues : Anglais (eng) in Development and Psychopathology > 38-1 (February 2026) . - p.301-313 Mots-clés : Gut microbiome infancy microbiome-gut-brain axis negative affect sensitive periods Index. décimale : PER Périodiques Résumé : The role of the gut microbiome in infant development has gained increasing interest in recent years. Most research on this topic has focused on the first three to four years of life because this is a critical period for developing gut-brain connections. Prior studies have identified associations between the composition and diversity of the gut microbiome in infancy and markers of temperament, including negative affect. However, the specific microbes affected, and the directionality of these associations have differed between studies, likely due to differences in the developmental period of focus and assessment approaches. In the current preregistered study, we examined connections between the gut microbiome, assessed at two time points in infancy (2 weeks and 18 months), and negative affect measured at 30 months of age in a longitudinal study of infants and their caregivers. We found that infants with higher gut microbiome diversity at 2 weeks showed more observed negative affect during a study visit at 30 months. We also found evidence for associations between specific genera of bacteria in infancy and negative affect. These results suggest associations between specific features of the gut microbiome and child behavior may differ based on timing of gut microbiome measurement. En ligne : https://dx.doi.org/10.1017/S0954579425100229 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=579

Within-person changes in basal cortisol and caregiving modulate executive attention across infancy / Annie BRANDES-AITKEN in Development and Psychopathology, 34-4 (October 2022)  

Public ISBD [article]  inDevelopment and Psychopathology > 34-4 (October 2022) . - p.1386-1399 Titre : Within-person changes in basal cortisol and caregiving modulate executive attention across infancy Type de document : texte imprimé Auteurs : Annie BRANDES-AITKEN, Auteur ; Stephen H. BRAREN, Auteur ; Sarah C. VOGEL, Auteur ; Rosemarie E. PERRY, Auteur ; Natalie H. BRITO, Auteur ; Clancy BLAIR, Auteur Article en page(s) : p.1386-1399 Langues : Anglais (eng) Mots-clés : Attention  Humans  Hydrocortisone/metabolism  Hypothalamo-Hypophyseal System/metabolism  Infant  Pituitary-Adrenal System/metabolism  Saliva/metabolism  Stress, Psychological/metabolism  caregiving  cortisol Index. décimale : PER Périodiques Résumé : One pathway by which environments of socioeconomic risk are thought to affect cognitive development is through stress physiology. The biological systems underpinning stress and attention undergo a sensitive period of development during infancy. Psychobiological theory emphasizes a dynamic pattern of context-dependent development, however, research has yet to examine how basal cortisol and attention dynamically covary across infancy in ecologically valid contexts. Thus, to address these gaps, we leveraged longitudinal, multilevel analytic methods to disentangle between- from within-person associations of hypothalamic-pituitary-adrenal (HPA) axis activity and executive attention behaviors across infancy. We use data from a large longitudinal sample (N = 1,292) of infants in predominantly low-income, nonurban communities at 7-, 15-, and 24-months of age. Using multilevel models, we investigated longitudinal associations of infant attention and basal cortisol levels and examined caregiving behaviors as moderators of this relationship. Results indicated a negative between- and within-person association between attention and cortisol across infancy and a within-person moderation by caregiver responsiveness. In other words, on the within-person level, higher levels of cortisol were concomitantly associated with lower infant attention across the first 2 years of life. However, variation in the caregiver's level of responsiveness either buffered or sensitized the executive attention system to the negative effects of physiological stress. En ligne : http://dx.doi.org/10.1017/s0954579421000262 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=488 [article] Within-person changes in basal cortisol and caregiving modulate executive attention across infancy [texte imprimé] / Annie BRANDES-AITKEN, Auteur ; Stephen H. BRAREN, Auteur ; Sarah C. VOGEL, Auteur ; Rosemarie E. PERRY, Auteur ; Natalie H. BRITO, Auteur ; Clancy BLAIR, Auteur . - p.1386-1399. Langues : Anglais (eng) in Development and Psychopathology > 34-4 (October 2022) . - p.1386-1399 Mots-clés : Attention  Humans  Hydrocortisone/metabolism  Hypothalamo-Hypophyseal System/metabolism  Infant  Pituitary-Adrenal System/metabolism  Saliva/metabolism  Stress, Psychological/metabolism  caregiving  cortisol Index. décimale : PER Périodiques Résumé : One pathway by which environments of socioeconomic risk are thought to affect cognitive development is through stress physiology. The biological systems underpinning stress and attention undergo a sensitive period of development during infancy. Psychobiological theory emphasizes a dynamic pattern of context-dependent development, however, research has yet to examine how basal cortisol and attention dynamically covary across infancy in ecologically valid contexts. Thus, to address these gaps, we leveraged longitudinal, multilevel analytic methods to disentangle between- from within-person associations of hypothalamic-pituitary-adrenal (HPA) axis activity and executive attention behaviors across infancy. We use data from a large longitudinal sample (N = 1,292) of infants in predominantly low-income, nonurban communities at 7-, 15-, and 24-months of age. Using multilevel models, we investigated longitudinal associations of infant attention and basal cortisol levels and examined caregiving behaviors as moderators of this relationship. Results indicated a negative between- and within-person association between attention and cortisol across infancy and a within-person moderation by caregiver responsiveness. In other words, on the within-person level, higher levels of cortisol were concomitantly associated with lower infant attention across the first 2 years of life. However, variation in the caregiver's level of responsiveness either buffered or sensitized the executive attention system to the negative effects of physiological stress. En ligne : http://dx.doi.org/10.1017/s0954579421000262 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=488

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