Duration of motherhood has incremental effects on mothers' neural processing of infant vocal cues: a neuroimaging study of women

Scientific Reports
Christine E ParsonsMorten L Kringelbach

Abstract

The transition to motherhood, and the resultant experience of caregiving, may change the way women respond to affective, infant signals in their environments. Nonhuman animal studies have robustly demonstrated that mothers process both infant and other salient signals differently from nonmothers. Here, we investigated how women with and without young infants respond to vocalisations from infants and adults (both crying and neutral). We examined mothers with infants ranging in age (1-14 months) to examine the effects of duration of maternal experience. Using functional magnetic resonance imaging, we found that mothers showed greater activity than nonmothers to vocalisations from adults or infants in a range of cortical regions implicated in the processing of affective auditory cues. This main effect of maternal status suggests a general difference in vocalisation processing across infant and adult sounds. We found that a longer duration of motherhood, and therefore more experience with an infant, was associated with greater infant-specific activity in key parental brain regions, including the orbitofrontal cortex and amygdala. We suggest that these incremental differences in neural activity in the maternal brain reflect the buil...Continue Reading

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Citations

Dec 11, 2019·Social Cognitive and Affective Neuroscience·Emilia F CárdenasKathryn L Humphreys
Oct 11, 2019·Royal Society Open Science·Christine E ParsonsKatherine S Young
Jun 28, 2019·Frontiers in Psychology·Daiki HiraokaMichio Nomura
Jul 30, 2020·PloS One·Edwina R OrchardSharna D Jamadar
Jul 17, 2018·Archives of Women's Mental Health·Erika Barba-MüllerElseline Hoekzema
Aug 1, 2018·Cell and Tissue Research·Silvana Valtcheva, Robert C Froemke
Jan 10, 2021·Social Cognitive and Affective Neuroscience·Anne BjertrupKamilla Miskowiak
Feb 3, 2021·Brain Sciences·Magdalena Martínez-GarcíaSusanna Carmona
Mar 10, 2021·Social Neuroscience·Pérez-Hernández MSandoval-Carrillo I K
Apr 20, 2021·Psychological Medicine·Anne J BjertrupKamilla W Miskowiak
Jan 7, 2022·European Journal of Epidemiology·Jurate AleknaviciuteSteven A Kushner

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