Maternal care affects chicks ’ development differently according to sex in quail
Abstract
Maternal behavior is known to influence the behavioral development of young. Recently, it was demonstrated that maternal behavior also differed according to sex chicks and brood sex composition. So, here, we explored if these factors influenced behavioral development of chicks quail when they were brooded, and what characteristics of chicks and foster females could best explain this development. We studied three sets of chick pairs brooded by foster females: unisex male, unisex female, and mixed broods. We found that both emotivity profile and sociality depended on the sex: females were more reactive and less soci...
Source: Developmental Psychobiology - January 18, 2018 Category: Psychiatry & Psychology Authors: Nad ège Aigueperse, Florent Pittet, Céline Nicolle, Cécilia Houdelier, Sophie Lumineau Tags: RESEARCH ARTICLE Source Type: research
Maternal prenatal stress and infant DNA methylation: A systematic review
Abstract
Maternal prenatal stress has been linked to a variety of infant postnatal outcomes, partially through alterations in fetal HPA axis functioning; yet the underlying pathobiology remains elusive. Current literature posits DNA methylation as a candidate mechanism through which maternal prenatal stress can influence fetal HPA axis functioning. The goal of this systematic review was to summarize the literature examining the associations among maternal prenatal stress, DNA methylation of commonly studied HPA axis candidate genes, and infant HPA axis functioning. Results from the review provided evidence for a link betwe...
Source: Developmental Psychobiology - January 18, 2018 Category: Psychiatry & Psychology Authors: David W. Sosnowski, Carolyn Booth, Timothy P. York, Ananda B. Amstadter, Wendy Kliewer Tags: REVIEW ARTICLE Source Type: research
Cumulative risk exposure moderates the association between parasympathetic reactivity and inhibitory control in preschool ‐age children
We examined whether children's ability to engage the parasympathetic nervous system impacts how risk affects IC. Children ages 3–5 years completed two laboratory measures of IC while respiratory sinus arrhythmia (RSA) was measured, indexing parasympathetic activity. Children with greater risk demonstrated lower IC; risk also moderated associations between RSA reactivity and IC. For children with less risk, greater RSA withdrawal during IC tasks was associated with better IC. In contrast, greater risk was associated with poor IC, regardless of RSA withdrawal. Effects of risk were more pronounced for cumulative than indivi...
Source: Developmental Psychobiology - January 18, 2018 Category: Psychiatry & Psychology Authors: Ryan J. Giuliano, Leslie E. Roos, Jessica D. Farrar, Elizabeth A. Skowron Tags: RESEARCH ARTICLE Source Type: research
Early temperamental fearfulness and the developmental trajectory of error ‐related brain activity
Abstract
The error‐related negativity (ERN) is a negative deflection in the event‐related potential waveform that occurs when an individual makes a mistake, and an increased ERN has been proposed as a biomarker for anxiety. However, previous work suggests that fearful children are characterized by a smaller ERN. We have proposed that this may reflect the changing phenomenology of anxiety across development. In the current study, we investigate this possibility using a longitudinal within‐subject design. In 271 children, we completed observational measures of fear when the children were 3 years old, and then measured ...
Source: Developmental Psychobiology - January 18, 2018 Category: Psychiatry & Psychology Authors: Alexandria Meyer, Greg Hajcak, Dana Torpey ‐Newman, Autumn Kujawa, Thomas M. Olino, Margaret Dyson, Daniel N. Klein Tags: RESEARCH ARTICLE Source Type: research
Responsiveness of rat fetuses to sibling motor activity: Communication in utero?
This study investigated whether motor activity of E20 rat fetuses influenced the behavior of siblings in utero. Three experiments showed that; (a) contiguous siblings expressed a higher frequency of synchronized movement than noncontiguous siblings; (b) fetuses that lay between two siblings immobilized with curare showed less movement relative to fetuses between saline or uninjected controls; and (c) fetuses between two siblings behaviorally activated by the opioid agonist U50,488 also showed less activity and specific behavioral changes compared to controls. Our findings suggest that rat fetuses are directly impacted by s...
Source: Developmental Psychobiology - January 1, 2018 Category: Psychiatry & Psychology Authors: Michele R. Brumley, Riana Hoagland, Melissa Truong, Scott R. Robinson Tags: RESEARCH ARTICLE Source Type: research
End ‐state comfort in two object manipulation tasks: Investigating how the movement context influences planning in children, young adults, and older adults
Abstract
The movement context (pantomime, pantomime with image/object as guide, and actual use) has been shown to influence end‐state comfort—the propensity to prioritize a comfortable final hand position over an initially comfortable one—across the lifespan. The present study aimed to assess how the movement context (pantomime, using a dowel as the tool, and actual use) influences end‐state comfort when acting with objects (glass/hammer) that differ in use‐dependent experience. Children (ages 6–11, n = 70), young adults (n = 21), and older adults (n = 21) picked up an overturned glass to pour water...
Source: Developmental Psychobiology - January 1, 2018 Category: Psychiatry & Psychology Authors: Sara M. Scharoun Benson, Eric A. Roy, Pamela J. Bryden Tags: RESEARCH ARTICLE Source Type: research
Family conflict, chaos, and negative life events predict cortisol activity in low ‐income children
Abstract
Childhood poverty is hypothesized to increase risk for mental and physical health problems at least in part through dysregulation of the hypothalamic‐pituitary‐adrenal axis. However, less is known about the specific psychosocial stressors associated with cortisol reactivity and regulation for children living in poverty. The current study investigates negative life events, household chaos, and family conflict in preschool and middle childhood as potential predictors of cortisol regulation in low‐income 7–10 year olds (N = 242; M age = 7.9 years). Participants were assessed in preschool and participa...
Source: Developmental Psychobiology - January 1, 2018 Category: Psychiatry & Psychology Authors: Jenalee R. Doom, Stephanie H. Cook, Julie Sturza, Niko Kaciroti, Ashley N. Gearhardt, Delia M. Vazquez, Julie C. Lumeng, Alison L. Miller Tags: RESEARCH ARTICLE Source Type: research
Ghosts of mother's past: Previous maternal stress leads to altered maternal behavior following a subsequent pregnancy in rats
Abstract
A rodent model was used to explore whether mothers that experienced a postnatal stressor in the past (i.e., daily separations from her previous litter) exhibited altered maternal behavior during a typical, subsequent rearing experience. Stress‐naïve female rats were bred and then separated from their pups (maternal separation) or remained with their pups (standard‐rearing). After those pups were weaned, mothers were bred again with all pups from the subsequent litter being standard‐reared. In the first week of life, various maternal behaviors directed towards these subsequent offspring were observed, includ...
Source: Developmental Psychobiology - January 1, 2018 Category: Psychiatry & Psychology Authors: Janice M. Kan, Rick Richardson Tags: RESEARCH ARTICLE Source Type: research
An exploratory analysis of the joint contribution of HPA axis activation and motivation to early adolescent depressive symptoms
This study examines the interactive contribution of the hypothalamic‐pituitary‐adrenal (HPA) axis and approach‐avoidance motivation systems to longitudinal changes in depressive symptoms across the adolescent transition. In the summer prior to, or fall of, 4th grade, 132 youth (68 girls; 64 boys; M age = 9.46 years) participated in a social challenge task and reported on their depressive symptoms. In the winter of 6th grade, youth completed a semi‐structured interview of depression and a self‐report measure of approach‐avoidance motivations. Analyses revealed two profiles of risk for adolescent depressive s...
Source: Developmental Psychobiology - January 1, 2018 Category: Psychiatry & Psychology Authors: Karen D. Rudolph, Wendy Troop ‐Gordon, Haina H. Modi, Douglas A. Granger Tags: RESEARCH ARTICLE Source Type: research
Cover, Ed Board and TOC
(Source: Developmental Psychobiology)
Source: Developmental Psychobiology - December 30, 2017 Category: Psychiatry & Psychology Tags: ISSUE INFORMATION Source Type: research
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Developmental Psychobiology,Volume 60, Issue 2, Page 140-149, March 2018. (Source: Developmental Psychobiology)
Source: Developmental Psychobiology - December 4, 2017 Category: Psychiatry & Psychology Source Type: research
Effect of mother's voice on neonatal respiratory activity and EEG delta amplitude
Abstract
While the influence of the mother's voice on neonatal heart‐rate response and its relevant activity on cerebral cortex and the autonomic nervous system (ANS) are well known, few studies have assessed its influence on respiratory activity. We investigated the relationship among the respiration rate, the delta wave amplitudes through electroencephalography, and the basal state of ANS through the respiratory variability index while 22 full‐term neonates hear their mother's voice and an unknown voice. It was found that when respiratory variability was large, a transient (<5 s) change in respiration rates was ...
Source: Developmental Psychobiology - December 1, 2017 Category: Psychiatry & Psychology Authors: Mariko O. Uchida, Takeshi Arimitsu, Kiyomi Yatabe, Kazushige Ikeda, Takao Takahashi, Yasuyo Minagawa Tags: RESEARCH ARTICLE Source Type: research
Respiratory sinus arrhythmia: Modeling longitudinal change from 6 weeks to 2 years of age among low ‐income Mexican Americans
This study characterized resting RSA change from 6 weeks to 2 years of age among 312 low‐income Mexican American infants. RSA was assessed longitudinally at 6, 12, 18, 24, 52, 78, and 104 weeks of age. On average, resting RSA increased as infants aged, and this change accelerated over time. There was significant variance between infants in resting RSA at 6 weeks of age, and in the slope, and acceleration of resting RSA change. Intraclass correlation among infants’ resting RSA measures was minimal, indicating that resting RSA may not be “trait‐like” during infancy. Results characterize early RSA development among ...
Source: Developmental Psychobiology - November 30, 2017 Category: Psychiatry & Psychology Authors: Shannon L. Jewell, Hye Won Suk, Linda J. Luecken Tags: BRIEF REPORT Source Type: research
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Developmental Psychobiology,Volume 60, Issue 2, Page 232-238, March 2018. (Source: Developmental Psychobiology)
Source: Developmental Psychobiology - November 30, 2017 Category: Psychiatry & Psychology Source Type: research
Ankle muscle tenotomy does not alter ankle flexor muscle recruitment bias during locomotor ‐related repetitive limb movement in late‐stage chick embryos
Abstract
In ovo, late‐stage chick embryos repetitively step spontaneously, a locomotor‐related behavior also identified as repetitive limb movement (RLM). During RLMs, there is a flexor bias in recruitment and drive of leg muscle activity. The flexor biased activity occurs as embryos assume an extremely flexed posture in a spatially restrictive environment 2–3 days before hatching. We hypothesized that muscle afferent feedback under normal mechanical constraint is a significant input to the flexor bias observed during RLMs on embryonic day (E) 20. To test this hypothesis, muscle afference was altered either by perfor...
Source: Developmental Psychobiology - November 28, 2017 Category: Psychiatry & Psychology Authors: Soo Yeon Sun, Lucinda L. Baker, Nina S. Bradley Tags: RESEARCH ARTICLE Source Type: research
