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Developmental Psychobiology

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https://www.readbyqxmd.com/read/28631821/a-new-approach-to-measuring-patience-in-preschoolers
#1
Gladys Barragan-Jason, Cristina M Atance
Patience in children has usually been studied using delay of gratification paradigms. However, another important aspect of patience that has not been well documented is the ability to adjust one's behavior while waiting without an explicit reward as a motivator (e.g., sitting in the doctor's waiting room). To examine this aspect of patience, video-recordings of sixty-one 3- and 4-year olds waiting for two separate 3-min periods were examined and coded for children's spontaneous behaviors. We found that 4-year olds displayed more patient (i...
June 20, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28608542/hpa-axis-linkage-in-parent-child-dyads-effects-of-parent-sex-autism-spectrum-diagnosis-and-dyadic-relationship-behavior
#2
Darby E Saxbe, Ofer Golan, Sharon Ostfeld-Etzion, Yael Hirschler-Guttenberg, Orna Zagoory-Sharon, Ruth Feldman
Families of preschoolers participated in two dyadic home visits, once with mother (56 dyads) and once with father (59 dyads). Each member of the dyad provided three cortisol samples and participated in several interaction tasks that were behaviorally coded. Approximately half of the children had been diagnosed with autism spectrum disorders (ASD), whereas half were typically developing (TD). In a multilevel model, father's cortisol level at each timepoint predicted child cortisol. Father-child linkage was stronger in dyads that showed less reciprocity, in which fathers showed less sensitivity, and in which children showed less self-regulation and more withdrawal...
June 13, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28608521/cultural-entrainment-of-motor-skill-development-learning-to-write-hiragana-in-japanese-primary-school
#3
Tetsushi Nonaka
The aim of the present study was to examine how the social norms shared in a classroom environment influence the development of movement dynamics of handwriting of children who participate in the environment. To look into this issue, the following aspects of the entire period of classroom learning of hiragana letters in Japanese 1st graders who had just entered primary school were studied: First, the structure of classroom events and the specific types of interaction and learning within such environment were described...
June 13, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28577346/scanning-of-own-versus-other-race-faces-in-infants-from-racially-diverse-or-homogenous-communities
#4
Ann E Ellis, Naiqi G Xiao, Kang Lee, Lisa M Oakes
We examined the role of community face experience on 6- and 8-month-old Caucasian infants' scanning of own- and other-race face scanning. We measured infants' proportional fixation time and scan path amplitudes as indices of face processing. Proportional fixation time to informationally rich face regions varied as a function of age and face race for infants living in a racially homogeneous community, whereas scan path amplitudes varied as a function of age and face race for infants living in a racially diverse community...
June 3, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28574579/the-effect-of-a-maternal-history-of-childhood-abuse-on-adrenocortical-attunement-in-mothers-and-their-toddlers
#5
Anna Fuchs, Eva Moehler, Franz Resch, Michael Kaess
We investigated circadian mother-child adrenocortical attunement in the context of a maternal history of childhood abuse (HoA). Mothers were screened after birth using the Childhood Trauma Questionnaire. Women reporting moderate or severe abuse formed the HoA group (n = 37; HoAG) and were compared with a non-maltreated comparison group (n = 45; CG). Three years later, cortisol awakening response (CAR) and diurnal slope (DSL) were assessed. Mother-child interaction was coded using the Emotional Availability Scales at 12 months of age...
June 2, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28561904/neonatal-abstinence-syndrome-neurobehavior-at-6-weeks-of-age-in-infants-with-or-without-pharmacological-treatment-for-withdrawal
#6
Nicole A Heller, Beth A Logan, Deborah G Morrison, Jonathan A Paul, Mark S Brown, Marie J Hayes
Use and abuse of prescription opioids and concomitant increase in Neonatal Abstinence Syndrome (NAS), a condition that may lead to protracted pharmacological treatment in more than 60% of infants, has tripled since 2000. This study assessed neurobehavioral development using the NICU Network Neurobehavioral Scale in 6-week old infants with prenatal methadone exposure who did (NAS+; n = 23) or did not (NAS-; n = 16) require pharmacological treatment for NAS severity determined by Finnegan Scale. An unexposed, demographically similar group of infants matched for age served as comparison (COMP; n = 21)...
May 31, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28561891/neonatal-oxytocin-and-vasopressin-manipulation-alter-social-behavior-during-the-juvenile-period-in-mongolian-gerbils
#7
Jack H Taylor, Jon Cavanaugh, Jeffrey A French
Oxytocin and vasopressin are important modulators of a wide variety of social behaviors, and increasing evidence is showing that these neuropeptides are important organizational effectors of later-life behavior as well. We treated day-old gerbil pups with oxytocin, vasopressin, an oxytocin receptor antagonist, a vasopressin V1a receptor antagonist, or saline control, and then measured received parental responsiveness during the early postnatal period and juvenile social behavior during weaning. Neonatal vasopressin treatment enhanced sociality in males, but not females, at both developmental time points...
May 31, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28561889/innervation-of-the-medial-prefrontal-cortex-by-tyrosine-hydroxylase-immunoreactive-fibers-during-adolescence-in-male-and-female-rats
#8
Jari Willing, Laura R Cortes, Joseph M Brodsky, Taehyeon Kim, Janice M Juraska
Adolescence is associated with continued maturation of the cerebral cortex, particularly the medial prefrontal cortex (mPFC). We have previously documented pruning in the number of neurons, dendrites, and synapses in the rat mPFC from preadolescence to adulthood, with the period of pubertal onset being particularly important. We hypothesized that dopaminergic innervation of this region, critical for executive functions, would also be influenced by pubertal onset. Here, we measured changes in the volume of tyrosine hydroxylase (TH) immunoreactive axons in all layers of the male and female mPFC from preadolescence to adulthood (postnatal Day (P) 25, 35, 45, 60, and 90) as a marker of dopaminergic innervation...
May 31, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28561888/affiliation-with-substance-using-peers-examining-gene-environment-correlations-among-parent-monitoring-polygenic-risk-and-children-s-impulsivity
#9
Kit K Elam, Laurie Chassin, Kathryn Lemery-Chalfant, Danielle Pandika, Frances L Wang, Kaitlin Bountress, Danielle Dick, Arpana Agrawal
Parental monitoring can buffer the effect of deviant peers on adolescents' substance use by reducing affiliation with substance-using peers. However, children's genetic predispositions may evoke poorer monitoring, contributing to negative child outcomes. We examined evocative genotype-environment correlations underlying children's genetic predisposition for behavioral undercontrol and parental monitoring in early adolescence via children's impulsivity in middle childhood, and the influence of parental monitoring on affiliation with substance-using peers a year and a half later (n = 359)...
May 31, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28561883/the-more-the-better-behavioral-and-neural-correlates-of-frequent-and-infrequent-vowel-exposure
#10
Sho Tsuji, Paula Fikkert, Yasuyo Minagawa, Emmanuel Dupoux, Luca Filippin, Maarten Versteegh, Peter Hagoort, Alejandrina Cristia
A central assumption in the perceptual attunement literature holds that exposure to a speech sound contrast leads to improvement in native speech sound processing. However, whether the amount of exposure matters for this process has not been put to a direct test. We elucidated indicators of frequency-dependent perceptual attunement by comparing 5-8-month-old Dutch infants' discrimination of tokens containing a highly frequent [hɪt-he:t] and a highly infrequent [hʏt-hø:t] native vowel contrast as well as a non-native [hɛt-haet] vowel contrast in a behavioral visual habituation paradigm (Experiment 1)...
May 31, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28555956/physiological-functioning-moderates-infants-sensory-sensitivity-in-higher-conflict-families
#11
Micah A Mammen, Alex Busuito, Ginger A Moore, Kelsey M Quigley, Kim Kopenhaver Doheny
Children exposed to parent conflict may be at risk for emotional and behavioral disorders by becoming sensitized to conflict cues in their environments. This study explored possible precursors to negative child outcomes associated with parent conflict by examining the relation between parent conflict and infants' (N = 36; 23-42 weeks; 44% female) behavioral sensitivity to general sensory stimuli (e.g., loud noises, physical touch). To determine whether infants' characteristic autonomic arousal and regulation moderated this association, infant baseline skin conductance (SC) and respiratory sinus arrhythmia (RSA) were measured...
May 26, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28542739/afternoon-cortisol-provides-a-link-between-self-regulated-anger-and-peer-reported-aggression-in-typically-developing-children-in-the-school-context
#12
Eva Oberle, Kaitlyn McLachlan, Nicole L A Catherine, Ursula Brain, Kimberly A Schonert-Reichl, Joanne Weinberg, Tim F Oberlander
Aggression jeopardizes positive development in children and predicts social and academic maladjustment in school. The present study determined the relationships among anger dysregulation (a marker of emotion regulation), cortisol activity (a biomarker of stress), and peer-nominated aggression in typically developing children in their everyday classroom setting (N = 151, Mean age = 10.86, SD =.74). Salivary cortisol was collected at 09:15, 11:45, and 14:45 hr across 4 consecutive days. Children provided self-reports of anger regulation; peers reported proactive and reactive aggressive behaviors...
May 22, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28475228/developmental-programming-of-happiness
#13
Louis A Schmidt, Paz Fortier, Ayelet Lahat, Alva Tang, Karen J Mathewson, Saroj Saigal, Michael H Boyle, Ryan J Van Lieshout
Being born at an extremely low birth weight (ELBW; <1,000 grams) is presumed to reflect a suboptimal intrauterine environment and thus presents an opportunity for examining developmental programming hypotheses. Interfacing prenatal programming and differential susceptibility hypotheses, we tested whether individuals with ELBW in different childhood rearing environments showed different attention biases to positive and negative facial emotions in adulthood. Using the oldest known, prospectively followed cohort of ELBW survivors, we found that relative to normal birth weight controls (NBW; >2,500 grams), ELBW survivors displayed the highest and lowest attention bias to happy faces at age 30-35, depending on whether their total family income at age 8 was relatively low (environmental match) or high (environmental mismatch), respectively...
May 5, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28436585/the-mobile-conjugate-reinforcement-paradigm-in-a-lab-setting
#14
Emily C Merz, Laraine McDonough, Yong Lin Huang, Sophie Foss, Elizabeth Werner, Catherine Monk
The mobile conjugate reinforcement task was administered to 4-month-old infants in a lab rather than a home setting where it is usually administered. Learning and retention patterns were comparable to those of infants tested in their homes, suggesting flexibility in where this task can be administered. These results pave the way for this task to be used with a broader range of infants for whom home visits are not practical or convenient (e.g., infants in child care). Developmental research conducted with a more diverse population of infants would facilitate our understanding of cognitive development very early in life...
April 24, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28436546/corrigendum-the-impact-of-early-environmental-interventions-on-structural-plasticity-of-the-axon-initial-segment-in-neocortex-m-nozari-t-suzuki-m-g-p-rosa-k-yamakawa-and-n-atapour
#15
(no author information available yet)
No abstract text is available yet for this article.
April 24, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28407207/in-memoriam-gilbert-w-meier-1927-2016
#16
Richard P Meier
No abstract text is available yet for this article.
April 13, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28391612/distress-vocalization-delay-in-the-neonate-lamb-as-a-neurobehavioral-assessment-tool
#17
Christine L Morton, Geoffrey Hinch, Alison Small
Acoustic features of infant distress vocalizations including latency and rate of emission are used as indices of neurological deficit and integrity in human and rodent neonates. This paper investigates the relationship between temporal characteristics of distress calls, elicited by an isolation stimulus, and indicators of neurobehavioral development over 12 hr postpartum in the neonate lamb. Delayed vocalization initiation was found to be associated with poor locomotor and orientation behavior reflecting the capacity of the lamb to reunite with and follow its dam, and a lowered rate of signal emission following commencement of vocalization...
April 9, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28383773/a-dissociation-between-renewal-and-contextual-fear-conditioning-in-juvenile-rats
#18
Chun Hui J Park, Despina E Ganella, Jee Hyun Kim
We investigated whether juvenile rats do not express renewal following extinction of conditioned fear due to their inability to form a long-term contextual fear memory. In experiment 1, postnatal day (P) 18 and 25 rats received 3 white-noise and footshock pairings, followed by 60 white-noise alone presentations the next day. When tested in a different context to extinction, P25 rats displayed renewal whereas P18 rats did not. Experiments 2A and 2B surprisingly showed that P18 and P25 rats do not show differences in contextual and cued fear, regardless of the conditioning-test intervals and the number of white-noise-footshock pairings received...
April 6, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28369808/recognizing-facial-expressions-of-emotion-in-infancy-a-replication-and-extension
#19
Kristina Safar, Margaret C Moulson
Infants may recognize facial expressions of emotion more readily when familiar faces express the emotions. Studies 1 and 2 investigated whether familiarity influences two metrics of emotion processing: Categorization and spontaneous preference. In Study 1 (n = 32), we replicated previous findings showing an asymmetrical pattern of categorization of happy and fearful faces in 6.5-month-old infants, and extended these findings by demonstrating that infants' categorization did not differ when emotions were expressed by familiar (i...
April 3, 2017: Developmental Psychobiology
https://www.readbyqxmd.com/read/28605017/the-manual-orienting-response-habituation-to-repeated-tactile-stimuli-in-preterm-neonates-discrimination-of-stimulus-locations-and-interstimulus-intervals
#20
Victoria Dumont, Jan Bulla, Nicolas Bessot, Julie Gonidec, Marc Zabalia, Bernard Guillois, Nadège Roche-Labarbe
Preterm infants frequently develop atypical sensory profiles, the tactile modality being particularly affected. However, there is a lack of recent investigation of neonatal tactile perception in a passive context, especially in preterms who are particularly exposed to this tactile stimuli. Our aims were to provide evidence of orienting responses (behavioral modifications directing subject's attention towards stimuli) and habituation to passive tactile stimuli in preterm neonates, to explore their ability to perceive spatial and temporal aspects of the stimulus, and to evaluate the effect of clinical factors on these abilities...
July 2017: Developmental Psychobiology
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