Effects of an enriched environment of subsequent fear reactions of lambs and ewes.

abstract：:Spontaneous movements of premature infants between 25 and 34 weeks conceptional age were observed for 1 hr on two or three occasions. Subjects had low-risk prognoses and were clinically stable at the time of testing. Behavioral acts were scored using a 0/1 time sampling technique in 60 continuous, 1-min time blocks. T...

journal_title：Developmental psychobiology

authors： Hayes MJ,Plante LS,Fielding BA,Kumar SP,Delivoria-Papadopoulos M

更新日期：1994-07-01 00:00:00

abstract：:We assessed the association of maternal style and infant behavior of group-living Japanese macaques during the first year of infant development. We tested the hypothesis that different mothering styles were correlated with the behavioral repertoire of infants at three different developmental stages. We expected that i...

journal_title：Developmental psychobiology

authors： Bardi M,Huffman MA

更新日期：2002-12-01 00:00:00

abstract：:The coordination of physiological processes between parents and infants is thought to support behaviors critical for infant adaptation, but we know little about parent-child physiological coregulation during the preschool years. The present study examined whether time-varying changes in parent and child respiratory si...

journal_title：Developmental psychobiology

authors： Lunkenheimer E,Tiberio SS,Buss KA,Lucas-Thompson RG,Boker SM,Timpe ZC

更新日期：2015-12-01 00:00:00

abstract：UNLABELLED:Autonomic control of blood pressure (BP) and heart rate (HR) was tested in offspring of rat dams that were unmanipulated (controls) or exposed repeatedly to either (1) Postnatal restraint, (2) Postnatal s.c. injections of alkaline saline, or (3) Prenatal s.c. alkaline saline. Under urethane anesthesia, BP wa...

journal_title：Developmental psychobiology

authors： Mills E,Bruckert JW,Smith PG

更新日期：1990-12-01 00:00:00

abstract：:Infant rat pups were exposed to a novel odor (orange or cedar) while they received tactile stimulation (stroking of the body) or were presented with odor or stroking alone. The effects of these treatments were assessed on pups' performance in a huddling test (Experiment 1 and 2) and an independent feeding test (Experi...

journal_title：Developmental psychobiology

authors： Sullivan RM,Brake SC,Hofer MA,Williams CL

更新日期：1986-11-01 00:00:00

abstract：:The stability of children's skin conductance level during baselines (SCL-B) and SCL reactivity (SCL-R) were examined longitudinally. During two laboratory sessions (T1 and T2), 2 years apart, children participated in procedures during which they were exposed to two stressors namely exposure to an audiotaped conflict b...

journal_title：Developmental psychobiology

authors： El-Sheikh M

更新日期：2007-03-01 00:00:00

abstract：:We examined regional brain electrical activity (EEG), heart rate, and subjective responses at rest and during the presentation of videoclips designed to elicit a range of emotions (e.g., sadness, anger, happiness, fear) among a sample of healthy 4-year-old children selected for temperamental shyness. We found that shy...

journal_title：Developmental psychobiology

authors： Theall-Honey LA,Schmidt LA

更新日期：2006-04-01 00:00:00

abstract：:This article reviews 30 years of work demonstrating that interactions between mother and newborn infant in the period just after birth influence the physiology and behavior of both. Close body contact of the infant with his/her mother helps regulate the newborn's temperature, energy conservation, acid-base balance, ad...

journal_title：Developmental psychobiology

authors： Winberg J

更新日期：2005-11-01 00:00:00

abstract：:Separate fields of inquiry indicate (a) that prenatal stress is associated with heightened behavioral and physiological reactivity and (b) that these postnatal phenotypes are themselves associated with increased susceptibility to both positive and negative environmental influences. Collectively, this work supports Plu...

journal_title：Developmental psychobiology

authors： Hartman S,Sayler K,Belsky J

更新日期：2019-07-01 00:00:00

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 spa...

journal_title：Developmental psychobiology

authors： Sun SY,Baker LL,Bradley NS

更新日期：2018-03-01 00:00:00

abstract：:We examined associations between children's cognitive performance and both basal respiratory sinus arrhythmia (RSA) and RSA regulation to a reaction time task. Cognitive performance was examined in the lab via standardized tests of cognitive functioning (Woodcock-Johnson III) and a reaction time task. Results suggest ...

journal_title：Developmental psychobiology

authors： Staton L,El-Sheikh M,Buckhalt JA

更新日期：2009-04-01 00:00:00

abstract：:The ontogeny of FM pulses emitted by bats is a process of maturation that is not easily altered by experimental manipulation during early development. Infants that were hand-raised and infants that were raised by mothers with altered voices (the superior laryngeal nerves were cauterized pre- and postpartum) emitted no...

journal_title：Developmental psychobiology

authors： Gould E

更新日期：1975-07-01 00:00:00

abstract：:Early-life stress confers profound and lasting risk for developing cognitive, social, emotional, and physical health problems. The effects of stress on the developing brain contribute to this risk, with frontolimbic circuitry particularly susceptible to early experiences, possibly due to its innervation with glucocort...

journal_title：Developmental psychobiology

authors： Cohodes EM,Kitt ER,Baskin-Sommers A,Gee DG

更新日期：2020-03-29 00:00:00

abstract：:We have shown that adults exposed to ethanol during adolescence exhibit a deficit in the retention of context fear, reminiscent of that normally seen in preweanling rats. However, preweanlings have been reported to exhibit a potentiation of context fear when they are conditioned in the presence of a tone. Therefore, t...

journal_title：Developmental psychobiology

authors： Broadwater MA,Spear LP

更新日期：2014-07-01 00:00:00

abstract：:Stress influences a wide variety of outcomes including cognitive processing. In the rat, early life maternal care can influence developing offspring to affect both stress reactivity and cognitive processes in adulthood. The current study assessed if variations in early life maternal care can influence cognitive perfor...

journal_title：Developmental psychobiology

authors： Sakhai SA,Saxton K,Francis DD

更新日期：2016-01-01 00:00:00

abstract：:Three experiments were conducted to control for the effects of housing conditions during play deprivation on subsequent play rebound in periadolescent rats. To address play deprivation without the confound of social isolation, in Experiment 1, pairs of subjects were housed either in cages divided by wire mesh that all...

journal_title：Developmental psychobiology

authors： Holloway KS,Suter RB

更新日期：2004-01-01 00:00:00

abstract：:Delay of gratification in 3 chimpanzees (Pan troglodytes) was examined by using a paradigm based on research with children. The chimpanzees either pressed a door-bell button during a trial and received one reward (the immediate reward) or did not press the doorbell and received another reward (the delayed reward). Two...

journal_title：Developmental psychobiology

authors： Beran MJ,Savage-Rumbaugh ES,Pate JL,Rumbaugh DM

更新日期：1999-03-01 00:00:00

abstract：:Using techniques developed by Hall (1975) and modified by Diaz (1991), we maintained rat pups in total social isolation from the time they were 2 or 3 days of age until they were 42 days old. We found that rat pups reared in social isolation exhibited susceptibility to social enhancement of food preference indistingui...

journal_title：Developmental psychobiology

authors： Galef BG Jr,Smith MA

更新日期：1994-03-01 00:00:00

abstract：:This third paper in a series of three related developmental trajectories of bimanual object acquisition and non-differentiated bimanual manipulation (NDBM) to patterns of role-differentiated bimanual manipulation (RDBM) development to help identify the sequence of events that might predict (and potentially facilitate)...

journal_title：Developmental psychobiology

authors： Babik I,Michel GF

更新日期：2016-03-01 00:00:00

abstract：:Motor activity increases during development and typically peaks before reproductive maturity. Males may become more active than do females, and this sex difference in activity may be a mechanism contributing to sex-biased dispersal. The generality of the link between sex differences in activity and sex differences in ...

journal_title：Developmental psychobiology

authors： Mayeaux DJ

更新日期：2008-04-01 00:00:00

abstract：:The maternal care received by rat pups malnourished by being rotated between lactating females and nonlactating foster mothers was examined. During the 1st 2 weeks after birth there were no differences in maternal care, but during the 3rd week females caring for pups fed only 8 hr daily nursed more and built better ne...

journal_title：Developmental psychobiology

authors： Fleischer SF,Turkewitz G

更新日期：1981-07-01 00:00:00

abstract：:Mammalian infant behavior directed toward caregivers is critical to survival and may play a role in establishing social bonds. Most mammalian infants vocalize when isolated. Rat pups vocalize at a higher rate when isolated following an interaction with an adult female than after an interaction with littermates, a phen...

journal_title：Developmental psychobiology

authors： Muller JM,Moore H,Myers MM,Shair HN

更新日期：2009-03-01 00:00:00

abstract：:Features of the early postnatal environment profoundly shape later physical and behavioral phenotypes. The amount of licking/grooming that rat dams direct towards their offspring has durable consequences, including behavioral and physiological dimensions of stress reactivity, cognition, and reproductive behavior. We e...

journal_title：Developmental psychobiology

authors： Starr-Phillips EJ,Beery AK

更新日期：2014-07-01 00:00:00

abstract：:A U-shaped function of behavioral growth characterizes the early ontogeny of face grooming in mice. In the first few postnatal days (0-100 hr), mice groom their face by using temporally isolated strokes, or bouts of strokes, which vary in amplitude and symmetry. Later on (100-200 hr), bouts disappear, asymmetry is eli...

journal_title：Developmental psychobiology

authors： Golani I,Fentress JC

更新日期：1985-11-01 00:00:00

abstract：:C3H/HeJ male mice, an inbred strain showing retinal degeneration (rd), and normal-eyed DBA/IJ male mice were studied in a task requiring discrimination of horizontally and vertically oriented rectangles. The apparatus was modified Yerkes discrimination apparatus. The mice were given 30 days of discrimination training,...

journal_title：Developmental psychobiology

authors： Schnitzer SB,Beane ME

更新日期：1976-03-01 00:00:00

abstract：:Under standard conditions involving isolation and cooling, it has been documented that intraoral infusion of milk and injection of the intestinal peptide cholecystokinin (CCK) result in an attenuation in ultrasonic vocalizations (USV) emitted by infant rat pups. One of the most effective stimuli in inhibiting ingestio...

journal_title：Developmental psychobiology

authors： Nelson EE,Alberts JR

更新日期：2002-03-01 00:00:00

abstract：:Behavioral and neuromorphological data have suggested at least a partial interaction between the effects of norepinephrine-depleting neonatal 6-OHDA lesions and the effects of rearing in enriched environments. The present study examined the impact of both of these early manipulations upon regional brain uptake of 14C-...

journal_title：Developmental psychobiology

authors： Nobrega JN,Saari MJ,Armstrong JN,Reed T

更新日期：1992-04-01 00:00:00

abstract：:The aim of this study was to better understand the mechanisms underlying the motor difficulties encountered by children born very preterm (VPT) without major sequelae from preterm birth. We compared the organization of visuo-manual aiming in preterm and full term (FT) preschool aged children based on performance and k...

journal_title：Developmental psychobiology

authors： Sagnol C,Debillon T,Debû B

更新日期：2007-05-01 00:00:00

abstract：:The effect of a positive first-time experience on adrenocortical activity was examined in 48 6- to 13-month-old infants who took part in two sessions of a YMCA-like mother-infant swim class. Experience was manipulated by comparing Novice swimmers with infants who previously had taken a swim class, and by examining res...

journal_title：Developmental psychobiology

authors： Hertsgaard L,Gunnar M,Larson M,Brodersen L,Lehman H

更新日期：1992-07-01 00:00:00

abstract：:In the guinea pig, the presence of the mother, but not littermates, has been found to inhibit hypothalamic-pituitary-adrenal (HPA) responses during brief (30-60 min) exposure to novel surroundings both prior to and several weeks following the completion of weaning. In the present study, we found that an unfamiliar adu...

journal_title：Developmental psychobiology

authors： Graves FC,Hennessy MB

更新日期：2000-03-01 00:00:00