Stimulus intensity modulates associative and nonassociative responding in preweanling rats.

abstract：:This study investigates the effects of a biologically relevant stressor, crowding, on the development of neurons in the major teleostean brain area, the optic tectum. Adult jewel fish were reared for approximately 4 years under conditions of moderate density (3.3 liter/fish), or under uncrowded control conditions (25 ...

journal_title：Developmental psychobiology

authors： Burgess JW,Coss RG

更新日期：1982-09-01 00:00:00

abstract：:The effects of conditioning paradigm and interstimulus interval (ISI) were evaluated in this study of the development of associative learning in rats. The acquisition of classical eyeblink conditioning (EBC) was examined in two paradigms (trace vs. delay), with three different ISIs (short, medium, or long) at two ages...

journal_title：Developmental psychobiology

authors： Claflin DI,Garrett T,Buffington ML

更新日期：2005-07-01 00:00:00

abstract：:The present study tested the hypothesis that around the age of weaning, human infants are more interactive with their environment immediately after breastfeeding. To this aim, we assessed 4- to 6-month-old infants' responsiveness to a rotating, musical mobile before breastfeeding on one test day, and after breastfeedi...

journal_title：Developmental psychobiology

authors： Gerrish CJ,Mennella JA

更新日期：2000-01-01 00:00:00

abstract：:Mother-reared and surrogate-peer-reared rhesus monkeys were separated from their respective attachment objects at 6 months of age and tested for the following 9 weeks to determine their home-cage behavior and their pituitary-adrenocortical responses to stress. Both groups displayed a strong immediate behavioral respon...

journal_title：Developmental psychobiology

authors： Meyer JS,Novak MA,Bowman RE,Harlow HF

更新日期：1975-09-01 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：:Animal models of prenatal ethanol exposure are necessary to more fully understand the effects of ethanol on the developing embryo/fetus. However, most models employ procedures that may produce additional maternal stress beyond that produced by ethanol alone. We employed a daily limited-access ethanol intake model call...

journal_title：Developmental psychobiology

authors： Boehm SL 2nd,Moore EM,Walsh CD,Gross CD,Cavelli AM,Gigante E,Linsenbardt DN

更新日期：2008-09-01 00:00:00

abstract：:Although high circulating levels of glucocorticoids are associated with impaired cognitive performance in adults, less is known about this relationship in infancy. Furthermore, because studies have relied on acute cortisol measures in blood plasma or saliva, interpretation of the results may be difficult as acute meas...

journal_title：Developmental psychobiology

authors： Dettmer AM,Novak MF,Novak MA,Meyer JS,Suomi SJ

更新日期：2009-12-01 00:00:00

abstract：:Fourteen infant capuchins and eight squirrel monkeys reared by their mothers in captive species-typical social groups were observed from birth through 7 months. Motoric altriciality of the neonatal capuchin relative to the squirrel monkey is a key feature of behavioral differences between the species in the first few ...

journal_title：Developmental psychobiology

authors： Fragaszy DM,Baer J,Adams-Curtis L

更新日期：1991-09-01 00:00:00

abstract：:Lactating Mongolian gerbils, like lactating Norway rats, reliably lick some pups in their litters more than they lick others. Male gerbil pups are licked more by their dams than are their sisters and some males and some females within each litter are licked more often than are their sibs of the same sex. In the presen...

journal_title：Developmental psychobiology

authors： Clark MM,Bone S,Galef BG Jr

更新日期：1989-05-01 00:00:00

abstract：:The ontogeny of the temporal context modulation of conditioned taste aversion was studied in male Wistar rats using a palatable 1% NaCl solution. A procedure that included two saline preexposures, a single pairing saline-lithium chloride (0.15 M; 1% b.w.) either at the same or a different time of day of preexposures a...

journal_title：Developmental psychobiology

authors： Manrique T,Gámiz F,Morón I,Ballesteros MA,Gallo M

更新日期：2009-03-01 00:00:00

abstract：:Infant gerbils were deprived of food by removing their mother from the cage for 3 hr on alternate days, during which time they remained with their father. These infants were compared with a control group which remained with their mother while the father was removed. Litters lost weight when deprived of food but they r...

journal_title：Developmental psychobiology

authors： McCauley PJ,Elwood RW

更新日期：1984-03-01 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：:A longitudinal study of hand preferences was assessed in a sample of 53 captive chimpanzees. Four measures of laterality assessed during the first 3 months of life were correlated with three measures of hand preferences assessed when the subjects were between 2 and 5 years of age. In addition, the effect of rearing en...

journal_title：Developmental psychobiology

authors： Hopkins WD,Bard KA

更新日期：2000-05-01 00:00:00

abstract：:This study investigates bidirectional associations between adolescents' daily experiences of victimization and aggression perpetration within friendships. We investigated (a) across-day associations between victimization and aggression perpetration; (b) morning cortisol activity as a moderator of cross-day victimizati...

journal_title：Developmental psychobiology

authors： Arbel R,Schacter HL,Han SC,Timmons AC,Spies Shapiro L,Margolin G

更新日期：2019-09-01 00:00:00

abstract：:An infant-controlled tactile habituation without visual control procedure was used to evaluate the ability of 32 late-preterm neonates (mean gestational age: 34 weeks) and 32 early-term neonates (mean gestational age: 38 weeks) to actively explore with hands objects varying in texture (smooth, granular). Holding time ...

journal_title：Developmental psychobiology

authors： Molina M,Sann C,David M,Touré Y,Guillois B,Jouen F

更新日期：2015-04-01 00:00:00

abstract：:In this article, I use the example of emotions to illustrate how various concepts of homology can play a role in developmental psychology by showing how developmental and evolutionary approaches to the classification of psychological traits complement and constrain one another. In order to do this I argue against the ...

journal_title：Developmental psychobiology

authors： Clark JA

更新日期：2013-01-01 00:00:00

abstract：:The peripubertal period in the female rat is the time when the stimulatory effects of opioids on prolactin (PRL) secretion develop. In the adult rat, the administration of chronic high-dose morphine has been shown to attenuate the ability of opiates to stimulate PRL secretion. One function of PRL in adult virgin rats ...

journal_title：Developmental psychobiology

authors： Byrnes EM,Rigero BA,Bridges RS

更新日期：2003-12-01 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：:Fluctuations in body movement and visual inspection were measured over minutes in 3-month-old infants to look for evidence of coupling. In Experiment 1, infants (n = 12) looked ad libitum at two identical pictures for an average of 7.3 min. Analysis of the spontaneous fluctuations in movement and inspection revealed t...

journal_title：Developmental psychobiology

authors： Bacher LF,Robertson SS

更新日期：2001-09-01 00:00:00

abstract：:Drawing on conceptual models illustrating the advantages of a multisystemic, interactive, developmental approach to understanding development, the present study examines the covariation of stress and sex hormones across the adolescent transition and the effect of early life stress (ELS) on neuroendocrine coupling to g...

journal_title：Developmental psychobiology

authors： Ruttle PL,Shirtcliff EA,Armstrong JM,Klein MH,Essex MJ

更新日期：2015-09-01 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：:Previous research has revealed that fetuses detect and respond to extrauterine stimuli such as maternal movement and speech, but little attention has been cast on how fetuses may directly influence and respond to each other in the womb. This study investigated whether motor activity of E20 rat fetuses influenced the b...

journal_title：Developmental psychobiology

authors： Brumley MR,Hoagland R,Truong M,Robinson SR

更新日期：2018-04-01 00:00:00

abstract：:Maternal emotion dysregulation (ED) plays a crucial role in the development of psychopathology in children. The current study aimed to investigate parenting stress as a mediator of the relationship between maternal emotion dysregulation and child startle potentiation, with child sex as a moderator. Mothers were interv...

journal_title：Developmental psychobiology

authors： Cao M,Powers A,Cross D,Bradley B,Jovanovic T

更新日期：2017-12-01 00:00:00

abstract：:Spontaneous between-limb movement synchronization is described as the amount of concurrent limb movement observed in 7--19-day chick embryos. At early stages, a wing moved as often with the ipsilateral leg as with the contralateral wing. Later, between-girdle (ipsilateral wing-leg) synchronization progressively decrea...

journal_title：Developmental psychobiology

authors： Provine RR

更新日期：1980-03-01 00:00:00

abstract：:Head-turning responses to somesthetic stimulation of the perioral region were studied at weekly intervals in 25 prematurely born infants. No regular changes associated with age were evident. The premature infants were more likely to turn towards than away from a stimulus; however, they were less so than are full-term ...

journal_title：Developmental psychobiology

authors： Lewkowicz D,Gardner J,Turkewitz G

更新日期：1979-11-01 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：:Three pigtail infant monkeys (Macaca nemestrina) were separated from their mothers shortly after birth and raised in social isolation on cloth surrogates. At about 24 weeks of age they were surgically implanted with multichannel biotelemetry systems. Following the collection of baseline behavioral and physiological da...

journal_title：Developmental psychobiology

authors： Reite M,Short R,Seiler C

更新日期：1978-09-01 00:00:00

abstract：:Stimuli of the same modality tend to be organized along a "natural preference scale." This study examined the ability of six- and nine-day-old rat pups to acquire appetitive learning, when the CS was one of two differently "naturally preferred" tactile stimuli (floor textures: rug and plywood). In Experiment 1, all pu...

journal_title：Developmental psychobiology

authors： Rakover-Atar S,Weller A

更新日期：1997-01-01 00:00:00

abstract：:This study examined in domestic chicks the time-course of adaptation to a new object after having established strong preferences for a previous stimulus (during the first 3 days of life). By interchanging the stimuli to which the animal was exposed, and by confining the animal exclusively with the new object for some ...

journal_title：Developmental psychobiology

authors： Einsiedel AA Jr

更新日期：1975-11-01 00:00:00

abstract：:Very-low-birth-weight infants are at much higher risk for cognitive and language delays but the nature of such deficits is not clearly understood. Given increasing rates of prematurity and infants born very-low-birth-weight, examination of mechanisms that underlie poorer developmental outcome is essential. We investig...

journal_title：Developmental psychobiology

authors： Ortiz-Mantilla S,Choudhury N,Leevers H,Benasich AA

更新日期：2008-03-01 00:00:00