Abstract:
:In humans, maternal cues guide newborns to the maternal breast, and transitional cues may be present in maternal-fetal fluids. The aim of the present study was to determine the consistent presence of sensorial cues in three maternal-fetal fluids--amniotic fluid, colostrum, and milk--and test the ability of these cues to produce appetitive responses in newborns. In the analytical study, gas chromatography-mass spectrometry (GC-MS) detected eight fatty acids consistently present in the amniotic fluid, colostrum, and milk from 12 healthy volunteers, but we do not find a mammalian pheromone, identified in another mammalian species (rabbits), in another 30 volunteers. In the behavioral study, we explored the ability of amniotic fluid or its fatty acids to produce appetitive responses in 19 human newborns <24 hr after birth. Exposure to swabs impregnated with amniotic fluid or an artificial fatty acid mixture produced a longer duration of facial reactions that suggested appetitive (sucking) movements compared with respective vehicles (i.e., propylene glycol or centrifuged amniotic fluid with a low fatty acid content verified by GC-MS). We conclude that the fatty acids contained in amniotic fluid may constitute a transitional sensorial cue that guides newborns to the maternal breast.
journal_name
Dev Psychobioljournal_title
Developmental psychobiologyauthors
Contreras CM,Gutiérrez-García AG,Mendoza-López R,Rodríguez-Landa JF,Bernal-Morales B,Díaz-Marte Cdoi
10.1002/dev.21012subject
Has Abstractpub_date
2013-04-01 00:00:00pages
221-31issue
3eissn
0012-1630issn
1098-2302journal_volume
55pub_type
杂志文章abstract::Emerging evidence suggests that as with adults, dismissing children underreport their psychological distress relative to physiological indicators of their experience (startle response, neural signals). In this report, we extend these observations to neuroendocrine reactivity. One hundred and six 8-12-year-old children...
journal_title:Developmental psychobiology
pub_type: 杂志文章,随机对照试验
doi:10.1002/dev.21107
更新日期:2014-04-01 00:00:00
abstract::The prenatal development of cyclic motility (CM) in the human is disrupted by maternal diabetes, but appears normal by the end of gestation. To determine whether birth and adaptation to postnatal life reveal new or persisting abnormalities in CM, 24 newborn infants of insulin-dependent diabetic mothers (IDMs) and 24 n...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420210507
更新日期:1988-07-01 00:00:00
abstract::Reduction of reflex startle by brief changes in prestimulation is a robust phenomenon in adults of several species. Although the phenomenon does not require structures above midbrain, it has a long and uneven developmental course. This study of human infants assessed prestimulus effects at 15 months, within a period w...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420220203
更新日期:1989-03-01 00:00:00
abstract::This study examined the role of sensorimotor system noise in the organization of the force output of the thumb and index finger and the coordination between the two digits in an isometric pinch grip force task as a function of age (6, 8, 10, 18-22 years), feedback condition (with and without visual feedback informatio...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.10051
更新日期:2002-11-01 00:00:00
abstract:INTRODUCTION:Extensive research has supported the importance of children's positive affect in fostering prosperous psychosocial adjustment. Children's positive affect is believed to be significantly shaped by their environment in general and their caregivers' positive affect in particular. The current study investigate...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21939
更新日期:2020-09-01 00:00:00
abstract::Handedness is an aspect of hemispheric specialization whose pattern of expression may signal an unusual specialization that in turn, may underlie several developmental psychopathologies. It is generally believed that infant handedness is neither stable nor reliable and hence, cannot be used as an early marker of poten...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.20161
更新日期:2006-09-01 00:00:00
abstract:INTRODUCTION:The long allele of the DRD4 gene can confer different behavioral and emotional phenotypes depending upon environmental exposure, although the physiological changes underlying these phenotypes are not fully known. We sought to extend this work by assessing the interaction of the DRD4 gene and exposure to pe...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21539
更新日期:2017-09-01 00:00:00
abstract::Honeybees (Apis mellifera) can be readily conditioned in the laboratory to specific odors paired with a subsequent sucrose reward. A series of experiments are reported which demonstrate that the ability of bees to acquire and retain this learning is affected by the stage of behavioral development (caste). Results show...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:
更新日期:1999-01-01 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
pub_type: 杂志文章
doi:10.1002/dev.20286
更新日期:2008-04-01 00:00:00
abstract::Generalization of a conditioned taste aversion in infant rats and how this is affected by stimulus preexposure was investigated in a series of experiments. In Experiment 1 generalization of a conditioned aversion between two tastes (sweet and salty) was found, and the effect of tastes preexposure was a reduction in ge...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/(sici)1098-2302(199912)35:4<304::aid-dev5>
更新日期:1999-12-01 00:00:00
abstract::The cardiac orienting response to species-specific songs was measured in young swamp sparrows and song sparrows. Swamp sparrows respond with significantly greater deceleration to conspecific songs than to songs of the sympatric song sparrow. This discriminatory ability is operating during the sensitive period for song...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420130508
更新日期:1980-09-01 00:00:00
abstract::Rat dams differ naturally in the level of maternal care they provide to their offspring within the same litter. We explored possible mechanisms of differential maternal care focused on genetic variation. We examined single nucleotide polymorphisms in the glucocorticoid receptor, FK506-binding protein, and serotonin tr...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21770
更新日期:2018-12-01 00:00:00
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
pub_type: 杂志文章
doi:10.1002/dev.420270503
更新日期:1994-07-01 00:00:00
abstract::Preweanling rats, 15 days of age, were placed in an unfamiliar cage containing 1 of a variety of surrogate conspecific stimuli. The surrogate stimuli consisted of a rat-sized aluminum tube covered with soft fluffy synthetic fur, a tanned rat pelt, felt, and an aluminum sheet. The surrogate was either maintained at amb...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420140206
更新日期:1981-03-01 00:00:00
abstract::Fear conditioning studies in adults have found that posttraumatic stress disorder (PTSD) is associated with heightened fear responses and impaired discrimination. The objective of the current study was to examine the association between PTSD symptoms and fear conditioned responses in children from a highly traumatized...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21313
更新日期:2015-11-01 00:00:00
abstract::Observation of cortisol and behavioral responses to routine inoculation was conducted at 18 months for infants in a longitudinal sample whose stress responses had been observed at 2, 4, and 6 months of age. At 18 months, infants showed an increase in cortisol level over base to the perturbation. The magnitude of this ...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420280804
更新日期:1995-12-01 00:00:00
abstract::Contractile activity of the uterus before the onset of labor (uterine contractures) has been described in a number of species and provides a powerful source of repeated stimulation for the fetus throughout much of gestation. To understand how fetal behavior responds to this dynamic aspect of the intrauterine environme...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/(SICI)1098-2302(199612)29:8<667::AID-DEV3>
更新日期:1996-12-01 00:00:00
abstract::A question still to be answered is whether ethanol initiation has a greater effect on ethanol consumption if it occurs during adolescence than in adulthood. This study assessed the effect of ethanol initiation during adolescence or adulthood on voluntary ethanol consumption when animals were still within the same age ...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21101
更新日期:2014-04-01 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
pub_type: 杂志文章
doi:10.1002/dev.420230806
更新日期:1990-12-01 00:00:00
abstract::An autoshaping procedure was used to test the notion that conditioned stimuli (CSs) gain greater incentive salience during adolescence than young adulthood under conditions of social isolation rearing and food restriction. Rats were single-housed and placed on food restriction during 10 daily training sessions in whic...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21548
更新日期:2017-11-01 00:00:00
abstract::The effects of neonatal undernutrition in rats on food and water regulation, external indices of development, and long-term regulatory behavior were investigated. Undernutrition produced retardation in some external indices of development. The ability to eat, drink, and maintain body weight at weaning were not serious...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420110205
更新日期:1978-03-01 00:00:00
abstract::It is clear that the ability to learn new speech contrasts changes over development, such that learning to categorize speech sounds as native speakers of a language do is more difficult in adulthood than it is earlier in development. There is also a wealth of data concerning changes in the perception of speech sounds ...
journal_title:Developmental psychobiology
pub_type: 杂志文章,评审
doi:10.1002/dev.20611
更新日期:2012-09-01 00:00:00
abstract::Kittens studied from 7 days onwards revealed that the earliest age at which cardiac conditioning can be established is 30 days, after some 30 light-electric shock associations. Older kittens showed both cardiac as well as motor conditioning. Animals younger than 21 days old had no well-defined cardiac responses to the...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420140111
更新日期:1981-01-01 00:00:00
abstract::Socioeconomic status (SES) appears to be an important contextual factor in children's developmental outcomes, including their responses to stress. However, some children are more susceptible to its effects than others. Hair cortisol is a newer method of assessing the activity of the HPA axis, providing cumulative cort...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.22014
更新日期:2021-01-01 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
pub_type: 杂志文章
doi:10.1002/dev.21343
更新日期:2016-01-01 00:00:00
abstract::The consistent gender differences favoring males in some spatial abilities like mental rotation have raised the question of whether testosterone or other gonadal hormones contribute to these differences--especially because such gender differences seem to appear mainly from the age of puberty on. Studies generally sugg...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21333
更新日期:2016-01-01 00:00:00
abstract::The purpose of the study was to determine the specific periods during pregnancy in which human fetal exposure to stress hormones affects newborn physical and neuromuscular maturation. Blood was collected from 158 women at 15, 19, 25, and 31 weeks' gestation. Levels of placental corticotropin-releasing hormone (CRH) an...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.20293
更新日期:2008-04-01 00:00:00
abstract::Previous research has shown that there is an ontogenetic shift in the spatial code of sound frequency in the cochlea and central auditory nuclei. During ontogenesis, a given area of the basilar membrane or central auditory nuclei is maximally stimulated by sounds of progressively higher frequencies. Here, a similar on...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420200208
更新日期:1987-03-01 00:00:00
abstract::Rodent models indicate that parenting shapes offspring outcomes by programming the hypothalamic-pituitary-adrenal axis response to stress and, ultimately, altering brain structure and function. The present study tested this hypothesis and explored possible timing-dependent associations in a longitudinal sample of chil...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21788
更新日期:2019-01-01 00:00:00
abstract::Biological and social influences both shape emotion regulation. In 380 low-income children, we tested whether biological stress profile (cortisol) moderated the association among positive and negative home environment factors (routines; chaos) and emotion regulation (negative lability; positive regulation). Children (...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21471
更新日期:2017-01-01 00:00:00