Abstract:
:Developmental effects of a single hydrocortisone (HC) injection (80 micrograms/g on day 2 postnatal) were compared in two closely related species, meadow voles (Microtus pennsylvanicus) and pine voles (M. pinetorum). Effects of hormone administration were assessed in terms of the development of swimming behavior (head/nose position and front paw movement), alterations in social interactions (spatial location with respect to a stimulus animal), and by changes in somatic and brain growth. Although adult patterns of swimming behavior were found to be quantitatively different in meadow and pine voles, normal maturation in both species involved a progressive elevation of head/nose position along with a gradual inhibition of front paw movement. Compared with saline controls, HC-treated meadow voles showed an accelerated attainment of their adult pattern, whereas hormone-treated pine voles displayed a retardation in their swimming development. HC administration similarly led to increased body weights in developing meadow voles but decreased body weights in young pine voles. There was a tendency for hormone-treated meadow voles to spend more time near a stimulus animal than their control counterparts, whereas the opposite was observed for pine voles. In both species, the HC group displayed decreased cerebral and cerebellar weights in adulthood, whereas other organs were generally unaffected by hormone administration. Neurochemical analyses revealed no treatment effects or treatment by species interactions with respect to cerebral DNA levels. On the other hand, treated meadow voles but not pine voles showed an elevated concentration of sulfatide, a myelin-related lipid. These results are the first to demonstrate divergent behavioral and neurochemical effects of early glucocorticoid administration in closely related species studied under the same conditions. Furthermore, in accordance with earlier experiments on rats, swimming behavior was shown to be a useful measure for assessing changes in neuromuscular maturation.
journal_name
Dev Psychobioljournal_title
Developmental psychobiologyauthors
Prohazka D,Novak MA,Meyer JSdoi
10.1002/dev.420190605subject
Has Abstractpub_date
1986-11-01 00:00:00pages
521-35issue
6eissn
0012-1630issn
1098-2302journal_volume
19pub_type
杂志文章abstract::Habituation of defensive attacks directed toward a threatening stimulus was investigated in neonatal garter snakes. The focus of the experiments was on differential effects of a simple experimental process in relation to species, litter, sex, and individual. In Experiment 1 newborn Thamnophis melanogaster from four li...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420220507
更新日期:1989-07-01 00:00:00
abstract::To determine whether bilateral olfactory bulbectomy led to a change in nursing behavior, and thus death, we bilaterally bulbectomized (BX) pups from 14 litters at 2, 7, and 11 days of age. Litters treated on Days 2 and 7 consisted of 3 BX pups, 2 surgical control (SC) pups, and 2 handling control (HC) pups. Litters tr...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420080207
更新日期:1975-03-01 00:00:00
abstract::The preweaning behavioral development was compared in 3 hamster species: the golden (Mesocricetus auratus), Chinese (Cricetulus griseus), and Djungarian (Phodopus sungorus). Differences in the age of appearance of action patterns could not be summarized by simply ranking species on either precocity or developmental sp...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420090404
更新日期:1976-07-01 00:00:00
abstract::Motor overflow is extraneous movement in a limb not involved in a motor action. Typically, overflow is observed in people with neurological impairments and in healthy children and adults during strenuous and attention-demanding tasks. In the current study, we found that young infants produce vast amounts of motor over...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.20595
更新日期:2012-05-01 00:00:00
abstract::Timing and direction of movement of the arms and hands of 7- and 11-month-old infants were examined during bimanual reaching for a transparent cube. Videotape analysis of frames from release of the hands to initial contact of one hand with the cube revealed that hand movement was more often temporally linked for 7-mon...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420190311
更新日期:1986-05-01 00:00:00
abstract::Using an eyelid conditioning paradigm modeled after that developed by Little, Lipsitt, and Rovee-Collier (1984), Fifer et al. (2010) demonstrated that newborn infants learn during sleep. This study examined the role of sleep state in neonatal learning. We recorded electroencephalogram (EEG), respiratory, and cardiovas...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21424
更新日期:2016-11-01 00:00:00
abstract::Four experiments assessed the acquisition of aversions by preweanling rats to odors experienced during isolation from their home-nest environment. Conditioned aversion occurred for animals given a second novel odor paired with the home-nest environment, depending upon the duration of the odor-isolation pairing. With a...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420180507
更新日期:1985-09-01 00:00:00
abstract::Male and female rats (T rats) given an injection of 75 microgram tri-iodothyronine (T3) and 25 microgram thyroxine (T4) on Day 3 after birth were raised under enriched (E) and impoverished (I) postweaning conditions. Observations of their open-field behavior and Days 63 and 112 revealed a higher rate of activity in T ...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420110410
更新日期:1978-07-01 00:00:00
abstract::The concept of instinct has been largely based on thinking which relies on an either or approach to determining the genesis of information required for the development of behavior patterns. In part, in response to criticisms of dichotomous views by Schneirla and Lehrman adherents of the view that there exist two disti...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.20275
更新日期:2007-12-01 00:00:00
abstract::Body temperature regulation involves the development of responses to cold and warm challenges. Matching our understanding of the development of body temperature regulation to warm challenges with that of cold challenges will enhance our understanding of the ontogeny of thermoregulation and reveal different adaptive sp...
journal_title:Developmental psychobiology
pub_type: 杂志文章,评审
doi:10.1002/dev.21588
更新日期:2018-01-01 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
pub_type: 杂志文章
doi:10.1002/dev.420110507
更新日期:1978-09-01 00:00:00
abstract::We investigated whether positive daily peer-interactions counteract the effects of isolation in Octodon degus. Twenty-five-day-old degus were either isolated (ISO), socially housed (SOCIAL), or isolated and allowed 1-hr daily peer interaction (PARTIAL-ISO). The animals were observed over 4 weeks. Just prior to isolati...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.20520
更新日期:2011-04-01 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::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
pub_type: 杂志文章
doi:10.1002/dev.420250304
更新日期:1992-04-01 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
pub_type: 杂志文章
doi:10.1002/dev.10151
更新日期:2004-01-01 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
pub_type: 杂志文章
doi:10.1002/dev.20354
更新日期:2009-03-01 00:00:00
abstract::To assess the effects of early postnatal undernutrition upon the developing abilities of infant and juvenile mice to acquire and retain a passive-avoidance response, we reared mice following birth in either "normally nourished" or "undernourished" conditions by maintaining litter sizes of 6 or 16, respectively. At age...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420130404
更新日期:1980-07-01 00:00:00
abstract::Ingestive behavior is a complex product of distributed central control systems that respond to a diverse array of internal and external sensory stimuli. Relatively little is known regarding the pathways and mechanisms by which relevant signals are conveyed to the neural circuits that ultimately control ingestive motor...
journal_title:Developmental psychobiology
pub_type: 杂志文章,评审
doi:10.1002/dev.20146
更新日期:2006-07-01 00:00:00
abstract::The Bar Harbor obese-hyperglycemic mouse (ob/ob) characteristically develops its obese phenotype during the postweaning period, when access to food is unrestricted and its behavioral phenotype of hyperphagia appears. In the present study suckling behavior (viz., nipple attachment latencies and total suckling time) of ...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420140109
更新日期:1981-01-01 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
abstract::Nutritive deprivation, suckling deprivation, gastronintestinal fill, and milk availability contribute to the control of sucking (as measured by jaw-muscle electromyograph) and ingestion of milk (provided via a tongue cannula) in 11-13-day-old rat pups. Depriving pups of the opportunity to suckle reliably increases sub...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420150605
更新日期:1982-11-01 00:00:00
abstract::In this review, we consider the literature on sensitive periods for language acquisition from the perspective of the stroke recovery literature treated in this Special Issue. Conceptually, the two areas of study are linked in a number of ways. For example, the fact that learning itself can set the stage for future fai...
journal_title:Developmental psychobiology
pub_type: 杂志文章,评审
doi:10.1002/dev.20626
更新日期:2012-04-01 00:00:00
abstract::In order to examine the effects of cannabinoids, malnutrition, and their possible interaction upon the developing rat fetus, female Wistar rats were exposed to cannabis smoke, placebo smoke, or no smoke while concurrently consuming 1 of 3 diets differing in protein concentration (8%, 24%, 64%). Both the diet and drug ...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420130605
更新日期:1980-11-01 00:00:00
abstract::As part of a vertebrate-wide trend toward left brain/right side asymmetries in routine whole-body actions, marine mammals show signs of rightward appendage-use biases, and short- and long-term turning asymmetries most of which are unique in non-humans in being just as strong as right handedness, and even stronger than...
journal_title:Developmental psychobiology
pub_type: 杂志文章,评审
doi:10.1002/dev.21114
更新日期:2013-09-01 00:00:00
abstract::A model depicting 2 horizontally positioned black spots resembling facing eyes, as compared with models depicting other spot arrangements, elicits intense flight activity in young African jewel fish (Hemichromis bimaculatus) under 5 months of age and 7-month-old subadults reared apart from conspecifics with eyeless ca...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420120408
更新日期:1979-07-01 00:00:00
abstract::The aim of this study was to determine the impact of maternal age on executive function and the moderating effects of women's maternal status and early-life experiences. Four groups of women were assessed as a function of their age (teens vs. adults) and maternal status (mothers vs. nonmothers). Participants completed...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21766
更新日期:2018-11-01 00:00:00
abstract::Mallard ducklings (Anas platyrhynchos) inhibit their vocal and locomotor behavior upon hearing the maternal alarm call of their species. This study assesses the effects of varying acoustic features of alarm calls on the ducklings' freezing response (i.e., vocal and locomotor inhibition). Domestic mallard (Peking) duck...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.420190402
更新日期:1986-07-01 00:00:00
abstract::There is very little research comparing great ape and human cognition developmentally. In the current studies we compared a cross-sectional sample of 2- to 4-year-old human children (n=48) with a large sample of chimpanzees and bonobos in the same age range (n=42, hereafter: apes) on a broad array of cognitive tasks. ...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21125
更新日期:2014-04-01 00:00:00
abstract::Succession of gut microbial community structure for newborns is highly influenced by early life factors. Many preterm infants cared for in the NICU are exposed to parent-infant separation, stress, and pain from medical care procedures. The purpose of the study was to investigate the impact of early life stress on the ...
journal_title:Developmental psychobiology
pub_type: 杂志文章
doi:10.1002/dev.21826
更新日期:2019-07-01 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