Carrying Position Influences Infant Behavior
نویسندگان
چکیده
Three-month-old infants were carried by their mothers in a soft infant carrier designed for infants being faced inward or faced outward. A within subjects comparison of these two positions revealed that when the infants were carried facing-in, they spent significantly more time sleeping and were rarely actively awake and looking at the environment. In contrast, the infants were more active in the facing-out position inclUding more time moving their arms, head turning, kicking and looking at their environment.
منابع مشابه
Interactions among paternal behavior, steroid hormones, and parental experience in male marmosets (Callithrix kuhlii).
Male black tufted-ear marmosets (Callithrix kuhlii) contribute to the rearing of their offspring. Here we evaluated predictions of hypotheses suggesting that (1) T and E2 influence infant-care behavior in male marmosets, (2) levels of T and E2 are modulated by paternal experience, and (3) paternal behavior and levels of T and E2 in male marmosets covary with stress. We observed the behavior of ...
متن کاملVibration Characteristics of Functionally Graded Micro-Beam Carrying an Attached Mass
In this article, in reference to the modified couple stress theory and Euler-Bernoulli beam theory, the free lateral vibration response of a micro-beam carrying a moveable attached mass is investigated. This is a decent model for biological and biomedical applications beneficial to the early-stage diagnosis of diseases and malfunctions of human body organs and enzymes. The micro-cantilever beam...
متن کاملThe energetic costs of load-carrying and the evolution of bipedalism.
The evolution of habitual bipedalism is still a fundamental yet unsolved question for paleoanthropologists, and carrying is popular as an explanation for both the early adoption of upright walking and as a positive selection pressure once a terrestrial lifestyle had been adopted. However, to support or reject any hypothesis that suggests carrying efficiency was an important selective pressure, ...
متن کاملVariation at the mu-opioid receptor gene (OPRM1) influences attachment behavior in infant primates.
In a variety of species, development of attachment to a caregiver is crucial for infant survival and partly mediated by the endogenous opioids. Functional mu-opioid receptor gene polymorphisms are present in humans (OPRM1 A118G) and rhesus macaques (OPRM1 C77G). We hypothesized that rhesus infants carrying a gain-of-function OPRM1 77G allele would experience increased reward during maternal con...
متن کاملCosts and Benefits of Cooperative Infant Care in Wild Golden Lion Tamarins (leontopithecus Rosalia)
Title of Document: COSTS AND BENEFITS OF COOPERATIVE INFANT CARE IN WILD GOLDEN LION TAMARINS (LEONTOPITHECUS ROSALIA). Jennifer Marie Siani, Doctor of Philosophy, 2009 Directed By: Dr. James M. Dietz, Professor Behavior, Ecology, Evolution, & Systematics In cooperative breeding species, nonbreeding individuals typically delay dispersal, forego reproduction and provide care to infants that are ...
متن کامل