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For example, the critical period for the development of a human child's binocular vision is thought to be between three and eight months, with sensitivity to damage extending up to at least three years of age. Further critical periods have been identified for the development of hearing [4] and the vestibular system.
The theory has often been extended to a critical period for second-language acquisition (SLA). David Singleton states that in learning a second language, "younger = better in the long run", but points out that there are many exceptions, noting that five percent of adult bilinguals master a second language even though they begin learning it when they are well into adulthood—long after any ...
In psychology and ethology, imprinting is any kind of phase-sensitive learning (learning occurring at a particular age or a particular life stage) that is rapid and apparently independent of the consequences of behaviour. It was first used to describe situations in which an animal or person learns the characteristics of some stimulus, which is ...
One critical period is weeks 8-24 of gestation. Another sensitive period shortly after birth may exist with a peak in testosterone in male infants during postnatal months 1-5. [14] Auyeung et al. tested for an association between fetal and postnatal testosterone and autism in children. The results supported the idea that there is a critical ...
Critical windows in emergency medicine Illustration of a short gamma-ray burst, a transient astronomical event caused by a collapsing star. [1] A window of opportunity, also called a margin of opportunity or critical window, is a period of time during which some action can be taken that will achieve a desired outcome. Once this period is over ...
Some of the most pervading examples of this can be seen through the development of the visual cortex in addition to the acquisition of language as a result of developmental plasticity during the critical period. [8] [32] A lesser known example, however, remains the critical development of respiratory control during developmental periods. At ...
Nearly half of all women have "dense breasts"—yet countless don't find out until later in life. Dense breasts have more fibrous and glandular tissue relative to fat tissue in the breast. Because ...
Sensitive periods [ edit ] Although the ocular dominance columns are formed before birth, there is a period after birth—formerly called a " critical period " and now called a " sensitive period "—when the ocular dominance columns may be modified by activity dependent plasticity .