Abstract is: In developmental psychology and developmental biology, a critical period is a maturational stage in the lifespan of an organism during which the nervous system is especially sensitive to certain environmental stimuli. If, for some reason, the organism does not receive the appropriate stimulus during this "critical period" to learn a given skill or trait, it may be difficult, ultimately less successful, or even impossible, to develop certain associated functions later in life. Functions that are indispensable to an organism's survival, such as vision, are particularly likely to develop during critical periods. "Critical period" also relates to the ability to acquire one's first language. Researchers found that people who passed the "critical period" would not acquire their first language fluently. Some researchers differentiate between 'strong critical periods' and 'weak critical periods' (a.k.a. 'sensitive' periods) — defining 'weak critical periods' / 'sensitive periods' as more extended periods, after which learning is still possible. Other researchers consider these the same phenomenon. 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 and the vestibular system.
| sensitive period | Q7451060 |
| window of opportunity | Q23900955 |
| P1269 | facet of | learning | Q133500 |
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| Arabic (ar / Q13955) | فترة حرجة | wikipedia |
| Kritická perioda | wikipedia | |
| Critical period | wikipedia | |
| Periodo crítico | wikipedia | |
| Persian (fa / Q9168) | دوره بحرانی | wikipedia |
| Herkkyyskausi | wikipedia | |
| Période critique | wikipedia | |
| תקופה קריטית | wikipedia | |
| Критичний період | wikipedia | |
| yue | 關鍵時期 | wikipedia |
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