6 and 9 months of age
18 months to 3 years of age
6 months and 3 years of age
2 to 4 weeks of age
Toxic agents during the fertilization and implantation period (conception to 17 days) typically results in death
Functional and morphological deficits
Genie was able to develop a wide vocabulary but commensurate with mental age (5 years) but was unable to learn the rules of grammar. The fact that some learning still occurred later in life lends support to there being a "sensitive" period. If it were "
There is a critical period for language development.
There is a sensitive period for language development.
The Kennard Principle
The development of lateralization is complete by the age of 5 years.
Vicarious functioning was proposed by Munk (1981) and explained that functions lost after an injury are taken over by other areas of the brain whose functions may be sacrificed to fulfill the role of the damaged area
Restoration of function
In later studies, Kennard 1942 realized that the lesioned infant monkeys of her earlier experiments were demonstrating learning deficits that were not apparent
Only ipsilateral areas take over function after unilateral lesions in the prefrontal cortex
Recovery of function is dependant on neural and environmental factors
Other things being equal, the younger the lesioned organism, the better the outcome
Early insults may result in delayed evidence of learnign deficits
選擇要在Apple App Store上查看的Topgrade應用程序。