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Neurogenesis

 

Explanations > Brains > Brain Chemistry > Neurogenesis

Description | Discussion | See also

 

Description

Neurogenesis is the creation of new neurons. It happens in particular in the hippocampus, which is implicated in stress and learning, as well as the neocortex and other areas, such as the dentate gyrus.

Neurogenesis is most active in young adults, but declines with age, particularly from middle age onwards.

Discussion

Long thought not to happen, the work of Elizabeth Gould and others has shown how brain cells actually can be replicated. The idea of neurogenesis goes back to the 19th century and the beginnings of neuroscience, but the idea was revoked by its originator in 1912. Later work in the 1960s and 1970s was something of a blind alley and research was quiescent until it was picked up again in the 1990s with the advent of improved research technology.

See also

 

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