Last year Jonas Frisén of the Karolinska Institute in Stockholm, Sweden, and his colleagues found that neurogenesis occurs in the hippocampi of the human brain. These structures are crucial for memory formation
Now they have found more new brain cells in a second location – golf-ball-sized structures called the striata. These seem to be involved in many different functions, including in learning and memory. These particular aspects, related as they are to the hippocampi, lead Frisén to speculate that these new brain cells may also be involved with learning. “New neurons may convey some sort of plasticity,” he says, which might help people learn and adapt to new situations.
It is too early to know what these new brain cells are doing in the striata, but any evidence of neurogenesis in the human brain provides fresh hope for the development of treatments for neurodegenerative brain diseases.
SOURCE – New Scientist
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