Researchers report adult neurogenesis not only helps increase the number of cells in a neural network, it also promotes plasticity in the existing network. Additionally, they have identified the role the Bax gene plays in synaptic pruning.
A new study reports researchers have discovered a previously unknown relationship between brain function and structure. The findings could help explain how communication breaks down in diseases such as multiple sclerosis and schizophrenia.
According to researchers, a mutation in a gene associated with brain development may dispose people to various psychiatric illnesses as it reduces synapse numbers. Lithium may help to restore some of the synapses.