In each hippocampus’s CA3 area, humans have about 1.7 million nerve cells called pyramidal cells. This subregion is thought to be the most internally connected part of the brain in mammals.

This finding will be invaluable for developing better models for the processing going on in the hippocampus. More information ...

1 Neurons complete hippocampus loop There's a new, important function for a once-obscure cell population in the brain: CA2 pyramidal neurons, a subset of cells in the hippocampus, form a link between ...