Figure 6.
Number of Nissl-stained mature neurons in layer III of area Er in unoperated control (black), neonatal hippocampal-lesioned (red) and adult hippocampal-lesioned (blue) monkeys. A. Total number of mature neurons. B. Number of small and large mature neurons, below and above the median soma size of controls (1,800 µm3). C. Distribution of mature neuron soma size (in cubic micrometers, µm3). Dotted lines represent the average soma size for each group (controls: 1,982 µm3; neonatal lesion: 1,673 µm3; adult lesion: 1,941 µm3).