Spine volume (μm3) | 0.10 (0.08) | 0.08 (0.08) | 0.10 (0.09) | 0.14 (0.08)* |
Spine surface area (μm2) | 1.18 (0.62) | 1.07 (0.67) | 1.31 (0.93) | 1.52 (0.76) |
Non-GABA synapse surface area (μm2) | 0.07 (0.05) | 0.05 (0.05) | 0.07 (0.06) | 0.08 (0.06) |
Spine surface area in contact with astrocyte (μm2) | 0.27 (0.39) | 0.29 (0.37) | 0.19 (0.30) | 0.38 (0.07) |
Percentage of spine surface area involved in: Non-GABA synapse | 5.86 (3.20) | 5.60 (3.89) | 5.80 (3.20) | 5.41 (3.22) |
Contact with astrocyte | 21.75 (8.68) | 27.02 (8.06) | 22.96 (7.41) | 25.27 (7.24) |
Surface area of GABA synapse on spines (μm2; number sampled in parentheses) | 0.04 (0.03) (5) | 0.03 (0.01) (8) | 0.04 (0.02) (4) | 0.03 (0.02) (7) |