Table 1.

Stability of spines in hippocampal neurons

Experiment Spines (total) Stable spines (%) New spines (%) Lost spines (%) n
Control (4 hr apart)* 1286 1268 (98.6) 4 (0.3) 15 (1.1) 4
Pilocarpine (2 hr apart)* 680 667 (98.1) 1 (0.1) 12 (1.8) 2
Bicuculline (5 hr apart)* 412 392 (95.1) 0.0 20 (4.9) 2
  • * For detailed description of the manipulations and imaging intervals, see Materials and Methods.