Fig. 2.
Characteristics of three-dimensionally reconstructed simple synapses and synapses with perforated PSDs observed 30 min after LTP induction. A, Illustration of the spine head of and PSD of a reconstructed simple synapse (left) and a synapse with a perforated PSD (right). Scale bar, 0.5 μm.B, Values of spine head surface area (left), PSD surface area (middle), and the proportion of spines containing coated vesicles for simple synapses (Ctrl) and synapses with perforated PSDs (Perforated). Data are the mean ± SEM of measurements made on 31 reconstructed simple synapses and 42 synapses with perforated PSDs (*p < 0.01).