Figure 2. | Nanoconnectomic upper bound on the variability of synaptic plasticity

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Nanoconnectomic upper bound on the variability of synaptic plasticity

Figure 2.

Affiliation details

Howard Hughes Medical Institute, Salk Institute for Biological Studies, United States; Massachusetts Institute of Technology, United States; The University of Texas at Austin, United States; University of California, San Diego, United States
Figure 2.
Download figureOpen in new tabFigure 2. Presynaptic docked vesicle numbers are correlated with PSD areas, spine head volumes, and neck diameter, but not with neck length.

(A) All 31,377 presynaptic vesicles. (B) En face view of the 24 docked vesicles (gray spheres) viewed through an axon (green) onto the PSD (red) of example spine (yellow). (C) Number of docked vesicles is correlated strongly with both PSD area and (D) spine head volume, weakly with (E) neck diameter, but is not correlated with (F) spine neck length. Regression lines, SEM (from multiple tracers), and r2 are as in Figure 1 n = 236 complete axonal boutons, each associated with one of the 287 complete spines. One human tracer marked PSDs and vesicles, hence no SEM for these two metrics.

DOI: http://dx.doi.org/10.7554/eLife.10778.005