Platinum replica illustrating the cytoskeletal organization of dendritic spines from extracted 14 DIV neurons. This image shows branched actin filaments (cyan) in the neck of respective spines. This i...

Platinum replica illustrating the cytoskeletal organization of dendritic spines from extracted 14 DIV neurons. Thin spines associate with dendrites at the base (bottom) and with axons by the head (top...

Platinum replica illustrating the cytoskeletal organization of dendritic spines from extracted 14 DIV neurons. Thin spines associate with dendrites at the base (bottom) and with axons by the head (top...

Tomographic reconstruction of a dendrite and associated dendritic spines from a medium spiny neuron from the mouse nucleus accumens. This image is a maximum intensity projection of a segment of dendri...

Single computed slice through a tomographic reconstruction of a selectively-stained spiny dendrite. This medium spiny neuron was contained in a thick section from the neostriatum of a dopamine transp...

Tomographic reconstruction of dendritic spines on a dendrite from a medium spiny neuron from the rat neostriatum. This image is a maximum intensity projection of a segment of dendrite in a 4 um sect...

Tomographic reconstruction of a portion of medium spiny neuron from the neostriatum of a Sprague Dawley adult rat, in a 4 um thick section. This data set is poorly aligned due to a lack of adequate fi...

Platinum replica depicting the cytoskeletal organization of dendritic spines in extracted 14 DIV neurons. Mushroom spines associate with dendrites at the base (bottom) and with axons by the head (top)...

Platinum replica depicting the cytoskeletal organization of dendritic spines in extracted 14 DIV neurons. This image shows the interaction of putative PSD from the spine head with axonal intermediate ...

This is Video S1 and it corresponds to Figure 2A. It shows that local blebbistatin micropipetting, but not DMSO, increases spine formation and extension (arrowheads). Equal volumes of blebbistatin and...