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...

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...

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...

Maximum intensity projection of a tomographic reconstruction of a selectively stained spiny dendrite from a striatal medium spiny neuron from the neostriatum of a wildtype mouse. This reconstructed im...

Colorized transmission electron micrograph of a platinum replica showing the cytoskeletal organization of stubby dendritic spines in extracted hippocampal neurons after 14 DIV. Unlabeled inset shows t...

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...

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...

This is Video S2 which corresponds to still images in top row of Figure 2D. It shows the spine dynamics of control neurons. Time-lapse confocal imaging was performed on DIV14 hippocampal neurons co-ex...

This is Video S3,which corresponds to still images in bottom row of Fig. 2D. It shows that knocking down levels of Myosin II B (MIIB) increases spine dynamics. Spines from MIIB knockdown neurons exten...

A single computed slice from a tomographic reconstruction of a lucifer yellow injected spiny dendrite from a striatal medium spiny neuron from the neostriatum of a dopamine transporter knock out mouse...