Two-Photon Correlation Spectroscopy in Single Dendritic Spines Reveals Fast Actin Filament Reorganization during Activity-Dependent Growth.

In summary, all spines that displayed significant morphological changes upon TEA treatment ( Fig 2A ) also displayed a highly significant increase in dynamics of the short as well as the long actin filaments, τ 1 and τ 2 ( Fig 2C and 2D , p = 0,0078 and 0,0008, respectively), and an increase in the calculated number of long filament, N 2 ( Fig 2F , p = 0,0014).

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