A Window into the Heterogeneity of Human Cerebrospinal Fluid Aβ Peptides

Figure 1

Schematic representation of the ‘‘Push and Pull Control’’ of structural and functional plasticity of neuronal circuits and how this control is related to learning processes (plastic changes of the circuits) and maintenance of the memory traces (stability of the circuits). The possible actions of Aβ peptides as double-edged sword signals are indicated. Broken arrows indicate reduction or inhibition.