How are synapses optimally strengthened or weakened to improve network performance? Roelfsema and Holtmaat provide an overview of factors that influence synaptic plasticity, particularly in deep, multilayered biological networks, and present a specific framework in which neuromodulators and feedback connections may interact to selectively potentiate synapses responsible for rewarded action.
- Pieter R. Roelfsema
- Anthony Holtmaat
