Our new paper shows that neurons in the striatum, anterior cingulate and prefrontal cortex encode learning variables in the phase of firing. We outline a powerful regression based analysis pipeline that revealed spiking activity of neurons relative to the phase of beta oscillations carries significant learning information during reversal learning. The paper can be downloaded here. We first show that there is widespread beta-synchronization of spikes and LFP beta activity across the fronto-striatal network. For neurons signifiantly synchronizing to this network the phase at which they spike is signifisntly more infomrative that the phase-blind rate code.