Reducing cognitive phenomena to neural activity is seen by
many as lacking in scientific utility. The conceptual chasm
between electrochemical activity and the act of making a
choice is too broad to span in a single step. Instead, we adopt
a multi-scale approach to cognitive neuroscience by
constructing a conceptual ladder that incrementally climbs
from neuronal spikes to cognitive processes with each step
offering theoretic reductions. Here we propose a sequence of
intermediate neurocomputational processes that are promising
for understanding an array of cognitive phenomena. We
illustrate this approach in the context of the dynamics of
choice. These dynamics emerge from serial evaluation
mediated by systems in frontal cortex and the basal ganglia.
The effect is to promote neural oscillations that provide a
substrate for communication through coherence. Both
empirical and simulation studies are described to support this
view of emergent behavior.