Ardid and Wang propose a model for task switching in which a weak rule signal provides a small bias that is dramatically amplified by reverberating dynamics in neural circuits. This leads to complete reconfiguration of sensory to motor mapping.  It seems to explain many observations in the extant literature.  Rules signals are often weak (but ubiquitous in frontal cortex), yet somehow manage to gain control over behavior

About the Author

The Miller Lab uses experimental and theoretical approaches to study the neural basis of the high-level cognitive functions that underlie complex goal-directed behavior.