Does excessive memory load attenuate activation in the prefrontal cortex? Load-dependent processing in single and dual tasks: functional magnetic resonance imaging study. - Susanne M. Jaeggi; Ria Seewer; Arto C. Nirkko; Doris Eckstein; Gerhard Schroth; Rudolf Groner; Klemens Gutbrod (NeuroImage, 2003)

How Does Reward Expectation Influence Cognition in the Human Brain? - James B. Rowe; Doris Eckstein; Todd S. Braver; Adrian M. Owen (J. Cogn. Neurosci., 2008)