Our study Comparing reading processes on e-ink displays and print is now published in the Elsevier journal Displays. In the study we analyze and compare reading behavior on e-reader displays and on printed paper.
The results suggest that reading behavior on e-readers is indeed very similar to reading behavior on print. Participants shared similar proportions of regressive saccades while reading on e-readers and print. Significant differences in fixation duration suggest that e-readers, in some situations, may even provide better legibility.
Link to the article: http://www.sciencedirect.com/science/article/pii/S0141938211000497
Citation: Siegenthaler, E., Wurtz, P, Bergamin P. & Groner, R. (2011). Comparing reading processes on e-ink displays and print. Displays, 32 (5), 268-273. http://dx.doi.org/10.1016/j.displa.2011.05.005.