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Referee Comments: Referee 2

Posted by PLOS_ONE_Group on 02 Sep 2007 at 22:20 GMT

Reviewer 2's Review

“The authors demonstrated that the direction and speed of traveling waves (often perceived in binocular rivalry) were dependent on the direction and speed of the pattern that was dynamically emerging from suppression. The authors provided a computational model to explain the behavioral results in terms of the velocity- and orientation-dependent excitatory interactions (intra-ocular) and inhibitory interactions (inter-ocular).

The writing is generally clear and the results are clean. Some aspects of the model need to be clarified, however. For example, the authors found no consistent effect of motion direction when the speed of the carrier and mask patterns were different. This suggests that the relevant neural interactions occur only among neurons that are tuned to the same speed. I am not sure where in the model this speed-specificity of interactions is implemented. Motion signals diminish when the angle of the wave elements is changed from radial to collinear. Where in the model is this orientation-dependent effect of motion implemented? What are EM and EC?”

N.B. These are the general comments made by the reviewer when reviewing the originally submitted version of this paper.