Synchrony does not promote grouping in temporally structured displays.

It has been proposed that the human visual system can use temporal synchrony to bind image regions into unified objects, as proposed in some neural models. Here we present experimental results from a new dynamic stimulus suggesting that previous evidence for this hypothesis can be explained with the well-established mechanisms of early visual processing, thus obviating the need to posit new synchrony-sensitive grouping mechanisms (see also ref. 5 for a critique of the binding by neural synchrony hypothesis).