Perceptual latency priming and illusory linemotion: Facilitation by gradients of attention?

The phenomena of illusory line motion and perceptual latency priming are both assumed to reflect a facilitation of perceptual latency.The explanation of illusory line motion presupposes that attention is distributed in a gradient fashion whereas this is not a necessary part of the explanation of perceptual latency priming. Two experiments test whether an attentional gradient is present in perceptual latency priming. Evidence for a gradient was found within 2.5° of visual angle around the attended location, but not at a distance of 5° and more.