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Published online by Cambridge University Press: 30 October 2001
Stoffregen & Bardy's proposal that perceptual systems can useinformation defined across two or more sensory domains is valuableand urgent in its own right. However, their claim of exclusivevalidity for global-array information is superfluous and perpetuatedfor incorrect reasons. The seeming ambiguities of individual arraysemanate from failures to consider relevant ecological constraintsand higher-order variables.