Temporal perception encompasses several timing properties, including duration and temporal rate. If temporal perception were a unified mechanism, one might predict that differences in perception would apply across properties; thus, a stimulus that seems to persist for a longer duration might also seem to flicker more slowly. Moreover, effects that seem to be largely unisensory for duration might also be expected to be sensory specific for rate. However, a growing body of evidence suggests that

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... he mechanisms that underlie perception of temporal rate work quite differently from those that underlie duration perception, which has important implications for models of time perception.