In studies of speech perception, temporal integration refers to how chunks of information arriving at the ears at different times are linked together by the listener in mapping speech sounds onto meaning. Classical models focused on the perceptual grouping of acoustic cues contained in short stretches of time in the identification of phonetic segments. In recent years, however, a different view has emerged as speech perception has come to be studied within a broader context and from a multidisciplinary perspective. Thus, the relevance of non-local, long-domain cues to phonological contrasts has been demonstrated. The status of the phonetic segment as a basic perceptual unit has been debated. And the primacy of the auditory channel over the visual channel has been questioned. These issues have profound implications for how temporal integration is defined and accounted for.