Speech Sound Discrimination of Aphasics when Intersound Interval is Varied

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Abstract
Twenty-four aphasics and 24 age-and-sex matched brain-damaged, but nonaphasic, comparison subjects were assessed in terms of their abilities to discriminate (“same” versus “different”) between 25 syllable pairs separated by two different time intervals. Aphasics made significantly more errors than the comparison subjects when the silent period between syllables was short rather than long. In addition, this performance was demonstrated to be related to their general auditory comprehension ability, but not to auditory recognition or auditory retention.

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