Intracranial Mapping of Response Latencies and Task Effects for Spoken Syllable Processing in the Human Brain.

We leverage direct, intracranial electroencephalography recordings to document speech information flow through diverse sites in the human forebrain, including areas where reported electrode coverage has historically been limited. Our data are consistent with hierarchical processing of speech at a macro level and parallel streams of information flow in temporal and parietal regions. They also reveal regions in the auditory pathway where stimulus-faithful speech codes are transformed to behaviorally relevant representations of speech content.