Cascade and no-repetition rules are comparable controls for the auditory frequency mismatch negativity in oddball tasks.

ABSTRACT: The mismatch negativity (MMN) has been widely studied with oddball tasks to index processing of unexpected auditory change. The MMN is computed as the difference of deviant minus standard and is used to capture the pattern violation by the deviant. However, this oddball MMN is confounded because the deviant differs physically from the standard and is presented less often. To improve measurement, the same tone as the deviant is presented in a separate condition. This control tone is equiprobable with other tones and is used to compute a corrected MMN (deviant minus control). Typically, the tones are in random order except that consecutive tones are not identical (no-repetition rule). In contrast, a recent study on frequency MMN presented tones in a regular up-and-down sequence (cascade rule

SUBMITTER: Wiens S 

PROVIDER: S-EPMC7379195 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature