The human brain maintains contradictory and redundant auditory sensory predictions.

ABSTRACT: Computational and experimental research has revealed that auditory sensory predictions are derived from regularities of the current environment by using internal generative models. However, so far, what has not been addressed is how the auditory system handles situations giving rise to redundant or even contradictory predictions derived from different sources of information. To this end, we measured error signals in the event-related brain potentials (ERPs) in response to violations of auditory predictions. Sounds could be predicted on the basis of overall probability, i.e., one sound was presented frequently and another sound rarely. Furthermore, each sound was predicted by an informative visual cue. Participants' task was to use the cue and to discriminate the two sounds as fast as possi

SUBMITTER: Pieszek M 

PROVIDER: S-EPMC3538730 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature