Musical syntax: Difference between revisions

Revision as of 07:54, 23 January 2014

Revision as of 08:08, 23 January 2014

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=====Differences – neural sources=====

Differences between the ERAN and the MMN also exist in the [[neural sources]] for the main contributions to the ERPs. The sources for the ERAN are located in the [[pars opercularis]] of the [[inferior fronto-lateral cortex]] (inferior [[Brodmann's area]] with contributions from the ventrolateral [[premotor cortex]] and the [[anterior superior temporal gyrus]], whereas the MMN receives its main contributions from and within the vicinity of the [[primary auditory cortex]] with additional sources in the [[frontal cortex|frontal cortical areas]]. Therefore the sources for the ERAN basically lie in the [[frontal cortex]] whereas the sources for the MMN are located in the [[temporal lobe]]. Other hints for this thesis emerge from the fact that under a [[propofol]] sedation which mainly has an impact on the frontal cortex, the ERAN is abolished while the MMN is only reduced. At last, the amplitude of the ERAN is reduced under ignore conditions whereas the MMN is largely unaffected by attentional modulations.

=====Processes to elicit the MMN or ERAN=====