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. Author manuscript; available in PMC: 2013 Jul 1.
Published in final edited form as: Prog Brain Res. 2011;194:117–129. doi: 10.1016/B978-0-444-53815-4.00012-1

Fig. 2.

Fig. 2

Hierarchy or cascade of electrophysiological measures (event-related potential (ERP) components) to assess the functional integrity of the auditory pathways and cortices. Abbreviations in the figure include BERs for brainstem evoked responses; MMN for mismatch negativity responses; Cort. feat. discrim. for Cortical feature discrimination; and Lang./Sem. for Language and Semantic processing. Measures of other auditory ERP components could also be included for additional noninvasive assessment of the functional processing in the auditory pathways. The thick arrows coming in across the top of the figure reflect the potential influence of top-down factors, such as attention, on these various processing stages.