The functional anatomy of the MMN: A DCM study of the roving paradigm

By Marta Isabel Garrido, Karl J. Friston, Stefan J. Kiebel, Klaas E. Stephan, Torsten Baldeweg, James M. Kilner. NeuroImage, 2008

447 citations recorded by the source corpus.

Using dynamic causal modelling (DCM), we have presented provisional evidence to suggest: (i) the mismatch negativity (MMN) is generated by self-organised interactions within a hierarchy of cortical sources (Garrido et al., 2007) and (ii) the MMN rests on plastic change in both extrinsic (between-source) and intrinsic (within source) connections (Garrido et al., under review). In this work we re-visit these two key issues in the context of the roving paradigm. Critically, this paradigm allows us to discount any differential response to differences in the stimuli per se, because the standards and oddballs are physically identical. We were able to confirm both the hierarchical nature of the MMN generation and the conjoint role of changes in extrinsic and intrinsic connections. These findings are consistent with a predictive coding account of repetition-suppression and the MMN, which gracefully accommodates two important mechanistic perspectives; the model adjustment hypothesis (Winkler et al., 1996; Näätänen and Winkler, 1999; Sussman and Winkler, 2001) and the adaptation hypothesis (May et al., 1999; and Jääskeläinen et al., 2004).

Subfields: Cognitive Neuroscience, Experimental and Cognitive Psychology

View Paper: https://www.semanticscholar.org/paper/5f449ebb98d219ecbbad39f5079111f4f78b7369

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In Cognitive Neuroscience

  1. Karl J. Friston
  2. Jean Daunizeau
  3. Klaas E. Stephan
  4. W. D. Penny
  5. Stefan J. Kiebel
  6. James M. Kilner
  7. Rosalyn J. Moran
  8. Marta Isabel Garrido

In Experimental and Cognitive Psychology

  1. Karl J. Friston
  2. Micah M. Murray
  3. Marta Isabel Garrido
  4. Richard N. Henson
  5. C. Michel
  6. Antonia Thelen
  7. Pawel J. Matusz

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