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Klein E, Suchan J, Moeller K, et al. Considering structural connectivity in the triple code model of numerical cognition: differential connectivity for magnitude processing and arithmetic facts. Brain Struct Funct. 2014;221(2):979-95doi: 10.1007/s00429-014-0951-1.
Klein, E., Suchan, J., Moeller, K., Karnath, H. O., Knops, A., Wood, G., Nuerk, H. C., & Willmes, K. (2016). Considering structural connectivity in the triple code model of numerical cognition: differential connectivity for magnitude processing and arithmetic facts. Brain structure & function, 221(2), 979-95. https://doi.org/10.1007/s00429-014-0951-1
Klein, Elise, et al. "Considering structural connectivity in the triple code model of numerical cognition: differential connectivity for magnitude processing and arithmetic facts." Brain structure & function vol. 221,2 (2016): 979-95. doi: https://doi.org/10.1007/s00429-014-0951-1
Klein E, Suchan J, Moeller K, Karnath HO, Knops A, Wood G, Nuerk HC, Willmes K. Considering structural connectivity in the triple code model of numerical cognition: differential connectivity for magnitude processing and arithmetic facts. Brain Struct Funct. 2016 Mar;221(2):979-95. doi: 10.1007/s00429-014-0951-1. Epub 2014 Nov 29. PMID: 25432772.
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Brain Struct Funct. 2016 Mar;221(2):979-95. doi: 10.1007/s00429-014-0951-1. Epub 2014 Nov 29.

Considering structural connectivity in the triple code model of numerical cognition: differential connectivity for magnitude processing and arithmetic facts.

Brain structure & function

Elise Klein, Julia Suchan, Korbinian Moeller, Hans-Otto Karnath, André Knops, Guilherme Wood, Hans-Christoph Nuerk, Klaus Willmes

Affiliations

  1. Knowledge Media Research Center, Neurocognition Lab, IWM-KMRC, Schleichstr. 6, 72076, Tübingen, Germany. [email protected].
  2. Department of Neurology, Section Neuropsychology, University Hospital, RWTH Aachen University, Aachen, Germany. [email protected].
  3. Division of Neuropsychology, Center of Neurology, Hertie-Institute of Clinical Brain Research, University of Tuebingen, Tübingen, Germany.
  4. Knowledge Media Research Center, Neurocognition Lab, IWM-KMRC, Schleichstr. 6, 72076, Tübingen, Germany.
  5. Institute of Psychology, Eberhard Karls University, Tübingen, Germany.
  6. Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany.
  7. Institute of Psychology, Karl-Franzens-University of Graz, Graz, Austria.
  8. Department of Neurology, Section Neuropsychology, University Hospital, RWTH Aachen University, Aachen, Germany.

PMID: 25432772 DOI: 10.1007/s00429-014-0951-1

Abstract

The current study provides a generalizable account of the anatomo-functional associations as well as the connectivity of representational codes underlying numerical processing as suggested by the triple code model (TCM) of numerical cognition. By evaluating the neural networks subserving numerical cognition in two specific and substantially different numerical tasks with regard to both grey matter localizations as well as white matter tracts we (1) considered the possibility of additional memory-related cortex areas crucial for arithmetic fact retrieval (e.g., the hippocampus); (2) specified the functional involvement of prefrontal areas in number magnitude processing, and, finally; (3) identified the connections between these anatomo-functional instantiations of the representations involved in number magnitude processing and arithmetic fact retrieval employing probabilistic fiber tracking. The resulting amendments to the TCM are summarized in a schematic update, and ideas concerning the possible functional interplay between number magnitude processing and arithmetic fact retrieval are discussed.

Keywords: Diffusion tensor imaging; Numerical cognition; Probabilistic fiber tracking; Triple code model; fMRI

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