Article Version of Record

Differential influences of unilateral tDCS over the intraparietal cortex on numerical cognition.

Author(s) / Creator(s)

Artemenko, C.
Moeller, K.
Huber, S.
Klein, E.

Other kind(s) of contributor

Leibniz-Institut für Wissensmedien

Abstract / Description

Recent neuro-imaging research identified the bilateral intraparietal sulcus (IPS) to be a key area associated with number processing. However, causal structure-function relationships are hard to evaluate from neuro-imaging techniques such as fMRI. Nevertheless, brain stimulation methods like transcranial direct current stimulation (tDCS) allow for investigating the functional relevance of the IPS for number processing. Following up on a study using bilateral bi-cephalic tDCS over the IPS, the current study aimed at evaluating the differential lateralized functional contributions of the left and right IPS to number processing using unilateral bi-cephalic tDCS over either the left or right IPS. Results indicated a right lateralization for the processing of the place-value structure of the Arabic number system. Importantly, the processing of number magnitude information was not affected by unilateral IPS corroborating the assumption that number magnitude is processed in the bilateral IPS. Taken together, these data suggest that even though number magnitude is represented bilaterally, the left and right IPS seem to contribute differentially to numerical cognition with respect to the processing of specific other aspects of numerical information.

Persistent Identifier

Date of first publication

2015

Journal title

Frontiers in Human Neuroscience

Volume

9:110

Publication status

publishedVersion

Review status

peerReviewed

Is version of

10.3389/fnhum.2015.00110

Citation

  • Author(s) / Creator(s)
    Artemenko, C.
  • Author(s) / Creator(s)
    Moeller, K.
  • Author(s) / Creator(s)
    Huber, S.
  • Author(s) / Creator(s)
    Klein, E.
  • Other kind(s) of contributor
    Leibniz-Institut für Wissensmedien
  • PsychArchives acquisition timestamp
    2017-08-28T11:11:00Z
  • Made available on
    2017-08-28T11:11:00Z
  • Date of first publication
    2015
  • Abstract / Description
    Recent neuro-imaging research identified the bilateral intraparietal sulcus (IPS) to be a key area associated with number processing. However, causal structure-function relationships are hard to evaluate from neuro-imaging techniques such as fMRI. Nevertheless, brain stimulation methods like transcranial direct current stimulation (tDCS) allow for investigating the functional relevance of the IPS for number processing. Following up on a study using bilateral bi-cephalic tDCS over the IPS, the current study aimed at evaluating the differential lateralized functional contributions of the left and right IPS to number processing using unilateral bi-cephalic tDCS over either the left or right IPS. Results indicated a right lateralization for the processing of the place-value structure of the Arabic number system. Importantly, the processing of number magnitude information was not affected by unilateral IPS corroborating the assumption that number magnitude is processed in the bilateral IPS. Taken together, these data suggest that even though number magnitude is represented bilaterally, the left and right IPS seem to contribute differentially to numerical cognition with respect to the processing of specific other aspects of numerical information.
  • Publication status
    publishedVersion
  • Review status
    peerReviewed
  • Persistent Identifier
    https://hdl.handle.net/20.500.12034/477
  • Persistent Identifier
    https://doi.org/10.23668/psycharchives.685
  • Is version of
    10.3389/fnhum.2015.00110
  • Title
    Differential influences of unilateral tDCS over the intraparietal cortex on numerical cognition.
  • DRO type
    article
  • Leibniz institute name(s) / abbreviation(s)
    IWM
  • Leibniz subject classification
    Psychologie
  • Journal title
    Frontiers in Human Neuroscience
  • Volume
    9:110
  • Visible tag(s)
    Version of Record