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All › Mathematical Concepts

Mathematical Concepts (9)

Articles on Mathematical Concepts

  1. A mathematical model of weight change with adaptation.
    Diana M DM Thomas, Ashley A Ciesla, ... Corby K CK Martin

    Math Biosci Eng 6(4):873-87 (2009) PMID 19835433

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  2. The mental number line modulates visual cortical excitability
    Zaira Cattaneo, Juha Silvanto, ... Alvaro Pascual-Leone

    Neurosci Lett 462(3):4 (2009) PMID 19616067

    We used transcranial magnetic stimulation (TMS) to investigate whether this attentional modulation influences excitability of the early visual cortex. By using the phosphene threshold as a measure of visual cortical excitability, we show (in 10 subjects) that number priming modulates excitability of...
  3. Nonabstract representation for number - evidence from event-related potentials.
    Hui Chen, Zaifeng Gao, ... Mowei Shen

    Neuroreport 20(14):1240-4 (2009) PMID 19623092

    We investigated whether the mental representation of numbers was abstract amodal or modality-dependent by taking N270 as an index, the amplitude that represents the conflict between internal representation and perceptual input. Participants were instructed to justify whether the magnitude of the sec...
  4. Animals by the numbers.
    Michael M Tennesen

    Sci Am 301(3):23-4 (2009) PMID 19708519

  5. Neural correlates of arithmetic calculation strategies.
    Miriam M Rosenberg-Lee, Marsha C MC Lovett, and John R JR Anderson

    Cogn Affect Behav Neurosci 9(3):270-85 (2009) PMID 19679763

    We examined cortical activation as a function of two different calculation strategies for mentally solving multidigit multiplication problems. The school strategy, equivalent to long multiplication, involves working from right to left. The expert strategy, used by "lightning" mental calculators (Sta...
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  6. Affine extensions of the icosahedral group with applications to the three-dimensional organisation of simple viruses.
    T Keef and R Twarock

    J Math Biol 59(3):287-313 (2009) PMID 18979101

    We develop here a mathematical framework based on affine extensions of the icosahedral group that allows us to describe those aspects of the three-dimensional structure of simple viruses. This approach complements Caspar-Klug theory and provides details on virus structure that have not been accessib...
  7. Origin of the Mind
    Marc Hauser

    Sci Am 301(3):44-51 (2009) PMID 19708527

  8. Numerical representation in the parietal lobes: abstract or not abstract?
    Roi Cohen Kadosh and Vincent Walsh

    Behav Brain Sci 32(3-4):313-28; discussion 328-73 (2009) PMID 19712504

    We discuss and challenge the claim that numerical representation is abstract. We discuss the principles of cortical organisation with special reference to number and also discuss methodological and theoretical limitations that apply to numerical cognition and also to the field of cognitive neuroscie...
  9. Sympathetic neural responses to mental stress during acute simulated microgravity.
    J J Durocher, C E Schwartz, and J R Carter

    J Appl Physiol 107(2):518-22 (2009) PMID 19541737

  10. Gender differences in the functional and structural neuroanatomy of mathematical cognition
    Katherine Keller and Vinod Menon

    Neuroimage 47(1):11 (2009) PMID 19376239 PMCID PMC2888277

    We used fMRI to compare brain responses in 25 females and 24 males during a mental arithmetic task involving 3-operand addition and subtraction. We also used voxel-based morphometry (VBM) to examine gender differences in brain structure. Although females and males did not differ in accuracy or respo...
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