Hippocampal volume predicts fluid intelligence in musically trained people

Authors

  • Mathias S. Oechslin,

    Corresponding author
    1. Faculty of Psychology and Educational Sciences, University of Geneva, Switzerland
    2. International Normal Aging and Plasticity Center (INAPIC), University of Zurich, Zurich, Switzerland
    • Geneva Neuroscience Center, University of Geneva, Switzerland
    Search for more papers by this author
  • Céline Descloux,

    1. Department of Cell Biology and Morphology, University of Lausanne, Lausanne, Switzerland
    Search for more papers by this author
  • Alexandre Croquelois,

    1. Department of Cell Biology and Morphology, University of Lausanne, Lausanne, Switzerland
    Search for more papers by this author
  • Julien Chanal,

    1. Faculty of Psychology and Educational Sciences, University of Geneva, Switzerland
    Search for more papers by this author
  • Dimitri Van De Ville,

    1. Geneva Neuroscience Center, University of Geneva, Switzerland
    2. Department of Radiology and Medical Informatics, Hôpitaux Universitaires de Genève, Switzerland
    3. Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
    Search for more papers by this author
  • François Lazeyras,

    1. Department of Radiology and Medical Informatics, Hôpitaux Universitaires de Genève, Switzerland
    Search for more papers by this author
  • Clara E. James

    1. Geneva Neuroscience Center, University of Geneva, Switzerland
    2. Faculty of Psychology and Educational Sciences, University of Geneva, Switzerland
    3. School of Health Geneva, University of Applied Sciences Western Switzerland, CH-1206 Geneva, Switzerland
    Search for more papers by this author

Correspondence to: Mathias S. Oechslin, International Normal Aging and Plasticity Imaging Center (INAPIC), University of Zurich, Binzmühlestrasse 14/25, 8050 Zurich, Switzerland. E-mail: mathias.oechslin@uzh.ch

ABSTRACT

Recently, age-related hippocampal (HP) volume loss could be associated with a decrease in general fluid intelligence (gF). In the present study we investigated whether and how extensive musical training modulates human HP volume and gF performance. Previously, some studies demonstrated positive effects of musical training on higher cognitive functions such as learning and memory, associated with neural adaptations beyond the auditory domain. In order to detect possible associations between musical training and gF, we bilaterally segmented the HP formation and assessed the individual gF performance of people with different levels of musical expertise. Multiple regression analyses revealed that HP volume predicts gF in musicians but not in nonmusicians; in particular, bilaterally enhanced HP volume is associated with increased gF exclusively in musically trained people (amateurs and experts). This result suggests that musical training facilitates the recruitment of cognitive resources, which are essential for gF and linked to HP functioning. Musical training, even at a moderate level of intensity, can thus be considered as a potential strategy to decelerate age-related effects of cognitive decline. © 2013 Wiley Periodicals, Inc.

Ancillary