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Chemical Senses Advance Access published online on June 22, 2006
Chemical Senses, doi:10.1093/chemse/bjl007
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© The Author 2006. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permissions@oxfordjournals.org
Accepted June 1, 2006

Article

Cross-Modal Interactions between Olfaction and Vision When Grasping

Umberto Castiello 1 *, Gesualdo M. Zucco 2, Valentina Parma 2, Caterina Ansuini 2, and Roberto Tirindelli 3

1 Department of General Psychology, University of Padua, Via Venezia 8, 35131 Padua, Italy; Department of Psychology, Royal Holloway, University of London, London, UK
2 Department of General Psychology, University of Padua, Via Venezia 8, 35131 Padua, Italy
3 Department of Neuroscience, University of Parma, Parma, Italy

* To whom correspondence should be addressed.
Umberto Castiello, E-mail: umberto.castiello{at}unipd.it


  Abstract

This study used kinematics to investigate the integration between vision and olfaction during grasping movements. Participants were requested to smell an odorant and then grasp an object presented in central vision. The results indicate that if the target was small (e.g., a strawberry), the time and amplitude of maximum hand aperture were later and greater, respectively, when the odor evoked a larger object (e.g., an orange) than when the odor evoked an object of a similar size as the target or no odor was presented. Conversely, the time and amplitude of maximum hand aperture were earlier and reduced, respectively, when the target was large (e.g., a peach) and the odor evoked a smaller sized object (e.g., an almond) than when the odor evoked an object of a similar size as the target or no odor was presented. Taken together, these results support the evidence of cross-modal links between olfaction and vision and extend this notion to goal-directed actions.

Keywords: cross-modal interactions; kinematics; olfaction; reach-to-grasp; vision.
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F. Tubaldi, C. Ansuini, M. L. Dematte, R. Tirindelli, and U. Castiello
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[Abstract] [Full Text] [PDF]


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