Multisensory visual–tactile object related network in humans: insights gained using a novel crossmodal adaptation approach
Open Access
- 4 August 2009
- journal article
- research article
- Published by Springer Science and Business Media LLC in Experimental Brain Research
- Vol. 198 (2-3), 165-182
- https://doi.org/10.1007/s00221-009-1949-4
Abstract
Neuroimaging techniques have provided ample evidence for multisensory integration in humans. However, it is not clear whether this integration occurs at the neuronal level or whether it reflects areal convergence without such integration. To examine this issue as regards visuo-tactile object integration we used the repetition suppression effect, also known as the fMRI-based adaptation paradigm (fMR-A). Under some assumptions, fMR-A can tag specific neuronal populations within an area and investigate their characteristics. This technique has been used extensively in unisensory studies. Here we applied it for the first time to study multisensory integration and identified a network of occipital (LOtv and calcarine sulcus), parietal (aIPS), and prefrontal (precentral sulcus and the insula) areas all showing a clear crossmodal repetition suppression effect. These results provide a crucial first insight into the neuronal basis of visuo-haptic integration of objects in humans and highlight the power of using fMR-A to study multisensory integration using non-invasinve neuroimaging techniques.This publication has 90 references indexed in Scilit:
- Anticipatory haemodynamic signals in sensory cortex not predicted by local neuronal activityNature, 2009
- Cortical Plasticity of Audio-Visual Object RepresentationsCerebral Cortex, 2008
- Rapid and Reversible Recruitment of Early Visual Cortex for TouchPLOS ONE, 2008
- Effective connectivity during haptic perception: A study using Granger causality analysis of functional magnetic resonance imaging dataNeuroImage, 2008
- Multisensory Interplay Reveals Crossmodal Influences on ‘Sensory-Specific’ Brain Regions, Neural Responses, and JudgmentsNeuron, 2008
- Selective visuo‐haptic processing of shape and textureHuman Brain Mapping, 2007
- Visual Neuroscience: Face-Encoding Mechanisms Revealed by AdaptationCurrent Biology, 2007
- Representation of Perceived Object Shape by the Human Lateral Occipital ComplexScience, 2001
- Visual word stem completion priming within and across modalitiesNeuroReport, 1999
- Coding of modified body schema during tool use by macaque postcentral neuronesNeuroReport, 1996