title: Tactile remapping: from coordinate transformation to integration in sensorimotor processing.
abstract: Tactile localization entails the transformation of the initial skin-based location into an external reference frame that accounts for body posture and subsequent flexible integration of these two reference frames. The mechanisms underlying this tactile remapping are not well understood. Notably, there is a gap between the principles uncovered by psychophysical research and the mechanistic explanations offered by neuroscientific studies. We suggest that spatial localization is best viewed as a process of integrating multiple concurrently active spatial representations rather than a sequential transformation process. To achieve integration, large-scale interactions are required that link these different representations. Coordinated oscillatory activity may be a suitable mechanism that allows parallel representation of multiple spatial formats and the formation of an integrated location estimate.
authors.affiliation: Biological Psychology and Neuropsychology, Faculty of Psychology and Human Movement Science, University of Hamburg, Hamburg, Germany. Electronic address: tobias.heed@uni-hamburg.de.
authors.forename: Tobias
authors.initials: T
authors.lastname: Heed
authors.affiliation: Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
authors.forename: Verena N
authors.initials: VN
authors.lastname: Buchholz
authors.affiliation: Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
authors.forename: Andreas K
authors.initials: AK
authors.lastname: Engel
authors.affiliation: Biological Psychology and Neuropsychology, Faculty of Psychology and Human Movement Science, University of Hamburg, Hamburg, Germany.
authors.forename: Brigitte
authors.initials: B
authors.lastname: Röder
mesh_terms: D001931:Brain Mapping; D006801:Humans; D009434:Neural Pathways / Q000502:physiology*; D010296:Parietal Lobe / Q000502:physiology*; D010812:Physical Stimulation; D011597:Psychomotor Performance / Q000502:physiology*; D012867:Skin / Q000294:innervation; D014110:Touch / Q000502:physiology*
keywords: oscillatory activity; parietal cortex; reference frame; tactile localization; tactile remapping; top-down control