Biological Psychology and Neuropsychology, Faculty of Psychology and Human Movement Science, University of Hamburg, Hamburg, Germany.
Department of Neurophysiology and Pathophysiology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Trends Cogn Sci. 2015 May;19(5):251-8. doi: 10.1016/j.tics.2015.03.001. Epub 2015 Apr 2.
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.
触觉定位需要将初始的基于皮肤的位置转换为外部参考系，以考虑身体姿势，然后灵活地整合这两个参考系。这种触觉重映射的机制尚不清楚。值得注意的是，心理物理学研究揭示的原理与神经科学研究提供的机制解释之间存在差距。我们认为，空间定位最好被视为整合多个同时活跃的空间表示的过程，而不是顺序转换过程。为了实现整合，需要进行大规模的相互作用，将这些不同的表示联系起来。协调的振荡活动可能是一种合适的机制，允许多个空间格式的并行表示和形成综合的位置估计。
