Sensory Information Processing Mechanisms of Touch Discrimination for Fine Surface Textures

本研究的目的是评价触觉对细微表面纹理的辨别能力，并探讨触觉辨别能力的感觉信息加工机制。其粒度值为400、600、1200、2000、3000、4000和8000。差异阈值进行了测量与双向强制选择技术，并在2.4妈妈和3.0妈妈之间时，他们可以determined.It的理由，基于韦伯的分数的差异阈值和人类的神经信息处理能力的限制，受试者知道程度的粗糙度，只有从振幅信息存在于表面不平坦。

Purposes of this study were to evaluate discriminating ability of touch for fine surface textures and to estimate sensory information processing mechanisms for the abilityIn the most important experiment aluminum oxide abrasive papers were adopted as the stimuli. Their grit values were 400, 600, 1200, 2000, 3000, 4000, and 8000. Difference thresholds were measured with two-way forced choice technique, and were between 2.4 mum and 3.0 mum when they could be determined.It was reasoned, based on Weber's fractions of difference thresholds and on the limits of neural information processing ability in humans, that the subjects knew degrees of roughness only from amplitude information present in surface unevenness.