触觉失认指病人感觉功能相对完整和适当的认知功能保留,但以手接触不能识别原来熟悉的、可正常感知的实体。触觉性形状感知发生破坏如全面性空间能力、触觉性空间能力、手法形状探索、甚至米制长度的精确感知。该证具有手的特异性,仅见于手的掌面。具有形状特异性主要是形状感知障碍而非定位感知障碍,表明“what”、“where”之间触觉过程联系的中断。 Haptic failure refers to patients with relatively complete sensory function and adequate cognitive function retention, but does not recognize the familiar, normally perceptible entity by hand. Tactile shape perception breaks down such as comprehensive spatial capabilities, tactile spatial abilities, exploration of manipulative shapes, and even the precise perception of rice length. The card has hand-specific, found only in the palm of your hand. Having a shape-specific predominantly a shape-sensing disorder rather than a locating-aware disorder indicates an interruption in the tactile process connection between “what” and “where”.