The use of hands for gathering rich sensory information is essential for proper interaction with the environment; therefore, the restoration of sensation is critical for reestablishing the sense of embodiment in hand amputees. Here, we show that a noninvasive wearable device can be used to provide thermal sensations on amputees’ phantom hands. The device delivers thermal stimuli to specific regions of skin on their residual limb. These sensations were phenomenologically similar to those on the intact limbs and were stable over time. Using the device, the subjects could successfully exploit the thermal phantom hand maps to detect and discriminate different thermal stimuli. The use of a wearable device that provides thermal sensation can increase the sense of embodiment and improve life quality in hand amputees.

中文翻译：

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上肢截肢者自然热感觉的恢复

使用手来收集丰富的感官信息对于与环境进行适当的互动至关重要；因此，感觉的恢复对于重建手部截肢者的具身感至关重要。在这里，我们展示了一种非侵入式可穿戴设备可用于为截肢者的幻手提供热感觉。该设备将热刺激传递到残肢皮肤的特定区域。这些感觉在现象学上与完整肢体上的感觉相似，并且随着时间的推移是稳定的。使用该设备，受试者可以成功地利用热幻影手图来检测和区分不同的热刺激。使用提供热感觉的可穿戴设备可以增加身体感觉并改善手部截肢者的生活质量。