Benedetti F
Perception. 1986;15(3):285-301. doi: 10.1068/p150285.
Cutaneous points on different fingers were brought into contact with each other to ascertain whether one stimulus was perceived to be single or double. The perceptual responses were mapped on the five fingertip pads. The results show that there is an extensive cutaneous area on each fingertip pad which elicits one-stimulus perceptions when a single stimulus is applied between each finger and the thumb. This area decreases when the stimulus is applied to adjacent fingers (2-3, 3-4, 4-5), and even more so when it is applied to nonadjacent fingers (2-4, 2-5, 3-5). In fact, in adjacent and nonadjacent fingers the cutaneous surface eliciting a doubling of the single stimulus (diplesthesia) is very extensive. The spatial arrangement of the cutaneous areas eliciting single perceptions appears to be invariant in the proximo-distal plane. Instead, the shift from one kind of perception to another occurs in the medio-lateral plane. It is suggested that this perceptual organization could reflect a neural organization.
将不同手指上的皮肤点相互接触，以确定一种刺激被感知为单一刺激还是双重刺激。将感知反应映射在五个指尖垫上。结果表明，每个指尖垫上都有一个广泛的皮肤区域，当在每个手指与拇指之间施加单个刺激时，该区域会引发单一刺激感知。当刺激施加于相邻手指（2 - 3、3 - 4、4 - 5）时，该区域会减小，当刺激施加于非相邻手指（2 - 4、2 - 5、3 - 5）时，减小得更多。事实上，在相邻和非相邻手指中，引发单一刺激加倍（复觉）的皮肤表面非常广泛。引发单一感知的皮肤区域的空间排列在近 - 远平面上似乎是不变的。相反，从一种感知到另一种感知的转变发生在中 - 侧平面上。有人认为这种感知组织可能反映了一种神经组织。
