While the distance of the two points on my forearm was about three and a half centimeters, the distance between them on my upper arm was just barely four centimeters. Another example would be between my finger and thigh. The distance between the two points on my finger was 0.3 centimeters, and the distance between them on my thigh was four centimeters. This shows that the receptive fields on my arms are relatively the same, and that the receptive fields on my finger are more sensitive than the ones on my thigh.
The reason for