On the flexor surface of the forearm 147 touch spots are found in an area containing 22 hairs.
3.
On the scalp 66 touch spots are found in an area containing 38 hairs.
Schäfer says: “An area of the dorsum of the distal phalanx of a finger contains about seven times as many touch spots as an equal area between the shoulders. Regions poor in touch spots are the flexor surface of the upper arm, the upper third of the thigh, the leg above the inner malleolus, the neck, and in general the skin over subcutaneous surfaces of bone.”[81]
Table IV.—Distribution of Cold and Warmth Sensations.
The Scale includes twelve grades of sensation in cold, and eight in warmth sensations, and commences with the regions which yield the maximal intensity of sensation.
Cold Sensations.
1.
Tips of fingers and toes, malleoli, ankle.