It seems as if touch doesn’t merely increase your good feelings, but it also decreases your bad feelings.
For many years, researchers believed that the nerves of our skin could recognize just four kinds of stimulation: touch, heat, pain and itch. But there is growing evidence that cutaneous senses include another one that conveys information not just about touch, but about the pleasant properties of touch.
Animals that are social by nature, such as many birds and mammals, have areas that can’t be reached by their own design and must be addressed either by rubbing against objects or by grooming by others. These areas — largely the head and neck — appear to be endowed with extra nerves that feel good when stimulated.
Understanding the evolution of consciousness will not come from looking for intelligent behavior in other animals, but rather from understanding the fundamental mechanisms that support subjective awareness and selective attention, which we now know insects have.
Consciousness is a summary, produced by the non-conscious brain, and tossed up for us to view. Consciousness requires extra brain work to produce. The hard parts of thinking all happen below the level of consciousness, and we must make an effort to tap what is going on. The thinking that our brain does below consciousness, or before we are consciously aware of what it is doing, is the important part. All animals have the general capabilities of that most important part, and whether they are conscious or not doesn’t much matter.
Touch is very important to your horse. It is the main way that you communicate with him when you are on his back. Horses bond through touch, and relax when they are touched by a loving partner. And because his vision up close is very poor, touch becomes very important to him when you are up close.
The importance of touch is made clear when we learn that his side, where you might have once kicked him, is more sensitive even than a human fingertip or the calf of your leg, and that he can react to a touch that would be too light for you to feel at all.