emsenn

Introduction to Somatic Awareness

7 min read

The hand you forgot

Place your hand on a table. Now, without moving it, try to feel its weight. Not the pressure of the table against your skin — the weight of the hand itself, the heaviness of bone and muscle resting against a surface. You will probably find that you can feel it — but that you were not feeling it a moment ago. The sensation was available but unattended. Your hand was resting on the table and you did not know it.

This gap — between what the body is doing and what you are aware of the body doing — is the territory of somatics.

What somatics is

Somatics is the study of the body as experienced from within — the body as a field of sensation, movement, and self-regulation, accessible through first-person awareness. The term was coined by Thomas Hanna in the 1970s to distinguish this perspective from the third-person view of anatomy and physiology, where the body is an object to be examined from outside.

The distinction matters. A physiotherapist examining your shoulder sees range of motion, muscle recruitment, joint mechanics. A somatic practitioner asks: what do you feel when you raise your arm? Where does the movement begin? Where does it stop? What effort are you making that you do not need to make?

These are not the same questions, and they access different information. The third-person view can identify structural abnormalities, tissue damage, and biomechanical dysfunction. The first-person view can identify habitual patterns of tension, bracing, and movement restriction that are invisible to external observation — because they feel normal to the person who has them. You cannot see someone’s sensory-motor amnesia from the outside. You can only discover it from within.

Sensory-motor amnesia

Thomas Hanna’s central concept is sensory-motor amnesia (SMA): the condition in which habitual muscle tension has become so familiar that the person no longer perceives it. The muscles are contracted — sometimes chronically — but the nervous system has stopped registering the contraction. The person cannot feel the tension and therefore cannot release it voluntarily.

SMA is not weakness and it is not injury. It is a learned pattern — the nervous system has automated a muscular response and then lost track of the automation. The muscles are not broken. The brain has stopped sending the signal to let go, because it no longer notices that the muscles are holding.

Hanna identified three reflex patterns that produce SMA:

  1. Green-light reflex (Landau arousal response) — the pattern of extension and action. Back muscles tighten, chest lifts, jaw sets. This is the posture of “go” — productivity, effort, getting things done. Chronically activated by cultures that reward constant activity.

  2. Red-light reflex (startle response) — the pattern of flexion and withdrawal. Shoulders round, belly tightens, head drops. This is the posture of protection — the body curling inward against threat. Chronically activated by anxiety, fear, and environments that feel unsafe.

  3. Trauma reflex — asymmetrical patterns produced by injury, surgery, or repetitive one-sided activity. The body compensates around a site of pain or damage, and the compensation becomes permanent even after the original condition resolves.

These patterns are clinically significant. Much of what is diagnosed as “back pain,” “neck tension,” or “poor posture” is sensory-motor amnesia — habitual contraction that the person cannot feel and therefore cannot change through effort or stretching. Stretching a muscle that the brain is actively (but unconsciously) contracting does not resolve the pattern. It just forces the muscle to lengthen against its own contraction, which the nervous system may interpret as a threat.

The two sensory systems

Somatic awareness rests on two sensory systems that most people rarely think about:

Proprioception — the sense of the body’s position and movement in space. Proprioceptors in muscles, tendons, and joints report joint angles, muscle length, and movement velocity. This is how you know where your arm is without looking at it — and why you can walk without watching your feet. Proprioception is the foundation of coordinated movement.

Interoception — the sense of the body’s internal state. Interoceptors report heart rate, breathing, gut state, temperature, hunger, thirst, and the subtler signals that constitute what we call “gut feelings.” Interoception is the sensory basis of affect — the felt sense of whether things are going well or badly. When you feel anxious “in your stomach” or calm “in your chest,” you are reporting interoceptive data.

These systems are not fixed. They can be refined through practice. A trained dancer has more precise proprioception than someone who has never attended to movement. A meditator who practices body scanning develops greater interoceptive accuracy. Somatic education works by deliberately refining these sensory systems — making available information that was always present but unattended, like the weight of your hand on the table.

Pandiculation: the somatic alternative

If stretching does not resolve sensory-motor amnesia, what does? Hanna’s answer is pandiculation — a three-step process that works with the nervous system rather than against it:

  1. Voluntary contraction — deliberately contract the already-tight muscles, tighter than their habitual state. This forces the nervous system to register the contraction — to “remember” that the muscles are holding.
  2. Slow, controlled lengthening — gradually release the contraction, as slowly as possible. The slowness is critical: it gives the nervous system time to recalibrate, to learn a new resting length.
  3. Complete relaxation — fully release. The nervous system integrates the new information: this is what relaxed feels like.

Pandiculation is what your body does naturally when you yawn and stretch upon waking. The morning stretch is not a stretch in the exercise sense — you are contracting muscles before releasing them, resetting the nervous system’s baseline for the day. Somatic education formalizes this innate process and applies it to specific patterns of chronic tension.

Self-check

1. A person has had tight shoulders for years. They stretch daily but the tightness always returns within hours. Using somatic concepts, explain why stretching is not resolving the problem.

The tightness is likely sensory-motor amnesia — the nervous system is actively maintaining the shoulder contraction but the person cannot feel it. Stretching forces the muscle to lengthen mechanically, but it does not change the nervous system’s instruction to contract. As soon as the stretch is released, the habitual contraction resumes because the brain is still sending the “hold” signal. The intervention needs to work at the level of the nervous system (through pandiculation or somatic education), not at the level of the muscle tissue.

2. What is the difference between proprioception and interoception?

Proprioception is the sense of the body’s position and movement in space — it reports where the body is and how it is moving (joint angles, muscle length, movement velocity). Interoception is the sense of the body’s internal state — it reports physiological conditions like heart rate, breathing, gut state, and the visceral signals that underlie emotional experience. Proprioception tells you where your arm is; interoception tells you that your stomach is tight with anxiety. Both are first-person sensory systems, both can be refined through practice, and both are central to somatic awareness.

3. Why does Hanna's pandiculation sequence begin with voluntary contraction rather than relaxation?

Because the problem in sensory-motor amnesia is that the nervous system has lost awareness of the contraction — it no longer registers that the muscles are holding. You cannot voluntarily release a contraction you cannot feel. By deliberately contracting the muscles tighter, you force the nervous system to notice the contraction (you make the signal louder than the background noise). Only then can the nervous system engage in the slow, controlled release that recalibrates its resting baseline. Starting with relaxation would fail because the nervous system does not know it is holding.

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