Thomas Hanna (1928–1990) was an American philosopher and movement educator who coined the modern usage of the term somatics to name the field concerned with the body as experienced from within. Hanna studied philosophy at the University of Chicago under Richard McKeon and later trained with Moshe Feldenkrais, whose work on movement and awareness shaped Hanna’s approach to bodily education.
Hanna founded the Novato Institute for Somatic Research and Training in California and developed Clinical Somatic Education, a hands-on method for resolving chronic muscular pain through pandiculation — voluntary contraction followed by slow, controlled release. His central clinical concept, sensory-motor amnesia (SMA), describes the condition in which habitual muscular contraction drops below the threshold of conscious awareness. SMA isn’t a muscular problem but a cortical one: the brain has stopped voluntarily controlling the contraction pattern.
Hanna identified three reflex patterns — the green-light reflex (posterior contraction from the Landau arousal response), the red-light reflex (anterior contraction from the startle response), and the trauma reflex (lateral contraction from injury or asymmetric use) — as the primary sources of SMA. His method addresses these patterns through guided somatic awareness and pandiculation.
Notable works
- Somatics: Reawakening the Mind’s Control of Movement, Flexibility, and Health (1988)
- “Clinical Somatic Education: A New Discipline in the Field of Health Care” (1990)
- The Body of Life (1980)
Related
- somatics — the field Hanna named
- Moshe Feldenkrais — movement educator whose work influenced Hanna