Fatih Çelik — Writings https://fatihcelik.net/articles/ Essays on physiotherapy, neurorehabilitation, motor control, pain science, and what computational neuroscience returns to the clinic. en © 2026 Fatih Çelik contact@fatihcelik.net (Fatih Çelik) contact@fatihcelik.net (Fatih Çelik) Sun, 24 May 2026 12:00:00 +0300 Hand-written static site https://www.rssboard.org/rss-specification Pain Is an Output, Not an Input https://fatihcelik.net/articles/pain-is-an-output/ https://fatihcelik.net/articles/pain-is-an-output/ Mon, 04 May 2026 09:00:00 +0300 Fatih Çelik pain-science neurorehabilitation The most useful thing modern neuroscience gave the clinic was a reversal: pain is not a reading from the tissues but a protective output of the brain — and what that changes about treatment. The Neuroplasticity Engine https://fatihcelik.net/articles/neuroplasticity-engine/ https://fatihcelik.net/articles/neuroplasticity-engine/ Sun, 12 Apr 2026 09:00:00 +0300 Fatih Çelik neurorehabilitation Rehabilitation does not return a damaged nervous system to its old self; it teaches a changed one a new way to be. Neuroplasticity as the engine of recovery, and the rules it obeys. The Sensorimotor Loop https://fatihcelik.net/articles/sensorimotor-loop/ https://fatihcelik.net/articles/sensorimotor-loop/ Mon, 09 Mar 2026 09:00:00 +0300 Fatih Çelik motor-control Movement is not a command sent down a wire but a prediction the body makes and corrects. Why treating the loop, not the muscle, is where rehabilitation begins to work. Movement as Computation https://fatihcelik.net/articles/movement-as-computation/ https://fatihcelik.net/articles/movement-as-computation/ Sun, 15 Feb 2026 09:00:00 +0300 Fatih Çelik computational biomechanics A reach toward a cup answers an impossibly underdetermined problem — Bernstein's degrees-of-freedom problem. What the body's solution teaches a therapist about what to actually train. Reading the Network: Interpretability for the Clinic https://fatihcelik.net/articles/interpretability-clinic/ https://fatihcelik.net/articles/interpretability-clinic/ Tue, 20 Jan 2026 09:00:00 +0300 Fatih Çelik ai interpretability A model that predicts who will recover is worthless to a clinician who cannot ask it why. What mechanistic interpretability of neural networks returns to rehabilitation.