What You'll Master

✓ Why the Eyes Reveal What Palpation Can't

The vestibulo-ocular reflex depends on accurate input from three sources: the vestibular system, cervical proprioception, and vision. When a cervical joint is giving wrong or insufficient information, gaze stability breaks down. You'll see exactly how this presents — and why it changes with head position.

✓ Congruence, Incongruence, and What the Eyes Tell You

When proprioceptive inputs from cervical joints agree, the brain has a stable map and eye movements are smooth. When one joint is stuck, the inputs conflict — and the eyes show it. You'll understand how to use head position to move between congruent and incongruent states and what you're observing when you do.

✓ The P1 Test — Finding the Primary Proprioceptive Error

Learn how the P1 test identifies the position of greatest proprioceptive incongruence, elicits the cervico-collic reflex, and pinpoints the exact joint and vector of failure — in under a minute. This is the test that makes precise, targeted adjusting possible.

✓ Objective Verification Before and After Adjustment

Once you've adjusted, how do you know it worked? Eye movements and pupillary response give you an immediate, observable answer. You'll leave with a clear, repeatable framework for assessing the result of your correction on the spot.

Who Should Attend

• Chiropractors who want an objective, neurologically grounded method for locating the primary problem — not just the most restricted joint

• Clinicians seeking a fast, repeatable assessment that integrates cervical function, eye movements, and autonomic state

• Practitioners who want to verify their adjustments are hitting the right target

• Students and recent graduates wanting to build diagnostic precision from the ground up

• Experienced doctors ready to integrate eye movement testing into their existing clinical workflow

What Makes This Different

This is the final webinar in the A2N Foundations Series — and it's where everything you've learned across the previous five sessions comes together into a single, coherent clinical framework.

Most clinical assessment stops at motion palpation — finding where the spine won't move. But restriction is often a compensation. The joint driving the patient's pattern may not be the most restricted one.

This webinar shows you how to look upstream. By combining cervical proprioception, eye movement behaviour, and pupillary response, you can identify the joint producing the brain's primary error — and confirm that your adjustment resolved it. This is not a refinement of conventional assessment. It's a different level of diagnostic reasoning entirely.

About the Presenter

Dr. Russ Hornstein is a Chiropractic Neurologist with 31 years of experience and is highly dedicated to the study of spinal biomechanics and its impact on the nervous system. He developed the 'Adjusting to Neutral' HVLA method, which is proving to effectively resolve joint dysfunction with precision, speed, and patient comfort. Dr. Hornstein practices in Lisbon, Portugal, and teaches this technique across Europe, the U.S. and Africa.