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    Proven Results Improvement in 77% of Participants

    Published peer-reviewed research shows that Cognitive FX treatment leads to meaningful symptom reduction in post-concussion symptoms for 77% of study participants. Cognitive FX is the only PCS clinic with third-party validated treatment outcomes.

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    Using the Brock String Test to Strengthen Your Eyes

    Image of Cognitive FX Team
    Updated on 24 January, 2019
    Medically Reviewed by

    Dr. Alina Fong

    Using the Brock String Test to Strengthen Your Eyes

     What is the Brock String Test? 

    The Brock String Test is designed to test and treat visual perception problems. This is important because these problems can contribute to headaches, blurry vision, balance problems, and more. Symptoms that can be caused by a concussion. The Brock String Test really looks at two different things: convergence and suppression.

    Convergence is when both eyes are looking forward and an object is moving closer and you have to almost cross your eyes. If you are not converging then one eye remains looking forward instead of meeting with the other eye. If this is one of your problems then you may be seeing double.

    Suppression is when your brain has decided to ignore the signals from one of your eyes that are bring transmitted up to the brain. In this case, you will just see one field of vision, and it may be influencing your balance and your peripheral vision.

    How Can I use the Brock String Test to Help my Eyes? 

    The Brock String Test is an exercise you can do a few minutes a day to help re-train your eyes and help them to work properly with both convergence and suppression. So this test not only helps you understand if your eyes are working properly but it is the exercise that can strengthen them and help them to both converge and work together again for better focus, and less suppression. 

     We use this with many of our patients during EPIC Treatment, and many times it is a take home exercise that we encourage our patients to continue after treatment

    Support after EPIC Treatment


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    4 Ways to Have an Injury Free Halloween

    It’s getting to be that time when children’s obsession with all things strange and maybe slightly scary is reaching an all-time high. They are picking out costumes, eagerly awaiting the sugar high...

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    Benefits of a Booster Day

    Benefits of a Booster Day

    Booster Days are designed to help previous Cognitive FX patients obtain additional support after EPIC Treatment if needed.

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    Computerized Concussion Testing-1

    Computerized Concussion Testing

    Computerized Concussion Tests

    As concern about sports concussion has continued to rise over the last few years, there has been some hope that large-scale baseline testing, such as computerized...

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    Employee Feature - Emily Harrison

    Employee Feature | Emily Harrison

    Emily is a NeuroCognitive Therapist here at Cognitive FX. 

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    Setting & Achieving Goals

    Setting & Achieving Goals

    Everyone has their own ideas and opinions about goals and goal setting. One of the things that I notice as I work with individuals during EPIC concussion treatment, is that a lot of time it is not...

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    Yes, COVID Can Cause Long Term Problems. Here's What to Do.

    Yes, COVID Can Cause Long-Term Problems. Here's What to Do.

    Long COVID is real. Data shared by the Centers for Disease Control and Prevention (CDC) from theHousehold Pulse Survey(July/August 2022) show that more than 40% of adults in the United States have...

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