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ImPACT™ Testing

ACMC is a Certified ImPACT™ (Immediate Postconcussion Assessment and Cognitive Testing) Consultation testing location.

About ImPACT™ Baseline Concussion Testing

The ImPACT™ tool sets a baseline for normal functioning brain activities. It's the most effective tool in the comparative assessment of a person's neurocognitive state before a concussion occurs.

The computer-based ImPACT™ test takes about 25 minutes to complete. It looks at and records multiple aspects of an athlete's neurocognitive state, such as:

  • Verbal and visual memory
  • Brain processing speed
  • Reaction time

The ImPACT™ test alone does not diagnose a concussion. Experts use the tool:

  • to establish baseline data when a player is in a non-concussed or "normal" state.
  • as part of a complete evaluation process to manage head injuries more accurately, comprehensively and thoroughly.

Post-concussion Neurocognitive Testing

When an athlete does suffer a concussion, post-injury treatment is crucial. Our concussion experts use the baseline data as part of the post-injury exam. They may also conduct other brain function tests to better manage each athlete's unique case.

In-Clinic Baselines

Any athlete or person that would like a baseline ImPACT™ can schedule an appointment with our physician extender. There is a $25 fee for the baseline and the test will be available if and when they have a concussion.

Test Modules & What They Mean

  • Word Memory: assesses the individual's attention and ability to process and remember words briefly displayed on the screen. 12 words are presented to the test taker. Test takers are then presented with a list of 24 words, including the original 12, and asked whether each word was in the original list.
  • Design Memory: assesses visual memory. The test takers are presented with 12 visual designs. They are then presented with 24 designs, including the original 12, and asked whether each design was in the original set.
  • X and Os: assesses visual working memory, processing speed, and visual memory. The X's and O's present at random, 3 of which are highlighted. The test taker is then distracted with an "interference" task. Following that task, the test taker is shown the same assortment of X's and O's without highlighted and asked to identify which ones were previously hightlighted.
  • Symbol Match: evaluates the test taker's visual processing speed, learning & memory by presenting a key that associates symbols with a particular number, and then asking the test taker to click the number associated with the symbol when presented. They are then asked to recall the numbers associated with each symbol.
  • Color Match: measures choice reaction time as well as impulse control. Word "Red", "Blue", or "Green" are presented one at a time, and the test taker is instructed to click on the word as quickly as possible only if the word and font color match.
  • Three Letters: measures memory and neurocongitive (visual-motor response) speed. Test takers are shown a grid of 25 numbers (1-25), jumbled in random order, and asked to click on them in backwards order as quickly as possible. Three random consonant letters then appear on the screen, then test takers are asked to repeat the number exercise. After 18 seconds, the grid disappears, and test takers are asked to recall the three letters.

ImPACT™ Composite Scores

  • Verbal Memory Composite
    • The score represents the average of the following scores:
      1. Word Memory: total percent correct
      2. Symbol Match: total correct hidden symbols, from 2nd part of test
      3. Three Letters: percent of total letters correct
    • The Higher the score, the better
  • Visual Memory Composite
    • The score represents the average of the following scores:
      1. Design Memory: total percent correct
      2. Xs and Os: total correct, measured out of 12
    • The Higher the score, the better
  • Processing/Visual Motor Speed Composite
    • The score represents the average of the following scores:
      1. Xs and Os: total correct on the interference test divided by 4
      2. Three Letters: average counted correctly multiplied by 3
    • The Higher the score, the better
  • Reaction Time Composite
    • The score represents the average of the following scores:
      1. Xs and Os: average correct reaction time on the interference test
      2. Symbol Match: average correct reaction time divided by 3
      3. Color Match: average correct reaction time
    • The Lower the score, the better
  • Impulse Control Composite
    • The score represents the average of the following scores:
      1. Xs and Os: total incorrect on the interference test as a percentage
      2. Color Match: total "commissions" or errors
    • The Lower the score, the better
  • Total Symptom Composite Score
    • This score measures the individual's self-reported symptoms. A list of 22 symptoms is measured, each on a scale from 0 - 6 (not present - severe)