Table 1.
ImPACT Subtest Descriptions
| ImPACT Subtest | Cognitive Domain | Task Description | Dependent Variable |
|---|---|---|---|
| Speed Click | Reaction Time | Presented with a yellow and black circle simultaneously. Click as fast as you can on the yellow circle. | Reaction Time |
| Word Memory | Verbal Learning & Memory | Presented with 12 individual words to memorize. Immediately following presentation, indicate which words were previously viewed among presented targets and distractors. | Percentage Correct |
| Design Memory | Visual Learning & Memory | Presented with 12 abstract designs to memorize. Immediately following presentation, indicate which designs were previously viewed among presented targets and distractors. | Percentage Correct |
| X's & O's | Spatial Working Memory with Interference | Three X's and O's are highlighted among several X's and O's. Participant must remember their location while completing a reaction time task whereby they press a red key when they see a red circle and a blue key when they see a blue square. | Percentage Correct (X's & O's) |
| Symbol Match | Processing Speed & Associative Memory | A symbol is presented and the participant must quickly click on the corresponding number from a provided key. After multiple trials of each symbol, the key disappears and the participant must indicate, from memory, the number corresponding to presented symbols. | Percentage Correct (Incidental Learning) Reaction Time (Key Visible and Incidental Learning) |
| Color Match | Choice Reaction Time | Presented with a color word (e.g., RED). Participant must quickly indicate whether the written word and ink color match. | Percentage Correct & Reaction Time |
| Four Letters | Spatial Working Memory with Interference/Processing Speed | Four letters are presented simultaneously. Participant must remember them, in order, while completing a processing speed task whereby they click on number tiles in reverse order. | Percentage Correct (Four Letters) |
| Word Memory Delay | Delayed Recognition Memory | Participant indicates which words among presented targets and distractors were on the list presented 20 minutes earlier. | Percentage Correct |
| Design Memory Delay | Delayed Recognition Memory | Participant indicates which designs among presented targets and distractors were among designs presented 20 minutes earlier. | Percentage Correct |