Does ImPACT require an external mouse? Either an external mouse or trackpad can be used. Separate normative data is available for each. Updated on 02/22/2021 Tagged: ImPACT Was this article helpful? Yes No Related Articles How do I add my ImPACT Passport ID to the app? What is the Two-Factor Score? What are the differences between ImPACT and ImPACT Version 4? Is ImPACT Version 4 available in languages other than English? How do I know whether I should use the Two-Factor Score or the 4 composite scores when interpretating the ImPACT Clinical Report data? How do I find the ImPACT test version?