ImPACT is the most-widely used and most scientifically validated computerized concussion evaluation system. Many teams and organizations around the world trust ImPACT for concussion management. An estimated 4 to 5 million concussions occur annually, with increases emerging among middle school athletes.
Horizontal logarithmic scale marked with units of time. A millisecond (from milli-and second; symbol: ms) is a thousandth (0.001 or 10 â3 or 1 / 1,000) of a second. 10 milliseconds (a hundredth of a second) are called a centisecond. 100 milliseconds (one tenth of a second) are called a decisecond. To help compare orders of magnitude of different times, this page lists times between 10â3 seconds and 10 0 seconds (1 milli second and one second). See also times of other orders of magnitude.
I think the answer you are looking for is to invert the value. As Ariel Bendavid says, the units of Hertz is [1/s] and you want something in [s]. Take a sound with frequency of 1000Hz. The period, the time for one cycle, is 1/1000Hz = 0.001s or 1ms (millisecond). Written Aug 13, 2015.