Description
Measure an interval between ordered motor-task onset times.
Neurological signal records distinguish event markers, sampling rate, polarity, reference amplitude and physical units. A pre-trigger duration may not equal a whole sample count, so the rounding policy changes the represented interval. Scalar subtraction and timestamp arithmetic do not detect an event, validate a recording or establish a diagnosis.
Measure an interval between ordered motor-task onset times.
When to use this tool
Use Motor Task Repetition Interval when you already have firstOnsetSeconds, nextOnsetSeconds and need to measure an interval between ordered motor-task onset times.
How to use the tool and how it works
- Enter firstOnsetSeconds, nextOnsetSeconds. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read intervalSeconds. Use the output convention below.
Require nextOnsetSeconds>firstOnsetSeconds; return next-first seconds.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| firstOnsetSeconds | First Onset Seconds | Required. Finite number. |
| nextOnsetSeconds | Next Onset Seconds | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| intervalSeconds | Interval Seconds | Required. Finite number. |
{
"input": {
"firstOnsetSeconds": 3,
"nextOnsetSeconds": 5.5
},
"output": {
"intervalSeconds": 2.5
}
}Limitations and assumptions
- Zero or reversed intervals are rejected; no movement, task performance, rate or diagnosis is inferred.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Review the original signal, acquisition settings and annotation method when interpreting a recording. Use actual timestamps for variable timing and the complete reference/montage definition for signal analysis; preserve the local unit and rounding conventions.
References
Similar or alternative tools
- Evoked Potential Interpeak Time
Measure signed interpeak time between supplied evoked-potential markers.
- Neurologic Diary Event Duration
Measure a recorded neurological diary event's duration.