Stim Files |top|

Measured in microseconds (µs), pulse width dictates how long each individual electrical burst lasts. Shorter pulses tend to target larger nerve fibers (often related to paresthesia-based pain relief), while longer pulses may recruit smaller fibers. A stim file locks in this critical temporal variable.

are critical for tracking errors rather than just raw measurement results [12]. Sampling at Scale: stim files

Think of a STIM file as a musical score for an electrode array. Just as a musical score tells each musician exactly when to play, how loud to play, and for how long, a STIM file tells each channel on a stimulator chip: Measured in microseconds (µs), pulse width dictates how

| Limitation | Explanation | |------------|-------------| | | A typo in onset_ms (e.g., “2000x”) may crash the experiment or cause silent timing errors. | | Large file overhead | For thousands of trials with many columns, parsing overhead can increase latency (rarely critical for psychophysics, but noticeable in real‑time loops). | | Limited data types | Binary large objects (e.g., waveforms, movie frames) must be stored externally; the stim file only contains paths. | | No hierarchical structure | Block‑nested designs (e.g., run > block > trial) require redundant columns or multiple files. | | Timing precision | Onset/offset columns typically assume software timing; hardware‑synchronized events may need additional descriptors (e.g., TTL_pulse ). | are critical for tracking errors rather than just

Even experienced engineers encounter STIM file failures. Here is a troubleshooting checklist:

Because stim files directly control medical implants, they are a cybersecurity concern. Malicious or corrupted stim files could theoretically:

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