Stim Files May 2026

These sensory prosthetics use highly personalized STIM files. An audiologist maps frequencies to electrodes; that map is saved as a STIM file. When the patient turns on their hearing device, the processor reads this file thousands of times per second to translate sound waves into electrical pulses.

While no universal standard exists, most stim files share a common row‑based, column‑delimited structure (e.g., tab‑separated or comma‑separated values). A representative example (visual search task): stim files

| trial | condition | target_orientation | distractor_orientation | set_size | onset_ms | duration_ms | img_file | |-------|-----------|--------------------|------------------------|----------|----------|-------------|-------------------| | 1 | target | 45 | 135 | 8 | 0 | 200 | gratings/45deg.bmp| | 2 | distractor | - | 90 | 8 | 2500 | 200 | gratings/90deg.bmp| | 3 | catch | - | - | 0 | 5000 | 200 | blank.bmp | These sensory prosthetics use highly personalized STIM files

Common columns include:

This is the functional heart of the file. There are two primary formats: While no universal standard exists, most stim files