Stim Files |verified| -

(often called triggers or TTL pulses). These pulses mark the exact millisecond a stimulus (like a flash of light or a sound) occurred, allowing researchers to sync brain activity data with external events. Circuit Simulation (PSpice/Schematics): In engineering, stimulus files (typically ) are used to define input waveforms

• Likely cause: The amplitude is set below the patient’s sensory threshold.
• Solution: Increase amplitude in the patient programmer, or open the file in clinician software to check if the lead impedance is too high.

References (Example)

1. Pernet, C. R., et al. (2020). EEG‑BIDS, a standard for EEG data sharing. NeuroImage, 220, 117056.
2. Kleiner, M., et al. (2007). What’s new in Psychtoolbox-3? Perception, 36(ECVP Abstract Suppl.).
3. Neurobehavioral Systems. (2023). Presentation® user manual.

• Intan RHD/RHS: Uses specific binary stimulation files tied to their RHS stim/recording headstages.
• Blackrock Cerebus: Utilizes the NSx family for stimulation metadata.
• Open Ephys: The community leans toward JSON-based STIM formats or ProtoBufs. This open standard allows a researcher to write a STIM file in Python using an stimulus.StimulusGroup class and export it to a .stim.json file.
• Tucker-Davis (TDT): Uses *.m (MATLAB) structured arrays or the Stimulus Buffer binary format.

Title: Supercharging Quantum Error Correction Simulations with Stim 🚀 stim files

4. Parameter Variation

• Set parameters for experimental conditions: contrast, orientation, color, pitch, luminance, size, position.
• Support for factorial design (e.g., 2x2 combination of face type × emotion).