pulse = 'cathode': 'Elec_A1', 'anode': 'Elec_A2', 'amplitude_ua': 150, # microamps 'pulse_width_us': 250, 'interphase_delay_us': 50, 'frequency_hz': 20, 'duration_sec': 5.0
: Researchers use these files to define parameters like the size or position of a virtual object for every trial. stim files
At its core, a (short for "stimulation file") is a structured data container that stores a specific set of parameters required to generate an electrical stimulus. Think of it as a musical score for an electronic orchestra: the hardware (the stimulator) is the instrument, but without the score (the stim file), it produces nothing but noise. These files act as a "script" for an
These files act as a "script" for an fMRI scan, telling analysis software like AFNI exactly when a patient saw a picture or heard a sound. pulse = 'cathode': 'Elec_A1'
This case underscores the thesis: