✓Set up auditory P50 sensory gating stimulus presentation equipment
✓Prepare infant subjects and recording apparatus for EEG data collection
✓Record and analyze P50 auditory evoked potentials in infants
✓Interpret sensory gating as a marker of cerebral inhibition
Protocol
Biopharma Insights Methods to record auditory P50 sensory gating, a physiological marker of cerebral inhibition which reflects early stages of attention, are described.
Set up stimulus delivery equipment and define auditory tone parameters (frequency, intensity, interstimulus intervals) required for P50 gating paradigm testing in infants.
▶ 03:15
2
Prepare infant and EEG recording setup
Position the infant subject, apply EEG electrode cap or individual electrodes, verify electrode impedance, and confirm all recording hardware connections before data acquisition begins.
▶ 04:58
3
Conduct P50 auditory evoked potential recording
Execute the paired-stimulus P50 gating protocol, presenting conditioning and test stimuli while recording continuous EEG activity from relevant scalp sites.
▶ 08:18
4
Analyze P50 amplitude and gating ratio data
Extract P50 component amplitudes from conditioning and test responses, calculate sensory gating ratio, and interpret results as a physiological index of inhibitory capacity.
▶ 09:37
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