Noise Health Close
 

Figure 3: Overview of the experimental setup of ASSR recording. All components are monitored by a single PC. The stimulation signals from the DA output of the NI-USB 6229 board are attenuated by an operational amplifier with a gain of −0.5, so that they may be delivered to the “tape input” of the audiometer, which enables the operator to adjust the levels of stimuli delivered by the headphones. In parallel, ASSRs are scalp-recorded on the electrodes (placed between vertex (+) and hairline (−), with clavicle as a ground) and are then amplified by an EEG amplifier, before reaching the AD input of the data acquisition board. Data is processed online through the MASTER SYSTEM software

Figure 3: Overview of the experimental setup of ASSR recording. All components are monitored by a single PC. The stimulation signals from the DA output of the NI-USB 6229 board are attenuated by an operational amplifier with a gain of −0.5, so that they may be delivered to the “tape input” of the audiometer, which enables the operator to adjust the levels of stimuli delivered by the headphones. In parallel, ASSRs are scalp-recorded on the electrodes (placed between vertex (+) and hairline (−), with clavicle as a ground) and are then amplified by an EEG amplifier, before reaching the AD input of the data acquisition board. Data is processed online through the MASTER SYSTEM software