The AdTonos Amplifier Neuro Test analysis was conducted using MRI scans from 20 participants. These individuals were residents of the Netherlands, bilingual in Dutch and English, aged 20 years and above, and represented a cross-section of the Dutch population in terms of gender, age, and educational background.
For the study AdTonos engineers randomly selected 16 ads from the platform’s programmatic demand, of which 8 were in English and 8 in Dutch.
Filenames of the ads were anonymised using a random 8 character string. Then, two sets of those ads were prepared: non-enhanced (referred as „flat”) and enhanced by Amplifier – in accordance with previously developed sound studio enhancing pattern for headphones as research participants listened to those ads on headphones.