It is hardly avoidable to be distracted by, e.g., other conversations, traffic noise, or screaming kids while focusing on the actual task. In flexible working surroundings like landscape offices, business trips, or even the home office, people have to deal with noisy environments. Additionally, we give recommendations for an adaptation of the test design for future studies. The present results provide a foundation for further investigations into the relationship between noise-canceling technology and mental workload. Subjective data indicate an improved situation for the participants when using the noise-canceling technology compared to “normal” headphones but shows no significant discrimination. The mean P300 activation at Cz resulted in a significant differentiation between the no noise and the other two test conditions. Our results of brain activity partially confirm an assumed lower mental load in no noise and noise-canceling compared to noise test condition. Therefore, participants had to solve spoken arithmetic tasks that were read out via headphones in three sound environments: a quiet environment ( no noise), a noisy environment ( noise), and a noisy environment but with active noise-canceling headphones ( noise-canceling).
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The present study uses electroencephalogram (EEG) and subjective measures to investigate if noise-canceling technologies can fade out external distractions and free up mental resources.
3Tampere Wireless Headset Audio Lab, Finland Research Center, Huawei Technologies Oy (Finland) Co., Ltd., Tampere, FinlandĪs working and learning environments become open and flexible, people are also potentially surrounded by ambient noise, which causes an increase in mental workload.2German Research Center for Artificial Intelligence, Berlin, Germany.
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