Laboratoire de Neurosciences Intégratives et Cliniques, EA 481, Université Bourgogne Franche-Comté, Besançon, France.
INSERM CIC 1431, Centre d'Investigation Clinique de Besançon, Centre Hospitalier Universitaire de Besançon, Besançon, France.
PLoS One. 2020 Dec 31;15(12):e0244820. doi: 10.1371/journal.pone.0244820. eCollection 2020.
Since the beginning of the 20th century, electroencephalography (EEG) has been used in a wide variety of applications, both for medical needs and for the study of various cerebral processes. With the rapid development of the technique, more and more precise and advanced tools have emerged for research purposes. However, the main constraints of these devices have often been the high price and, for some devices the low transportability and the long set-up time. Nevertheless, a broad range of wireless EEG devices have emerged on the market without these constraints, but with a lower signal quality. The development of EEG recording on multiple participants simultaneously, and new technological solutions provides further possibilities to understand the cerebral emotional dynamics of a group. A great number of studies have compared and tested many mobile devices, but have provided contradictory results. It is therefore important to test the reliability of specific wireless devices in a specific research context before developing a large-scale study. The aim of this study was to assess the reliability of two wireless devices (g.tech Nautilus SAHARA electrodes and Emotiv™ Epoc +) for the detection of musical emotions, in comparison with a gold standard EEG device. Sixteen participants reported feeling emotional pleasure (from low pleasure up to musical chills) when listening to their favorite chill-inducing musical excerpts. In terms of emotion detection, our results show statistically significant concordance between Epoc + and the gold standard device in the left prefrontal and left temporal areas in the alpha frequency band. We validated the use of the Emotiv™ Epoc + for research into musical emotion. We did not find any significant concordance between g.tech and the gold standard. This suggests that Emotiv Epoc is more appropriate for musical emotion investigations in natural settings.
自 20 世纪初以来，脑电图 (EEG) 已广泛应用于医学需求和各种脑过程的研究。随着技术的快速发展，越来越多的精确和先进的工具已经出现用于研究目的。然而，这些设备的主要限制通常是价格高，对于一些设备而言，是便携性低和设置时间长。尽管如此，市场上已经出现了广泛的无线 EEG 设备，没有这些限制，但信号质量较低。多参与者同时进行 EEG 记录以及新技术解决方案提供了进一步理解群体大脑情绪动态的可能性。大量研究比较和测试了许多移动设备，但得出了相互矛盾的结果。因此，在开发大规模研究之前，在特定的研究背景下测试特定无线设备的可靠性非常重要。本研究旨在评估两种无线设备 (g.tech Nautilus SAHARA 电极和 Emotiv™ Epoc+) 在检测音乐情感方面的可靠性，与黄金标准 EEG 设备进行比较。16 名参与者在聆听他们喜欢的引起寒意的音乐片段时报告了情绪愉悦感（从低愉悦感到音乐寒意）。在情感检测方面，我们的结果表明，在 alpha 频带中，Epoc + 和黄金标准设备在左前额叶和左颞叶区域具有统计学上显著的一致性。我们验证了 Emotiv™ Epoc + 用于研究音乐情感的用途。我们没有发现 g.tech 和黄金标准之间有任何显著的一致性。这表明 Emotiv Epoc 更适合在自然环境中进行音乐情感研究。
