Qiu Jenny M, Casey Michael A, Diamond Solomon G
Thayer School of Engineering, Dartmouth College, Hanover, NH, United States.
Department of Music, Dartmouth College, Hanover, NH, United States.
Front Hum Neurosci. 2019 Jul 25;13:258. doi: 10.3389/fnhum.2019.00258. eCollection 2019.
Event related potential (ERP) components, such as P3, N2, and FRN, are potential metrics for assessing feedback response as a form of performance monitoring. Most research studies investigate these ERP components using clinical or research-grade electroencephalography (EEG) systems. Wearable EEGs, which are an affordable alternative, have the potential to assess feedback response using ERPs but have not been sufficiently evaluated. Feedback-related ERPs also have not been scientifically evaluated in interactive settings that are similar to daily computer use. In this study, a consumer-grade wearable EEG system was assessed for its feasibility to collect feedback-related ERPs through an interactive software module that provided an environment in which users were permitted to navigate freely within the program to make decisions. The recording hardware, which costs < $1,500 in total, incorporated the OpenBCI Cyton Board with Daisy chain, a consumer-grade EEG system that costs $949 USD. Seventeen participants interacted with an oddball paradigm and an interactive module designed to elicit feedback-related ERPs. The features of interests for the oddball paradigm were the P3 and N2 components. The features of interests for the interactive module were the P3, N2, and FRN components elicited in response to positive, neutral, and two types of negative feedback. The FRN was calculated by subtracting the positive feedback response from the negative feedback responses. The P3 and N2 components of the oddball paradigm indicated statistically significant differences between infrequent targets and frequent targets which is in line with current literature. The P3 and N2 components elicited in the interactive module indicated statistically significant differences between positive, neutral, and negative feedback responses. There were no significant differences between the FRN types and significant interactions with channel group and FRN type. The OpenBCI Cyton, after some modifications, shows potential for eliciting and assessing P3, N2, and FRN components, which are important indicators for performance monitoring, in an interactive setting.
事件相关电位（ERP）成分，如P3、N2和FRN，是评估作为一种绩效监测形式的反馈反应的潜在指标。大多数研究使用临床或研究级脑电图（EEG）系统来研究这些ERP成分。可穿戴式脑电图是一种经济实惠的替代方案，有潜力利用ERP来评估反馈反应，但尚未得到充分评估。与反馈相关的ERP在类似于日常计算机使用的交互式环境中也尚未得到科学评估。在本研究中，对一种消费级可穿戴式EEG系统进行了评估，以确定其通过一个交互式软件模块收集与反馈相关的ERP的可行性，该软件模块提供了一个环境，允许用户在程序中自由导航以做出决策。记录硬件总成本不到1500美元，采用了带有菊花链的OpenBCI Cyton板，这是一种售价949美元的消费级EEG系统。17名参与者与一个用于引发与反馈相关的ERP的Oddball范式和一个交互式模块进行了交互。Oddball范式关注的特征是P3和N2成分。交互式模块关注的特征是对正性、中性和两种负性反馈做出反应时引发的P3、N2和FRN成分。FRN通过从负性反馈反应中减去正性反馈反应来计算。Oddball范式的P3和N2成分表明，罕见目标和频繁目标之间存在统计学上的显著差异，这与当前文献一致。在交互式模块中引发的P3和N2成分表明，正性、中性和负性反馈反应之间存在统计学上的显著差异。FRN类型之间以及与通道组和FRN类型的显著交互作用之间没有显著差异。经过一些改进后，OpenBCI Cyton在交互式环境中显示出引发和评估P3、N2和FRN成分的潜力，这些成分是绩效监测的重要指标。
