Electroencephalography of the Trail Making Test

The Trail Making Test (TMT) is a neuropsychological test consisting of Parts A and B, which involve linking numbers and numbers alternating with letters, respectively. The temporal dynamics of TMT-related behavioural and neural changes remain to be characterized. Sixteen healthy young adults underwent TMT performance with electroencephalography (EEG) recording using tablet technology to capture enhanced performance metrics such as the speed of linking movements, and linking and non-linking periods - the time spent executing and preparing movements, respectively. Seconds per link (SPL) was also employed to evaluate TMT performance. A strong effect of TMT Part A and B was found for SPL values, whereas a strong effect of linking and non-linking periods was found in multiple EEG frequency bands, as well as effects consistent with previous studies of TMT-related brain activity performed by functional magnetic resonance imaging. 连线测试（TMT）是一种神经心理学测试，由A部分和B部分组成，分别涉及连线数字和以字母交替的数字。 TMT相关的行为和神经变化的时间动态仍有待表征。 16位健康的年轻人使用平板技术通过脑电图（EEG）记录进行了TMT表现，以获取增强的表现指标，例如连线运动的速度以及连线和非连线时间——执行和准备运动所花费的时间。每连线秒数（SPL）也用于评估TMT表现。发现TMT-A和TMT-B部分对SPL值有很强的影响，而在多个EEG频段中发现了连接和非连接期的强影响，并且这种影响与以前使用功能磁共振成像发现的TMT相关脑活动一致。M.Sc