PMID- 33018689
OWN - NLM
STAT- MEDLINE
DCOM- 20201023
LR  - 20201023
IS  - 2694-0604 (Electronic)
IS  - 2375-7477 (Linking)
VI  - 2020
DP  - 2020 Jul
TI  - Task-irrelevant Auditory Event-related Potentials as Mental Workload Indicators: 
      A Between-task Comparison Study().
PG  - 3216-3219
LID - 10.1109/EMBC44109.2020.9175957 [doi]
AB  - Real-time monitoring of mental workload (MWL) is a crucial step to build 
      closed-loop adaptive aiding systems for human-machine systems. MWL estimators 
      based on spontaneous electroencephalography (EEG) and event-related potentials 
      (ERPs) have shown great potentials to achieve this goal. However, the previous 
      studies show that the between-task robustness of these EEG/ERP-based MWL 
      estimators is still an unsolved intractable question. This study attempts to 
      examine the task-irrelevant auditory event-related potentials (tir-aERPs) as MWL 
      indicators. A working memory task (verbal n-back) and a visuo-motor task 
      (multi-attribute task battery, MATB), both with two difficulty levels (easy and 
      hard), were used in the experiment, along with task-irrelevant auditory probes 
      that did not need any response from the participants. EEG was recorded from ten 
      participants when they were performing the tasks. The tir-aERPs elicited by the 
      auditory probes were extracted and analyzed. The results show that the amplitudes 
      of N1, early P3a (eP3a) and the late reorienting negativity (RON) significantly 
      decreased with the increasing MWL in both n-back and MATB. Task type has no 
      obvious influence on the amplitudes and topological layout of the MWL-sensitive 
      tir-aERPs features. These results suggest that the tir-aERPs are potentially more 
      constant MWL indicators across very different task types. Therefore, the 
      tir-aERPs should be taken into consideration in future task-independent MWL 
      monitoring studies.
FAU - Xu, Jinzhao
AU  - Xu J
FAU - Ke, Yufeng
AU  - Ke Y
FAU - Liu, Shuang
AU  - Liu S
FAU - Song, Xizi
AU  - Song X
FAU - Xu, Cheng
AU  - Xu C
FAU - Zhou, Guchuan
AU  - Zhou G
FAU - Ming, Dong
AU  - Ming D
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Annu Int Conf IEEE Eng Med Biol Soc
JT  - Annual International Conference of the IEEE Engineering in Medicine and Biology 
      Society. IEEE Engineering in Medicine and Biology Society. Annual International 
      Conference
JID - 101763872
SB  - IM
MH  - *Electroencephalography
MH  - *Evoked Potentials
MH  - Humans
MH  - Memory, Short-Term
MH  - Workload
EDAT- 2020/10/07 06:00
MHDA- 2020/10/24 06:00
CRDT- 2020/10/06 01:04
PHST- 2020/10/06 01:04 [entrez]
PHST- 2020/10/07 06:00 [pubmed]
PHST- 2020/10/24 06:00 [medline]
AID - 10.1109/EMBC44109.2020.9175957 [doi]
PST - ppublish
SO  - Annu Int Conf IEEE Eng Med Biol Soc. 2020 Jul;2020:3216-3219. doi: 
      10.1109/EMBC44109.2020.9175957.