A Study of Evoked Potentials From Ear-EEG

作者：Kidmose Preben^*; Looney David; Ungstrup Michael; Rank Mike Lind; Mandic Danilo P

来源：IEEE Transactions on Biomedical Engineering, 2013, 60(10): 2824-2830.

DOI：10.1109/TBME.2013.2264956

• Auditory steady-state response (ASSR)
• ear-EEG
• event-related potentials
• evoked potentials (EP)
• steady-state visual evoked potentials (SSVEP)

A method for brain monitoring based on measuring the electroencephalogram (EEG) from electrodes placed in-the-ear (ear-EEG) was recently proposed. The objective of this study is to further characterize the ear-EEG and perform a rigorous comparison against conventional on-scalp EEG. This is achieved for both auditory and visual evoked responses, over steady-state and transient paradigms, and across a population of subjects. The respective steady-state responses are evaluated in terms of signal-to-noise ratio and statistical significance, while the qualitative analysis of the transient responses is performed by considering grand averaged event-related potential (ERP) waveforms. The outcomes of this study demonstrate conclusively that the ear-EEG signals, in terms of the signal-to-noise ratio, are on par with conventional EEG recorded from electrodes placed over the temporal region.

• 出版日期2013-10