IEEE Solid-States Circuits Magazine - Fall 2022 - 37
Cheng Chen , Joonseok Yang, Joanna Sands, Muhammad A. Khan, and Ada S.Y. Poon
Next-Generation
Wearable Wireless EEG
Recorder
The future
of accessible
neural applications,
from
mental health
monitoring to
a noninvasive
brain-computer
interface
E
1943-0582/22©2022IEEE
EG recording has
been widely used
in a variety of applications,
including
sleep studies,
mental health monitoring, brain-
computer interfaces (BCIs), etc. However,
mainstream clinical recording
systems are still tethered with wet
Digital Object Identifier 10.1109/MSSC.2022.3202738
Date of current version: 11 November 2022
electrodes that require special preparation,
limiting the setup to wellequipped
labs and preventing the
collection of longitudinal data. In
this article, we summarize the special
characteristics of EEG signals and review
key circuit design techniques in
EEG signal acquisition and data telemetry.
With careful system optimization,
a wireless distributed recording
setup is possible for nonintrusive
EEG data collection, which will enable
long-term mental health monitoring
and other important applications.
Introduction
First demonstrated on humans in the
1920s [1], EEG is a test that records
electrical activity in the brain by small
electrodes through signals on the
scalp [2]. The recorded signal is generally
below 100Vn and 40 Hz and has
been shown to reflect the overall brain
activities [2], [3]. The small signal
IEEE SOLID-STATE CIRCUITS MAGAZINE
FALL 2022
37
https://orcid.org/0000-0002-0680-3694
https://orcid.org/0000-0003-2647-6069
IEEE Solid-States Circuits Magazine - Fall 2022
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