IEEE Consumer Electronics Magazine - July 2016 - 55

How Should the
State of the Brain
Be Described?

By Narisa N.Y. Chu

A call to standardize descriptions of brain
states for data collection and research.

T

he ieee Brain initiative and the Consumer
Technology Association (CTA, formerly the Consumer electronics Association) promote brain research,
development, and commercialization. CTA's recent
standardization of electroencephalogram (eeG) signal data interoperability facilitates brain technology developments in the internet environment for consumer-friendly
applications. emerging brain-computer interface (BCi) consumer products have accelerated new tool development to be
blended seamlessly in rehabilitation, education, and entertainment. it has been observed that, while some of these
developments flourish via collaboration, others tend to proliferate. To continue the recent commercialization advancement
in BCi headsets, it behooves the industry to standardize eeG
brain signal collection to form an open databank to allow
data exchange via the internet. Specific issues are raised with
respect to the fundamental harmonization of brain states and
its linkage to eeG signals for big data analytics and internet
of Things connectivity. Replacing proprietary formats with
standard eeG data is the purpose of this article, and the progress and challenges of the ongoing standardization effort
within the CTA are discussed.

BACKGROUND
CTA's Standards Committee R6 SC4 WG3 on Health Care
began its specifications for eeG data interoperability on 16
September 2015. Nima Bigdely-Shamlo, the committee chair,
and Christian Kothe of Qusp brought in XDF open-source
software interface specifications as the starting documentation for #2060 in a series of standards as follows:
▼ #2057, Local Transmission-Lab Streaming Layer (LSL)
▼ #2058, event Description-Hierarchical event Descriptor
(HeD)
▼ #2059, User Brain State Description
▼ #2060, File Storage-extended Data Format (XDF)
Digital Object Identifier 10.1109/MCE.2016.2556838
Date of publication: 10 August 2016

2162-2248/16©2016IEEE

image licensed by graphic stock

#2061, Group-Level Metadata encapsulation-eeG Study
Schema (eSS).
The structure and the scope of eeG data exchange network
flow are shown in Figure 1. Recommended standards, designated in red in the figure, are mostly available from open
source. These standards facilitate the data flow architecture
not only for BCi local access and processing, but throughout
the internet with big data analytics prospects for global processing. A presentation made by Bigdely-Shamlo, on
5 November 2015, reported that initial brain research led by
the Army Research Laboratory had accumulated 855 GB of
data from 756 recording sessions (16 studies) using

▼

July 2016

^

IEEE Consumer Electronics Magazine

55



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