<s>
A	O
biosignal	B-Algorithm
is	O
any	O
signal	O
in	O
living	O
beings	O
that	O
can	O
be	O
continually	O
measured	O
and	O
monitored	O
.	O
</s>
<s>
The	O
term	O
biosignal	B-Algorithm
is	O
often	O
used	O
to	O
refer	O
to	O
bioelectrical	O
signals	O
,	O
but	O
it	O
may	O
refer	O
to	O
both	O
electrical	O
and	O
non-electrical	O
signals	O
.	O
</s>
<s>
Electrical	O
biosignals	B-Algorithm
,	O
or	O
bioelectrical	O
time	O
signals	O
,	O
usually	O
refers	O
to	O
the	O
change	O
in	O
electric	O
current	O
produced	O
by	O
the	O
sum	O
of	O
an	O
electrical	O
potential	O
difference	O
across	O
a	O
specialized	O
tissue	O
,	O
organ	O
or	O
cell	O
system	O
like	O
the	O
nervous	O
system	O
.	O
</s>
<s>
EEG	B-Application
,	O
ECG	B-Application
,	O
EOG	O
and	O
EMG	O
are	O
measured	O
with	O
a	O
differential	O
amplifier	O
which	O
registers	O
the	O
difference	O
between	O
two	O
electrodes	O
attached	O
to	O
the	O
skin	O
.	O
</s>
<s>
However	O
,	O
the	O
galvanic	O
skin	O
response	O
measures	O
electrical	O
resistance	O
and	O
the	O
Magnetoencephalography	B-Algorithm
(	O
MEG	O
)	O
measures	O
the	O
magnetic	O
field	O
induced	O
by	O
electrical	O
currents	O
(	O
electroencephalogram	B-Application
)	O
of	O
the	O
brain	O
.	O
</s>
<s>
With	O
the	O
development	O
of	O
methods	O
for	O
remote	O
measurement	O
of	O
electric	O
fields	O
using	O
new	O
sensor	O
technology	O
,	O
electric	O
biosignals	B-Algorithm
such	O
as	O
EEG	B-Application
and	O
ECG	B-Application
can	O
be	O
measured	O
without	O
electric	O
contact	O
with	O
the	O
skin	O
.	O
</s>
<s>
Biosignals	B-Algorithm
may	O
also	O
refer	O
to	O
any	O
non-electrical	O
signal	O
that	O
is	O
capable	O
of	O
being	O
monitored	O
from	O
biological	O
beings	O
,	O
such	O
as	O
mechanical	O
signals	O
(	O
e.g.	O
</s>
<s>
In	O
recent	O
years	O
,	O
the	O
use	O
of	O
biosignals	B-Algorithm
has	O
gained	O
interest	O
amongst	O
an	O
international	O
artistic	O
community	O
of	O
performers	O
and	O
composers	O
who	O
use	O
biosignals	B-Algorithm
to	O
produce	O
and	O
control	O
sound	O
.	O
</s>
