<s>
Evoked	B-Algorithm
activity	I-Algorithm
is	O
brain	B-Application
activity	I-Application
that	O
is	O
the	O
result	O
of	O
a	O
task	O
,	O
sensory	O
input	O
or	O
motor	O
output	O
.	O
</s>
<s>
It	O
is	O
opposed	O
to	O
spontaneous	B-Algorithm
brain	I-Algorithm
activity	I-Algorithm
during	O
the	O
absence	O
of	O
any	O
explicit	O
task	O
.	O
</s>
<s>
In	O
electroencephalography	B-Application
(	O
EEG	B-Application
)	O
research	O
,	O
evoked	B-Algorithm
activity	I-Algorithm
or	O
evoked	B-Algorithm
responses	I-Algorithm
specifically	O
refers	O
to	O
activity	O
that	O
is	O
phase-locked	B-Algorithm
to	O
the	O
stimulus	O
onset	O
and	O
is	O
opposed	O
to	O
induced	B-Algorithm
activity	I-Algorithm
,	O
which	O
is	O
a	O
stimulus-related	O
change	O
in	O
(	O
the	O
amplitude	O
of	O
)	O
oscillatory	B-Algorithm
activity	I-Algorithm
.	O
</s>
