<s>
Error-related	B-Algorithm
negativity	I-Algorithm
(	O
ERN	O
)	O
,	O
sometimes	O
referred	O
to	O
as	O
the	O
Ne	O
,	O
is	O
a	O
component	O
of	O
an	O
event-related	B-Algorithm
potential	I-Algorithm
(	O
ERP	O
)	O
.	O
</s>
<s>
ERPs	O
are	O
electrical	O
activity	O
in	O
the	O
brain	O
as	O
measured	O
through	O
electroencephalography	B-Application
(	O
EEG	B-Application
)	O
and	O
time-locked	O
to	O
an	O
external	O
event	O
(	O
e.g.	O
,	O
presentation	O
of	O
a	O
visual	O
stimulus	O
)	O
or	O
a	O
response	O
(	O
e.g.	O
</s>
<s>
The	O
ERN	O
is	O
a	O
sharp	O
negative	O
going	O
signal	O
which	O
begins	O
about	O
the	O
same	O
time	O
an	O
incorrect	O
motor	O
response	O
begins	O
,	O
(	O
response	O
locked	O
event-related	B-Algorithm
potential	I-Algorithm
)	O
,	O
and	O
typically	O
peaks	O
from	O
80	O
to	O
150	O
milliseconds	O
(	O
ms	O
)	O
after	O
the	O
erroneous	O
response	O
begins	O
(	O
or	O
40-80	O
ms	O
after	O
the	O
onset	O
of	O
electromyographic	O
activity	O
)	O
.	O
</s>
<s>
This	O
conclusion	O
is	O
supported	O
by	O
fMRI	B-Algorithm
,	O
and	O
brain	O
lesion	O
research	O
,	O
as	O
well	O
as	O
dipole	O
source	O
modeling	O
.	O
</s>
<s>
A	O
stimulus	O
locked	O
event-related	B-Algorithm
potential	I-Algorithm
is	O
also	O
observed	O
following	O
the	O
presentation	O
of	O
negative	O
feedback	O
stimuli	O
in	O
a	O
cognitive	O
task	O
indicating	O
the	O
outcome	O
of	O
a	O
response	O
,	O
often	O
referred	O
to	O
as	O
the	O
feedback	O
ERN	O
(	O
fERN	O
)	O
.	O
</s>
<s>
Pe	O
is	O
basically	O
the	O
same	O
as	O
the	O
P300	B-Algorithm
wave	O
associated	O
with	O
conscious	O
sensations	O
.	O
</s>
<s>
Some	O
researchers	O
argue	O
that	O
error-related	B-Algorithm
negativity	I-Algorithm
or	O
error-related	O
positivity	O
is	O
in	O
fact	O
,	O
reward-related	O
positivity	O
.	O
</s>
<s>
It	O
has	O
been	O
suggested	O
that	O
ERP	O
data	O
is	O
depicting	O
neural	O
positivity	O
to	O
rewards	O
(	O
aka	O
reward	O
positivity	O
)	O
rather	O
than	O
neural	O
negativity	O
to	O
loss	O
(	O
aka	O
error-related	B-Algorithm
negativity	I-Algorithm
)	O
.	O
</s>
