<s>
SAC	B-Architecture
(	O
source	O
of	O
activation	O
confusion	O
)	O
is	O
a	O
computational	O
model	O
of	O
memory	O
encoding	O
and	O
retrieval	O
.	O
</s>
<s>
SAC	B-Architecture
specifies	O
a	O
memory	O
representation	O
consisting	O
of	O
a	O
network	O
of	O
both	O
semantic	O
(	O
concept	O
)	O
and	O
perceptual	O
nodes	O
(	O
such	O
as	O
font	O
)	O
and	O
associated	O
episodic	O
(	O
context	O
)	O
nodes	O
.	O
</s>
<s>
Similar	O
to	O
her	O
husband	O
's	O
(	O
John	O
Anderson	O
)	O
model	O
,	O
ACT-R	B-Language
,	O
the	O
node	O
activations	O
are	O
governed	O
by	O
a	O
set	O
of	O
common	O
computational	O
principles	O
such	O
as	O
spreading	O
activation	O
and	O
the	O
strengthening	O
and	O
decay	O
of	O
activation	O
.	O
</s>
<s>
However	O
,	O
a	O
unique	O
feature	O
of	O
the	O
SAC	B-Architecture
model	O
are	O
episode	O
nodes	O
,	O
which	O
are	O
newly	O
formed	O
memory	O
traces	O
that	O
binds	O
the	O
concepts	O
involved	O
with	O
the	O
current	O
experiential	O
context	O
.	O
</s>
<s>
A	O
recent	O
addition	O
to	O
SAC	B-Architecture
are	O
assumptions	O
governing	O
the	O
probability	O
of	O
forming	O
an	O
association	O
during	O
encoding	O
.	O
</s>
<s>
SAC	B-Architecture
is	O
considered	O
among	O
a	O
class	O
of	O
dual-process	O
models	O
of	O
memory	O
,	O
since	O
recognition	O
involves	O
two	O
processes	O
:	O
a	O
general	O
familiarity	O
process	O
based	O
on	O
the	O
activation	O
of	O
semantic	O
(	O
concept	O
)	O
nodes	O
and	O
a	O
more	O
specific	O
recollection	O
process	O
based	O
on	O
the	O
activation	O
of	O
episodic	O
(	O
context	O
)	O
nodes	O
.	O
</s>
<s>
This	O
feature	O
has	O
allowed	O
SAC	B-Architecture
to	O
model	O
a	O
variety	O
of	O
memory	O
phenomena	O
,	O
such	O
as	O
meta-cognitive	O
(	O
rapid	O
)	O
feeling	O
of	O
knowing	O
judgments	O
,	O
remember-know	O
judgments	O
,	O
the	O
word	O
frequency	O
mirror	O
effect	O
,	O
age-related	O
memory	O
loss	O
perceptual	O
fluency	O
,	O
paired	O
associate	O
recognition	O
and	O
cued	O
recall	O
,	O
as	O
well	O
as	O
account	O
for	O
implicit	O
and	O
explicit	O
memory	O
tasks	O
without	O
positing	O
an	O
unconscious	O
memory	O
system	O
for	O
priming	O
.	O
</s>
