<s>
In	O
pharmacokinetics	O
and	O
receptor-ligand	O
kinetics	O
the	O
binding	B-Algorithm
potential	I-Algorithm
(	O
BP	O
)	O
is	O
a	O
combined	O
measure	O
of	O
the	O
density	O
of	O
"	O
available	O
"	O
neuroreceptors	O
and	O
the	O
affinity	O
of	O
a	O
drug	O
to	O
that	O
neuroreceptor	O
.	O
</s>
<s>
The	O
binding	B-Algorithm
potential	I-Algorithm
is	O
then	O
the	O
ratio	O
ligand-receptor	O
complex	O
to	O
free	O
ligand	O
at	O
equilibrium	O
and	O
in	O
the	O
limit	O
of	O
L	O
tending	O
to	O
0	O
,	O
and	O
is	O
given	O
symbol	O
BP	O
:	O
</s>
<s>
BP	O
is	O
a	O
pivotal	O
measure	O
in	O
the	O
use	O
of	O
positron	B-Application
emission	I-Application
tomography	I-Application
(	O
PET	O
)	O
to	O
measure	O
the	O
density	O
of	O
"	O
available	O
"	O
receptors	O
,	O
e.g.	O
</s>
<s>
to	O
assess	O
the	O
occupancy	O
by	O
drugs	O
or	O
to	O
characterize	O
neuropsychiatric	O
diseases	O
(	O
yet	O
,	O
one	O
should	O
keep	O
in	O
mind	O
that	O
binding	B-Algorithm
potential	I-Algorithm
is	O
a	O
combined	O
measure	O
that	O
depends	O
on	O
receptor	O
density	O
as	O
well	O
as	O
on	O
affinity	O
)	O
.	O
</s>
