<s>
PsyScope	B-Application
is	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
(	O
GUI	B-Application
)	O
software	O
program	O
that	O
allows	O
researchers	O
to	O
design	O
and	O
run	O
psychological	O
experiments	O
.	O
</s>
<s>
It	O
runs	O
on	O
Apple	O
Macintosh	B-Device
computers	O
and	O
was	O
originally	O
designed	O
for	O
use	O
with	O
the	O
Mac	B-Operating_System
OS	I-Operating_System
9	I-Operating_System
platform	O
.	O
</s>
<s>
PsyScope	B-Application
was	O
originally	O
developed	O
by	O
an	O
interdisciplinary	O
team	O
of	O
researchers	O
at	O
Carnegie	O
Mellon	O
University	O
,	O
including	O
Jonathan	O
Cohen	O
,	O
Matthew	O
Flatt	O
,	O
Brian	O
MacWhinney	O
,	O
and	O
Jefferson	O
Provost	O
.	O
</s>
<s>
It	O
has	O
been	O
ported	O
to	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
by	O
a	O
group	O
of	O
researchers	O
and	O
programmers	O
coordinated	O
by	O
researchers	O
at	O
SISSA	O
,	O
Italy	O
and	O
the	O
Pompeu	O
Fabra	O
University	O
,	O
Spain	O
.	O
</s>
<s>
The	O
program	O
and	O
its	O
code	O
are	O
freely	O
available	O
under	O
the	O
GNU	B-License
GPL	I-License
license	I-License
.	O
</s>
<s>
It	O
runs	O
under	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
from	O
version	O
10.7	O
onward	O
.	O
</s>
<s>
With	O
respect	O
to	O
its	O
Mac	B-Operating_System
OS	I-Operating_System
9	I-Operating_System
incarnation	O
,	O
PsyScope	B-Application
X	O
has	O
a	O
much	O
more	O
complete	O
control	O
of	O
movies	O
and	O
sounds	O
,	O
can	O
interact	O
with	O
the	O
underlying	O
Unix	B-Application
environment	O
,	O
and	O
allows	O
researchers	O
to	O
design	O
programs	O
that	O
use	O
several	O
external	O
devices	O
,	O
such	O
as	O
response	O
devices	O
to	O
record	O
participants	O
 '	O
responses	O
,	O
or	O
Evoked	B-Algorithm
potential	I-Algorithm
and	O
eye	O
tracking	O
recording	O
devices	O
.	O
</s>
<s>
However	O
,	O
many	O
researchers	O
in	O
several	O
well	O
respected	O
universities	O
around	O
the	O
world	O
use	O
PsyScope	B-Application
X	O
to	O
generate	O
and	O
run	O
psychology	O
and	O
neuropsychology	O
experiments	O
.	O
</s>
<s>
Users	O
of	O
PsyScope	B-Application
X	O
can	O
share	O
experiments	O
,	O
tips	O
,	O
and	O
ideas	O
via	O
message	O
boards	O
dedicated	O
to	O
the	O
software	O
.	O
</s>
