First, the control of eyemovements is not contralaterally organized (The
oculomotor nuclei are in the brainstem) and so it is very difficult to see
how the direction of eyemovements would be diagnostic of which hemisphere
was more active at the moment. Second, the idea that the visual cortex is
localized in the left hemisphere is (to put it mildly) silly and wrong. As
for the assertion about the location of 'creative centers' in the right
hemisphere, we can't discuss localization of something that isn't known to
exist, so the students question was based on a false understanding of the
brain. (I know there is a visual cortex, but haven't read anything in my
neuroscience books about 'creative cortex').
Attempts at lie detection are generally based on signs of autonomic
activity
like skin conductance, heart rate, respiration. If the eyes revealed
anything at all in this vein it would be likely in terms of changes in
reflexive blinking and pupillary diameter. However as far as I know these
are not included in polygraph tests.
=========================================
Harvey G. Shulman ([EMAIL PROTECTED])
Department of Psychology
214 Lazenby Hall
The Ohio State University
ph 614 292-2759 fax 614 292-5601
>
> ----- Original Message -----
> From: "Helen C. Harton" <[EMAIL PROTECTED]>
> To: "TIPS" <[EMAIL PROTECTED]>
> Sent: Tuesday, February 08, 2000 11:56 AM
> Subject: student question about lying
>
>
> > Hi all.
> >
> > After we discussed ways of detecting deception in class, one of my
> students
> > asked me the question below. Does anyone know if this is true or a myth?
> > (Personally I've never heard of it). Thanks for any responses.
> >
> > I have a question concerning how you can tell if people are lying
or
> fact
> > vs myth ways that you can tell. Would it be true that if you asked
> someone a
> > question about something visual and their eyes went up and to the left,
> > acessing the visual cortex of the brain, then they would be telling the
> > truth. And if their eyes went up and to the right, acessing the
creative
> > centers of the brain, then they would be lying?
> >
> > Helen
> >
> >
> > Helen C. Harton
> > Department of Psychology
> > University of Northern Iowa
> > Cedar Falls, IA 50614-0505
> >
>
