Laboratory of Psychophysics LPSY
Home
In the Laboratory of Psychophysics, we investigate visual
information
processing in human observers with psychophysical methods,
TMS, EEG,
and mathematical modelling.
Main topics of research are: feature integration, contextual
modulation,
time course of information processing, and perceptual learning. In
clinical
studies, deficits of visual information processing are investigated in
schizophrenic patients.
Non-retinotopic motion.
A group of three black disks is moving back
and forth. On the center disk, a white dot appears to move on a clock-wise
trajectory. However, this trajectoy only exists in a coordinate system
which moves with the group, i.e. in a non-retinotopic frame of reference
(assuming no eye movements are taking place).
This becomes immediately evident when the outer two disks (with respect to the retinotopic frame of reference) are covered. Now, the white dots are perceived retinotopically, in which case they move on a up-down and right- left trajectory, respectively.
Boi, Öğmen, Krummenacher, Otto, Herzog (2009):A (fascinating) litmus test for human retino- vs. non-retinotopic processing.
This becomes immediately evident when the outer two disks (with respect to the retinotopic frame of reference) are covered. Now, the white dots are perceived retinotopically, in which case they move on a up-down and right- left trajectory, respectively.
Boi, Öğmen, Krummenacher, Otto, Herzog (2009):A (fascinating) litmus test for human retino- vs. non-retinotopic processing.
LPSY contacts
| Prof. Michael Herzog | |
| office | SV-2807 |
| phone | +41 21 693 9646 |
| fax | +41 21 693 9645 +41 21 693 1749 (lab) |
Secretary
| Laure Dayer | |
| office | SV-2805 |
| phone | +41 21 693 1812 |
| fax | +41 21 693 5350 |
Address
EPFL SV BMI LPSY
Station 19
CH-1015 Lausanne
SWITZERLAND