Applied Cognitive Research Institute of Psychology III
Dresden University of Technology
www.applied-cognition.org
StructureDresden University of Technology
Faculty of Mathematics and Natural Sciences
Department of Psychology
Institute of Psychology I
Institute of Psychology II
Institute of Psychology IIIDirector: Prof. Boris M. Velichkovsky
Applied Cognitive Research Dr. Sebastian PannaschDipl. Math. Constanze LiebersDipl. Psych. Sascha DornhöferDipl. Psych. Markus JoosDipl. Inf. Sascha WeberDipl. Psych. Jens HelmertDipl. Psych. Johannes MarxDipl. Psych. Sven Graupner
Key Research Areas
• Cognitive-affective Science
e.g. Evolutionary Levels of Processing
• Hazard Cognition and Driving Simulation
• Two Visual Systems and their Eye-movements
• Attentional Landscapes and Usability
• VR-based Hypercom with Joint-Attention Support
fixation termination latency
88
0
84
0
80
0
76
0
72
0
68
0
64
0
60
05
60
52
0
48
0
44
0
40
0
36
0
32
02
80
24
0
20
0
16
0
12
0
80
400
8%
6%
4%
2%
0%
distractor
visual
auditory
no
The interval of 80-120ms following the distractor onset shows an underrepresentation of fixations for both modalities
The interval of 80-120ms following the distractor onset shows an underrepresentation of fixations for both modalities
Basic Research about eye-movement control
The Remote Distractor Effect
Distractor Effect
Self-Referential Encoding
Driving simulator studies
Driving simulator studies
200
400
600
800
1000
1200
1400
-4 -3 -2 -1 0 1 2 3 4 5
fix
atio
n d
uratio
n (
ms)
(para)foveal
peripheral
baseline with45% deviations
A
200
400
600
800
1000
1200
1400
-4 -3 -2 -1 0 1 2 3 4 5
(para)foveal
peripheral
baseline with45% deviations
B
(A) Mean fixation durations around the appearance of red light in the cases of successful braking, categorized by eccentricity. (B) Mean fixation durations for the passing through red light (“0” corresponds to the fixation at the moment of switching to red), categorized by eccentricity.
Focal Processing
Ambient Processing
Two visual systems and their Eye-movements
588,00480,00372,00264,00156,0048,00
9
8
7
6
5
4
3
Saccadic amplitude by fixation duration.
Two visual systems and their Eye-movements
Ambient Mode Focal Mode
d-p
rim
e2
1,5
1
,5
d‘ as a function of visual prosessing mode
Attentional Landscapes & Usability
from Velichkovsky, Pomplun & Rieser,1996
Attentional Landscapes & Usability
Equipment
• SIRCA Driving Simulator from ARTEC Group• 3 SR Research Eyelink Systems• 1 LC Technologies binocular Eyegaze System
SIRCA Driving Simulator
Eyetracker
Driving Simulator
Control PC
Eyetracking PC
SR Research Eyelink Systems
Features:
• Accuracy: Typical average bias error .50 degrees.
• Head Based Video Tracking: The System can compensate for head movements.
• Temporal Resolution: 4ms at 250Hz sampling-rate.
LC Technologies binocular Eyegaze System
Features:
• Calibration: Calibration is fully automated, fast, easy and can be saved for later sessions.
• Accuracy: The tracking is highly accurate and tolerant to many variations (e.g. pupil drift) typical average bias error .45 degrees.
• Remote Video Tracking: The System is unobtrusive and undistracting.
• Temporal Resolution: 8,3ms at 120Hz sampling-rate (binocular)