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)