Contact

Lewis Chuang

Address: Spemannstr. 38
72076 Tübingen
Room number: 112
Phone: +49 7071 601 608
Fax: +49 7071 601 616
E-Mail: lewis.chuang

 

Picture of Chuang, Lewis

Lewis Chuang

Position: Project Leader  Unit: Bülthoff

Research

A process cannot be understood by stopping it. Understanding must
move with the flow of the process, must join and flow with it. - Frank Herbert

My research group, Cognition and Control for Human-Machine Systems (link), focuses on the human factors of closed-loop control, and their underlying psychophysiological bases. In particular, I am interested in how we seek out and process task-relevant information whilst controlling machine systems.

We interact actively with dynamic visual environments. For example, we move our gaze across our surroundings as well as manually manipulate objects, in order to access task-relevant information. Moreover, we are able to allocate limited attention resources to relevant tasks, in spite of workload and anxiety levels.


My research involves understanding how humans seek out and process information, in order to operate in control environments. To do so, I employ experimental setups that allow human participants to interact with their environments, as they are accustomed to in the real world. To this end, I employ non-obtrusive measurement techniques, such as eye- and body-

tracking, and EEG, ECG and SCA, that allows the human behavior to be observed without disrupting performance itself.


Understanding how humans perform in a natural and unrestrained environment can inform the development of human-machine interfaces, allowing for better integration and faster adoption.

 

Examples of Human-Machine Interactions



Current lab members (link)

Menja Scheer: Mental workload during closed-loop control

Evangelia-Regkina Symeonidou: Haptic feedback during closed-loop control

Christiane Glatz: The influence of auditory warning cues during steering

Nina Flad: Visual information sampling with simultaneous EEG and eyetracking

Monika Marsching: Eye-movements during flight training

Katrin Kunz: Driving simulation

Marius Klug: Mobile EEG

Jonas Ditz: Mobile EEG

 

Alumnus

Silke Wittkowski: The influence of environmental sounds during steering

Jonas Walter: The influence of field-of-view in visuomotor training

Hans-Joachim Bieg (Bosch GmbH):Mid-level eye movements

Björn Browatzki: Methods for mobile gaze tracking

Anne Geuzebroerk: Attentional tunneling during closed-loop control

Riya Paul: EEG signal processing in a moving-base simulator

Jon Allsop: Influence of anxiety on eye-movement planning

Associated projects and funding

SFB-TRR161: Quantitative Methods for Visual Computing (2015-2019)


BW-FIT: Information at your fingertips (2007–2011)

European Union 7th Framework Programme: myCopter

I supervise a research group that investigates how humans seek out and process task-relevant information for the effective control of machine systems, such as vehicles. Machines extend our physical capacity to sense and interact with our environments. For example, collision avoidance systems in an aircraft allow the pilot to be aware of fast moving traffic before they are even within range of human sight. Meanwhile, the pilot selectively relies on information provided by the system, to determine and execute the appropriate combination of actions, necessary for effectively maneuvering of the aircraft.

This continuous interaction between man and machine comprise a closed loop system. Information is constantly exchanged between man and machine, which is subsequently processed and acted on according to their respective cognitive and control processes. Our group employs eye-tracking, motion capture and electroencephalography to define the capacity of a human operator to interact in tandem with a responsive machine system. In particular, vehicle models with control dynamics have been well-defined and engineered for their intended purpose. We believe that doing so will extend our current understanding of attentional processes and motor control. In addition, we are motivated to apply our findings to the development of novel and more effective interfaces for information visualization and shared control.

Main research areas

PHYSIOLOGICAL ESTIMATIONS OF PERCEPTUAL-MOTOR WORKLOAD

The goal of this project is to extract physiological features (e.g., EEG) that can reliably index the amount of workload that the operator is experiencing in the domain of perceptual-motor control. Research into EEG markers of mental workload have tended to be focused on aspects such as sustained attention or working memory. Here, we are motivated to estimate perceptual-motor fatigue of the operator before potentially fatal decrements in performance occur.

 

Scheer M Person, Bülthoff HH Person and Chuang LL Person (September-2014) Is the novelty-P3 suitable for indexing mental workload in steering tasks? 12th Biannual Conference of the German Cognitive Science Society (KogWis 2014), Springer, Berlin, Germany, S135-S136.


Flad N Person, Nieuwenhuizen FM Person, Bülthoff HH Person and Chuang LL Person (June-2014) System Delay in Flight Simulators Impairs Performance and Increases Physiological Workload In: Engineering Psychology and Cognitive Ergonomics, 11th International Conference on Engineering Psychology and Cognitive Ergonomics (EPCE 2014), Springer, Berlin, Germany, 3-11.


DETECTION AND RECOGNITION DURING STEERING

High perceptual motor demands can reduce our capacity to attend to secondary tasks. For example, we could fail to notice the sudden appearance of a crossing pedestrian, especially under severe driving conditions. In this line of research, we seek to understand how our capacity for detecting and recognizing peripheral events vary with increasing demands in the control task (e.g., instability).

 

Glatz C Person, Bülthoff HH Person and Chuang LL Person (September-2014): Looming auditory warnings initiate earlier event-related potentials in a manual steering task, 12th Biannual Conference of the German Cognitive Science Society (KogWis 2014), Tübingen, Germany, Cognitive Processing, 15(Supplement 1) S38.


Bieg H-J Person, Bresciani J-P Person, Bülthoff HH Person and Chuang LL Person (September-2012) Looking for Discriminating Is Different from Looking for Looking's Sake PLoS ONE 7(9) 1-9.


GAZE CONTROL FOR RELEVANT INFORMATION RETRIEVAL

We move our eyes to actively select and process task-relevant information in real-time. By monitoring how eye-movements are coordinated during control maneuvers, we are able to determine aspects of the visual scene that support the operator’s control capabilities. Our research in this area has two emphases. The first involves developing algorithms for estimating, filtering and analyzing natural gaze in real-time and under challenging scenarios (e.g., cockpit environment). The second targets a fundamental understanding of how eye-movements are coordinated so as to handle shifts in task priorities.

 

Bonev B , Chuang LL Person and Escolano F (May-2013) How do image complexity, task demands and looking biases influence human gaze behavior? Pattern Recognition Letters 34(7) 723–730.


Bieg H-J Person, Bresciani J-P Person, Bülthoff HH Person and Chuang LL Person (October-2013) Saccade reaction time asymmetries during task-switching in pursuit tracking Experimental Brain Research 230(3) 271-281.


ROBUST EEG MEASUREMENTS IN MOBILE WORKSPACES

EEG signals can suffer from artefacts due to electromagnetic noise or muscle activity. These noise sources can be amplified in settings that involve a heavy use of electrical equipment and voluntary user movements, such as moving-base flight simulators. Here, we seek to enable EEG recordings in such demanding workspaces by developing robust measurement paradigms and filter algorithms.

 

Browatzki B Person, Bülthoff HH Person and Chuang LL Person (April-2014) A comparison of geometric- and regression-based mobile gaze-tracking Frontiers in Human Neuroscience 8(200) 1-12.

Lewis Chuang is a project leader at the Max Planck Institute for Biological Cybernetics, Tübingen (for details, see link). His interests include human factors, eye-movement behavior, psychophysiological workload and the design of human-machine interfaces.

 

He obtained his BSc. in Experimental Psychology from the University of York and his MPhil. from the University of Manchester with a dissertation on "Face Detection: Is visual-spatial attention selective for faces?" His doctoral thesis — Recognizing objects from dynamic visual experiences — addressed the respective contributions of non-rigid and rigid motion to learning novel objects in our dynamic environments, such as during object manipulation. For this work, he was awarded a PhD in Behavior Neuroscience by the Eberhard-Karl University of Tübingen.

 

A full C.V. is available upon request.

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Show abstracts

Books (1):

LL Chuang: Recognizing Objects from Dynamic Visual Experiences, 162, Logos-Verlag, Berlin, Germany, (2011). ISBN: 978-3-8325-2842-3, Series: MPI Series in Biological Cybernetics ; 28

Proceedings (1):

Burch M, Chuang L, Fischer B, Schmidt A and Weiskopf D: Eye Tracking and Visualization: Foundations, Techniques, and Applications: ETVIS 2015, First Workshop on Eye Tracking and Visualization (ETVIS 2015), -, Springer, Berlin, Germany, (September-2016).in press
978-3-319-47024-5

Articles (12):

Scheer M, Bülthoff HH and Chuang LL (March-2016) Steering demands diminish the early-P3, late-P3 and RON components of the event-related potential of task-irrelevant environmental sounds Frontiers in Human Neuroscience 10(73) 1-15.
Bieg H-J, Chuang LL, Bülthoff HH and Bresciani J-P (September-2015) Asymmetric saccade reaction times to smooth pursuit Experimental Brain Research 233(9) 2527-2538.
Browatzki B, Bülthoff HH and Chuang LL (April-2014) A comparison of geometric- and regression-based mobile gaze-tracking Frontiers in Human Neuroscience 8(200) 1-12.
Bieg H-J, Bresciani J-P, Bülthoff HH and Chuang LL (October-2013) Saccade reaction time asymmetries during task-switching in pursuit tracking Experimental Brain Research 230(3) 271-281.
Bonev B, Chuang LL and Escolano F (May-2013) How do image complexity, task demands and looking biases influence human gaze behavior? Pattern Recognition Letters 34(7) 723–730.
Son HI, Franchi A, Chuang LL, Kim J, Bülthoff HH and Robuffo Giordano P (April-2013) Human-Centered Design and Evaluation of Haptic Cueing for Teleoperation of Multiple Mobile Robots IEEE Transactions on Cybernetics 43(2) 597-609.
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Bieg H-J, Bresciani J-P, Bülthoff HH and Chuang LL (September-2012) Looking for Discriminating Is Different from Looking for Looking's Sake PLoS ONE 7(9) 1-9.
Chuang LL, Vuong QC and Bülthoff HH (May-2012) Learned non-rigid object motion is a view-invariant cue to recognizing novel objects Frontiers in Computational Neuroscience 6(26) 1-8.
Schultz J, Chuang L and Vuong QC (June-2008) A dynamic object-processing network: Metric shape discrimination of dynamic objects by activation of occipito-temporal, parietal and frontal cortex Cerebral Cortex 18(6) 1302-1313.
Lander K, Chuang L and Wickham L (May-2006) Recognising face identity from natural and morphed smiles Quarterly Journal of Experimental Psychology 59(5) 801-808.
Chuang L, Vuong QC, Thornton IM and Bülthoff HH (May-2006) Recognising novel deforming objects Visual Cognition 14(1) 85-88.
Lander K and Chuang L (April-2005) Why are moving faces easier to recognize? Visual Cognition 12(3) 429-442.
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Conference papers (29):

McCall R, Baumann M, Politis I, Borojeni SS, Alvarez I, Mirnig A, Meschtcherjakov A, Tscheligi M, Chuang L and Terken J (October-24-2016) 1st Workshop on Situational Awareness in Semi-Automated Vehicles, 8th International Conference on Automotive User Interfaces and Interactive Vehicular Applications (Automotive'UI 16), 1-4.
Borojeni SS, Chuang L, Löcken A, Glatz C and Boll S (October-24-2016) Tutorial on Design and Evaluation Methods for Attention Directing Cues, 8th International Conference on Automotive User Interfaces and Interactive Vehicular Applications (Automotive'UI 16), 1-3.
Flad N, Ditz JC, Schmidt A, Bülthoff HH and Chuang LL (October-2016) Data-driven approaches to unrestricted gaze-tracking benefit from saccade filtering, Second Workshop on Eye Tracking and Visualization (ETVIS 2016), -. accepted
Allsop J, Gray R, Bülthoff HH and Chuang L (October-2016) Effects of Anxiety and Cognitive Load on Instrument Scanning Behavior in a Flight Simulation, Second Workshop on Eye Tracking and Visualization (ETVIS 2016), -. accepted
Flad N, Fomina T, Bülthoff HH and Chuang LL (September-2016) Unsupervised clustering of EOG as a viable substitute for optical eye-tracking In: Eye Tracking and Visualization: Foundations, Techniques, and Applications: ETVIS 2015, , First Workshop on Eye Tracking and Visualization (ETVIS 2015), Springer, Berlin, Germany, -. in press
Glatz C, Bülthoff HH and Chuang LL (September-1-2015) Attention Enhancement During Steering Through Auditory Warning Signals, Workshop on Adaptive Ambient In-Vehicle Displays and Interactions In conjunction with AutomotiveUI 2015 (WAADI'15), 1-5.
Chuang LL and Bülthoff HH (September-1-2015) Towards a Better Understanding of Gaze Behavior in the Automobile, Workshop on Practical Experiences in Measuring and Modeling Drivers and Driver-Vehicle Interactions In conjunction with AutomotiveUI 2015, 1-4.
Löcken A, Borojeni SS, Müller H, Chuang L, Schroeter R, Alvarez I and Meijering V (September-1-2015) Workshop on Adaptive Ambient In-Vehicle Displays and Interactions, Workshop on Adaptive Ambient In-Vehicle Displays and Interactions In conjunction with AutomotiveUI 2015 (WAADI'15), 1-4.
Riener A, Alvarez I, Jeon MP, Chuang L, Ju W, Pfleging B and Chiesa M (September-1-2015) Workshop on Practical Experiences in Measuring and Modeling Drivers and Driver-Vehicle Interactions, Workshop on Practical Experiences in Measuring and Modeling Drivers and Driver-Vehicle Interactions In conjunction with AutomotiveUI 2015, 1-4.
Scheer M, Bülthoff HH and Chuang LL (September-2015) On the Cognitive Demands of Different Controller Dynamics: A within-subject P300 Analysis, Human Factors and Ergonomics Society Annual Meeting (HFES 2015), Sage, London, UK, 1042-1046.
Glatz C, Bülthoff HH and Chuang LL (September-2015) Warning Signals With Rising Profiles Increase Arousal, Human Factors and Ergonomics Society Annual Meeting (HFES 2015), Sage, London, UK, 1011-1011.
Flad N, Bülthoff HH and Chuang LL (August-2015) Combined use of eye-tracking and EEG to understand visual information processing, International Summer School on Visual Computing (VCSS 2015), Fraunhofer Verlag, Stuttgart, Germany, 115-124.
Chuang LL (July-2015) Error Visualization and Information-Seeking Behavior for Air-Vehicle Control In: Foundations of Augmented Cognition, , 9th International Conference on Augmented Cognition (AC 2015), held as part of HCI International 2015, Springer International Publishing, Cham, Switzerland, 3-11, Series: Lecture Notes in Artificial Intelligence ; 9183.
Scheer M, Bülthoff HH and Chuang LL (September-2014) Is the novelty-P3 suitable for indexing mental workload in steering tasks?, 12th Biannual Conference of the German Cognitive Science Society (KogWis 2014), Springer, Berlin, Germany, Cognitive Processing, 15(Supplement 1), S135-S137.
Flad N, Nieuwenhuizen FM, Bülthoff HH and Chuang LL (June-2014) System Delay in Flight Simulators Impairs Performance and Increases Physiological Workload In: Engineering Psychology and Cognitive Ergonomics, , 11th International Conference on Engineering Psychology and Cognitive Ergonomics (EPCE 2014), Springer, Berlin, Germany, 3-11, Series: Lecture Notes in Artificial Intelligence ; 8532.
Scheer M, Nieuwenhuizen FM, Bülthoff HH and Chuang LL (June-2014) The Influence of Visualization on Control Performance in a Flight Simulator In: Engineering Psychology and Cognitive Ergonomics, , 11th International Conference on Engineering Psychology and Cognitive Ergonomics (EPCE 2014), held as Part of HCI International 2014, Springer, Berlin, Germany, 202-211, Series: Lecture Notes in Artificial Intelligence ; 8532.
Nieuwenhuizen FM, Chuang LL and Bülthoff HH (November-2013) myCopter: Enabling Technologies for Personal Aerial Transportation Systems: Project status after 2.5 years, 5. Internationale HELI World Konferenz "HELICOPTER Technologies", "HELICOPTER Operations" at the International Aerospace Supply Fair AIRTEC 2013, Airtec GmbH, Frankfurt a. Main, Germany, 1-3.
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Chuang LL, Nieuwenhuizen FM and Bülftoff HH (July-2013) A Fixed-Based Flight Simulator Study: The Interdependence of Flight Control Performance and Gaze Efficiency In: Engineering Psychology and Cognitive Ergonomics: Applications and Services, , 10th International Conference EPCE 2013, Held as Part of HCI International 2013, Springer, Berlin, Germany, 95-104, Series: Lecture Notes in Computer Science ; 8020.
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Bieg H-J, Bülthoff HH and Chuang LL (July-2013) Attentional Biases during Steering Behavior In: Digital Human Modeling and Applications in Health, Safety, Ergonomics, and Risk Management: Healthcare and Safety of the Environment and Transport, , 4th International Conference DHM 2013, Held as Part of HCI International 2013, Springer, Berlin, Germany, 21-27, Series: Lecture Notes in Computer Science ; 8020.
Bieg H-J, Bülthoff HH and Chuang LL (August-2012) Einfluss von Ablenkung und Augenbewegungen auf Steuerungsaufgaben In: Mensch & Computer 2012: 12. fachübergreifende Konferenz für interaktive und kooperative Medien, , Mensch & Computer (M&C), Oldenbourg, München, Germany, 341-344.
Son HI, Chuang L, Kim J and Bülthoff HH (October-2011) Haptic Feedback Cues Can Improve Human Perceptual Awareness in Multi-Robots Teleoperation, 11th International Conference on Control, Automations and Systems (ICCAS 2011), IEEE, Piscataway, NJ, USA, 1323-1328.
Son HI, Chuang LL, Franchi A, Kim J, Lee D, Lee S-W, Bülthoff HH and Robuffo Giordano P (September-2011) Measuring an Operator's Maneuverability Performance in the Haptic Teleoperation of Multiple Robots, IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2011), IEEE, Piscatawy, NJ, USA, 3039-3046.
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Son HI, Kim J, Chuang LL, Franchi A, Robuffo Giordano P, Lee D and Bülthoff HH (June-2011) An Evaluation of Haptic Cues on the Tele-Operator's Perceptual Awareness of Multiple UAVs' Environments, IEEE 2011 World Haptics Conference (WHC 2011), IEEE, Piscataway, NJ, USA, 149-154.
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Bülthoff HH and Chuang LL (September-2010) Towards Artificial Systems: What Can We Learn from Human Perception? In: PRICAI 2010: Trends in Artificial Intelligence, , 11th Pacific Rim International Conference on Artificial Intelligence, Springer, Berlin, Germany, 1-3, Series: Lecture Notes in Computer Science ; 6230.
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Chuang LL, Bieg H-J, Bülthoff HH and Fleming RW (August-2010) Measuring unrestrained gaze on wall-sized displays, 28th Annual European Conference on Cognitive Ergonomics (ECCE '10), ACM Press, New York, NY, USA, 347-348.
Bieg H-J, Chuang LL, Fleming RW, Reiterer H and Bülthoff HH (March-2010) Eye and Pointer Coordination in Search and Selection Tasks, Symposium on Eye Tracking Research and Applications (ETRA 2010), ACM Press, New York, NY, USA, 89-92.
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Bieg H-J, Chuang LL and Reiterer H (August-2009) Gaze-Assisted Pointing for Wall-Sized Displays In: Human-Computer Interaction - INTERACT 2009, , 12th IFIP TC13 International Conference on Human-Computer Interaction, Springer, Berlin, Germany, 9-12, Series: Lecture Notes in Computer Science ; 5727.
Herholz S, Chuang LL, Tanner TG, Bülthoff HH and Fleming RW (October-2008) LibGaze: Real-time gaze-tracking of freely moving observers for wall-sized displays, 13th International Fall Workshop on Vision, Modeling, and Visualization (VMV 2008), IOS Press, Amsterdam, Netherlands, 101-110.
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Chuang L, Vuong QC, Thornton IM and Bülthoff HH (August-2005) Recognizing novel deforming objects, 2nd Symposium on Applied Perception in Graphics and Visualization (APGV 2005), ACM Press, New York, NY, USA, 158.
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Posters (27):

Symeonidou ER, Olivari M, Venrooij J, Bülthoff HH and Chuang LL (November-13-2016): EEG oscillatory modulations (10-12 Hz) discriminate for voluntary motor control and limb movement, 46th Annual Meeting of the Society for Neuroscience (Neuroscience 2016), San Diego, CA, USA.
Flad N, Bülthoff HH and Chuang LL (August-17-2015): Towards studying the influence of information channel properties on visual scanning processes, International Summer School on Visual Computing (VCSS 2015), Rostock, Germany.
Symeonidou E-R, Olivari M, Bülthoff HH and Chuang LL (March-10-2015): Direct haptic feedback benefits control performance during steering, 57th Conference of Experimental Psychologists (TeaP 2015), Hildesheim, Germany.
Flad N, Bülthoff HH and Chuang LL (March-10-2015): Simultaneous EEG and eye-movement recording in a visual scanning task, 57th Conference of Experimental Psychologists (TeaP 2015), Hildesheim, Germany.
Glatz C, Bülthoff HH and Chuang LL (March-10-2015): Sounds with time-to-contact properties are processed preferentially, 57th Conference of Experimental Psychologists (TeaP 2015), Hildesheim, Germany.
Scheer M, Bülthoff HH and Chuang LL (March-9-2015): Measuring workload during steering: A novelty-P3 study, 57th Conference of Experimental Psychologists (TeaP 2015), Hildesheim, Germany.
Glatz C, Bülthoff HH and Chuang LL (September-2014): Looming auditory warnings initiate earlier event-related potentials in a manual steering task, 12th Biannual Conference of the German Cognitive Science Society (KogWis 2014), Tübingen, Germany, Cognitive Processing, 15(Supplement 1) S38.
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Last updated: Tuesday, 18.11.2014