Contact

Tonja Machulla

Address: Spemannstr. 38
72076 Tübingen
Room number: 111
Phone: +49 7071 601 608
Fax: +49 7071 601 616
E-Mail: tonja.machulla

 

Picture of Machulla, Tonja

Tonja Machulla

Position: Guest Scientist  Unit: Alumni Ernst Bülthoff

I study the temporal relationships between different sense modalities (audition, vision, and touch), using psychophysical methods.

 

This research was funded by the SFB 550 "Recognizing, localizing, acting: Neurocognitive mechanisms and their flexibility" and the Bernstein Center for Computational Neuroscience Cluster C "Perceptual Inference Mechanisms".

Multisensory timing

 

Humans perceive their environment through different sensory modalities. An approaching train can be seen, heard, and even felt through the vibrations of the ground.

 

At the level of sensory receptors, these sensory channels are independent of each other. However, they soon converge on multisensory processing sites, as early as in the brain stem. Our brain faces the continual challenge of identifying which sensory signal corresponds with which across the different modalities.

 

 

In my dissertation, I investigate the role that temporal information plays in this binding process. In particular, I study:

  • how relative differences in physical and physiological time are compensated for (e.g., light travels faster than sound)
  • how changes in the environment that modify the temporal relationship of sensory signals can be compensated for, and
  • whether the perceived timing of multisensory information is determined by a supramodal mechanism.

 

The overarching research goal is to model mechanisms of multimodal timing perception.

I studied Psychology (Dipl. Psych.) at Martin Luther University, Halle. From 2003-2005, I spent 4 semesters at New School University, New York, as a Fulbright and a German National Academic Foundation scholar. There, I received an M.A. (hons.) in General Psychology for my work with Dr. Arien Mack on inattentional blindness. During the same time, I worked at the Center for Cognition and Communication as a cognitive rehabilitation therapist for patients with traumatic brain injury.

 

Currently, I am a doctoral candidate with Prof. Marc Ernst.

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Articles (4):

Machulla T-K, Di Luca M and Ernst MO (July-2016) The consistency of crossmodal synchrony perception across the visual, auditory, and tactile senses Journal of Experimental Psychology: Human Perception and Performance 42(7) 1026-1038.
Machulla TK, Di Luca M, Fröhlich E and Ernst MO (March-2012) Multisensory simultaneity recalibration: storage of the aftereffect in the absence of counterevidence Experimental Brain Research 217(1) 89-97.
Battaglia PW, Di Luca M, Ernst MO, Schrater PR, Machulla T and Kersten D (March-2010) Within- and cross-modal distance information disambiguates visual size perception PLoS Computational Biology 6(3) 1-10.
Di Luca M, Machulla T-K and Ernst MO (December-2009) Recalibration of multisensory simultaneity: Cross-modal transfer coincides with a change in perceptual latency Journal of Vision 9(12:7) 1-16.

Conference papers (4):

Dingler T, Schmidt A and Machulla T (September-2017) Building Cognition-Aware Systems: A Mobile Toolkit for Extracting Time-of-Day Fluctuations of Cognitive Performance, ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp '17), ACM Press, New York, NY, USA, Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, 1(3:47), 1-15.
Greis M, El. Agroudy P, Schuff H, Machulla T and Schmidt A (October-2016) Decision-Making under Uncertainty: How the Amount of Presented Uncertainty Influences User Behavior, 9th Nordic Conference on Human-Computer Interaction (NordiCHI '16), ACM Press, New York, NY, USA, 52.
Voit A, Machulla T, Weber D, Schwind V, Schneegans S and Henze N (September-2016) Exploring notifications in smart home environments, 18th International Conference on Human-Computer Interaction with Mobile Devices and Services Adjunct (MobileHCI '16), ACM Press, New York, NY, USA, 942-947.
El.Agroudy P, Machulla T, Rzayev R, Dingler T, Funk M, Schmidt A, Ward G and Clinch S (September-2016) Impact of Reviewing Lifelogging Photos on Recalling Episodic Memories, ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp '16), ACM Press, New York, NY, USA, 1014-1019.

Posters (9):

Faltaous S, Machulla T, Baumann M and Chuang L (September-25-2017): Developing a Highly Automated Driving Scenario to Investigate User Intervention "When Things Go Wrong", 9th International ACM Conference on Automotive User Interfaces and Interactive Vehicular Applications (AutomotiveUI '17), Oldenburg, Germany.
Di Luca M, Machulla T, Barnett-Cowan M and Ernst MO (September-2011): Recalibration of audiovisual simultaneity, Bernstein Cluster D Symposium: Multisensory Perception and Action, Tübingen, Germany.
Machulla T, Di Luca M and Ernst MO (May-2010): Does audiovisual temporal recalibration store without stimulation?, 10th Annual Meeting of the Vision Sciences Society (VSS 2010), Naples, FL, USA, Journal of Vision, 10(7) 1414.
Battaglia P, Ernst M, Schrater P, Di Luca M, Machulla T and Kersten D (June-2008): Humans use stereo and haptic distance cues to improve physical object size estimates, 8th Annual Meeting of the Vision Sciences Society (VSS 2008), Naples, FL, USA, Journal of Vision, 8(6) 1090.
Machulla T, Di Luca M and Ernst M (August-2007): Perception of crossmodal simultaneity is not transitive, 30th European Conference on Visual Perception, Arezzo, Italy, Perception, 36(ECVP Abstract Supplement) 209.
Di Luca M, Machulla T and Ernst M (August-2007): Temporal adaptation influences non-adapted modality pairs, 30th European Conference on Visual Perception, Arezzo, Italy, Perception, 36(ECVP Abstract Supplement) 207.
Machulla TK, Di Luca M and Ernst MO (July-2007): Crossmodal simultaneity is not transitive, 10th Tübinger Wahrnehmungskonferenz (TWK 2007), Tübingen, Germany.
Di Luca M, Machulla T and Ernst M (July-2007): Perceived timing across modalities, International Intersensory Research Symposium 2007: Perception and Action, Sydney, Australia.
pdf
Machulla T, Di Luca M and Ernst M (July-2007): Temporal calibration between the visual, auditory and tactile senses: A psychophysical approach, 1st Peach Summer School, Santorini, Greece.

Talks (1):

Machulla T, Di Luca M and Ernst M (March-4-2008) Abstract Talk: Recalibration of Audiovisual Synchrony: What is changing?, 50. Tagung Experimentell Arbeitender Psychologen (TeaP 2008), Marburg, Germany 56.

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Last updated: Monday, 22.05.2017