Mathias Müller

Mathias Müller
VTplus GmbH, Würzburg, Germany · virtual therapy + research systems

About

28
Publications
6,909
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
862
Citations
Citations since 2016
13 Research Items
759 Citations
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150
2016201720182019202020212022050100150
Additional affiliations
September 2006 - July 2014
University of Wuerzburg
Position
  • Virtual Reality Paradigm Developer

Publications

Publications (28)
Article
Full-text available
There continues to be difficulties when it comes to replication of studies in the field of Psychology. In part, this may be caused by insufficiently standardized analysis methods that may be subject to state dependent variations in performance. In this work, we show how to easily adapt the two-layer feedforward neural network architecture provided...
Article
Full-text available
Background: Exposure therapy involves exposure to feared stimuli and is considered to be the gold-standard treatment for anxiety disorders. While its application in Virtual Reality (VR) has been very successful for phobic disorders, the effects of exposure to virtual social stimuli in Social Anxiety Disorder are heterogeneous. This difference has b...
Article
The capability model of anterior asymmetry integrates trait-related and state-related frontal asymmetry research by proposing that frontal asymmetry is dependent on relevant traits if they are activated by a situation. However, differences in experimental design and EEG recording methods haven’t been fully explored. We investigated 56 participants...
Article
Trait or stimulus valence related differences in heart rate change have often been investigated in psychophysiological research. However, the influence of different behavioral responses during motivational contexts on cardiac response patterns has been neglected so far. In this manuscript, HR change during movement via joystick during the negativel...
Article
Full-text available
Physical distance is a prominent feature in face-to-face social interactions and allows regulating social encounters. Close interpersonal distance (IPD) increases emotional responses during interaction and has been related to avoidance behavior in social anxiety. However, a systematic investigation of the effects of IPD on subjective experience com...
Article
Full-text available
Acrophobia is characterized by intense fear in height situations. Virtual reality (VR) can be used to trigger such phobic fear, and VR exposure therapy (VRET) has proven effective for treatment of phobias, although it remains important to further elucidate factors that modulate and mediate the fear responses triggered in VR. The present study asses...
Poster
Full-text available
Let´s do it again! Replication of frontal activation patterns and behavior in a virtual T-maze Frontal asymmetry is still discussed concerning the theoretical constructs leading to the phenomenon. The original theory of Davidson and the specification by Harmon – Jones & Allen allocated approach motivation to relative left anterior brain activatio...
Poster
Full-text available
Frontal asymmetry is still discussed concerning the theoretical constructs leading to the phenomenon. The original theory of Davidson and the specification by Harmon – Jones & Allen allocated approach motivation to relative left anterior brain activation and withdrawal motivation to relative right anterior brain activation. Hewig and colleagues ext...
Article
Frontal asymmetry has been investigated over the past 30 years, and several theories have been developed about its meaning. The original theory of Davidson and its diversification by Harmon-Jones & Allen allocated approach motivation to relative left frontal brain activity and withdrawal motivation to relative right frontal brain activity. Hewig an...
Article
Full-text available
In line with the assumption that emotional-motivational deficits are one core dysfunction in ADHD, in one of our previous studies we observed a reduced reactivity towards pleasant pictures in adult ADHD patients as compared to controls. This was indicated by a lack of attenuation of the startle reflex specifically during pleasant pictures in ADHD p...
Poster
Full-text available
To flee or not to flee: Frontal activation patterns and behavior in a virtual T-maze Frontal asymmetry, as proposed by Davidson, is still under discussion and different theories about its´ meaning are present. The original theory of Davidson and the diversification by Harmon – Jones & Allen allocated approach motivation to left frontal brain activ...
Article
Introduction Evacuation from tunnel fire emergencies may become problematic if tunnel occupants do not engage quickly enough into evacuation. Dangerous goods transporters increase the risks tunnel occupants are exposed to. The aim of the present study is to investigate the effect of an increased risk during a simulated tunnel emergency on particip...
Article
A case study on the analysis of evacuation travel paths in virtual reality (VR) tunnel fire experiments is presented to increase the understanding on evacuation behaviour. A novel method based on the study of the parametric equations of the occupants’ evacuation travel paths using vector operators inspired by functional analysis theory and the new...
Conference Paper
Full-text available
Social Influence (SI) plays an important role in tunnel fire evacuation, as seeing other occupants (bystanders) stay passive may both decrease the likelihood and increase the time of occupants’ evacuation decision. In addition exit and route choice of others influences occupants’ travel paths. The present study investigates if and how passive bysta...
Article
Evacuation from a smoke filled tunnel requires quick decision-making and swift action from the tunnel occupants. Technical installations such as emergency signage aim to guide tunnel occupants to the closest emergency exits. However, conflicting information may come from the behavior of other tunnel occupants. We examined if and how conflicting soc...
Article
Full-text available
Extinction is an important mechanism to inhibit initially acquired fear responses. There is growing evidence that the ventromedial prefrontal cortex (vmPFC) inhibits the amygdala and therefore plays an important role in the extinction of delay fear conditioning. To our knowledge, there is no evidence on the role of the prefrontal cortex in the exti...
Conference Paper
Full-text available
The presented pre-study, that was conducted in the context of a larger project investigating the influence of negative social interactions on executive functions had two goals: (1) to validate different interactions with virtual agents regarding their emotional valence, (2) to ensure that statements of the agents are perceived as natural. The virt...
Conference Paper
Full-text available
Virtual reality (VR) has become a popular approach to study human behavior in fire. The present position paper analyses Strengths, Weaknesses, Opportunities, and Threats (SWOT) of VR as a research tool for human behavior in fire. Virtual environments provide a maximum of experimental control, are easy to replicate, have relatively high ecological v...
Article
Virtual reality (VR) has become a popular approach to study human behavior in fire. The present position paper analyses Strengths, Weaknesses, Opportunities, and Threats (SWOT) of VR as a research tool for human behavior in fire. Virtual environments provide a maximum of experimental control, are easy to replicate, have relatively high ecological v...
Article
Immediate user self-evacuation is crucial in case of fire in road tunnels. This study investigated the effects of information with or without additional virtual reality (VR) behavioural training on self-evacuation during a simulated emergency situation in a road tunnel. Forty-three participants were randomly assigned to three groups with accumulati...
Article
Traffic accidentsmay cause enormous stress and can possibly affect the physical and psychologicalwell-being of the people involved. Traffic accidents are a risk factor for acute and posttraumatic stress disorder. Two studies examined stress experience, driving behavior discussed in this paper and the moderating influence of perceived responsibility...
Article
According to cognitive approaches in emotion research, emotions hinge on beliefs that can be true or false. We suggest that emotionally relevant beliefs can be influenced bottom-up e.g. by the depth cues of a virtual environment or top-down e.g. by reappraisal strategies. Our research question is if bottom-up and top-down processes influence the sa...
Conference Paper
Immediate user self-evacuation is crucial in case of fire in road tunnels. Social Influence (SI) may affect the evacuation process. Using a virtual reality road tunnel scenario, this study investigated the effect of information about adequate behavior in critical situations in road tunnels and SI on the driver’s behavior. Sixty participants conduct...

Network

Cited By

Projects

Projects (3)
Project
Economic games provide a good trait activation context for several personality traits. In this project, different economic games as well as the trait activation theory itself is investigated in the context of different personality traits.
Project
The virtual T-maze allows to measure cardiac response patterns while virtual movement is done. This offers the opportunity to have a closer look on the relation of behavioral performance and cardiac response patterns, e.g. withdrawal type and orienting reaction and defensive response, that may offer insights into individual differences and the influence of the chosen behavior on the cardiac response patterns