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ACM Transactions on Applied Perception (TAP), Volume 9 Issue 1, March 2012

Voluntary facial activations regulate physiological arousal and subjective experiences during virtual social stimulation
Toni Vanhala, Veikko Surakka, Matthieu Courgeon, Jean-Claude Martin
Article No.: 1
DOI: 10.1145/2134203.2134204

Exposure to distressing computer-generated stimuli and feedback of physiological changes during exposure have been effective in the treatment of anxiety disorders (e.g., social phobia). Here we studied voluntary facial activations as a method for...

Multimodal recognition of reading activity in transit using body-worn sensors
Andreas Bulling, Jamie A. Ward, Hans Gellersen
Article No.: 2
DOI: 10.1145/2134203.2134205

Reading is one of the most well-studied visual activities. Vision research traditionally focuses on understanding the perceptual and cognitive processes involved in reading. In this work we recognize reading activity by jointly analyzing eye and...

Reinforcement learning utilizes proxemics: An avatar learns to manipulate the position of people in immersive virtual reality
Iason Kastanis, Mel Slater
Article No.: 3
DOI: 10.1145/2134203.2134206

A reinforcement learning (RL) method was used to train a virtual character to move participants to a specified location. The virtual environment depicted an alleyway displayed through a wide field-of-view head-tracked stereo head-mounted display....

Scene-motion thresholds during head yaw for immersive virtual environments
Jason Jerald, Mary Whitton, Frederick P. Brooks, Jr.
Article No.: 4
DOI: 10.1145/2134203.2134207

In order to better understand how scene motion is perceived in immersive virtual environments, we measured scene-motion thresholds under different conditions across three experiments. Thresholds were measured during quasi-sinusoidal head yaw,...

Enhancing visuospatial map learning through action on cellphones
Mounia Ziat, Carmen Au, Amin Haji Abolhassani, James J. Clark
Article No.: 5
DOI: 10.1145/2134203.2134208

The visuospatial learning of a map on cellphone displays was examined. The spatial knowledge of human participants was assessed after they had learned the relative positions of London Underground stations on a map via passive, marginally active,...