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- research-articleOctober 2023
Cognitive Load Measurement with Physiological Sensors in Virtual Reality during Physical Activity
- Mohammad Ahmadi,
- Samantha W. Michalka,
- Sabrina Lenzoni,
- Marzieh Ahmadi Najafabadi,
- Huidong Bai,
- Alexander Sumich,
- Burkhard Wuensche,
- Mark Billinghurst
VRST '23: Proceedings of the 29th ACM Symposium on Virtual Reality Software and TechnologyArticle No.: 29, Pages 1–11https://doi.org/10.1145/3611659.3615704Many Virtual Reality (VR) experiences, such as learning tools, would benefit from utilising mental states such as cognitive load. Increases in cognitive load (CL) are often reflected in the alteration of physiological responses, such as pupil dilation (...
- abstractMay 2023
Pupillometry for Measuring User Response to Movement of an Industrial Robot
ETRA '23: Proceedings of the 2023 Symposium on Eye Tracking Research and ApplicationsArticle No.: 52, Pages 1–2https://doi.org/10.1145/3588015.3590123Interactive systems can adapt to individual users to increase productivity, safety, or acceptance. Previous research focused on different factors, such as cognitive workload (CWL), to better understand and improve the human-computer or human-robot ...
- research-articleMarch 2023
True or false? Cognitive load when reading COVID-19 news headlines: an eye-tracking study
CHIIR '23: Proceedings of the 2023 Conference on Human Information Interaction and RetrievalPages 107–116https://doi.org/10.1145/3576840.3578290Misinformation is an important topic in the Information Retrieval (IR) context and has implications for both system-centered and user-centered IR. While it has been established that the performance in discerning misinformation is affected by a person’s ...
- research-articleJanuary 2022
Is an anthropomorphic app icon more attractive than a non-anthropomorphic one? A case study using multimodal measurement
International Journal of Mobile Communications (IJMC), Volume 20, Issue 4Pages 419–439https://doi.org/10.1504/ijmc.2022.123789This study investigates how an anthropomorphic app icon affects users' responses from an emotional standpoint. The design is a case-study/laboratory experiment in which 50 participants evaluated a commercially available weather app icon that had facial ...
- research-articleSeptember 2020
Surround sound spreads visual attention and increases cognitive effort in immersive media reproductions
AM '20: Proceedings of the 15th International Audio Mostly ConferencePages 16–21https://doi.org/10.1145/3411109.3411118The goal of this study was to explore the effects of different spatial sound configurations on visual attention and cognitive effort in an immersive environment. For that purpose, different groups of people were exposed to the same immersive video, but ...
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- extended-abstractJuly 2019
Expressive Virtual Human: Impact of expressive wrinkles and pupillary size on emotion recognition
IVA '19: Proceedings of the 19th ACM International Conference on Intelligent Virtual AgentsPages 215–217https://doi.org/10.1145/3308532.3329446Improving the expressiveness of virtual humans is essential for qualitative interactions and development of an emotional bond. It is certainly indicated for all applications using the user's cognitive processes, such as applications dedicated to ...
- abstractJune 2019
Microsaccadic and pupillary response to tactile task difficulty
ETRA '19: Proceedings of the 11th ACM Symposium on Eye Tracking Research & ApplicationsArticle No.: 56, Pages 1–3https://doi.org/10.1145/3314111.3322875The research goal is to explore the relationship between eye tracking measures and a tactile version of the n-back task. The n-back task is often used to evoke cognitive load, however this is the first study that incorporates tactile stimulus as input. ...
- research-articleNovember 2018
An evaluation of pupillary light response models for 2D screens and VR HMDs
VRST '18: Proceedings of the 24th ACM Symposium on Virtual Reality Software and TechnologyArticle No.: 19, Pages 1–11https://doi.org/10.1145/3281505.3281538Pupil diameter changes have been shown to be indicative of user engagement and cognitive load for various tasks and environments. However, it is still not the preferred physiological measure for applied settings. This reluctance to leverage the pupil as ...
- research-articleOctober 2018
Perceptual Adjustment of Eyeball Rotation and Pupil Size Jitter for Virtual Characters
ACM Transactions on Applied Perception (TAP), Volume 15, Issue 4Article No.: 24, Pages 1–13https://doi.org/10.1145/3238302Eye motions constitute an important part of our daily face-to-face interactions. Even subtle details in the eyes’ motions give us clues about a person’s thoughts and emotions. Believable and natural animation of the eyes is therefore crucial when ...
- research-articleJuly 2018
Comparing pupil dilation, head movement, and EEG for distraction detection of drivers
HCI '18: Proceedings of the 32nd International BCS Human Computer Interaction ConferenceArticle No.: 69, Pages 1–5https://doi.org/10.14236/ewic/HCI2018.69This paper investigates the use of pupil dilation, head movement and EEG for detecting distraction and cognitive load of drivers while performing secondary tasks in an automotive environment. We tracked pupil dilation from Tobii Pro Glasses 2, head ...
- research-articleJune 2018
Beyond gaze: preliminary analysis of pupil dilation and blink rates in an fMRI study of program comprehension
EMIP '18: Proceedings of the Workshop on Eye Movements in ProgrammingArticle No.: 4, Pages 1–5https://doi.org/10.1145/3216723.3216726Researchers have been employing psycho-physiological measures to better understand program comprehension, for example simultaneous fMRI and eye tracking to validate top-down comprehension models. In this paper, we argue that there is additional value in ...
- research-articleJune 2018
Dynamics of emotional facial expression recognition in individuals with social anxiety
- Krzysztof Krejtz,
- Katarzyna Wisiecka,
- Izabela Krejtz,
- Paweł Holas,
- Michał Olszanowski,
- Andrew T. Duchowski
ETRA '18: Proceedings of the 2018 ACM Symposium on Eye Tracking Research & ApplicationsArticle No.: 43, Pages 1–9https://doi.org/10.1145/3204493.3204533This paper demonstrates the utility of ambient-focal attention and pupil dilation dynamics to describe visual processing of emotional facial expressions. Pupil dilation and focal eye movements reflect deeper cognitive processing and thus shed more light ...
- abstractApril 2018
Look into my Eyes: Using Pupil Dilation to Estimate Mental Workload for Task Complexity Adaptation
CHI EA '18: Extended Abstracts of the 2018 CHI Conference on Human Factors in Computing SystemsPaper No.: LBW617, Pages 1–6https://doi.org/10.1145/3170427.3188643Cognition-aware systems acquire physiological data to derive implications about physical and mental states. Pupil dilation has recently attracted attention in the HCI community as an indicator for mental workload. The impact of mental workload on ...
- Work in ProgressMarch 2018
Augmented Metacognition: Exploring Pupil Dilation Sonification to Elicit Metacognitive Awareness
TEI '18: Proceedings of the Twelfth International Conference on Tangible, Embedded, and Embodied InteractionPages 237–244https://doi.org/10.1145/3173225.3173265Metacognitive awareness enables people to make conscious decisions about their own cognitions, and adapt to meet task performance goals. Despite the role of metacognition in task performance, technologies that effectively augment metacognition are ...
- short-paperNovember 2017
Are you really angry?: detecting emotion veracity as a proposed tool for interaction
OzCHI '17: Proceedings of the 29th Australian Conference on Computer-Human InteractionPages 412–416https://doi.org/10.1145/3152771.3156147Interaction with faces expressing emotion is compelling and can focus human attention strongly. A face showing emotion reflects the internal mental state of the displayer of the emotion and is arguably also an attempt to influence the internal mental ...
- research-articleSeptember 2017
PupilScreen: Using Smartphones to Assess Traumatic Brain Injury
- Alex Mariakakis,
- Jacob Baudin,
- Eric Whitmire,
- Vardhman Mehta,
- Megan A. Banks,
- Anthony Law,
- Lynn Mcgrath,
- Shwetak N. Patel
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), Volume 1, Issue 3Article No.: 81, Pages 1–27https://doi.org/10.1145/3131896Before a person suffering from a traumatic brain injury reaches a medical facility, measuring their pupillary light reflex (PLR) is one of the few quantitative measures a clinician can use to predict their outcome. We propose PupilScreen, a smartphone ...
- short-paperJuly 2017
Leveraging Pupil Dilation Measures for Understanding Users' Cognitive Load During Visualization Processing
UMAP '17: Adjunct Publication of the 25th Conference on User Modeling, Adaptation and PersonalizationPages 267–270https://doi.org/10.1145/3099023.3099059In this paper we describe a preliminary investigation in using pupil dilation measurements to understand user visualization processing, with the long-term goal of building user-adaptive visualizations that can tailor the presentation of complex visual ...
- research-articleMarch 2017
Pupillometry and Head Distance to the Screen to Predict Skill Acquisition During Information Visualization Tasks
IUI '17: Proceedings of the 22nd International Conference on Intelligent User InterfacesPages 221–231https://doi.org/10.1145/3025171.3025187In this paper we investigate using a variety of behavioral measures collectible with an eye tracker to predict a user's skill acquisition phase while performing various information visualization tasks with bar graphs. Our long term goal is to use this ...
- research-articleMarch 2016
Task Load Estimation and Mediation Using Psycho-physiological Measures
IUI '16: Proceedings of the 21st International Conference on Intelligent User InterfacesPages 48–59https://doi.org/10.1145/2856767.2856769Human performance falls off predictably with excessive task difficulty. This paper reports on a search for a task load estimation metric. Of the five physiological signals analyzed from a multitasking study, only pupil dilation measures correlated well ...
- research-articleDecember 2013
Feature selection for gaze, pupillary, and EEG signals evoked in a 3D environment
GazeIn '13: Proceedings of the 6th workshop on Eye gaze in intelligent human machine interaction: gaze in multimodal interactionPages 45–50https://doi.org/10.1145/2535948.2535950As we navigate our environment, we are constantly assessing the objects we encounter and deciding on their subjective interest to us. In this study, we investigate the neural and ocular correlates of this assessment as a step towards their potential use ...