Niklas Ravaja

Publication Activity (10 Years)

Years Active: 2004-2023
Publications (10 Years): 30

Top Topics

Human Computer Interaction

Information Retrieval

Virtual Reality

Top Venues

IEEE Trans. Affect. Comput.

Publications

Sima Ipakchian Askari, Ville J. Harjunen, Michiel M. A. Spapé, Antal Haans, Niklas Ravaja, Wijnand A. IJsselsteijn
Receiving a Mediated Touch From Your Partner vs. a Male Stranger: How Visual Feedback of Touch and Its Sender Influence Touch Experience. IEEE Trans. Affect. Comput. 14 (2) (2023)
Imtiaj Ahmed, Ville J. Harjunen, Giulio Jacucci, Niklas Ravaja, Tuukka Ruotsalo, Michiel M. A. Spapé
Touching Virtual Humans: Haptic Responses Reveal the Emotional Impact of Affective Agents. IEEE Trans. Affect. Comput. 14 (1) (2023)
Michiel M. A. Spapé, Keith M. Davis, Lauri Kangassalo, Niklas Ravaja, Zania Sovijärvi-Spapé, Tuukka Ruotsalo
Brain-Computer Interface for Generating Personally Attractive Images. IEEE Trans. Affect. Comput. 14 (1) (2023)
Mikko Salminen, Simo Järvelä, Antti Ruonala, Ville J. Harjunen, Juho Hamari, Giulio Jacucci, Niklas Ravaja
Evoking Physiological Synchrony and Empathy Using Social VR With Biofeedback. IEEE Trans. Affect. Comput. 13 (2) (2022)
Simo Järvelä, Benjamin Cowley, Mikko Salminen, Giulio Jacucci, Juho Hamari, Niklas Ravaja
Augmented Virtual Reality Meditation: Shared Dyadic Biofeedback Increases Social Presence Via Respiratory Synchrony. ACM Trans. Soc. Comput. 4 (2) (2021)
Simo Järvelä, Mikko Salminen, Antti Ruonala, Janne Timonen, Kristiina Mannermaa, Niklas Ravaja, Giulio Jacucci
DYNECOM: Augmenting Empathy in VR with Dyadic Synchrony Neurofeedback. HICSS (2019)
Marco Filetti, Hamed R. Tavakoli, Niklas Ravaja, Giulio Jacucci
PeyeDF: an Eye-Tracking Application for Reading and Self-Indexing Research. CoRR (2019)
Niklas Ravaja, Gary Bente, Jari Kätsyri, Mikko Salminen, Tapio Takala
Virtual Character Facial Expressions Influence Human Brain and Facial EMG Activity in a Decision-Making Game. IEEE Trans. Affect. Comput. 9 (2) (2018)
Mikko Salminen, Simo Järvelä, Antti Ruonala, Janne Timonen, Kristiina Mannermaa, Niklas Ravaja, Giulio Jacucci
Bio-adaptive Social VR to Evoke Affective Interdependence: DYNECOM. IUI (2018)
Ilkka Kosunen, Jussi Palomäki, Michael Laakasuo, Kai Kuikkaniemi, Niklas Ravaja, Giulio Jacucci
Heart-rate sonification biofeedback for poker. Int. J. Hum. Comput. Stud. 120 (2018)
Ville Harjunen, Michiel M. A. Spapé, Imtiaj Ahmed, Giulio Jacucci, Niklas Ravaja
Persuaded by the machine: The effect of virtual nonverbal cues and individual differences on compliance in economic bargaining. Comput. Hum. Behav. 87 (2018)
Pekka J. Korhonen, Pekka Malo, Tommi Pajala, Niklas Ravaja, Outi Somervuori, Jyrki Wallenius
Context matters: The impact of product type, emotional attachment and information overload on choice quality. Eur. J. Oper. Res. 264 (1) (2018)
Mikko Salminen, Simo Järvelä, Niklas Ravaja
Economic decision-making in free-to-play games: A laboratory experiment to study the effects of currency conversion. GamiFIN (2018)
Oswald Barral, Ilkka Kosunen, Tuukka Ruotsalo, Michiel M. A. Spapé, Manuel J. A. Eugster, Niklas Ravaja, Samuel Kaski, Giulio Jacucci
BCI for Physiological Text Annotation. BCIforReal@IUI (2017)
Ilkka Kosunen, Antti Ruonala, Mikko Salminen, Simo Järvelä, Niklas Ravaja, Giulio Jacucci
Neuroadaptive Meditation in the Real World. BCIforReal@IUI (2017)
Manuel J. A. Eugster, Tuukka Ruotsalo, Michiel M. A. Spapé, Oswald Barral, Niklas Ravaja, Giulio Jacucci, Samuel Kaski
Natural brain-information interfaces: Recommending information by relevance inferred from human brain signals. CoRR (2016)
Oswald Barral, Ilkka Kosunen, Tuukka Ruotsalo, Michiel M. A. Spapé, Manuel J. A. Eugster, Niklas Ravaja, Samuel Kaski, Giulio Jacucci
Extracting relevance and affect information from physiological text annotation. User Model. User Adapt. Interact. 26 (5) (2016)
Tilo Hartmann, Werner Wirth, Holger Schramm, Christoph Klimmt, Peter Vorderer, André Gysbers, Saskia Böcking, Niklas Ravaja, Jari Laarni, Timo Saari, Feliz Gouveia, Ana Maria Sacau
The Spatial Presence Experience Scale (SPES). J. Media Psychol. Theor. Methods Appl. 28 (1) (2016)
Imtiaj Ahmed, Ville Harjunen, Giulio Jacucci, Eve E. Hoggan, Niklas Ravaja, Michiel M. A. Spapé
Reach out and touch me: effects of four distinct haptic technologies on affective touch in virtual reality. ICMI (2016)
Niklas Ravaja, Ben Cowley, Jari Torniainen
A short review and primer on electromyography in human computer interaction applications. CoRR (2016)
Minna Stenius, Nelli Hankonen, Niklas Ravaja, Ari Haukkala
Why share expertise? A closer look at the quality of motivation to share or withhold knowledge. J. Knowl. Manag. 20 (2) (2016)
Imtiaj Ahmed, Ville Harjunen, Giulio Jacucci, Niklas Ravaja, Michiel M. A. Spapé
Total Immersion: Designing for Affective Symbiosis in a Virtual Reality Game with Haptics, Biosensors, and Emotive Agents. Symbiotic (2016)
Benjamin Cowley, Marco Filetti, Kristian Lukander, Jari Torniainen, Andreas Henelius, Lauri Ahonen, Oswald Barral, Ilkka Kosunen, Teppo Valtonen, Minna Huotilainen, Niklas Ravaja, Giulio Jacucci
The Psychophysiology Primer: A Guide to Methods and a Broad Review with a Focus on Human-Computer Interaction. Found. Trends Hum. Comput. Interact. 9 (3-4) (2016)
Ilkka Kosunen, Mikko Salminen, Simo Järvelä, Antti Ruonala, Niklas Ravaja, Giulio Jacucci
RelaWorld: Neuroadaptive and Immersive Virtual Reality Meditation System. IUI (2016)
Dorina Rajanen, Mikko Salminen, Niklas Ravaja
Reading a Newspaper on Print Versus Screen: A Motivational Perspective. HICSS (2016)
Oswald Barral, Manuel J. A. Eugster, Tuukka Ruotsalo, Michiel M. A. Spapé, Ilkka Kosunen, Niklas Ravaja, Samuel Kaski, Giulio Jacucci
Exploring Peripheral Physiology as a Predictor of Perceived Relevance in Information Retrieval. IUI (2015)
Minna Stenius, Nelli Hankonen, Ari Haukkala, Niklas Ravaja
Understanding knowledge sharing in the work context by applying a belief elicitation study. J. Knowl. Manag. 19 (3) (2015)
Niklas Ravaja, Pekka Aula, Alessio Falco, Salla Laaksonen, Mikko Salminen, Antti Ainamo
Online News and Corporate ReputationA Neurophysiological Investigation. J. Media Psychol. Theor. Methods Appl. 27 (3) (2015)
Michiel M. A. Spapé, Marco Filetti, Manuel J. A. Eugster, Giulio Jacucci, Niklas Ravaja
Human Computer Interaction Meets Psychophysiology: A Critical Perspective. Symbiotic (2015)
Dorina Rajanen, Mikko Salminen, Niklas Ravaja
Psychophysiological responses to digital media: frontal EEG alpha asymmetry during newspaper reading on a tablet versus print. MindTrek (2015)
Michiel M. A. Spapé, Niklas Ravaja
Social Psychology of the Digital Age: The Interpersonal Neuroscience of Mediated Communication. HCI (22) (2014)
Simo Järvelä, Inger Ekman, J. Matias Kivikangas, Niklas Ravaja
A Practical Guide to Using Digital Games as an Experiment Stimulus. Trans. Digit. Games Res. Assoc. 1 (2) (2014)
Ben Cowley, Martino Fantato, Charlene Jennett, Martin Ruskov, Niklas Ravaja
Learning When Serious: Psychophysiological Evaluation of a Technology-Enhanced Learning Game. J. Educ. Technol. Soc. 17 (1) (2014)
Niklas Ravaja, Jari Kätsyri
Suboptimal facial expression primes in textual media messages: Evidence for the affective congruency effect. Comput. Hum. Behav. 40 (2014)
Manuel J. A. Eugster, Tuukka Ruotsalo, Michiel M. A. Spapé, Ilkka Kosunen, Oswald Barral, Niklas Ravaja, Giulio Jacucci, Samuel Kaski
Predicting term-relevance from brain signals. SIGIR (2014)
Ben Cowley, Niklas Ravaja, Tuija Heikura
Cardiovascular physiology predicts learning effects in a serious game activity. Comput. Educ. 60 (1) (2013)
J. Matias Kivikangas, Niklas Ravaja
Emotional Responses to Victory and Defeat as a Function of Opponent. IEEE Trans. Affect. Comput. 4 (2) (2013)
Mikko Salminen, Niklas Ravaja, Kari Kallinen, Timo Saari
Mediated Cues of Group Emotion during Knowledge-Work Tasks: Effects on Subjective and Physiological Responses. Interact. Comput. 25 (1) (2013)
Ben Cowley, Tuija Heikura, Niklas Ravaja
Learning loops - interactions between guided reflection and experience-based learning in a serious game activity. J. Comput. Assist. Learn. 29 (4) (2013)
Guillaume Chanel, J. Matias Kivikangas, Niklas Ravaja
Physiological compliance for social gaming analysis: Cooperative versus competitive play. Interact. Comput. 24 (4) (2012)
Jari Kätsyri, Niklas Ravaja, Mikko Salminen
Aesthetic images modulate emotional responses to reading news messages on a small screen: A psychophysiological investigation. Int. J. Hum. Comput. Stud. 70 (1) (2012)
Kari Kallinen, Inger Ekman, Niklas Ravaja
Individual Differences in Work Load While Doing Multitasking with a Computer. HCI (1) (2011)
Kari Kallinen, Jan Kallenbach, Niklas Ravaja
The Effects of Content Type and Presentation Style on User Experiences of Multimedia Content on a Tablet PC. HCI (4) (2011)
Ben Kirman, Francesco Collova, Fabrizio Davide, Eva Ferrari, Jonathan Freeman, Shaun W. Lawson, Conor Linehan, Niklas Ravaja
Social Architecture and the Emergence of Power Laws in Online Social Games. DiGRA Conference (2011)
J. Matias Kivikangas, Lennart E. Nacke, Niklas Ravaja
Developing a triangulation system for digital game events, observational video, and psychophysiological data to study emotional responses to a virtual character. Entertain. Comput. 2 (1) (2011)
Kai Kuikkaniemi, Toni Laitinen, Marko Turpeinen, Timo Saari, Ilkka Kosunen, Niklas Ravaja
The influence of implicit and explicit biofeedback in first-person shooter games. CHI (2010)
Timo Saari, Kari Kallinen, Mikko Salminen, Niklas Ravaja, Marco Rapino
A Mobile and Desktop Application for Enhancing Group Awareness in Knowledge Work Teams. HCI (3) (2009)
J. Matias Kivikangas, Niklas Ravaja
Suboptimal Affective Primes in Video Messages. J. Media Psychol. Theor. Methods Appl. 21 (1) (2009)
Timo Saari, Marko Turpeinen, Kai Kuikkaniemi, Ilkka Kosunen, Niklas Ravaja
Emotionally Adapted Games - An Example of a First Person Shooter. HCI (4) (2009)
Jari Laarni, Juhani Heinilä, Jukka Häkkinen, Virpi Kalakoski, Kari Kallinen, Kristian Lukander, Paula Löppönen, Tapio Palomäki, Niklas Ravaja, Paula Savioja, Antti Väätänen
Supporting Situation Awareness in Demanding Operating Environments through Wearable User Interfaces. HCI (17) (2009)
Timo Saari, Kari Kallinen, Mikko Salminen, Niklas Ravaja, Kliment Yanev
A Mobile System and Application for Facilitating Emotional Awareness in Knowledge Work Teams. HICSS (2008)
Mikko Salminen, Kari Kallinen, Kliment Yanev, Niklas Ravaja, Timo Saari
Mobile Application for Increasing Contextual and Emotional Work Group Awareness. INTERACT (1) (2007)
Jari Laarni, Liisa Lähteenmäki, Johanna Kuosmanen, Niklas Ravaja
Usability of Hybridmedia Services - PC and Mobile Applications Compared. HCI (3) (2007)
Mikko Salminen, Niklas Ravaja
Oscillatory Brain Responses Evoked by Video Game Events: The Case of Super Monkey Ball 2. Cyberpsychology Behav. Soc. Netw. 10 (3) (2007)
Kari Kallinen, Niklas Ravaja
Comparing speakers versus headphones in listening to news from a computer - individual differences and psychophysiological responses. Comput. Hum. Behav. 23 (1) (2007)
Niklas Ravaja, Timo Saari, Marko Turpeinen, Jari Laarni, Mikko Salminen, J. Matias Kivikangas
Spatial Presence and Emotions during Video Game Playing: Does It Matter with Whom You Play? Presence Teleoperators Virtual Environ. 15 (4) (2006)
Jari Laarni, Niklas Ravaja, Timo Saari
Presence experience in mobile gaming. DiGRA Conference (2005)
Niklas Ravaja, Timo Saari, Jari Laarni, Kari Kallinen, Mikko Salminen, Jussi Holopainen, Aki Järvinen
The Psychophysiology of Video Gaming: Phasic Emotional Responses to Game Events. DiGRA Conference (2005)
Kari Kallinen, Niklas Ravaja
Effects of the rate of computer-mediated speech on emotion-related subjective and physiological responses. Behav. Inf. Technol. 24 (5) (2005)
Timo Saari, Niklas Ravaja, Jari Laarni, Marko Turpeinen
Towards Emotionally Adapted Games based on User Controlled Emotion Knobs. DiGRA Conference (2005)
Timo Saari, Niklas Ravaja, Jari Laarni, Marko Turpeinen
Persuasive Games and Simulations for Personal Health Management. DiGRA Conference (2005)
Timo Saari, Marko Turpeinen, Jari Laarni, Niklas Ravaja, Kari Kallinen
Emotionally Loaded Mobile Multimedia Messaging. ICEC (2004)
Kari Kallinen, Jari Laarni, Niklas Ravaja, Timo Saari
Gender and habitual use of media moderate the memory performance in emotional-multimodal context. NordiCHI (2004)
Niklas Ravaja, Mikko Salminen, Jussi Holopainen, Timo Saari, Jari Laarni, Aki Järvinen
Emotional response patterns and sense of presence during video games: potential criterion variables for game design. NordiCHI (2004)
Timo Saari, Niklas Ravaja, Jari Laarni, Marko Turpeinen, Kari Kallinen
Psychologically targeted persuasive advertising and product information in e-commerce. ICEC (2004)
Jari Laarni, Niklas Ravaja, Kari Kallinen, Timo Saari
Transcendent experience in the use of computer-based media. NordiCHI (2004)