Searched for: subject:"Affect"
(1 - 20 of 70)

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Toet, A. (author), van Erp, J.B.F. (author)
Background: In this study we measured the affective appraisal of sounds and video clips using a newly developed graphical self-report tool: the EmojiGrid. The EmojiGrid is a square grid, labeled with emoji that express different degrees of valence and arousal. Users rate the valence and arousal of a given stimulus by simply clicking on the grid....
article 2021
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Toet, A. (author), van Erp, J.B.F. (author)
We evaluated the convergent validity of the new language-independent EmojiGrid rating tool for the affective appraisal of perceived touch events. The EmojiGrid is a rectangular response grid, labeled with facial icons (emoji) that express different degrees of valence and arousal. We previously showed that participants can intuitively and...
conference paper 2020
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Toet, A. (author), Eijsman, S. (author), Liu, Y. (author), Donker, S. (author), Kaneko, D. (author), Brouwer, A.M. (author), van Erp, J.B.F. (author)
Introduction: he main purpose of this study was to investigate the overall relation between the mean (at the nomothetic or group level) subjective valence and arousal ratings for odors. Although well established in other sensory modalities (e.g., visual, auditory, gustatory, tactile), this relation has not previously been investigated for odors...
article 2020
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Thammasan, N. (author), Stuldreher, I.V. (author), Schreuders, E. (author), Giletta, M. (author), Brouwer, A.M. (author)
Measuring psychophysiological signals of adolescents using unobtrusive wearable sensors may contribute to understanding the development of emotional disorders. This study investigated the feasibility of measuring high quality physiological data and examined the validity of signal processing in a school setting. Among 86 adolescents, a total of...
article 2020
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Aliman, N.M. (author), Kester, L.H.J.M. (author)
In recent years, prevalent global societal issues related to fake news, fakery, misinformation, and disinformation were brought to the fore, leading to the construction of descriptive labels such as “post-truth” to refer to the supposedly new emerging era. Thereby, the (mis-)use of technologies such as AI and VR has been argued to potentially...
article 2020
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Toet, A. (author), van Schaik, M.G. (author), Kaneko, D. (author), van Erp, J.B.F. (author)
Viewing images of food triggers the desire to eat and this effect increases when images represent food in a more vivid way. Cinemagraphs are a new medium that is intermediate between photographs and videos: most of the frame is static, while some details are animated in a seamless loop, resulting in a vivid viewing experience. On social media...
article 2019
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Dudzik, B. (author), Jansen, M.P. (author), Burger, F. (author), Kaptein, F. (author), Broekens, J. (author), Heylen, D.K.J. (author), Hung, H. (author), Neerincx, M.A. (author), Truong, K.P. (author)
An important aspect of human emotion perception is the use of contextual information to understand others' feelings even in situations where their behavior is not very expressive or has an emotionally ambiguous meaning. For technology to successfully detect affect, it must mimic this human ability when analyzing audiovisual input. Databases upon...
conference paper 2019
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Brouwer, A.M. (author), Stuldreher, I.V. (author), Thammasan, N. (author)
Monitoring directed auditory attention in groups can be helpful in a range of contexts. Concurrent change in physiological variables across multiple listeners (physiological synchrony – PS) may be a suitable marker of attentional focus as caused by shared affective or cognitive processes. We here determine PS for EEG (electroencephalography),...
conference paper 2019
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Toet, A. (author), van Erp, J.B.F. (author)
In a recent study on food-evoked emotions, we observed that people often misunderstood the currently available affective self-report tools. We, therefore, developed a new intuitive and language-independent self-report instrument called the EmojiGrid: a rectangular response grid labeled with facial icons (emoji) that express different degrees of...
article 2019
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Schouten, D.G.M. (author), Venneker, F. (author), Bosse, T. (author), Neerincx, M.A. (author), Cremers, A.H.M. (author)
In this study, we investigate if a digital coach for low-literate learners that provides cognitive learning support based on scaffolding can be improved by adding affective learning support based on motivational interviewing, and social learning support based on small talk. Several knowledge gaps are identified: motivational interviewing and...
article 2018
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van Lier, H.G. (author), Pieterse, M.E. (author), Schraagen, J.M.C. (author), Postel, M.G. (author), Volenbroek-Hutten, M.M.R. (author), de Haan, H.A. (author), Noordzij, M.L. (author)
Background: Substance use is known to be episodic, dynamic, complex, and highly influenced by the environment, therefore a situational and momentary focus to alcohol craving research is appropriate. Current advances in mobile and wearable technology provide novel opportunities for craving research. However, the lack of consensus within craving...
article 2018
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Brouwer, A.M. (author), van Dam, E. (author), van Erp, J.B.F. (author), Spangler, D.P. (author), Brooks, J.R. (author)
Extracting information about emotion from heart rate in real life is challenged by the concurrent effect of physical activity on heart rate caused by metabolic need. “Nonmetabolic heart rate,” which refers to the heart rate that is caused by factors other than physical activity, may be a more sensitive and more universally applicable correlate...
article 2018
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Willemse, C.J.A.M. (author), Heylen, D.K.J. (author), van Erp, J.B.F. (author)
Affective haptic interfaces are designed to influence one’s emotional and physiological state via the sense of touch, and may be applied as communication media to increase the sense of closeness. Recent research suggests that stimulation with physical warmth can enhance this interpersonal closeness: a physical-social warmth link. It is often...
article 2018
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Toet, A. (author), Kaneko, D. (author), Ushiama, S. (author), Hoving, S. (author), de Kruijf, I. (author), Brouwer, A.M. (author), Kallen, V. (author), van Erp, J.B.F. (author)
article 2018
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Brouwer, A.M. (author), van de Water, L. (author), Hogervorst, M.A. (author), Kraaij, W. (author), Schraagen, J.M.C. (author), Hogenelst, K. (author)
Monitoring an individual’s mental state using unobtrusively measured signals is regarded as an essential element in symbiotic human-machine systems. However, it is not straightforward to model the relation between mental state and such signals in real life, without resorting to (unnatural) emotion induction. We recorded heart rate, facial...
conference paper 2018
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Toet, A. (author), van Schaik, M.G. (author), van Erp, J.B.F. (author), Kaneko, D. (author)
Cinemagraphs are a new medium that is intermediate between photographs and videos: most of the frame is static, while some details are animated in a seamless loop. Given their vivid appearance we expected that food cinemagraphs evoke stronger affective and appetitive responses than their static counterparts (stills). In this study we measured...
conference paper 2017
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Willemse, C.J.A.M. (author), Gijsman, G. (author), Jung, M.M. (author), van Erp, J.B.F. (author), Heylen, D.K.J. (author)
In order to advance the understanding of affective touch perceptions, and in particular to inform the design of physical human-robot interactions, an online video study was conducted in which observed stroking touches were assessed on perceived pleasantness. Touches were applied at different velocities and either with a human hand, a robot hand,...
conference paper 2016
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Toet, A. (author), Houtkamp, J.M. (author), Vreugdenhil, P.E. (author)
This study investigated whether personal relevance influences the affective appraisal of a desktop virtual environment (VE) in simulated darkness. In the real world, darkness often evokes thoughts of vulnerability, threat, and danger, and may automatically precipitate emotional responses consonant with those thoughts (fear of darkness). This...
article 2016
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Schreuder, E.J.A. (author), van Erp, J.B.F. (author), Toet, A. (author), Kallen, V.L. (author)
How we perceive our environment affects the way we feel and behave. The impressions of our ambient environment are influenced by its entire spectrum of physical characteristics (e.g., luminosity, sound, scents, temperature) in a dynamic and interactive way. The ability to manipulate the sensory aspects of an environment such that people feel...
article 2016
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van Erp, J.B.F. (author), Heylen, D.K.J. (author)
Gentle stroking touches are rated most pleasant when applied at a velocity of between 1–10 cm/s. Such touches are considered highly relevant in social interactions. Here, we investigate whether stroking sensations generated by a vibrotactile array can produce similar pleasantness responses, with the ultimate goal of using this type of haptic...
conference paper 2016
Searched for: subject:"Affect"
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