•  58
    A narrative review of the active ingredients in psychotherapy delivered by conversational agents
    with Arthur Herbener and Malene Flensborg Damholdt A. Show More
    Computers in Human Behavior Reports 14. 2024.
    The present narrative review seeks to unravel where we are now, and where we need to go to delineate the active ingredients in psychotherapy delivered by conversational agents (e.g., chatbots). While psychotherapy delivered by conversational agents has shown promising effectiveness for depression, anxiety, and psychological distress across several randomized controlled trials, little emphasis has been placed on the therapeutic processes in these interventions. The theoretical framework of this n…Read more
  •  223
    Uses and Abuses of AI Ethics
    In David J. Gunkel (ed.), Handbook of the Ethics of AI, Edward Elgar Publishing. forthcoming.
    In this chapter we take stock of some of the complexities of the sprawling field of AI ethics. We consider questions like "what is the proper scope of AI ethics?" And "who counts as an AI ethicist?" At the same time, we flag several potential uses and abuses of AI ethics. These include challenges for the AI ethicist, including what qualifications they should have; the proper place and extent of futuring and speculation in the field; and the dilemmas concerning how we use our public and academic …Read more
  •  259
    Tracking Early Differences in Tetris Perfomance Using Eye Aspect Ratio Extracted Blinks
    with Gianluca Guglielmo, Elisabeth Huis in 'T. Veld, and Pieter Spronck
    IEEE Transactions on Games 1 1-8. 2023.
    This study aimed to evaluate if eye blinks can be used to discriminate players with different performance in a session of Nintendo Entertainment System (NES) Tetris. To that end, we developed a state-of-the-art method for blink extraction from EAR measures, which is robust enough to be used with data collected by a low-grade webcam such as the ones widely available on laptop computers. Our results show a significant decrease in blink rate per minute (blinks/m) during the first minute of playing …Read more
  •  9
    Out of the Maze: Investigating Fluid Intelligence and Numeracy as Predictive Factors of Planning Skills Using Video Games
    with Gianluca Guglielmo, Elisabeth Huis in 'T. Veld, and Pieter Spronck
    In Kristian Kiili, Koskinen Antti, Francesca de Rosa, Muhterem Dindar, Michael Kickmeier-Rust & Francesco Bellotti (eds.), Games and Learning Alliance. GALA 2022. Lecture Notes in Computer Science, vol 13647., Springer International Publishing. pp. 202--211. 2022.
    The aim of this study was to test whether an online video game can be used to investigate planning ability and whether fluid intelligence, objective numeracy, and subjective numeracy are predictive of game performance. Our results demonstrate that fluid intelligence is particularly important, which is in line with previous non-game-based studies that show a relationship between classical planning tests and fluid intelligence. Video games have been previously used for research into cognitive proc…Read more
  •  131
    Predicting Tetris Performance Using Early Keystrokes
    with Gianluca Guglielmo, Elisabeth Huis in 'T. Veld, and Pieter Spronck
    Fdg '23: Proceedings of the 18Th International Conference on the Foundations of Digital Games 46 1-4. 2023.
    In this study, we predict the different levels of performance in a Nintendo Entertainment System (NES) Tetris session based on the score and the number of matches played by the players. Using the first 45 seconds of gameplay, a Random Forest Classifier was trained on the five keys used in the game obtaining a ROC_AUC score of 0.80. Further analysis revealed that the number of down keys (forced drop) and the number of left keys (left translation) are the most relevant keys in this task, showing t…Read more
  •  1112
    Drugs and Hugs: Stimulating Moral Dispositions as a Method of Moral Enhancement
    Royal Institute of Philosophy Supplement 83 329-350. 2018.
    Advocates of moral enhancement through pharmacological, genetic, or other direct interventions sometimes explicitly argue, or assume without argument, that traditional moral education and development is insufficient to bring about moral enhancement. Traditional moral education grounded in a Kohlbergian theory of moral development is indeed unsuitable for that task; however, the psychology of moral development and education has come a long way since then. Recent studies support the view that mora…Read more
  •  1882
    In this chapter we identify three potentially morally problematic behaviours that are common among users of dating and hook-up apps (DHAs) and provide arguments as to why they may or may not be considered (a) in a category of their own, distinct from similar behaviours outside of DHAs; (b) caused or facilitated by affordances and business logic of DHAs; (c) as indeed morally wrong. We also consider ways in which morally problematic behaviours can be anticipated, mitigated, or even prevented by a…Read more
  •  200
    Blink To Win: Blink Patterns of Video Game Players Are Connected to Expertise
    with Gianluca Guglielmo, Paris Mavromoustakos Blom, Michał Klincewicz, Elisabeth Huis in 'T. Veld, and Pieter Spronck
    ACM 17th International Conference on the Foundations of Digital Games (FDG) 12. 2022.
    In this study, we analyzed the blinking behavior of players in a video game tournament. Our aim was to test whether spontaneous blink patterns differ across levels of expertise. We used blink rate, blink duration, blink frequency, and eyelid movements represented by the Eye Aspect Ratio (EAR) to train a machine learning classifier to discriminate between different levels of expertise. Classifier performance was highly influenced by features such as the mean, standard deviation and median EAR. Mo…Read more
  •  1
    The perceived duration of an interval depends on numerous aspects of the passed event both endogenous, including physiological arousal, level of wakefulness, attention, and surprise, as well as exogenous such as valence, salience, or context in the environment. There is some evidence that "time-giving" cues from the environment (zeitgebers) are coupled with time perception. The movement of the sun on the horizon was demonstrated to affect interval perception in a study conducted by Schatzschneid…Read more
  •  290
    Face in the Game: Using Facial Action Units to Track Expertise in Competitive Video Game Play
    with Gianluca Guglielmo, Paris Mavromoustakos Blom, Michał Klincewicz, Boris Čule, and Pieter Spronck
    In IEEE Transactions on Games (Conference on Games 2022, Beijing, China), Acm. 2022.
    In this study, we extracted facial action units (AUs) data during a Hearthstone tournament to investigate behavioural differences between expert, intermediate, and novice players. Our aim was to obtain insights into the nature of expertise and how it may be tracked using non-invasive methods such as AUs. These insights may shed light on the endogenous responses in the player and at the same time may provide information to the opponents during a competition. Our results show that player expertise…Read more
  •  313
    Institutional Trust in Medicine in the Age of Artificial Intelligence
    In David Collins, Mark Alfano & Iris Jovanovic (eds.), The Moral Psychology of Trust, Rowman and Littlefield/lexington Books. 2023.
    It is easier to talk frankly to a person whom one trusts. It is also easier to agree with a scientist whom one trusts. Even though in both cases the psychological state that underlies the behavior is called ‘trust’, it is controversial whether it is a token of the same psychological type. Trust can serve an affective, epistemic, or other social function, and comes to interact with other psychological states in a variety of ways. The way that the functional role of trust changes across contexts a…Read more
  •  584
    Ethical Issues with Artificial Ethics Assistants
    with Elizabeth O'Neill and Michiel Kemmer
    In Carissa Véliz (ed.), The Oxford Handbook of Digital Ethics, Oxford University Press. 2023.
    This chapter examines the possibility of using AI technologies to improve human moral reasoning and decision-making, especially in the context of purchasing and consumer decisions. We characterize such AI technologies as artificial ethics assistants (AEAs). We focus on just one part of the AI-aided moral improvement question: the case of the individual who wants to improve their morality, where what constitutes an improvement is evaluated by the individual’s own values. We distinguish three broa…Read more
  •  540
    Vertrouwen in de geneeskunde en kunstmatige intelligentie
    with Lily Frank
    Podium Voor Bioethiek 3 (28): 37-42. 2021.
    Kunstmatige intelligentie (AI) en systemen die met machine learning (ML) werken, kunnen veel onderdelen van het medische besluitvormingsproces ondersteunen of vervangen. Ook zouden ze artsen kunnen helpen bij het omgaan met klinische, morele dilemma’s. AI/ML-beslissingen kunnen zo in de plaats komen van professionele beslissingen. We betogen dat dit belangrijke gevolgen heeft voor de relatie tussen een patiënt en de medische professie als instelling, en dat dit onvermijdelijk zal leiden tot uith…Read more
  •  124
    Using Deep Learning to Detect Facial Markers of Complex Decision Making
    with Gianluca Guglielmo and Irene Font Peradejordi
    In C. Browne, A. Kishimoto & J. Schaeffer (eds.), Advances in Computer Games. ACG 2021. Lecture Notes in Computer Science, Springer. pp. 187-196. 2022.
    In this paper, we report on an experiment with The Walking Dead (TWD), which is a narrative-driven adventure game where players have to survive in a post-apocalyptic world filled with zombies. We used OpenFace software to extract action unit (AU) intensities of facial expressions characteristic of decision-making processes and then we implemented a simple convolution neural network (CNN) to see which AUs are predictive of decision-making. Our results provide evidence that the pre-decision variat…Read more
  •  692
    The Ethics of Matching: Mobile and web-based dating and hook up platforms
    with Lily E. Frank and Emma Jane
    In Brian D. Earp, Clare Chambers & Lori Watson (eds.), Routledge Handbook of Philosophy of Sex and Sexuality, Routledge. 2022.
    Dating and hookup apps (DHAs) are now widely used and may be transforming our intimate relationships. The apps are beneficial in fostering intimate connections among those who are lonely, who are members of minority or marginalized groups, or who live nomadic lifestyles because of work or recreational travel. However, the wider social and relational changes that DHAs portend are merely beginning to be seriously discussed by academics (Arias et al., 2017). In this chapter, we employ concepts from…Read more
  •  324
    In this paper, we report on an experiment with The Walking Dead (TWD), which is a narrative-driven adventure game with morally charged decisions set in a post-apocalyptic world filled with zombies. This study aimed to identify physiological markers of moral decisions and non-moral decisions using infrared thermal imaging (ITI). ITI is a non-invasive tool used to capture thermal variations due to blood flow in specific body regions that might be caused by sympathetic activity. Results show that m…Read more
  •  1061
    Autonomous Weapon Systems, Asymmetrical Warfare, and Myth
    Civitas. Studia Z Filozofii Polityki 23 179-195. 2018.
    Predictions about autonomous weapon systems are typically thought to channel fears that drove all the myths about intelligence embodied in matter. One of these is the idea that the technology can get out of control and ultimately lead to horrifi c consequences, as is the case in Mary Shelley’s classic Frankenstein. Given this, predictions about AWS are sometimes dismissed as science-fiction fear-mongering. This paper considers several analogies between AWS and other weapon systems and ultimately…Read more
  •  331
    Causal Inferences in Repetitive Transcranial Magnetic Stimulation Research: Challenges and Perspectives
    with Justyna Hobot, Kristian Sandberg, and Michał Wierzchoń
    Frontiers in Human Neuroscience 14 574. 2021.
    Transcranial magnetic stimulation is used to make inferences about relationships between brain areas and their functions because, in contrast to neuroimaging tools, it modulates neuronal activity. The central aim of this article is to critically evaluate to what extent it is possible to draw causal inferences from repetitive TMS data. To that end, we describe the logical limitations of inferences based on rTMS experiments. The presented analysis suggests that rTMS alone does not provide the sort…Read more
  •  302
    Consequences of unexplainable machine learning for the notions of a trusted doctor and patient autonomy
    with Lily Frank
    Proceedings of the 2nd EXplainable AI in Law Workshop (XAILA 2019) Co-Located with 32nd International Conference on Legal Knowledge and Information Systems (JURIX 2019). 2020.
    This paper provides an analysis of the way in which two foundational principles of medical ethics–the trusted doctor and patient autonomy–can be undermined by the use of machine learning (ML) algorithms and addresses its legal significance. This paper can be a guide to both health care providers and other stakeholders about how to anticipate and in some cases mitigate ethical conflicts caused by the use of ML in healthcare. It can also be read as a road map as to what needs to be done to achieve…Read more
  •  1045
    Robotic Nudges for Moral Improvement through Stoic Practice
    Techné: Research in Philosophy and Technology 23 (3): 425-455. 2019.
    This paper offers a theoretical framework that can be used to derive viable engineering strategies for the design and development of robots that can nudge people towards moral improvement. The framework relies on research in developmental psychology and insights from Stoic ethics. Stoicism recommends contemplative practices that over time help one develop dispositions to behave in ways that improve the functioning of mechanisms that are constitutive of moral cognition. Robots can nudge individua…Read more
  •  1141
    Making metaethics work for AI: realism and anti-realism
    In Mark Coeckelbergh, M. Loh, J. Funk, M. Seibt & J. Nørskov (eds.), Envisioning Robots in Society – Power, Politics, and Public Space, . pp. 311-318. 2018.
    Engineering an artificial intelligence to play an advisory role in morally charged decision making will inevitably introduce meta-ethical positions into the design. Some of these positions, by informing the design and operation of the AI, will introduce risks. This paper offers an analysis of these potential risks along the realism/anti-realism dimension in metaethics and reveals that realism poses greater risks, but, on the other hand, anti-realism undermines the motivation for engineering a mo…Read more
  •  367
    Understanding Perception of Time in Terms of Perception of Change
    Procedia - Social and Behavioral Sciences 126 58-63. 2014.
    In this paper, I offer an account of the dependence relation between perception of change and the subjective flow of time that is consistent with some extant empirical evidence from priming by unconscious change. This view is inspired by the one offered by William James, but it is articulated in the framework of contemporary functionalist accounts of mental qualities and higher-order theories of consciousness. An additional advantage of this account of the relationship between perception of chan…Read more
  • Challenges to engineering moral reasoners : time and context
    In Patrick Lin, Keith Abney & Ryan Jenkins (eds.), Robot Ethics 2.0: From Autonomous Cars to Artificial Intelligence, Oxford University Press. pp. 244-259. 2017.
    Programming computers to engage in moral reasoning is not a new idea (Anderson and Anderson 2011a). Work on the subject has yielded concrete examples of computable linguistic structures for a moral grammar (Mikhail 2007), the ethical governor architecture for autonomous weapon systems (Arkin 2009), rule-based systems that implement deontological principles (Anderson and Anderson 2011b), systems that implement utilitarian principles, and a hybrid approach to programming ethical machines (Wallach …Read more
  •  241
    It is not clear to what the projects of creating an artificial intelligence (AI) that does ethics, is moral, or makes moral judgments amounts. In this paper we discuss some of the extant metaethical theories and debates in moral philosophy by which such projects should be informed, specifically focusing on the project of creating an AI that makes moral judgments. We argue that the scope and aims of that project depend a great deal on antecedent metaethical commitments. Metaethics, therefore, pla…Read more
  •  369
    Quality Space Model of Temporal Perception
    Lecture Notes in Computer Science 6789 (Multidisciplinary Aspects of Tim): 230-245. 2010.
    Quality Space Theory is a holistic model of qualitative states. On this view, individual mental qualities are defined by their locations in a space of relations, which reflects a similar space of relations among perceptible properties. This paper offers an extension of Quality Space Theory to temporal perception. Unconscious segmentation of events, the involvement of early sensory areas, and asymmetries of dominance in multi-modal perception of time are presented as evidence for the view.