A5034029249- Neural and Behavioral Psychology Studies
- Decision-Making and Behavioral Economics
- Neural dynamics and brain function
- Cognitive Science and Mapping
- Behavioral and Psychological Studies
- Behavioral Health and Interventions
- Autism Spectrum Disorder Research
- Evolutionary Algorithms and Applications
- Reinforcement Learning in Robotics
- Anthropological Studies and Insights
- Economic and Environmental Valuation
- Visual perception and processing mechanisms
- Forecasting Techniques and Applications
- Law in Society and Culture
- Olfactory and Sensory Function Studies
- Mental Health Research Topics
- Evolutionary Game Theory and Cooperation
- Complex Systems and Time Series Analysis
- Environmental Education and Sustainability
- Machine Learning in Bioinformatics
- Ecosystem dynamics and resilience
- Aesthetic Perception and Analysis
- Advanced Multi-Objective Optimization Algorithms
- Cognitive and developmental aspects of mathematical skills
- Psychology of Moral and Emotional Judgment
London School of Economics and Political Science
2019-2023
University of Bergen
2019-2022
University of Sheffield
2014-2019
Peking University
2018
Chinese Institute for Brain Research
2018
Complex natural systems from brains to bee swarms have evolved make adaptive multifactorial decisions. Recent theoretical and empirical work suggests that many may take advantage of common motifs across multiple domains. We are particularly interested in value sensitivity (i.e., the magnitude or intensity stimuli reward under consideration) as a mechanism resolve deadlocks adaptively. This favours long-term maximization over accuracy simple manner, because it avoids costly delays associated...
OPINION article Front. Neurosci., 10 April 2014Sec. Decision Neuroscience Volume 8 - 2014 | https://doi.org/10.3389/fnins.2014.00073
Does competition affect moral behavior? This fundamental question has been debated among leading scholars for centuries, and more recently, it tested in experimental studies yielding a body of rather inconclusive empirical evidence. A potential source ambivalent results on the same hypothesis is design heterogeneity-variation true effect sizes across various reasonable research protocols. To provide further evidence whether affects behavior to examine generalizability single study...
Objective: Two-alternative forced-choice tasks are widely used to gain insight into specific areas of enhancement or impairment in individuals with autism spectrum disorder (ASD).Data arising from these have been support myriad theories regarding the integrity, otherwise, particular brain cognitive processes ASD.The drift diffusion model (DDM) provides an account underlying which give rise accuracy and reaction time distributions, parameterises terms direct psychological...
Abstract Response time and accuracy are fundamental measures of behavioral science, but discerning participants’ underlying abilities can be masked by speed–accuracy trade-offs (SATOs). SATOs often inadequately addressed in experiment analyses which focus on a single variable or involve suboptimal analytic correction. Models decision-making, such as the drift diffusion model (DDM), provide principled account decision-making process, allowing recovery SATO-unconfounded decision parameters...
Scientific discovery is a driving force for progress involving creative problem-solving processes to further our understanding of the world. The process scientific has historically been intensive and time-consuming; however, advances in computational power algorithms have provided an efficient route make new discoveries. Complex tools using artificial intelligence (AI) can efficiently analyze data as well generate hypotheses theories. Along with AI becoming increasingly prevalent daily lives...
Children with and without ASD performed an orientation discrimination task, in which the difficulty of was equated across individuals. Behavioural results showed that subjects were slower making a decision. A computational decomposition data modelled parameters indicated that: (i) participants adopted more conservative response criterion (ii) motor did not differ between groups. Our confirm differences reaction times (RTs) and/or accuracy may be related to conservativeness rather than...
Abstract The purpose of the present note is to draw attention potential role a recently discovered visual illusion in creating traffic accidents. consists compelling and immediate experience that space behind an occluding object foreground empty. Although refers region space, which invisible due occlusion (a blind spot), there evidence suggest it nevertheless driven by mechanisms can be just as deceptive powerful ordinary illusions. We this novel make situations involving spots road user's...
Previous research has reported or predicted, on the basis of theoretical and computational work, magnitude sensitive reaction times. Magnitude sensitivity can arise (1) as a function single-trial dynamics and/or (2) recent work suggested, while may be insensitive, could overall reward received which in turn affects speed at decision boundaries collapse, allowing faster responses increases. Here, we review previous empirical results present new evidence for arising dynamics. The result times...
Recent research has shown that adults and children with autism spectrum disorders have a more conservative decision criterion in perceptual making compared to neurotypical individuals, meaning autistic participants prioritise accuracy over speed of decision. Here, we test whether traits the population correlate increased response conservativeness. We employed three different tasks; for two tasks recruited from China ( N = 39) one task United Kingdom 37). Our results show do not predict...
Response time and accuracy are fundamental measures of behavioural science, but discerning participants’ underlying abilities can be masked by speed-accuracy trade-offs (SATOs). Although a well-known possibility, SATOs often inadequately addressed in experiment analyses which focus on single variable (e.g. psychophysics paradigms analysing alone), or involve suboptimal analytic correction dividing response time). Models decision making, such as the drift diffusion model (DDM), provide...
Choices in value-based decision making are affected by the magnitude of alternatives (i.e. summed values options). Magnitude sensitivity has been instrumental discriminating between computational models choice. Smith and Krajbich [(2019a). Gaze amplifies value making. Psychological Science, 30(1), 116–128. https://doi.org/10.1177/0956797618810521] have shown that attentional drift-diffusion model (aDDM) can account for sensitivity. This is because discount parameter on nonfixated alternative...
Optimality analysis of value-based decisions in binary and multi-alternative choice settings predicts that reaction times should be sensitive only to differences stimulus magnitudes, but not overall absolute magnitude. Yet experimental work the case has shown magnitude times, theory shows this can explained by switching from linear multiplicative time costs, also nonlinear subjective utility. Thus disentangling explanations for observed is difficult. Here first we extend theoretical...
Cultural logic is a set of cultural scripts and patterns organized around central theme. The logics dignity, honor, face describe different ways evaluating person’s worth maintaining cooperation. These vary in prevalence across cultures. In this study, we collaboratively develop validate measure capturing these logics, which will allow us to map world cultures based on the logics. We further explore interrelations with prosocial behavior, values, moral beliefs, religiosity as well examine...
Cultural logic is a set of cultural scripts and patterns organized around central theme. The logics dignity, honor, face describe different ways evaluating person’s worth maintaining cooperation. These vary in prevalence across cultures. In this study, we collaboratively develop validate measure capturing these logics, which will allow us to map world cultures based on the logics. We further explore interrelations with prosocial behavior, values, moral beliefs, religiosity as well examine...
Abstract Recent work has derived the optimal policy for two-alternative value-based decisions, in which decision-makers compare subjective expected reward of two alternatives. Under specific task assumptions — such as linear utility, cost time and constant processing noise is implemented by a diffusion process parallel decision thresholds collapse over function prior knowledge about average across trials. This predicts that dynamics each trial are dominated difference value between...
The semantic congruity effect refers to the facilitation of judgements (i) when direction comparison two items coincides with relative position along dimension or (ii) size a standard and target stimulus coincides. For example, people are faster in judging 'which is bigger?' for large items, than smaller?' (selection paradigm). Also, as smaller compared small standard, vice versa (classification We use Drift Diffusion Model (DDM) explain time course classification paradigm. Formal modelling...
This research examines how various factors, such as the degree of e-privacy concerns and control over data access permissions, can influence a user's intention to install smartphone app. We conducted two survey-based experiments with 441 participants. In each experiment, we manipulated number type permissions granted different fictional apps. Study 1, participants were informed about set apps required. 2, indicated which individual they willing grant both experiments, assessed level...
Abstract. An important way to develop models in psychology and cognitive science is express them as computer programs. However, computational modeling not an easy task. To address this issue, some have proposed using artificial-intelligence (AI) techniques, such genetic programming (GP) semiautomatically generate models. In paper, we establish whether used data can be recovered when GP evolves accounting for data. As example, use experiment from decision-making which addresses a central...
Abstract Optimality analysis of value-based decisions in binary and multi-alternative choice settings predicts that reaction times should be sensitive only to differences stimulus magnitudes, but not overall absolute magnitude. Yet experimental work the case has shown magnitude times, theory shows this can explained by switching from linear geometric time costs, also nonlinear subjective utility. Thus disentangling explanations for observed is difficult. Here first we extend theoretical...