Giorgio Coricelli

Giorgio Coricelli
University of Southern California | USC · Economics and Psychology

About

140
Publications
22,432
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
3,966
Citations
Introduction

Publications

Publications (140)
Article
Full-text available
Many types of social interaction require the ability to anticipate others' behavior, which is commonly referred to as strategic sophistication. In this context, observational learning can represent a decisive tool for behavioral adaptation. However, little is known on whether and when individuals learn from observation in interactive settings. In t...
Article
Full-text available
Learning social behaviour of others strongly influences one's own social attitudes. We compare several distinct explanations of this phenomenon, testing their predictions using computational modelling across four experimental conditions. In the experiment, participants chose repeatedly whether to pay for increasing (prosocial) or decreasing (antiso...
Preprint
Learning social behaviour of others strongly influences one’s own social attitudes. We compareseveral distinct explanations of this phenomenon, testing their predictions using computationalmodelling across four experimental conditions. In the experiment, participantschose repeatedly whether to pay for increasing (prosocial) or decreasing (antisocia...
Article
Full-text available
Friendship is commonly assumed to reduce strategic uncertainty and enhance tacit coordination. However, this assumption has never been tested across two opposite poles of coordination involving either strategic complementarity or substitutability. We had participants interact with friends or strangers in two classic coordination games: the stag-hun...
Article
The emotions of regret and relief are mediated by the counterfactual comparison between the obtained and foregone outcomes of our decisions. Regret is strongly associated with a feeling of responsibility for a decision when the outcome might have been better. This may be contrasted with disappointment, which is experienced when the outcome occurs i...
Article
Full-text available
Adaptive coding of stimuli in visual cortex is well documented in perception, where it supports efficient encoding over a broad range of possible percepts. Recently, a similar neural mechanism has been reported also in value-based decision, where it allows optimal encoding of vast ranges of values in PFC: neuronal response to value depends on the c...
Article
Full-text available
In social contexts, we refer to strategic sophistication as the ability to adapt our own behavior based on the possible actions of others. In the current study, we explore the role of other-oriented attention and cognitive reflection in explaining heterogeneity in strategic sophistication. In two eye-tracking experiments, we registered eye movement...
Article
Full-text available
In our everyday life, we often need to anticipate the potential occurrence of events and their consequences. In this context, the way we represent contingencies can determine our ability to adapt to the environment. However, it is not clear how agents encode and organize available knowledge about the future to react to possible states of the world....
Preprint
Full-text available
Adaptive coding of stimuli in visual cortex is well documented in perception, where it supports efficient encoding over a broad range of possible percepts. Recently, a similar neural mechanism has been reported also in value-based decision, where it allows optimal encoding of vast ranges of values in PFC: neuronal response to value depends on the c...
Article
Full-text available
We run an eye-tracking experiment to investigate whether players change their gaze patterns and choices after they experience alternative models of choice in one-shot games. In phase 1 and 3, participants play 2 × 2 matrix games with a human counterpart; in phase 2, they apply specific decision rules while playing with a computer with known behavio...
Article
Full-text available
https://doi.org/10.1162/jocn_a_01372 - Individuals learn by comparing the outcome of chosen and unchosen actions. A negative counterfactual value signal is generated when this comparison is unfavorable. This can happen in private as well as in social settings—where the foregone outcome results from the choice of another person. We hypothesized th...
Preprint
Full-text available
We run an eye-tracking experiment to investigate whether players change their gaze patterns and choices after they experience alternative models of choice in one-shot games. In Phase 1 and 3, participants play 2x2 matrix games with a human counterpart, while in Phase 2 they are asked to apply specific decision rules while playing with a computer al...
Preprint
Full-text available
In social contexts, we refer to strategic sophistication as the ability to adapt our own behavior based on the possible actions of others. Growing experimental evidence has shown that players implement different levels of sophistication in games, as described by hierarchical models of strategic thinking such as Level-k and Cognitive Hierarchy. In t...
Preprint
In our everyday life, we often need to anticipate the potential occurrence of events and their consequences. In this context, the way we represent contingencies can determine our ability to adapt to the environment. However, it is not clear how agents encode and organize available knowledge about the future to react to possible states of the world....
Preprint
Full-text available
In our everyday life, we often need to anticipate the potential occurrence of events and their consequences. In this context, the way we represent contingencies can determine our ability to adapt to the environment. However, it is not clear how agents encode and organize available knowledge about the future to react to possible states of the world....
Poster
Full-text available
Methods for measuring the confidence with which people make decisions, have traditionally relied on post-decision self-reports. We wanted to: 1) develop a new experimental paradigm that aims at measuring the confidence in a decision without participants having to explicitly rate their confidence, 2) characterize their decision using fMRI, and 3) sh...
Article
Full-text available
In economics and perceptual decision-making contextual effects are well documented, where decision weights are adjusted as a function of the distribution of stimuli. Yet, in reinforcement learning literature whether and how contextual information pertaining to decision states is integrated in learning algorithms has received comparably little atten...
Presentation
Full-text available
OBJECTIVE: When we make a decision, usually we experience its consequences but we have no information about potential outcomes of alternative decisions we could have made. Yet, this additional information is useful to improve learning (e.g., Palminteri et al., 2015). In this study, we analyzed brain activity related to outcome processing in loss an...
Poster
Full-text available
Objective: Methods for measuring the confidence with which people make decisions, have traditionally relied on post-decision self-reports. These studies of confidence have found neural correlates of confidence in several areas including rostrolateral prefrontal cortex (De Martino et al., 2013), dorsal and anterior medial prefrontal cortex, bilatera...
Article
Full-text available
Background: Binge eating is apparently the opposite of the strict control over food intake typically set by "maladaptive dieters". Using functional magnetic resonance imaging (fMRI), we investigated the role of goal-directed behaviors, and the related use of self-control, in binge-related food choices in patients with Bulimia Nervosa (BN). Method...
Preprint
Full-text available
Social interactions rely on our ability to learn and adjust our behavior to the behavior of others. Strategic games provide a useful framework to study the cognitive processes involved in the formation of beliefs about the others’ intentions and behavior, what we may call strategic theory of mind. Through the years, the growing field of behavioral...
Poster
Full-text available
In everyday life, we are constantly confronted with decisions. Usually, we can only experience the consequence of the decision we made and not of alternative decisions we could have made. However, knowing this additional information has a positive effect on learning. While the cognitive and neural mechanisms underlying actual outcomes processing wh...
Preprint
Full-text available
We use eye-tracking to identify possible causes of inconsistency between choices and beliefs in games. Participants play a series of two-player 3x3 one-shot games (choice task) and state their beliefs about which actions they expect their counterpart to play (belief elicitation task). Beliefs are elicited by asking participants to assign a probabil...
Article
Full-text available
Studies in cultural evolution have uncovered many types of social learning strategies that are adaptive in certain environments. The efficiency of these strategies also depends on the individual characteristics of both the observer and the demonstrator. We investigate the relationship between intelligence and the ways social and individual informat...
Preprint
In economics and in perceptual decision-making contextual effects are well documented, where decision weights are adjusted as a function of the distribution of stimuli. Yet, in reinforcement learning literature whether and how contextual information pertaining to decision states is integrated in learning algorithms has received comparably little at...
Preprint
Full-text available
In economics and in perceptual decision-making contextual effects are well documented, where decision weights are adjusted as a function of the distribution of stimuli. Yet, in reinforcement learning literature whether and how contextual information pertaining to decision states is integrated in learning algorithms has received comparably little at...
Article
Full-text available
This paper describes an experimental study that yields evidence for the coexistence of two decision strategies of choice under risk. Under the first strategy, choices are made based on aspiration levels – a heuristic that simplifies risky decisions. Under the second strategy, which can be used when aspiration levels are not determinative, choices a...
Article
Full-text available
Uncertainty in the form of risk or ambiguity can arise from the interaction with nature and other players, while strategic uncertainty arises only in interactions with others. Here, we systematically compare binary decisions between a safe option and a potentially higher paying but uncertain option in four experimental conditions with the same pote...
Preprint
Full-text available
Studies on social learning have uncovered a variety of settings in which it is adaptive to pay attention to observed actions of others. However, an open question is how social information is integrated with personal experience. We investigate the relationship between intelligence and the ways social and individual information is utilised to make de...
Article
Full-text available
In social interactions, strategic uncertainty arises when the outcome of one's choice depends on the choices of others. An important question is whether strategic uncertainty can be resolved by assessing subjective probabilities to the counterparts' behavior, as if playing against nature, and thus transforming the strategic interaction into a risky...
Article
Full-text available
The dopamine partial agonist aripiprazole is increasingly used to treat pathologies for which other antipsychotics are indicated because it displays fewer side effects, such as sedation and depression-like symptoms, than other dopamine receptor antagonists. Previously, we showed that aripiprazole may protect motivational function by preserving rein...
Preprint
In our everyday life, we often need to anticipate the potential occurrence of events and their respective consequences. In this context, the way we represent contingencies can determine our ability to adapt to the environment. However, it is not clear how agents encode and organize relevant information to react to possible states of the world. In t...
Poster
Full-text available
Most of real life interactions are repeated, rather than isolated, encounters. Such repeated strategic interactions are modeled in game theory (GT) as stochastic games, where the players play a sequence of different single--‐shot game. GT assumes that players choose actions in a game according to strategies. The aim of this study is to identify neu...
Chapter
Full-text available
This chapter is about the application of methods from psychophysics to the investigation of experimental game theory. We show how methods from psychophysics-including the analysis of reaction time, mouse-lab and eye-tracking,-can be used to improve our understanding of experimental game theory. The main goal of this chapter is to provide a balanced...
Article
The dopamine partial agonist aripiprazole is increasingly used to treat pathologies for which other antipsychotics are indicated because it displays fewer side efects, such as sedation and depression-like symptoms, than other dopamine receptor antagonists. Previously, we showed that aripiprazole may protect motivational function by preserving reinf...
Article
Full-text available
We use eye-tracking technique to test whether players' actions are consistent with their expectations of the counterpart's behavior. Participants play a series of two-player 3x3 one-shot games and state their beliefs about which actions they expect their counterpart to play. We perform a mixed model cluster analysis and classify participants into t...
Chapter
Full-text available
This chapter is about the application of methods from psychophysics to the investigation of experimental game theory. We show how methods from psychophysics-including the analysis of reaction time, mouse-tracking and eye-tracking,-can be used to improve our understanding of experimental game theory. The main goal of this chapter is to provide a bal...
Preprint
Full-text available
The dopamine partial agonist aripiprazole is increasingly used to treat pathologies for which other antipsychotics are indicated because it displays fewer side effects, such as sedation and depression-like symptoms, than other dopamine receptor antagonists. Previously, we showed that aripiprazole may protect motivational function by preserving rein...
Article
Full-text available
Background and Objectives A sizeable proportion of patients experiencing binge eating do not respond to cognitive behavioral therapy (CBT). We present the sequential binge (SB), a new behavioral intervention that complements CBT, and preliminary results of its effects. SB breaks up the binge into repeated identical sequences of eating separated by...
Article
Full-text available
Adolescence is a period of life characterised by changes in learning and decision-making. Learning and decision-making do not rely on a unitary system, but instead require the coordination of different cognitive processes that can be mathematically formalised as dissociable computational modules. Here, we aimed to trace the developmental time-cours...
Article
Full-text available
We study experimentally how people learn from observing the choices of others in a non-stationary stochastic environment. The imitation choices of participants with low score in an intelligence test are driven solely by the value of imitation. High intelligence score participants , in addition, use choices of others to better understand the environ...
Article
Full-text available
Binge eating has been usually viewed as a loss of control and an impulsive behavior. But, little is known about the actual behavior of binging patients (prevalently women) in terms of basic decision-making under risk or under uncertainty. In healthy women, stressful cues bias behavior for safer options, raising the question of whether food cues tha...
Article
Binge eating has been usually viewed as a loss of control and an impulsive behavior. But, little is known about the actual behavior of binging patients (prevalently women) in terms of basic decision-making under risk or under uncertainty. In healthy women, stressful cues bias behavior for safer options, raising the question of whether food cues tha...
Article
Full-text available
The unfavorable comparison between the obtained and expected outcomes of our choices may elicit disappointment. When the comparison is made with the outcome of alternative actions, emotions like regret can serve as a learning signal. Previous work showed that both anticipated disappointment and regret influence decisions. In addition, experienced r...
Article
This article adopts a neuroeconomics perspective on the study of the neural computations of human social interaction. Reported findings support a cognitive hierarchy model of human brain and behavior, according to which people use different levels of strategic thinking that are associated with specific neural computations. A higher level is associa...
Article
Full-text available
A significant proportion of eating disorder patients experiencing binge eating do not respond to cognitive behavioral therapies (CBT). Here, we present a new behavioral technique, the sequential binge (SB) that aims at reducing both food intake during binges and daily binge numbers. Specifically, SB replaces the usual pattern of food ingestion duri...
Article
Full-text available
We used eye-tracking to measure the dynamic patterns of visual information acquisition in two-player normal-form games. Participants played one-shot games in which either, neither, or only one of the players had a dominant strategy. First, we performed a mixture models cluster analysis to group participants into types according to the pattern of vi...
Chapter
Full-text available
Neuroeconomics is a new discipline that integrates economics, psychology and neuroscience. It combines economic and psychological theories with neuroscientific methodologies. The use of neuroimaging, single-cell recording and other methods from neuroscience has allowed the study of the neural correlates of basic economic and psychological concepts....
Article
Full-text available
Compared with reward seeking, punishment avoidance learning is less clearly understood at both the computational and neurobiological levels. Here we demonstrate, using computational modelling and fMRI in humans, that learning option values in a relative— context-dependent—scale offers a simple computational solution for avoidance learning. The cont...
Article
Full-text available
Homophily, or "love for similar others," has been shown to play a fundamental role in the formation of interpersonal ties and social networks. Yet no study has investigated whether perceived similarities can affect tacit coordination. We had 68 participants attempt to maximize real monetary earnings by choosing between a safe but low paying option...
Article
Anatomical, clinical, and neuroimaging evidence implicates the cerebellum in processing emotions and feelings. Moreover recent studies showed a cerebellar involvement in pathologies such as autism, schizophrenia and alexithymia, in which emotional processing have been found altered. However, cerebellar function in the modulation of emotional respon...
Article
Full-text available
To learn to deal with the unexpected is essential to adaptation to a social, therefore often unpredictable environment. Fourteen adults with autism spectrum disorders (ASD) and 15 controls underwent a decision-making task aimed at investigating the influence of either a social or a non-social environment, and its interaction with either a stable (w...