Dana Samson

Dana Samson
Université Catholique de Louvain - UCLouvain | UCLouvain · Psychological Sciences Research Institute

About

87
Publications
32,303
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4,889
Citations
Citations since 2016
22 Research Items
2716 Citations
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20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
20162017201820192020202120220100200300400
Introduction
Skills and Expertise

Publications

Publications (87)
Article
Full-text available
Narcissism is a prevalent personality trait associated with low concern for others and high self-focus. Congruently, reduced automatic imitation in narcissists was reported in one study (23 participants), but it was not replicated in another (57 participants). In this study, 100 participants completed the previously used narcissism and automatic im...
Article
Full-text available
Theory of mind (ToM), the ability to understand that other agents have different beliefs, desires, and knowledge than oneself, has been extensively researched. Theory of mind tasks involve participants dealing with interference between their self-perspective and another agent’s perspective, and this interference has been related to executive functi...
Article
Full-text available
Moral judgements are crucial for social life and rely on the analysis of the agent’s intention and the outcome of the agent’s action. The current study examines to the influence of how the information is presented on moral judgement. The first experiment investigated the effects of the order in which intention and outcome information was presented....
Article
Full-text available
Every day, we engage in social interactions with other people which require understanding their as well as our own mental states. Such capacity is commonly referred to as Theory of Mind (ToM). Disturbances of ToM are often reported in diverse pathologies which affect brain functioning and lead to problems in social interactions. Identifying ToM def...
Article
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A metaheuristic proposed by us recently, Ant Colony Optimization (ACO) hybridized with socio-cognitive inspirations, turned out to generate interesting results when compared to classic ACO. Even though it does not always find better solutions to the considered problems, it usually finds sub-optimal solutions. Moreover, instead of a trial-and-error...
Article
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The frequency-tagging approach has generally been confined to study low-level sensory processes and always found related activation over the occipital region. Here for the first time, we investigated with it, high-level socio-cognitive functions i.e. the processing of what other people are looking at which is referred to as level 1 visual perspecti...
Article
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A growing body of evidence suggests that adults can monitor other people’s beliefs in an efficient way. However, the nature and the limits of efficient belief tracking are still being debated. The present study addressed these issues by testing (a) whether adults spontaneously process other people’s beliefs when overt task instructions assign prior...
Article
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Total sleep deprivation (TSD) is known to alter cognitive processes. Surprisingly little attention has been paid to its impact on social cognition. Here, we investigated whether TSD alters levels-1 and -2 visual perspective-taking abilities, i.e. the capacity to infer (a) what can be seen and (b) how it is seen from another person's visual perspect...
Article
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This study aimed to test whether individual differences in perspective taking could be explained with two underpinning cognitive dimensions: The ability to handle the conflict between our egocentric perspective and another person’s perspective and the relative attentional focus during processing on the egocentric perspective versus another person’s...
Article
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In the paper a modification of a Socio-cognitive Particle Swarm Optimization algorithm, recently proposed by the authors, is presented. This modification consists in devising a mechanism for dynamic adaptation of the population structure of the swarm. Besides the design and rationale for the approach, referring to the state-of-the-art PSO original...
Article
Recently we proposed an application of Ant Colony Optimization (ACO) to simulate socio-cognitive features of a population, incorporating perspective-taking ability to generate differently acting ant colonies. Although our main goal was simulation, we took advantage of the fact that the quality of the constructed system was evaluated based on select...
Article
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Recently, a few transcranial magnetic stimulation (TMS) or transcranial direct current stimulation (tDCS) studies have shown that the right temporo-parietal junction (rTPJ) plays a causal role in moral reasoning especially in cases of accidental harms or failed attempted harms. The profile of results across studies is however not entirely consisten...
Article
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Efficient social interactions require taking into account other people’s mental states such as their beliefs, intentions or emotions. Recent studies have shown that in some social situations at least, we do spontaneously take into account others’ mental states. The extent to which we have dedicated brain areas for such spontaneous perspective takin...
Article
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Following recently published socio-cognitively inspired ACO concept for global optimization, we try to verify the proposed idea by adapting the PSO in a similar way. The swarm is divided into species and the particles get inspired not only by the global and local optima, but share the knowledge about the optima with neighbourhood agents belonging t...
Article
Thinking about how other people represent objects in the world around them is thought to require deliberate effort. In recent years, interactive “joint action” paradigms have shown how social context can affect our cognitive processing. We tested whether people would represent their partner’s point of view in a simple team game. Participants played...
Conference Paper
Full-text available
In our recent research, we implemented an enhancement of Ant Colony Optimization incorporating the socio-cognitive dimension of perspective taking. Our initial results suggested that increasing the diversity of ant population — introducing different pheromones, different species and dedicated inter-species relations — yielded better results. In thi...
Article
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Two paradigms have shown that people automatically compute what or where another person is looking at. In the visual perspective-taking paradigm, participants judge how many objects they see; whereas, in the gaze cueing paradigm, participants identify a target. Unlike in the former task, in the latter task, the influence of what or where the other...
Article
A long established distinction exists in developmental psychology between young children's ability to judge whether objects are seen by another, known as "level-1" perspective-taking, and judging how the other sees those objects, known as "level-2" perspective-taking (Flavell, Everett, Croft, & Flavell, 1981a; Flavell, Flavell, Green, & Wilcox, 198...
Article
Full-text available
We present an application of Ant Colony Optimisation (ACO) to simulate socio-cognitive features of a population. We incorporated perspective taking ability to generate three different proportions of ant colonies: Control Sample, High Altercentricity Sample, and Low Alter-centricity Sample. We simulated their performances on the Travelling Salesman...
Article
A growing body of work suggests that in some circumstances humans may be capable of ascribing mental states to others in a way that is fast, cognitively efficient, and implicit (implicit mentalising hypothesis). However, the interpretation of this work has recently been challenged on the grounds that the observed effects may reflect 'submentalising...
Article
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The neurohormone Oxytocin (OT) has been one of the most studied peptides in behavioral sciences over the past two decades. Many studies have suggested that OT could increase trusting behaviors. A previous study, based on the "Envelope Task" paradigm, where trust is assessed by the degree of openness of an envelope containing participant's confident...
Article
Full-text available
The neurohormone Oxytocin (OT) has been one of the most studied peptides in behavioral sciences over the past two decades. Many studies have suggested that OT could increase trusting behaviors. A previous study, based on the “Envelope Task” paradigm, where trust is assessed by the degree of openness of an envelope containing participant’s confident...
Technical Report
We made freely available on Figshare the stimuli and procedure used in the following paper: Samson, D., Apperly, I. A., Braithwaite, J. J., Andrews, B. J., & Bodley Scott, S. E. (2010). Seeing it their way: Evidence for rapid and involuntary computation of what other people see. Journal of Experimental Psychology. Human Perception and Performance,...
Article
Previous studies have shown that alcohol-dependent (AD) individuals have difficulties inferring other people's emotion, understanding humor, and detecting a faux pas. This study aimed at further understanding the nature of such "Theory of Mind" (ToM) difficulties. A total of 34 recently detoxified AD and 34 paired controls were compared based on 2...
Article
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Emotions and perspective-taking are ubiquitous in our daily social interactions, but little is known about the relation between the two. This study examined whether and how emotions can influence even the most basic forms of perspective-taking. Experiment 1 showed that guilt made participants more other-centered in a simple visual perspective-takin...
Article
Visual perspective taking is a fundamental feature of the human social brain. Previous research has mainly focused on explicit visual perspective taking and contrasted brain activation for other- versus self-perspective judgments. This produced a conceptual gap to theory of mind studies, where researchers mainly compared activation for taking anoth...
Article
Understanding other people's point of view is crucial for successful social interaction but can be particularly challenging in situations where the other person's point view conflicts with our own view. Such situations require executive control processes that help us resist interference from our own perspective. In this study, we examined how domai...
Article
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Objective: We examined the utility of the Birmingham Cognitive Screen (BCoS) in discriminating cognitive profiles and recovery of function across stroke survivors. BCoS was designed for stroke-specific problems across 5 cognitive domains: (a) controlled and spatial attention, (b) language, (c) memory, (d) number processing, and (e) praxis. Method...
Article
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Humans gain a wide range of knowledge through interacting with the environment. Each aspect of our perceptual experiences offers a unique source of information about the world-colours are seen, sounds heard and textures felt. Understanding how perceptual input provides a basis for knowledge is thus central to understanding one's own and others' epi...
Article
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Previous research has shown that calculating if something is to someone's left or right involves a simulative process recruiting representations of our own body in imagining ourselves in the position of the other person (Kessler and Rutherford, 2010). We compared left and right judgements from another's spatial position (spatial perspective judgeme...
Article
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The temporal poles (TPs) are among the brain regions that are often considered as the brain network sustaining our ability to understand other people's mental states or "Theory of Mind" (ToM). However, so far the functional role of the left and right TPs in ToM is still debated, and it is even not clear yet whether these regions are necessary for T...
Article
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The processing of human and nonhuman concepts (e.g., agreeable vs. edible) during basic comprehension and reasoning tasks has become a major topic of scientific inquiry. To ensure that the experimental effects obtained from such studies reflect the hypothesised semantic distinction, potential confounds such as psycholinguistic and/or lexical proper...
Article
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A hallmark of human social interaction is the ability to consider other people's mental states, such as what they see, believe, or desire. Prior neuroimaging research has predominantly investigated the neural mechanisms involved in computing one's own or another person's perspective and largely ignored the question of perspective selection. That is...
Conference Paper
Background / Purpose: Neuroimaging studies have shown that the temporal poles (TPs) are part of the neural network activated when participants reason about other people’s mental states, irrespective of the nature (verbal or non-verbal) of the reasoning context and whatever the type of mental state inferred. However, there is so far no clear neuro...
Article
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The validity and functional predictive values of the apraxia tests in the Birmingham Cognitive Screen (BCoS) were evaluated. BCoS was developed to identify patients with different forms of praxic deficit using procedures designed to be inclusive for patients with aphasia and/or spatial neglect. Observational studies were conducted from a university...
Article
Recent findings from studies of epileptic patients and schizotypes have suggested that disruptions in multi-sensory integration processes may underlie a predisposition to report out-of-body experiences (OBEs: Blanke et al., 2004; Mohr et al., 2006). It has been argued that these disruptions lead to a breakdown in own-body processing and embodiment....
Article
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We report data on the validation and functional correlates of Apples Test, which attempts to differentiate between different forms of unilateral neglect. Study 1 presents data from 25 participants with chronic brain lesions who completed the Apples Test and another standard measure of neglect (Star Cancellation). The patients' performance relative...
Article
Previous research suggests that perspective-taking and other "theory of mind" processes may be cognitively demanding for adult participants, and may be disrupted by concurrent performance of a secondary task. In the current study, a Level-1 visual perspective task was administered to 32 adults using a dual-task paradigm in which the secondary task...
Article
Full-text available
In a series of three visual perspective-taking experiments, we asked adult participants to judge their own or someone else's visual perspective in situations where both perspectives were either the same or different. We found that participants could not easily ignore what someone else saw when making self-perspective judgments. This was observed ev...
Article
We describe the basic and exceptional calculation abilities of a calculating prodigy whose performances were investigated in single- and multi-digit number multiplication, numerical comparison, raising of powers, and short-term memory tasks. The study shows how the highly efficient long-term memory storage and retrieval processes of this calculatin...
Article
For more than 30 years, researchers have focused on the important transition that children undergo between the ages of 3 and 5, when they start to solve mind-reading problems that require reasoning about complex mental states, such as beliefs. The main question for debate has been whether, during that transition, children acquire new concepts about...
Article
Keysar et al. (Keysar, Barr, Balin, & Brauner, 200020. Keysar , B. , Barr , D. J. , Balin , J. A. and Brauner , J. S. 2000. Taking perspective in conversation: The role of mutual knowledge in comprehension. Psychological Sciences, 11: 32–38. [CrossRef], [PubMed], [Web of Science ®], [CSA]View all references; Keysar, Lin, & Barr, 200321. Keysar...
Article
When trying to make sense of other people's behaviour we usually invoke their mental states, such as their intentions, beliefs or emotions. This mind reading ability has been traditionally investigated in developmental psychology and comparative psychology but is now receiving increasing attention from the cognitive neurosciences. I will show the i...
Article
There is strong evidence that developments in children's theory of mind (ToM) at 3?4 years are related to developments in language and executive function. However, these relationships might exist for 2 reasons. First, language and executive function might be necessary for the mature ToM abilities that children are in the process of developing. Seco...
Article
Much of what we know about other people's beliefs comes non-inferentially from what people tell us. Developmental research suggests that 3-year-olds have difficulty processing such information: they suffer interference from their own knowledge of reality when told about someone's false belief (e.g., [Wellman, H. M., & Bartsch, K. (1988). Young chil...
Article
Perspective taking is a crucial ability that guides our social interactions. In this study, we show how the specific patterns of errors of brain-damaged patients in perspective taking tasks can help us further understand the factors contributing to perspective taking abilities. Previous work [e.g., Samson, D., Apperly, I. A., Chiavarino, C., & Hump...
Article
To test the domain-specificity of "theory of mind" abilities we compared the performance of a case-series of 11 brain-lesioned patients on a recently developed test of false belief reasoning () and on a matched false photograph task, which did not require belief reasoning and which addressed problems with existing false photograph methods. A striki...
Article
The contribution of the left inferior prefrontal cortex in semantic processing has been widely investigated in the last decade. Converging evidence from functional imaging studies shows that this region is involved in the "executive" or "controlled" aspects of semantic processing. In this study, we report a single case study of a patient, PW, with...
Article
Understanding the operating characteristics of theory of mind is essential for understanding how beliefs, desires, and other mental states are inferred, and for understanding the role such inferences could play in other cognitive processes. We present the first investigation of the automaticity of belief reasoning. In an incidental false-belief tas...
Article
The retention of first-order theory of mind (ToM) despite severe loss of grammar has been reported in two patients with left hemisphere brain damage (Varley & Siegal, 200033. Varley , R. and Siegal , M. 2000. Evidence for cognition without grammar from causal reasoning and “theory of mind” in an agrammatic aphasic patient. Current Biology, 10: 72...
Article
Humans' unique aptitude for reasoning about mental states, known as Theory of Mind (ToM), can help explain the unique character of human communication and social interaction. ToM has been studied extensively in children, but there is no clear account of the cognitive basis of ToM in adults. Evidence from functional imaging and neuropsychology is be...
Article
Full-text available
Little is known about the functional and neural architecture of social reasoning, one major obstacle being that we crucially lack the relevant tools to test potentially different social reasoning components. In the case of belief reasoning, previous studies have tried to separate the processes involved in belief reasoning per se from those involved...