Claudio Lavin

Pontifical Catholic University of Chile | UC

(1) Background: Persistent postural-perceptual dizziness (PPPD) is a common chronic dizziness disorder with an unclear pathophysiology. It is hypothesized that PPPD may involve disrupted spatial cognition processes as a core feature. (2) Methods: A cohort of 19 PPPD patients underwent psycho-cognitive testing, including assessments for anxiety, dep...

Introducción: El mareo perceptual postural persistente (MPPP) es, probablemente, la causa más prevalente de mareo crónico. Sin embargo, su fisiopatología es aún motivo de duda y debate. En el presente artículo, proponemos que el MPPP se caracteriza por disfunciones cognitivas de orden superior, al punto de diferenciarse en estas dimensiones de cont...

Introduction Decision-making is a process that can be strongly affected by social factors. Evidence has shown how people deviate from traditional rational-choice predictions under different levels of social interactions. The emergence of prosocial decision-making, defined as any action that is addressed to benefit another individual even at the exp...

Decision making is a process that can be strongly affected by social factors. Profuse evidence has shown how people deviate from traditional rational-choice predictions under different levels of social interactions. The emergence of prosocial decision making, defined as any action that is addressed to benefit another individual even at the expense...

Attention Deficit Hyperactivity Disorder (ADHD) is a common neuropsychiatric disorder in which children present prefrontal cortex (PFC) related functions deficit. Proactive cognitive control is a process that anticipates the requirement of cognitive control and crucially depends on the maturity of the PFC. Since this process is important to ADHD sy...

Recent theories of decision making propose a shared value-related brain mechanism for encoding monetary and social rewards. We tested this model in children with Attention-Deficit/Hyperactivity Disorder (ADHD), children with Autism Spectrum Disorder (ASD) and control children. We monitored participants’ brain dynamics using high density-electroence...

In recent decades, cooperative behaviour has been the target of much research. Although there is some evidence about the motives that lead people to engage in cooperation, there is still little research on cooperation models in real-life settings. To shed some light on this issue, we studied cooperation in an alternative food network. This organiza...

Learning under uncertainty is a common task that people face in their daily life. This process relies on the cognitive ability to adjust behavior to environmental demands. Although the biological underpinnings of those cognitive processes have been extensively studied, there has been little work in formal models seeking to capture the fundamental d...

The possibility of conducting public online transactions means an important help to users and a reduction of governmental resources. However, the usage of the digital channel can get obstructed by different variables where the usability of the service plays an important role. This research presents a usability evaluation of 60 online services offer...

Los procesos de razonamiento y toma de decisiones en contextos de riesgo e incertidumbre se han constituido en un tema de interés central para diferentes disciplinas del conocimiento. Esto se ve reflejado en estudios contemporáneos con foco en procesos de toma de decisiones en contextos de inversiones econó-micas a gran escala (Hmieleski & Baron, 20...

Pupil dilation under constant illumination is a physiological marker where modulation is related to several cognitive functions involved in daily decision making. There is evidence for a role of pupil dilation change during decision-making tasks associated with uncertainty, reward-prediction errors and surprise. However, while some work suggests th...

The growing offer of online public services aims to provide huge benefits to users in terms of time and facilities, and also to governments in terms of cost saving. However, the benefits that both users and providers could extract from the digitalization of transactions are commonly affected by the problems that citizens face while using the facili...

The growing offer of online public services aims to provide huge benefits to users in terms of time and facilities, and also to governments in terms of money saving. However, the benefits that both users and providers could extract from the digitalization of transactions are commonly affected by the problems that citizens face while using the facil...

The activity of the anterior cingulate cortex (ACC) has been related to decision-making (Gehring and Willoughby, 2002; Sanfey et al., 2003; Mulert et al., 2008), socially-driven interactions (Sanfey et al., 2003; Rigoni et al., 2010; Etkin et al., 2011), and empathy-related responses (van Veen and Carter, 2002; Gu et al., 2010; Lamm et al., 2011)....

Studies using Event-Related Potentials have shown the existence of a component called Feedback Error-Related Negativity (fERN). This component has been characterized as a negative deflection which responds differentially to profits and losses in terms of expected and unexpected outcomes. Thus, while some studies have defined the idea of “expected o...

Investigaciones con Potenciales Relacionados a Eventos han demostrado la existencia de un componente llamado Negatividad Relacionada a Retroalimentación de Error, el cual ha sido referido como una deflexión negativa que distingue entre ganancias y pérdidas, en tanto resultados esperados y no esperados respectivamente. Así, mientras algunos estudios...