Igor Kagan

This study uses multivariate transfer entropy to analyze real-time social information transfer during perceptual decision-making in dyadic interactions.

The paper develops a continuous social decision-making game to study cooperation and competition, finding three stable strategies and a computational model that predicts dyadic decisions with high accuracy.

The paper investigates perceptual switches in a no-report binocular rivalry paradigm and finds that saccades, not fixation shifts, are the primary driver of perceptual changes.

This study investigates optic ataxia in patients with thalamic lesions, finding that multiple thalamic nuclei, particularly in the central thalamus, contribute to visually guided reaching deficits.

The paper investigates how the brain encodes value for different sensory modalities using fMRI, finding modality-specific and general value representations in specific brain regions.

The paper shows that in dyadic settings, humans show higher perceptual confidence without improved accuracy, with less competent individuals benefiting from social convergence.

The paper investigates whether visual perceptual learning is effector-specific by studying decision-making processes in an orientation discrimination task using different effectors.

The paper investigates the visuomotor properties of macaque dorsal pulvinar during memory saccades, finding limited role in prospective planning but involvement in integrating spatial goals across saccades.

This study compares coordination strategies in human and macaque pairs during a transparent decision game, finding that humans use dynamic turn-taking while macaques use static coordination, with one trained macaque pair showing dynamic behavior.

This study inactivates the dorsal pulvinar in macaques and finds a spatial selection bias without perceptual deficit in a color discrimination task.

This study uses microstimulation and fMRI to compare effective connectivity of pulvinar and LIP, finding task-specific and polysynaptic effects on cortical activity.

This paper develops a hierarchical active inference model for visual scene construction, showing it generates empirical evidence accumulation phenomena and novel behaviors in uncertain environments.

The paper shows that people judge their own and others' effort based on task rewards, with reward influence being stronger for others' judgments.

This study investigates how dorsal pulvinar neurons encode eye position during fixation and goal-directed saccades, revealing gaze-dependent modulation and reference frame transformations.

The paper shows that implicit reward associations enhance neural processing of neutral faces, as evidenced by ERP components and pupil dilations, with gain associations having more impact than loss.

This study uses post-decision wagering to measure bi-directional certainty readouts, showing that subjects can assess both certainty of being correct and incorrect, with implications for decision-making under uncertainty.