Joost Haarsma

The paper investigates how postdictive percepts are encoded in the deep layers of primary visual cortex using fMRI and postdictive illusions.

The paper analyzes MEG data to compare neural dynamics of false and veridical perception, finding shared and distinct patterns in sensory and confidence signals.

The paper investigates how expectations about stimulus presence and content interact to influence perceptual judgments, finding that content expectations have a larger effect when a stimulus is expected to appear.

The paper uses fMRI to show that V1 layers differently represent expected and unexpected visual stimuli, supporting predictive processing theories.

The paper shows pre-stimulus alpha oscillations encode stimulus-specific visual predictions and improve shape discrimination.

The paper investigates how perceptual expectations and false percepts generate distinct activity patterns in layers of the early visual cortex using fMRI.

The paper investigates how prior beliefs influence perception in early psychosis, finding differences in reliance on cognitive and perceptual priors between prodromal, psychotic, and control groups.

The paper assesses reinforcement learning deficits in psychosis risk groups and finds they are not linked to schizophrenia polygenic risk in the general population.

The paper investigates how precision-weighting of prediction error signals in the superior frontal cortex affects learning, is influenced by dopamine, and is impaired in psychosis.

This study investigates how dopamine modulates the precision of cortical unsigned prediction errors and its impact on learning.