Erik Johnsen

The paper investigates GABA and Glutamate dynamics along with BOLD signals in psychosis patients with hallucinations during a cognitive task, finding baseline Glx differences and altered BOLD-Glx associations.

This paper demonstrates a method to concurrently measure BOLD and metabolite changes during a cognitive task using fMRS, showing significant Glx increases and moderate BOLD correlation.

This study uses diffusion tensor imaging and machine learning to predict brain age in schizophrenia and bipolar disorder patients, finding age overestimation in both groups compared to controls.

The paper shows that neural activity in the ventro-medial frontal cortex precedes conscious awareness of entering or exiting a transient hallucinatory state.

This study finds a positive correlation between arcuate fasciculus tract length and severity of auditory hallucinations in schizophrenia patients using DTI tractography.