Richard Johnston

Investigating the mechanisms underlying saccade generation in the frontal eye fields using multi-site microstimulation

This study investigates how population activity in the frontal eye field (FEF) is integrated to generate saccadic eye movements using multi-site microstimulation in monkeys.

Brain-wide arousal signals are segregated from movement planning in the superior colliculus

This study identifies a low-dimensional arousal signal in the superior colliculus that is distinct from movement planning signals in monkeys performing a memory-guided saccade task.

EEG signals index a global signature of arousal embedded in neuronal population recordings

The paper links EEG signals to a global arousal signature in neuronal population recordings during a change detection task.

The eyes reflect an internal cognitive state hidden in the population activity of cortical neurons

The paper shows that eye movements correlate with a slow neural activity drift across visual and prefrontal cortex, indicating a global brain state related to arousal.