Hyojung Seo

Shared and distinct cortical mechanisms for working memory and decision-making.

This study investigates whether spatial memory mechanisms are shared across tasks requiring working memory and decision-making in primates, finding distinct roles for DLPFC and LIP.

Hierarchical gradients of multiple timescales in the mammalian forebrain

The paper shows that intrinsic and task-related neural timescales increase hierarchically across mammalian cortices, but thalamic timescales differ from this pattern.

Therapeutic doses of ketamine acutely attenuate the aversive effect of losses during decision-making.

This study shows that therapeutic ketamine doses reduce the aversive impact of losses in decision-making in rhesus macaques without affecting gains or other cognitive functions.

Transient neuronal suppression for exploitation of new sensory evidence

The paper shows that animals briefly suppress motor output when new sensory evidence becomes available, and neurons in the frontal eye field show a corresponding activity dip.

Confluence of timing and reward biases in perceptual decision-making dynamics

This study investigates how temporal and reward contexts influence perceptual decision-making by training monkeys and modeling their behavior with generalized drift-diffusion models.

Multiple timescales of neural dynamics and integration of task-relevant signals across cortex

The paper estimates multiple timescales of neural dynamics and their integration of task-relevant signals across cortex, finding increasing timescales from parietal to prefrontal to cingulate cortex and no correlation with signal selectivity.