Ranulfo Romo

The paper shows that perceptual biases in working memory arise from neural encoding in both prefrontal cortex and secondary somatosensory cortex, suggesting a distributed cortical mechanism.

This study examines how primate ventral premotor cortex processes time during interval comparison and categorization tasks, revealing distinct neural dynamics for each task.

The paper investigates how neurons in the primate ventral premotor cortex process and integrate tactile and acoustic stimuli during a bimodal detection task, revealing distinct neural dynamics for sensory processing and decision maintenance.

This study identifies neural correlates of perceptual bias in the prefrontal cortex of monkeys using vibrotactile frequency discrimination task data.

The paper shows that the second somatosensory cortex segregates sensory and transformed signals into orthogonal subspaces during a task, with transformed encoding being context-dependent.

This study examines how thalamocortical interactions shape neural variability during stimulus perception in monkeys, revealing distinct dynamics across brain regions.

The paper investigates whether neurons in the primary somatosensory cortex encode tactile and acoustic stimuli during a bimodal detection task, finding they are unimodal and functionally distinct.

This study identifies a categorical decision signal in dorsal premotor cortex (DPC) during a vibrotactile categorization task, showing sustained activity across task phases and consistent responses across stimulus attributes.

The paper analyzes neural activity in non-human primates during time delays to understand working memory and time encoding mechanisms, finding that time can be decoded with high precision and neural trajectories are low dimensional.

This study shows dopamine firing encodes reward prediction errors and motivation during a working memory task in monkeys, with distinct roles for phasic and tonic activity.

The paper identifies that secondary somatosensory cortex (S2) neurons exhibit both invariant sensory responses and perceptual correlates, suggesting S2 is critical for converting touch into perception.

The paper examines directional interactions between somatosensory thalamo-cortical circuits during tactile perception in monkeys, finding increased feedforward activity during stimulus presence and bidirectional interactions with high stimulus amplitude.

The paper examines how internal bias influences dopamine neuron activity during decision-making tasks in monkeys, showing bias affects phasic activity and reward prediction errors but not delay period activity.