Amirsaman Sajad

Conflict neurons in cingulate cortex of macaques

The paper re-examines the presence of a conflict signal in macaque cingulate cortex using higher-resolution data and finds conflict-modulating neurons, more common in dorsal cingulate than ventral, but more prevalent in supplementary motor cortex.

Laminar architecture of visual responses in supplementary eye field of macaques

The paper examines the laminar organization of visually responsive neurons in the supplementary eye field of macaques during a saccade stop-signal task, revealing layer-specific response patterns and latency differences.

Cortical Origin of Theta Error Signals

The paper uses biophysical modeling to identify the cellular mechanisms generating error-related negativity (ERN) and post-error positivity (Pe) in macaque supplementary eye field.

Functional Architecture of Executive Control and Associated Event-Related Potentials

The paper investigates the laminar organization of neurons in the supplementary eye field during a stop-signal task and links their activity to event-related potentials (ERP) components.

Spatiotemporal coding in the macaque supplementary eye fields: landmark influence in the target-to-gaze transformation

The paper investigates how landmark-centered and eye-centered visual signals are integrated in the supplementary eye fields (SEF) during saccadic eye movements in macaques.

A Minimal Biophysical Model of Neocortical Pyramidal Cells: Implications for Frontal Cortex Microcircuitry and Field Potential Generation

The paper presents a minimal biophysical model of layer-5 pyramidal cells that replicates key features of Ca2+ spike dynamics and synaptic integration, enabling studies of microcircuitry and field potential generation.

Integration of eye-centered and landmark-centered codes in frontal eye field gaze responses

This study shows that frontal eye field neurons integrate eye-centered and landmark-centered visual codes during saccade tasks, with a transient shift toward allocentric coordinates before motor execution.

Timing Determines Tuning: a Rapid Spatiotemporal Transformation in Superior Colliculus Neurons During Reactive Gaze Shifts.

The paper shows that the superior colliculus rapidly transforms target to gaze coding during reactive saccades, with timing determining spatial coding across cell types.

Microcircuitry of Performance Monitoring

The paper investigates cortical microcircuitry in monkeys performing a saccade countermanding task, revealing laminar-specific synaptic currents linked to error and reward feedback.