Kartik Sivakumar

Timing, movement, and reward contributions to prefrontal and striatal ramping activity

This study investigates how time estimation, movement, and reward anticipation contribute to prefrontal and striatal ramping activity in mice during interval timing tasks.

Ventral tegmental area dopamine controls timing variability

This study shows that VTA dopamine neurons control timing variability in Parkinson's disease by modulating neural activity during interval timing tasks.

Complementary cognitive roles for D2-MSNs and D1-MSNs during interval timing

This study shows D2-MSNs and D1-MSNs have opposing dynamics but complementary roles in interval timing, revealing how striatal pathways contribute to cognitive timing.

Long-term, cell type-specific effects of prenatal stress on dorsal striatum and relevant behaviors in mice

This study examines how prenatal stress affects dorsal striatum cell types and behaviors in mice, identifying gene expression changes linked to neurodevelopmental disorders.

Amphetamine increases timing variability by degrading prefrontal ramping activity

This study shows amphetamine increases timing variability by reducing prefrontal cortex ramping activity and neural interactions in mice.