Orientation and Direction Selectivity in V1

Here, I studied extracellular recordings from monkey V1 neurons to characterize their orientation and direction selectivity. I computed firing statistics, peri‑stimulus time histograms, and tuning curves, then compared different model fits (Von Mises, Gaussian, and a hybrid).
The analysis revealed clear direction‑ and orientation‑selective responses, with the hybrid model providing the best fits. I also confirmed significant differences in responses to opposite directions, concluding that proper model selection is key to accurately describing neural tuning.