Neurons in different layers of sensory cortex generally have different functional properties. But what determines firing rates and tuning properties of neurons in different layers. Orientation selectivity in primary visual cortex (V1) is an interesting case to study these questions. Thalamic projections essentially determine the preferred orientation of neurons that receive direct input. https://www.ealisboa.com/best-offer-Duraflex-Circuit-Widebody-Fender-Flares-Fiberglass-Infiniti-G35-Coupe-Non-Sport-super-save/