F3/Contactin acts as a modulator of neurogenesis during cerebral cortex development

► F3/Contactin is expressed in proliferating ventricular zone precursors. ► F3/Contactin promotes proliferation of ventricular zone precursors. ► F3/Contactin counteracts commitment/differentiation of cortical neurons. ► F3/Contactin overexpression results in delayed corticogenesis. ► F3/Contactin overexpression drives Notch pathway activation in developing cortex.