primary motor cortex pyramidal cell L6 corticothalamic-projecting glutamatergic cortical neuron corticothalamic VAL/VM projecting glutamatergic neuron of the primary motor cortex A corticothalamic-projecting glutamatergic neuron that is located in L6 and lower L5 of the primary motor cortex, with a pyramidal morphology and mostly untufted apical dendrites terminating in midcortical layers. CT VAL/VM (ventroanterior-ventrolateral complex/ventromedial nucleus) cells have a near tonic firing pattern and are distinguished from L6 IT neurons by a lower inter-spike interval adaptation index. CT VAL/VM MOp CT VAL/VM glut MOp CT VAL/VM M1 The assertion of this cell type under L6 CT is due to the ambiguity of lower L5 and L6. untufted pyramidal neuron