has soma location has soma location glutamatergic neuron cerebral cortex neuron L6b glutamatergic cortical neuron L6b glut The L6b glutamatergic cortical neuron, also known as the Layer 6b glutamatergic neuron, is a specific subtype of neuron predominantly located in layer 6b of the cerebral cortex. This region is the deepest layer of the grey matter in the brain, containing various types of neurons. The L6b glutamatergic cortical neurons are named for their primary excitatory neurotransmitter, glutamate, which they use to transmit signals across the synapse. A key feature of L6b glutamatergic cortical neurons is their distinctive morphological and molecular characteristics. They express various genes that are not commonly found in other types of cortical neurons, illustrating their unique genetic make-up and they also have a distinct morphology, with dendrites that span across multiple layers of the cortex. These neurons are specific to mammals and play a critical role in modulating the brain's various functions including sensory perception, motor commands, spatial reasoning, conscious thought, and language. Functionally, L6b glutamatergic cortical neurons are heavily involved in information processing and transmission. Using glutamate as its primary neurotransmitter, these neurons can excite or stimulate other neurons, contributing to the overall activity of the cortical circuit. Their most notable role lies within their ability to communicate between cortical and subcortical structures, as the axons of L6b neurons extend out of the cortex and towards various subcortical areas, including the thalamus and cortex. Hence, these neurons can modulate the output of cortical information to these subcortical destinations. (This extended description was generated by ChatGPT and reviewed by the CellGuide team, who added references, and by the CL editors, who approved it for inclusion in CL. It may contain information that applies only to some subtypes and species, and so should not be considered definitional.) A glutamatergic neuron with a soma found in cortical layer 6b. They are transcriptomically related to corticothalamic-projecting neurons but have differential projections to the thalamus or anterior cingulate. https://cellxgene.cziscience.com/cellguide/CL_4023038 ILX:0770163 Homo sapiens cortical layer VIb