Neurons are frequently classified into distinct types on the basis of structural, physiological,
or genetic attributes. To better constrain the definition of neuronal cell types, we …

Human cortex transcriptomic studies have revealed a hierarchical organization of γ-
aminobutyric acid–producing (GABAergic) neurons from subclasses to a high diversity of …

Understanding the diversity of cell types in the brain has been an enduring challenge and
requires detailed characterization of individual neurons in multiple dimensions. To …

Understanding the organizational logic of neural circuits requires deciphering the biological
basis of neuronal diversity and identity, but there is no consensus on how neuron types …

The phenotypic diversity of cortical GABAergic neurons is probably necessary for their
functional versatility in shaping the spatiotemporal dynamics of neural circuit operations …

Different subtypes of GABAergic neurons in sensory cortex exhibit diverse morphology,
histochemical markers, and patterns of connectivity. These subtypes likely play distinct roles …

Nervous systems are composed of various cell types, but the extent of cell type diversity is
poorly understood. We constructed a cellular taxonomy of one cortical region, primary visual …

Understanding any brain circuit will require a categorization of its constituent neurons. In
hippocampal area CA1, at least 23 classes of GABAergic neuron have been proposed to …

Highlights•Solving nervous system evolution requires cross-species comparison of neuronal
types.•Neuronal types are commonly defined by their specific structure and function.•We …

Neurons have diverse molecular, morphological, connectional and functional properties. We
believe that the only realistic way to manage this complexity—and thereby pave the way for …