Thalamocortical-like circuits transform and integrate sensory information in the early vertebrate forebrain.
Sensory information is first processed by various thalamic nuclei before reaching the pallium in amniotes, where it is used for higher-order computations such as integrating diverse sensory information that can be utilized to form associations. In teleost fish, the dorsal thalamic nuclei, believed to be analogous to the amniote thalamus, projects primarily to the subpallium. However, the major diencephalic input to the pallium originates from the preglomerular nucleus (PG), suggesting that it may perform analogous functions to the amniote thalamocortical pathway. To examine this, we first mapp