Contextual memory reactivation modulates Ca²⁺-activity network state in a mushroom body-like center of the crab N. granulata.

ABSTRACT: High-order brain centers play key roles in sensory integration and cognition. In arthropods, much is known about the insect high-order centers that support associative memory processes, the mushroom bodies. The hypothesis that crustaceans possess structures equivalent to the mushroom bodies -traditionally called hemiellipsoid body- has been receiving neuroanatomical endorsement. The recent functional support is limited to the short term: in a structure of the true crab Neohelice granulata that has many insect-like mushroom bodies traits, the plastic learning changes express the context attribute of an associative memory trace. Here, we used in vivo calcium imaging to test whether neuronal activity in this structure is associated with memory reactivation in the long-term (i.e., 24 h after t

SUBMITTER: Maza FJ 

PROVIDER: S-EPMC9259570 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature