Experimental expansion of relative telencephalon size improves the main executive function abilities in guppy.

ABSTRACT: Executive functions are a set of cognitive control processes required for optimizing goal-directed behavior. Despite more than two centuries of research on executive functions, mostly in humans and nonhuman primates, there is still a knowledge gap in what constitutes the mechanistic basis of evolutionary variation in executive function abilities. Here, we show experimentally that size changes in a forebrain structure (i.e. telencephalon) underlie individual variation in executive function capacities in a fish. For this, we used male guppies (Poecilia reticulata) issued from artificial selection lines with substantial differences in telencephalon size relative to the rest of the brain. We tested fish from the up- and down-selected lines not only in three tasks for the main core execu

SUBMITTER: Triki Z 

PROVIDER: S-EPMC10281379 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature