cerebral cortex ribonucleic acid amount prefrontal cortex ribonucleic acid amount 2026-01-13T15:00:33Z VT:0011269 prefrontal cortex RNA amount Trait.ontology CMO:0004133 The proportion, quantity, or volume of ribonucleic acid in the anterior part of the frontal lobes of the brain, lying in front of the motor and premotor areas. This brain region has been implicated in planning complex cognitive behaviors, personality expression, decision making and moderating correct social behavior. The basic activity of this brain region is considered to be orchestration of thoughts and actions in accordance with internal goals. Ribonucleic acid is a high molecular weight, linear polymer composed of nucleotides containing ribose and linked by phosphodiester bonds.