tissue 5-hydroxyindoleacetic acid amount forebrain 5-hydroxyindoleacetic acid amount Trait.ontology 2019-10-30T14:20:53Z caripark The proportion, quantity or volume in the forebrain (part of the brain developed from the most rostral of the three primary vesicles of the embryonic neural tube from which the diencephalon and telencephalon are derived) of indole-3-acetic acid substituted by a hydroxy group at C-5. VT:0010854 brain 5-hydroxyindoleacetic acid amount