title: Responsiveness and somatotopic organization of anterior parietal field 3b and adjoining cortex in newborn and infant monkeys.
abstract: Microelectrodes were used to record from somatosensory areas 3b and adjoining areas 3a and 1 in newborn monkeys. At birth, area 3b was responsive to cutaneous stimuli and had an adult-like somatotopic organization in marmosets and one squirrel monkey, while areas 1 and 3a had only limited responsiveness. In newborn macaque monkeys, cortex was unresponsive to cutaneous stimuli; however, by 1 month, areas 3b and 1 appeared to be adult-like in responsiveness and somatotopic organization.
authors.affiliation: Department of Psychology, Vanderbilt University, Nashville, Tennessee 37240.
authors.forename: L A
authors.initials: LA
authors.lastname: Krubitzer
authors.forename: J H
authors.initials: JH
authors.lastname: Kaas
mesh_terms: D000344:Afferent Pathways / Q000502:physiology; D000818:Animals; D000831:Animals, Newborn / Q000502:physiology*; D001931:Brain Mapping; D002144:Callithrix; D005552:Forelimb / Q000294:innervation; D008252:Macaca fascicularis; D008465:Mechanoreceptors / Q000502:physiology; D009048:Motor Skills / Q000502:physiology*; D009474:Neurons / Q000502:physiology; D010296:Parietal Lobe / Q000502:physiology*; D012453:Saimiri; D012867:Skin / Q000294:innervation*; D013003:Somatosensory Cortex / Q000502:physiology*; D013045:Species Specificity