title: Right prefrontal activation produced by arterial baroreceptor stimulation: a PET study.
abstract: This study was performed to test the hypothesis of greater right hemispheric involvement in the processing of baroreceptor stimuli. Carotid sinus baroreceptors were stimulated by rhythmically decreasing air pressure in a neck chamber, and under control conditions the thorax was stimulated in a similar manner. Changes in regional cerebral blood flow (rCBF) were measured by PET. Baroreceptor stimulation resulted in rCBF increase in the right anterior-inferior prefrontal cortex (Brodmann areas (BA) 10/44/47) and bilaterally in BA 6/8. We conclude that in at least some stages of baroreceptor information processing the right hemisphere plays a greater role than the left hemisphere.
authors.affiliation: Eötvös Loránd University, Hungarian Academy of Sciences, Szondi u. 83-85, Budapest H-1068, Hungary.
authors.forename: J
authors.initials: J
authors.lastname: Weisz
authors.forename: M
authors.initials: M
authors.lastname: Emri
authors.forename: J
authors.initials: J
authors.lastname: Fent
authors.forename: Z
authors.initials: Z
authors.lastname: Lengyel
authors.forename: T
authors.initials: T
authors.lastname: Márián
authors.forename: G
authors.initials: G
authors.lastname: Horváth
authors.forename: P
authors.initials: P
authors.lastname: Bogner
authors.forename: L
authors.initials: L
authors.lastname: Trón
authors.forename: G
authors.initials: G
authors.lastname: Adám
mesh_terms: D000293:Adolescent; D000328:Adult; D017704:Baroreflex / Q000502:physiology*; D002320:Cardiovascular Physiological Phenomena; D002346:Carotid Sinus / Q000502:physiology*; D002560:Cerebrovascular Circulation / Q000502:physiology; D007839:Functional Laterality / Q000502:physiology*; D006801:Humans; D008297:Male; D010507:Periodicity; D010812:Physical Stimulation; D017397:Prefrontal Cortex / Q000000981:diagnostic imaging* / Q000502:physiology; D011311:Pressoreceptors / Q000502:physiology*; D011312:Pressure; D012143:Respiratory Physiological Phenomena; D014055:Tomography, Emission-Computed; D017833:Visceral Afferents / Q000502:physiology*