Brain ImagingRight prefrontal activation produced by arterial baroreceptor stimulation: a PET studyWeisz, JúliaCA; Emri, Miklós1; Fent, János; Lengyel, Zsolt1; Márián, Teréz1; Horváth, Géza1; Bogner, Péter2; Trón, Lajos1,3; Ádám, GyörgyAuthor Information Eötvös Loránd University, and Institute of Psychology, and 3PET Study Group, Hungarian Academy of Sciences, Szondi u. 83-85, Budapest H-1068; 1University of Debrecen, PET Centre; 2University of Kaposvár, Diagnostic Centre, Hungary CACorresponding Author Received 17 July 2001; accepted 10 August 2001 NeuroReport: October 29th, 2001 - Volume 12 - Issue 15 - p 3233-3238 Buy 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. © 2001 Lippincott Williams & Wilkins, Inc.