Abstract
The changes in amplitude of the monosynaptic masseteric reflex (MR), induced by stimulation of the amygdaloid area for the defence reaction (N. basalis, pars magnocellularis) and in other subdivisions of the amygdaloid complex, were studied in cats with spinal section maintained under Flaxedil. Simultaneously, the the effects of stimulation on the tonic activity of the masseteric nerve were observed. A maintained facilitation of the MR was elicited by stimulation of the lateral nucleus, the parvocellular portion of the basal nucleus and the cortical nucleus, while the reflex was inhibited during stimulation of the medial-most portion of the posterior amygdala. Diphasic changes of the MR amplitude (initial facilitation followed by delayed inhibition) were regularly observed when stimulating the magnocellular portion of the basal nucleus. These diphasic changes were closely correlated with the previously described diphasic resporatory and cardiac responses elicited from the same are (Bonvallet and Gary Bobo 1972). The initial facilitation probably corresponds to the "alerting" stage of the defence reaction and the delayed inhibition, associated with cortical, respiratory and cardiac activation, to the "defensive" stage of the r...Continue Reading
References
Oct 1, 1975·Electroencephalography and Clinical Neurophysiology·M Bonvallet, E G Bobo
Jan 1, 1972·Electroencephalography and Clinical Neurophysiology·M Bonvallet, E G Bobo
Jan 1, 1971·The Journal of Physiology·D B AdamsA Zanchetti
Jul 1, 1958·Folia Psychiatrica Et Neurologica Japonica·T SANO
Oct 15, 1960·The Japanese Journal of Physiology·Y KAWAMURA, S TSUKAMOTO
Feb 1, 1960·Electroencephalography and Clinical Neurophysiology·H URSIN, B R KAADA
Jan 1, 1963·The Journal of Physiology·S M HILTON, A W ZBROZYNA
Jun 1, 1964·The Journal of Physiology·V C ABRAHAMS, S M HILTON
Citations
Dec 21, 1979·Brain Research·J C WillerD Albe-Fessard
Oct 1, 1975·Electroencephalography and Clinical Neurophysiology·M Bonvallet, E G Bobo
Jan 1, 1983·Brain Research·R E WatsonA Siegel
Jun 1, 1985·Brain Research·T I LidskyJ S Schneider
Jan 1, 1982·Comparative Biochemistry and Physiology. A, Comparative Physiology·K Sasamoto, M Ohta
Nov 1, 1988·Brain Research Bulletin·Y TakeuchiM Uemura-Sumi
Jul 1, 1988·Brain Research Bulletin·Y TakeuchiR Matsushima
Sep 6, 2001·Neuroscience Research·M InoueY Yamada
Mar 1, 1986·Neuropharmacology·J C WillerG Le Fur
Feb 22, 2011·Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft·Nikolai E LazarovAndreas Wree
Jul 28, 2007·Muscle & Nerve·Frank ThömkeHanns C Hopf
Sep 15, 1980·Brain Research·C H BlockH Edinger
Jan 1, 1988·Journal of Oral Rehabilitation·N P SchumannA Nebrich
Oct 4, 2011·Cognitive, Affective & Behavioral Neuroscience·Sarah E DonohueMarty G Woldorff
Jan 16, 1984·Brain Research·M Ohta
Dec 19, 2007·Epilepsy & Behavior : E&B·Claire M LathersMichael W Bungo