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STUDIES ON THE FUNCTIONS AND FIBER CON‐NECTIONS OF THE AMYGDALOID NUCLEI AND PERIAMYGDALOID CORTEX. EXPERIMENT ON THE RESPIRATORY MOVEMENTS (2)
Author(s) -
Koikegami Haruyoshi,
Fuse Shigeaki
Publication year - 1952
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1111/j.1440-1819.1952.tb01686.x
Subject(s) - stimulation , amygdala , respiration , respiratory system , nucleus , diaphragm (acoustics) , neuroscience , anatomy , basal (medicine) , cortex (anatomy) , respiratory rate , medicine , chemistry , psychology , physics , heart rate , acoustics , insulin , loudspeaker , blood pressure
Summary Through stimulation of the lateral amygdaloid nucleus (M of Völsch ) we could produce remarkable changes upon respiratory movements, namely, diminution of amplitude and increase in the rate of respiration. The stimulation of the intermediate or medial nucleus of amygdala proper (T or T of Völsch , basal amygdaloid nucleus of Fox ) may not bring about changes upon the respiratory movements; if effective, it is typified in the increase in the rate and amplitude of respiration, as it was previously recognized through stimulation of the periamygdaloid cortex. The motion of the diaphragm stands still at the moment of stimulation, regardless as to whether it stands in expiratory or in inspiratory position. The histological observation of the lungs revealed that changes such as hemorrhage, congestion, emphysematous and edematous change, were ext: aordinarily severe in the stimulated side, except in a few instances where much severe damage was shown in the contralateral side.