SOMATOSENSORY CEREBRAL EVOKED POTENTIALS AFTER VASCULAR LESIONS OF THE BRAIN-STEM AND DIENCEPHALON

Brain ◽  
1975 ◽  
Vol 98 (1) ◽  
pp. 113-128 ◽  
Author(s):  
P. NOËL ◽  
JOHN E. DESMEDT
Keyword(s):  
Evoked Potentials ◽  
Brain Stem ◽  
Vascular Lesions ◽  
Cerebral Evoked Potentials ◽  
The Brain

Effect of adrenocortical hormones on evoked potentials in the brain stem

Neurology ◽  
1961 ◽  
Vol 11 (2) ◽  
pp. 109-109 ◽  
Author(s):  
S. Feldman ◽  
J. C. Todt ◽  
R. W. Porter
Keyword(s):  
Evoked Potentials ◽  
Brain Stem ◽  
Adrenocortical Hormones ◽  
The Brain

Noninvasive localization of brain-stem lesions in the cat with multimodality evoked potentials

1981 ◽  
Vol 54 (6) ◽  
pp. 740-750 ◽  
Author(s):  
Richard P. Greenberg ◽  
Donald M. Stablein ◽  
Donald P. Becker
Keyword(s):  
Evoked Potentials ◽  
Brain Stem ◽  
Evoked Potential ◽  
Animal Experiments ◽  
Content Type ◽  
Central Nervous System Dysfunction ◽  
Multimodality Evoked Potentials ◽  
Stem Lesions ◽  
The Brain ◽  
Fine Print

✓ Multimodality evoked potential (MEP) data from over 300 comatose head-injured patients suggest that central nervous system dysfunction of the brain stem and/or hemispheres can be localized with this noninvasive neuroelectric technique. Based on this work, decerebrate motor posturing and prolonged coma are not associated with brain-stem dysfunction but rather with dysfunction of the hemispheres, while absent pupillary and oculocephalic responses are correlated with brain-stem dysfunction alone. However, the accuracy with which MEP data localized human brain-stem or hemispheric dysfunction could not be confirmed by pathological correlation because of low mortality and the small number of autopsies obtained in the patients who died. Therefore, this study was undertaken in an animal model of brain-stem lesion. Complete brain-stem transections were made at the cervicomedullary junction, the medulla just caudal to the eighth nerve, and at the intercollicular region. All cortical visual evoked potential (VEP) peaks were reduced in amplitude and delayed by each of the brain-stem transections, but none of the peaks was abolished. In spite of brain-stem transection, VEP's can be used to gain information about hemispheric function. Somatosensory (SEP) and auditory cortically generated evoked potentials (AEP) were abolished by these brain-stem transections, but early-latency brain-stem SEP and AEP data could accurately localize specific areas of brain-stem dysfunction caused by the lesions. Observations made on human MEP data seem to be confirmed by these animal experiments. Correlations between human and cat MEP data are discussed.

Auditory Evoked Potentials in Gliomas of the Brain Stem

1983 ◽  
Vol 40 (12) ◽  
pp. 769-771 ◽  
Author(s):  
A. Martinez-Arizala ◽  
C. D. Brown ◽  
G. E. McCarty
Keyword(s):  
Evoked Potentials ◽  
Brain Stem ◽  
Auditory Evoked Potentials ◽  
The Brain

scholarly journals 4. An Experimental Study on Photic Evoked Potentials in the Visual Cortex and the Brain Stem of Cats in Relation to Acute Intracranial Hypertension

1971 ◽  
Vol 11 ◽  
pp. 104-105
Author(s):  
Tadahisa KURIMOTO ◽  
Kentaro KOSHINO ◽  
Kuniyuki SOMEDA ◽  
Satoru KUBOTA ◽  
Takayuki NAKAJIMA ◽  
...  
Keyword(s):  
Experimental Study ◽  
Visual Cortex ◽  
Evoked Potentials ◽  
Intracranial Hypertension ◽  
Brain Stem ◽  
The Brain

scholarly journals 74. On the Vascular Lesions of the Brain Stem in Head Injuries

1966 ◽  
Vol 8 ◽  
pp. 155-156
Author(s):  
Yasuhiko MIZOI ◽  
Nobuo TAWA ◽  
Norisuke SHIMOMURA ◽  
Yoshitsugu TATSUNO
Keyword(s):  
Brain Stem ◽  
Head Injuries ◽  
Vascular Lesions ◽  
The Brain
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