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Acta neurologica latinoamericana最新文献

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Disturbances of motor reaching behavior. Clinical note. 运动到达行为障碍。临床注意。
Acta neurologica latinoamericana Pub Date : 1979-01-01
L D'Anna, I Malach
{"title":"Disturbances of motor reaching behavior. Clinical note.","authors":"L D'Anna,&nbsp;I Malach","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Disturbance of motor reaching behavior was found in a patient submitted to a partial lobectomy including the posterior regions of the parietal cortex. The altered function could be objectivated by means of a battery of tests designed to detect visuo-spatial appreciation following which the subject has to point out to the center of figures with different configurations. Likewise, the damaged motor function could also be detected when the patient intended to reproduce, by copying, models of a figure as well as of straight lines of different lengths. Difficulties to reach -on first attempt- the proper point on the sheet with the point of the pencil, brought the performance of these tests to a high degree of inexactness and showed clearly the inaccuracy in production of voluntary motor responses within concretely definable visuo-spatial limits. These findings can be considered to be similar to those described in monkeys after removal of parieto-occipital cortex. It might be that a lesion in this part of the brain disrupt the high level of elaboration of different kind of stimuli (tactile, proprioceptive, visual, etc.) indispensable to attain normal reaching motor functions.</p>","PeriodicalId":75394,"journal":{"name":"Acta neurologica latinoamericana","volume":"25 1-2","pages":"81-7"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11785808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Personal experience in monitoring examination of intracranial pressure]. [颅内压监测检查的个人经验]。
Acta neurologica latinoamericana Pub Date : 1979-01-01
J C Matassa, F Morales, F Barcelone, P Albert
{"title":"[Personal experience in monitoring examination of intracranial pressure].","authors":"J C Matassa,&nbsp;F Morales,&nbsp;F Barcelone,&nbsp;P Albert","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In our Department of Neurosurgery, during the last two years, we have measured the intracranial pressure (IPC) with an extradural transducer, in cases of head trauma, subarachnoid haemorrhages, pseudotumor cerebri, dilated ventricles and microcephalies. We remark the importance of the continuous measuring of the ICP and its value in relation with the use of hyperosmolar solutions in the diagnosis, treatment and outcome of this patients.</p>","PeriodicalId":75394,"journal":{"name":"Acta neurologica latinoamericana","volume":"25 3-4","pages":"207-23"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11341612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Clinicopathological analysis of fatal cerebellar hematomas]. 【致死性小脑血肿临床病理分析】。
Acta neurologica latinoamericana Pub Date : 1979-01-01
F Marengo, E Wilson, J A Purriel
{"title":"[Clinicopathological analysis of fatal cerebellar hematomas].","authors":"F Marengo,&nbsp;E Wilson,&nbsp;J A Purriel","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>An analysis is made of the clinical observations and pathological findings in 16 fatal cerebellar hematomas admitted at the Instituto de Neurología in Montevideo, over a period of 23 years. The absence of definitive lesions of the brainstem in the majority of cases, in spite of the rich symptomatology of brainstem disfunction (horizontal gaze palsies, vegetative syndrome decerebrate movements) is stressed, as well as the rapid evolution of those cases with intraventricular haemorrhage. Missed clinical diagnosis was also frequent in severely ill patients. Discussion is carried out around the importance of early diagnosis in the correct surgical management. Ventriculostomy alone, not followed by immediate craniectomy, may be highly dangerous. Mere evacuation of the cerebellar, and even of the ventricular clots can result insufficient if not followed by ventricular shunting in cases with ventricular inundation.</p>","PeriodicalId":75394,"journal":{"name":"Acta neurologica latinoamericana","volume":"25 3-4","pages":"287-300"},"PeriodicalIF":0.0,"publicationDate":"1979-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11476207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
F response and H reflex analysis of physiological unity of gravity and antigravity muscles in man. 人体重力和反重力肌肉生理统一性的F反应和H反射分析。
Acta neurologica latinoamericana Pub Date : 1977-01-01
H A García, M A Fisher
{"title":"F response and H reflex analysis of physiological unity of gravity and antigravity muscles in man.","authors":"H A García,&nbsp;M A Fisher","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Observational differences between reflex (H reflex) and antidromic (F response) activation of segmental motoneurons by a peripheral electrical stimulus are described. In contrast to H reflexes, the percentage of F responses found after a series of stimuli is directly related to the pick-up field of the recording electrode consistent with this response being due to the variable activation of a small fraction of the available motoneuron pool. Despite the differing physiological mechanisms, both F responses and H reflexes can be used to demonstrate similar relative \"central excitatory states\" for antigravity muscles (i.e. extensors in the lower extremity and flexors in the upper extremity) and their antagonist gravity muscles. H reflexes were elicited not only in their usual location in certain antigravity muscles but also in unusual locations by length/tension changes in agonist and antagonist groups as well as by passive stretch. The data argue for the physiological unity of similarly acting gravity and antigravity muscles as well as supporting a meaningful role of group II afferents in normal segmental motoneuron pool excitability.</p>","PeriodicalId":75394,"journal":{"name":"Acta neurologica latinoamericana","volume":"23 1-4","pages":"231-44"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11437220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Román Arana Iñíguez (1909-1977)]. [罗曼·阿拉纳·伊尼格斯（1909-1977）]。
Acta neurologica latinoamericana Pub Date : 1977-01-01
N Azambuja
{"title":"[Román Arana Iñíguez (1909-1977)].","authors":"N Azambuja","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":75394,"journal":{"name":"Acta neurologica latinoamericana","volume":"23 1-4","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11586140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Ocular diskinesia]. [眼运动障碍)。
Acta neurologica latinoamericana Pub Date : 1977-01-01
M D Bottinelli, J Bogacz
{"title":"[Ocular diskinesia].","authors":"M D Bottinelli,&nbsp;J Bogacz","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The clinical findings and the electro-oculogram were correlated in four cases (3 postinfectious, 1 vascular) with ocular dyskinesias, of a mixed type in two of them. This correlation led to a more precise recognition of the pattern of opsoclonus, flutter and ocular dysmetria. Ocular dyskinesias have certain resemblances with voluntary saccadic movements; the effects of ocular following and optokinetic stimulation are described. The role of brainstem and cerebellar structures in relation with the physiopathology of these dyskinetic ocular movements is discussed.</p>","PeriodicalId":75394,"journal":{"name":"Acta neurologica latinoamericana","volume":"23 1-4","pages":"195-214"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11785495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Human cortical pO2. 人类皮质pO2。
Acta neurologica latinoamericana Pub Date : 1977-01-01
R Velluti
{"title":"Human cortical pO2.","authors":"R Velluti","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A human cortical pO2 rhythm similar to that described in cats was demonstrated. It bears close correlation to behavioral states such as weaking and slow wave sleep. Induced changes in cerebral blood flow, through carotid compression, has been detected as qualitative variations in local oxygen availability, at the oxygen cathode tip.</p>","PeriodicalId":75394,"journal":{"name":"Acta neurologica latinoamericana","volume":"23 1-4","pages":"189-94"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11784728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Epilepsy and neural science. Critical review]. 癫痫和神经科学。评论]。
Acta neurologica latinoamericana Pub Date : 1977-01-01
M Velasco-Suárez
{"title":"[Epilepsy and neural science. Critical review].","authors":"M Velasco-Suárez","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The nature of, and the knowledge about epilepsy, still under discussion is based upon clinical and experimental data, gathered from the last century until the present date and accepted now as scientific knowledge. The epileptic phenomenon interpreted as the outcome of a disturbance of the central regulation, of neuronal excitation and of the cerebral electric and biochemical equilibrium, is still subject of permanent study and review. From a cybernetic point of view, the epileptic fit can appear as the first expression of an abnormal organization process, or as the outcome of an electrical disturbance within a neuronal regulation circuit. This article is an attempt to review such concepts and to analyze their clinical implications.</p>","PeriodicalId":75394,"journal":{"name":"Acta neurologica latinoamericana","volume":"23 1-4","pages":"117-27"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11784725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Brainstem auditory evoked response (BAER): Clinical perspectives and normative data. 脑干听觉诱发反应(BAER):临床观点和规范数据。
Acta neurologica latinoamericana Pub Date : 1977-01-01
F Lolas, T Hoeppner
{"title":"Brainstem auditory evoked response (BAER): Clinical perspectives and normative data.","authors":"F Lolas,&nbsp;T Hoeppner","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Research pertaining to the physiological mechanisms involved in the generation of brainstem auditory evoked responses is reviewed emphasizing the current status of its clinical applications, pointing out present gaps in knowledge and delineating avenues for further inquiry. Some work conducted in our laboratory aimed at statistical description of BAER parameters relevant to clinical practice is presented, along with assessment procedures that are deemed promising for routine work. Relevant implementation procedures are described.</p>","PeriodicalId":75394,"journal":{"name":"Acta neurologica latinoamericana","volume":"23 1-4","pages":"175-87"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11784727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Cerebral potentials related to visual stimulation. Pattern inversion and flash]. 与视觉刺激有关的脑电位。模式反转和闪光]。
Acta neurologica latinoamericana Pub Date : 1977-01-01
F Lolas, H García
{"title":"[Cerebral potentials related to visual stimulation. Pattern inversion and flash].","authors":"F Lolas,&nbsp;H García","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Distinguishing between electroencephalogram (EEG) and event-related potentials (ERP) as indicators of brain electrical activity, methodological considerations pertaining to the recording of ERP to visual stimulation (evoked potentials, EP) are presented. Visual EP may be either steady-state or transient, depending upon stimulation used (repetitive versus transient) and method of analysis (frequency domain versus time domain). While both have diagnostic applications, this paper concentrates on transient visual EP. Based on the contention that intra and interindividual EP variability is the single most important issue in clinical practice, it presents data comparing two widely employed techniques (checkerboard reversal and flash stimulation) with respect to their stability in normal populations and their diagnostic sensitivity in demyelinating disease.</p>","PeriodicalId":75394,"journal":{"name":"Acta neurologica latinoamericana","volume":"23 1-4","pages":"155-74"},"PeriodicalIF":0.0,"publicationDate":"1977-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"11784726","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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