Frequency sensitivities of auditory neurons in the cerebellum of the cat

Huang, Chi-Ming; Burkard, Robert

doi:10.1016/0006-8993(86)90815-2

Cited by 29 publications

(32 citation statements)

References 18 publications

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“…1) Animal studies: Most authors agreed that the cerebellar hearing area is located in lobes VI and VII of Larsell [3][4][5][6][7][10][11][12][13] . Some authors added some areas to these ones, such as lobes V and VIII of Larsell, paramedian lobe, the cerebellar hemisphere and the parafloccular lobe 6,8,9,12 .…”

Section: Resultsmentioning

confidence: 99%

“…The cerebellum peripheric afferent hearing pa-thways were studied by means of evoked potential tests, in which the researchers observed a threshold reduction in cerebellum response areas with the destruction of the inner ears of cats; thus showing the pathway that goes from the cochlea to the cerebellum 3 . Other authors suggested that the peripheral afferent pathway would go from the cochlear nucleus to the cerebellum, also using evoked potential tests 7 . Central cerebellar afferent auditory pathways were suggested as going through the pontine nucleus, inferior colliculus and auditory cortex, by means of electrophysiologic exams 7 .…”

Section: Resultsmentioning

confidence: 99%

“…Other authors suggested that the peripheral afferent pathway would go from the cochlear nucleus to the cerebellum, also using evoked potential tests 7 . Central cerebellar afferent auditory pathways were suggested as going through the pontine nucleus, inferior colliculus and auditory cortex, by means of electrophysiologic exams 7 . Snider and Stowel observed that the inferior colliculus destruction would lead to an abolishment in the response areas of the cerebellar hearing area.…”

Section: Resultsmentioning

confidence: 99%

“…Some authors have observed that the responses happened with the participation of both ears, and also that there was greater effectiveness of the binaural stimulus when compared to the monoaural one 3,4 . Notwithstanding, some authors have reported that longer latency neurons (longer than 11 ms) responded to the binaural stimulus, while shorter latency neurons (shorter than 6ms) responded to the monoaural stimulus 7 . Such mechanism may aid in sound location, since binaural stimulation is more effective and aids in attaining sound time and intensity differences.…”

Section: Discussionmentioning

confidence: 97%

“…Studies regarding the organization of the auditory area in the cerebellum of animals started out during the 40's, when they observed evidences that in cats the cerebellum receives inputs from auditory, tactile and visual senses, transmitting information to the cortical pathways 3 . After that, many studies followed, most of them using electrophysiological exams; though, in different animal species, trying to establish the cerebellar auditory area and its central and peripheral connections [4][5][6][7][8][9][10][11][12][13] . Once they identified in animals these hearing-related cerebellar areas and pathways, studies were initiated in humans, aiming at determining the functions of these anatomical details.…”

Section: Introductionmentioning

confidence: 99%

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Participação do cerebelo no processamento auditivo

Sens¹,

Almeida

2007

Rev. Bras. Otorrinolaringol.

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The cerebellum, traditionally conceived as a controlling organ of motricity, it is today considered an all-important integration center for both sensitivity and coordination of the various phases of the cognitive process. Aim: This paper aims at gather and sort literature information on the cerebellum's role in the auditory perception. Methods: We have selected animal studies of both the physiology and the anatomy of the cerebellum auditory pathway, as well as papers on humans discussing several functions of the cerebellum in auditory perception. As for the literature, it has been discussed and concluded that there is evidence that the cerebellum participates in many cognitive functions related to hearing: speech generation, auditory processing, auditory memory, abstract reasoning, timing, solution of problems, sensorial discrimination, sensorial information, language processing, and linguistic operations. Conclusion: It has been reported that all information about cerebellum structure, functions and auditory pathways is incomplete.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Participação do cerebelo no processamento auditivo

Sens¹,

Almeida

2007

Rev. Bras. Otorrinolaringol.

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Neuroanatomy of fragile X syndrome: The posterior fossa

Reiss

Aylward

Freund

et al. 1991

Annals of Neurology

172

106

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The occurrence and specificity of posterior fossa abnormalities as measured from magnetic resonance images of the brain were investigated in a group of 14 males with fragile X syndrome and comparison groups consisting of 17 males with other causes of developmental disability and 18 males with normal IQs. The size of the posterior cerebellar vermis was significantly decreased and the fourth ventricle significantly increased in the group of males with fragile X syndrome compared with males in both comparison groups. These neuroanatomical abnormalities appeared to be secondary to hypoplasia rather than atrophy.

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The effects of X monosomy on brain development: Monozygotic twins discorcant for Turner's syndrome

Reiss

Freund

Plotnick

et al. 1993

Annals of Neurology

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Monosomy for the X chromosome is the most frequent cause of Turner's syndrome, a common clinical syndrome associated with particular physical and neurobehavioral features. The results from comprehensive assessment of prepubertal monozygotic female twins discordant for X monosomy are presented. Zygosity was established with DNA Fingerprinting and no evidence of chromosomal mosaicism was seen in either child. Physical features in the affected twin were relatively mild with respect to the full spectrum of physical malformations and disabilities associated with Turner's syndrome. The neurobehavioral phenotypes of the twins were compared. Although both sisters scored in the superior range of intelligence, the affected twin's Performance IQ was 18 points less than her sister, whereas Verbal IQ showed only a 3-point difference between the sisters. Other relative differences were noted within the executive, visuospatial, and visuomotor domains of function. Behavioral evaluation indicated greater problems with attention, hyperactivity, and anxiety in the affected twin. Quantitative analysis of brain anatomy revealed evidence of both general and regional effects of X monosomy on neurodevelopment. Cerebrospinal fluid volume was increased by 25% in the affected twin compared with her sister with a corresponding decrease in gray matter volume. The right frontal, right parietal-occipital, and left parietal-perisylvian regions showed the greatest discrepancy between the sisters with respect to increased cerebrospinal fluid and decreased gray matter volumes in twin with X monosomy. Differences in the posterior fossa were also noted with a 50% relative increase in the volumes of the fourth ventricle and cisterna magna and a 10 to 15% relative reduction in size of the cerebellar vermis, pons, and medulla in the affected twin. The association between the neurobehavioral and neuroanatomical findings in the affected twin is discussed. The unique nature of the naturally occurring genetic phenomenon seen in this twin pair provides an opportunity to more fully elucidate the neurobehavioral phenotype associated with X monosomy and Turner's syndrome.

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Frequency sensitivities of auditory neurons in the cerebellum of the cat

Cited by 29 publications

References 18 publications

Participação do cerebelo no processamento auditivo

Participação do cerebelo no processamento auditivo

Neuroanatomy of fragile X syndrome: The posterior fossa

The effects of X monosomy on brain development: Monozygotic twins discorcant for Turner's syndrome

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