Author: Jeffery A. WinerPublisher: Springer
ISBN:
Category : Medical
Languages : en
Pages : 120
Book Description
The Medial Geniculate Body of the Cat
Author: Jeffery A. WinerPublisher: Springer
ISBN:
Category : Medical
Languages : en
Pages : 120
Book Description
The Medial Geniculate Body of the Cat
Author: J. A. WinerPublisher: Springer
ISBN: 9783540132547
Category : Medical
Languages : en
Pages : 100
Book Description
In the operation of reasoning, the mind does nothing but run over its objects, as they are supposed to stand in reality, without adding any thing to them or diminishing any thing from them. If I examine the Ptolomaic and Copernican systems, I endeavour only, by my inquiries, to know the real situation of the planets; that is, in other words, I endeavour to give them, in my conception, the same relation that they bear towards each other in the heavens. To this operation of the mind, therefore, there seems to be always a real, though often unknown standard, in the nature of things; nor is truth or falsehood variable by the various apprehensions of mankind. D. Hume, The sceptic. In: Essays. Moral Political and Literary. Oxford University Press, Oxford, 1963, p. 166. Contents 1 Introduction 1 2 Materials and Methods 2 3 Observations . . . . 4 3. 1 Topography of the Medial Geniculate Body 4 3. 2 Cytoarchitectonic Subdivisions of the Medial Geniculate Body 4 3. 3 Neuronal Architecture of the Ventral Division 7 3. 4 Structure ofAxons in the Ventral Division 21 3. 5 Cortical Connections of the Ventral Division 27 3. 6 Neuronal Architecture of the Dorsal Division 27 3. 7 Structure of Axons in the Dorsal Nuclei 39 3. 8 Neuronal and Axonal Architecture of the Suprageniculate Nucleus and the Posterior Limitans Nucleus . . . . . . 43 3. 9 Cortical Connections of the Dorsal Division . . . . . . 49 3. 10 Neuronal and Axonal Architecture of the Medial Division 56 4 Discussion . . . . . . . . . . . . . . . . . . .
Cortical Projections of the Medial Geniculate Body in the Cat
Author: A. Sousa-PintoPublisher: Springer Science & Business Media
ISBN: 364295247X
Category : Science
Languages : en
Pages : 43
Book Description
Monakow (1882) recognized in the medial geniculate body (MGB) a medial or "magnocellular", and a lateral, "principal" or parvicellular part. The latter was further subdivided by Cajal (1902) in a dorsal and a ventral lobe. Monakow's division was adopted by Rioch (11:)29) and has been widely used. Morest (1964), in a Golgi study in the cat, used Cajal's scheme and further subdivided the ventral division into several subnuclei. Morest considered Cajal's suprageniculate nucleus as apart of the MGB. The cortical projections of the MGB in the cat were studied by Woollard and Harpman (1939) and Ades (1941) with the Marchi method and, more recently, by Wilson and Gragg (1969) using the Nauta method. While all these studies show MGB projections to the first auditory area (AI) as electrophysiologically defined (Woolsey, 1960), there is disagreement as to the existence and extent of MGB projections to other cortical areas (All, AIll, Ep, Ea and SF of Woolsey, 1960) where auditory activity has been electrophysiologically demonstrated. These studies did not disclose topical relationships between the different subdivisions of the principal MGB and the various cortical projection areas.
Cortical Projections and GABAergic Organization of the Cat Medial Geniculate Body
Author: Camillan Ling HuangDistribution of Acoustic Pathways in the Medial Geniculate Bodies of the Cat
Author: Harlow Whiting AdesPublisher:
ISBN:
Category : Cats
Languages : en
Pages : 5
Book Description
A Quantitative Study of Single Unit Activity in the Medial Geniculate Body of the Cat
Author: Lindsay Michael AitkinThe Comparative Anatomy of Neurons: Homologous Neurons in the Medial Geniculate Body of the Opossum and the Cat
Author: D. Kent MorestPublisher: Springer Science & Business Media
ISBN: 3642706525
Category : Medical
Languages : en
Pages : 112
Book Description
6 Acknowledgments 87 7 References 88 Subject Index 95 VIII Abbreviations A cerebral aqueduct anterior deep dorsal nucleus, CGM AD AP anterior pretectal nucleus AR auditory radiation ASD anterior superficial dorsal nucleus, CGM BA brachium, accessory (medial) nucleus, IC BIC brachium of inferior colliculus BSC brachium of superior colliculus cerebellum CB CC caudal cortex, IC CF cuneate fasciculus CG central gray CGL lateral geniculate body medial geniculate body CGM commissure of inferior colliculus CIC CIN central intralaminar nucleus CL lateral part of commissural nucleus, IC CM central medial nucleus CN central nucleus, IC CORD spinal cord CP cerebral peduncle CSC commissure, SC CUN cuneiform area, IC D dorsal nucleus, CGM DA anterior dorsal nucleus, CGM DC dorsal cortex, IC DD deep dorsal nucleus, CGM DI dorsal intercollicular area DM dorsomedial nucleus, IC DMCP decussation of superior cerebellar peduncle DS superficial dorsal nucleus, CGM EYE enucleation FX fornix GN gracile nucleus HIT habenulo-interpeduncular tract inferior colliculus IC III oculomotor nerve IN interpeduncular nucleus L posterior limitans nucleus LC laterocaudal nucleus, IC LI lateral intercollicular area LL lateral lemniscus lateral mesencephalic nucleus LMN LN lateral nucleus, IC LP lateral posterior nucleus LPc caudal part of lateral posterior nucleus LV pars lateralis, ventral nucleus, CGM M medial division, CGM MB mammillary bodies middle cerebellar peduncle MCP MES V mesencephalic nucleus of trigeminal tract MI medial intercollicular area ML medial lemniscus MLF medial longitudinal fasciculus MT mammillothalamic tract MZ marginal zone, CGM OC oculomotor nuclei occipital cortex lesion OCC OT optic tract.
The Anatomical Organization of the Suprasylvian Gyrus of the Cat
Author: C. J. HeathPublisher: Springer Science & Business Media
ISBN: 364248154X
Category : Medical
Languages : en
Pages : 63
Book Description
In recent years, the suprasylvian gyrus of the cat has attracted the attention of many neurophysiologists and experimental psychologists and the variety of their interests is reflected in the number of morphological and functional sub divisions which have been made of it. Some of these subdivisions are shown in Fig. 1. Workcrs concerned with t. hc visual system havc made studies of the third visual area (awa to) on the medial aspect. of thc gyrus, and of the latcral supra sylvian area on the lateral aspeet, both of which contain representations of the retina (Clare and Bishop, 1954; Hubel and Wiesel, 1965, 1969; Wright, 1969). However, the full extent of these areas and particularly of the latter, is still not known. Other workers have investigated the extent of the gyrus activated by somatic sensory (Darian. Smith, Isbister, Mok and Yokota, 1966) or auditory (Woolsey, 1961) stimuli. A third field of incrcasing interest is the study of the "polysensory areas" of the cortex, two of which are situated in the middle supra sylvian gyrus. In these areas, in animals anaesthetized with chloralose, conver gence upon single neurons of auditory, somatic and visual impulses has been demonstrated (see ego Thompson, Johnson and Hoopes, 1963; Dubner and Rut ledge, 1964, 1965; Dubner, 1966; Bignall, 1967) and it has been proposed that these areas play an important part in the central processing of sensory information (Buser and Bignall, 1967; Thompson, 1967).
Distribution of Auditory Action-potentials in the Medial Geniculate Body of the Cat
Author: John Diuguid CoakleyPublisher:
ISBN:
Category : Brain
Languages : en
Pages : 170
Book Description
Author: William Roy Lippe