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  • 1
    Online Resource
    Online Resource
    New York, NY :Springer,
    Keywords: Cerebral cortex. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (546 pages)
    Edition: 1st ed.
    ISBN: 9781461566229
    Series Statement: Cerebral Cortex Series ; v.9
    DDC: 612.825
    Language: English
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  • 2
    Keywords: Cerebral cortex. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (508 pages)
    Edition: 1st ed.
    ISBN: 9781461538240
    Series Statement: Cerebral Cortex Series ; v.8B
    DDC: 612.825
    Language: English
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  • 3
    Keywords: Cerebral cortex-Anatomy. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (800 pages)
    Edition: 1st ed.
    ISBN: 9781461548850
    Series Statement: Cerebral Cortex Series ; v.14
    DDC: 611.81
    Language: English
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  • 4
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Visual cortex. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (733 pages)
    Edition: 1st ed.
    ISBN: 9780080525327
    Language: English
    Note: Front Cover -- The Cat Primary Visual Cortex -- Copyright Page -- Contents -- PREFACE -- Chapter 1. The Concept of Cat Primary Visual Cortex -- Prologue -- Milestones in the Development of the Concept of Cat Primary Visual Cortex -- Connections -- Composition of Area 17 -- Comparison of the Architectonics of Areas 17 and 18 and Identification of Borders -- Visual Maps in Areas 17 and 18 -- Circuitry and Signal Processing in Areas 17 and 18 -- Visually Guided Behavior -- Synthesis -- Recent Challenges to the Primacy of Areas 17 and 18 -- Epilogue -- Chapter 2. Optical Imaging of Functional Architecture in Cat Primary Visual Cortex -- Introduction -- Methodological Aspects of Optical Imaging -- Optical Imaging of Functional Maps in Cat Visual Cortex -- Relationships Between Columnar Systems -- Comparison with the Functional Architecture in Other Species -- Concluding Remarks -- Chapter 3. 2-Deoxyglucose Architecture of Cat Primary Visual Cortex -- Introduction -- Orientation Domains -- Ocular Dominance Domains -- Spatial Frequency Domains -- Development and Experience-Dependent Changes of Cortical Maps -- Advantages and Disadvantages of the 2-DG Technique -- Outlook -- Chapter 4. Functional Mapping in The Cat Primary Visual Cortex Using High Magnetic Fields -- Introduction -- Limitations of Current Techniques, or Why We Need Another Mapping Technique -- Functional Magnetic Resonance Imaging -- Functional MRI of the Cat Primary Visual Cortex -- Conclusions -- Chapter 5. Relationship of LGN Afferents and Cortical Efferents to Cytochrome Oxidase Blobs -- Parallel Processing in the Mammalian Visual System -- Organization of CO Staining in Cat Primary Visual Cortex -- Geniculate Inputs to the CO Blobs -- Molecular Markers for Other Blob/Interblob Inputs -- Outputs of the CO Blobs -- Projections to Area 19 -- Comparisons with Primates -- Conclusions. , Chapter 6. Influmence of Topography and Ocular Dominace on The Functional Organization of Callosal Connections in Cat Striate Cortex -- Introduction -- The Vertical Meridian Rule -- Callosal Fibers Interlink Cortical Sites That are in Retinotopic, Rather Than Anatomical, Correspondence -- Interhemispheric Correlated Activity Guides Callosal Development -- Summary and Concluding Remarks -- Chapter 7. Essential and Sustaining LGN Inputs to Cat Primary Visual Cortex -- Introduction -- The Reversible Inactivation Technique -- Two Circuits in Area 17 -- Area 18: More Integrative Than Area 17 -- Functional Architecture of Visual Cortex -- Chapter 8. Integration of Thalamic Input to Cat Primary Visual Cortex -- Introduction -- Simple Receptive Fields -- Numerical Aspects of the Geniculocortical Projection -- Feedforward (Thalamic) Connections and Simple Cell Responses -- Intrinsic Connections and Simple-Cell Responses -- Conclusions -- Chapter 9. The Emergence of Direction Selectivity in Cat Primary Visual Cortex -- Overview -- Directional Tuning: The Basics -- Computational Requirements for Direction Selectivity -- Biological Instantiation of Computational Principles -- Origins of Cortical Timings: The Lagged/Nonlagged Cell Model -- Comparison with Recent Models -- Intracortical Inhibition: Experimental Evidence -- How are Inputs Combined? -- Intralaminar and Interlaminar Interactions -- Summary and Conclusions -- Future Directions -- Chapter 10. Long-Intrinsic Connections in Cat Primary Visual Cortex -- Introduction -- Historical Overview -- Layout of Long-Range Horizontal Connections -- Types of Neurons Forming Long-Range Horizontal Connections -- Synaptic Targets of Long-Range Intrinsic Connections -- Divergence and Convergence of Long-Range Horizontal Connections at the Ultrastructural Level. , Topographic Relations between Long-Range Intrinsic Connections and Functional Cortical Maps -- Possible Functions -- Plasticity of Long-Range Connections in the Adult -- Conclusions -- Chapter 11. Pharmacological Studies on Receptive Field Architecture -- Receptive Field Architecture in Cat Striate Cortex Cells -- Specific Local Synaptic Input Systems to Striate Cortex Cells -- Striate Cortical Network Effects on RF Properties -- Chapter 12. Orientation Selevtivity and Its Modulation by Local and Long-Range Connection in Visual Cortex -- Overview and Introduction -- Contributions of Local Cortical Excitation to the Generation of Orientation Selectivity: The Emergent Model -- Effect of Long-Range Connections on Orientation-Speci.c Responses -- Supraoptimal Responses and Dynamic Properties of Recurrent Inhibition -- Short-Term Plasticity of Orientation Tuning Induced by Pattern Adaptation -- Concluding Remarks -- Chapter 13. Response Synchronization, Gamma Oscillations, and Perceptual Binding in Cat Primary Visual Cortex -- Introduction -- Two Complimentary Strategies for the Representation of Relations: Smart Neurons and Assemblies -- A Need for Dynamic Response Selection and Binding -- Dynamic Grouping Mechanisms -- Predictions -- Response Synchronization in Striate Cortex -- Response Synchronization, Mechanisms and Properties -- Relation between Response Synchronization and Perceptual Phenomena -- Dependency on Central States and Attention -- Plasticity of Synchronizing Connections -- The Impact of Synchronized Responses -- Gamma Oscillations and Visual Perceptions in Human Subjects -- Stimulus Locked Synchronization and Perceptual Grouping -- Conclusions -- Chapter 14. The Special Relationship Between β Retinal Ganglion Cells and Cat Primary Visual Cortex -- Introduction -- Identification of Subsystems and Connections. , Visual System Connections and Function in the Newborn -- Visual Cortex Lesions -- Factors Linked to Survival and Death of Ganglion Cells -- Primates -- Summary -- Chapter 15. Primary Visual Cortex Within the Cortico-Network -- Introduction -- Function -- Structure -- Structure-Function Relationships -- Conclusions -- Chapter 16. Behavioral Analyses of The Contributions of Cat Primary Visual Cortex to Vision -- Introduction -- The Behavioral Consequences of Lesions of the Visual Cortex -- Insights Gained from Cats Reared with Selected Forms of Early Visual Deprivation -- Conclusions -- Index.
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  • 5
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 86 (1982), S. 3489-3491 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Growth and change 25 (1994), S. 0 
    ISSN: 1468-2257
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography , Economics
    Notes: The paper presents a model of worktrip length for rural nonmetropolitan resident women. We find that some factors important in constraining the length of urban women's commute, such as linking worktrips with household-related trips. are less relevant in a rural setting. We also find that women working in non-feminized occupations, women receiving employer-provided health benefits, and women with better transportation resources, tend to have longer worktrips.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Anatomy and embryology 141 (1973), S. 3-37 
    ISSN: 1432-0568
    Keywords: CNS ; Cortical plate ; Neuroblasts ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In the cortical plate of the late prenatal rat fetus the neuroblasts can be considered to be of three types: mature neuroblasts which are prominent in the lower levels of the cortical plate and have some of the cytoplasmic and nuclear features of neurons, immature neuroblasts that have recently completed their migrations into the cortical plate, and migrating neuroblasts that are still in the process of moving to their definitive positions. Both of these latter types have darker cytoplasm than the mature neuroblasts. All of the neuroblasts have an apical process that extends directly towards the pial surface of the cortical plate and a basal process that is directed towards the intermediate zone of the developing hemisphere. In Golgi preparations some of these basal processes, particularly those of neuroblasts situated in the lower levels of the cortical plate, seem to have formed axons that pass through the intermediate zone to enter the developing white matter, in which they turn at right angles away from, and rarely toward, the midline. Other elements traversing the cortical plate are the ascending processes of spongioblasts that branch in the molecular layer and form expansions at the surface of the hemisphere. In the molecular layer the spongioblast terminal branches intertwine with the apical tufts of the ascending neuroblast processes and with thin processes that have the features of axons, to form a loose neuropil. In the cortical plate the spongioblast processes are usually closely and preferentially surrounded by the dark migrating neuroblasts and by the immature neuroblasts. Both of these latter may partially encompass spongioblast processes. Hence it is concluded that the spongioblast processes act as guides along which the migrating neuroblasts ascend through the cortical plate.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Anatomy and embryology 186 (1992), S. 183-193 
    ISSN: 1432-0568
    Keywords: Corpus callosum ; Horseradish peroxidase ; Inhibitory neurons ; Morphology ; Lysosomes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Callosally projecting neurons, labeled following injection of horseradish peroxidase (HRP) into the 17/18a border of the contralateral hemisphere, have been examined by light and electron microscopy. These neurons exhibit two types of horseradish peroxidase labeling: either a diffuse, Golgi-like labeling, or a granular, punctate labeling. The punctate type of HRP-labeling is the predominant form in nonpyramidal neurons, while pyramidal neurons frequently display either diffuse or punctate labeling. Only punctately labeled neurons have been examined in this study. Light microscopic analyses of 1-μm sections show that in the heavily labeled zone at the area 17/18a border approximately 9% of all of the cells in layer II/III are callosally projecting nonpyramidal cells, and 70% of them are callosally projecting pyramidal cells. Light and electron microscopic examinations indicate that the nonpyramidal neurons are a heterogeneous group which consists of small multipolar neurons, large multipolar neurons, small bipolar neurons, and large bipolar neurons. To investigate the ultrastructural appearance of the punctate HRP labeling, selected neurons have been examined in thin sections. In the electron microscope, the tetramethylbenzidine (TMB) reaction product appears as electron-dense crystals, while the diaminobenzidine (DAB) reaction product appears as dark, electron-dense material which fills the lysosomes. These lysosomes occasionally have a halo of reaction product, but often they are not morphologically distinguishable from dark lysosomes present within neurons from control animals in which the darkening results from staining the thin sections with lead citrate and uranyl acetate. However, labeled neurons possess more dark lysosomes than neurons from control animals. These additional dark lysosomes presumably contain the HRP reaction product visible by light microscopy.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Anatomy and embryology 182 (1990), S. 591-603 
    ISSN: 1432-0568
    Keywords: Corpus callosum ; Horseradish peroxidase ; Lysosomes ; Neural inhibition ; Visual pathways
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This investigation shows that some of the callosally projecting neurons in rat visual cortex are nonpyramidal cells. Callosally projecting neurons were labeled by injections of horseradish peroxidase (HRP) into the area 17/18 a border zone of the contralateral hemisphere. The retrogradely transported HRP was visualized with diaminobenzidine or with tetramethylbenzidine. In some of the labeled neurons the reaction product was diffuse, so that the neurons had a Golgi-like appearance, but in others the reaction product was granular, or punctate. The majority of neurons with a Golgi-like appearance were pyramidal cells, but one callosally projecting neuron from layer V area 18 a was confirmed by electron microscopy to be a nonpyramidal neuron. This dearth of well-filled nonpyramidal cells suggested that callosally projecting nonpyramidal neurons may not transport sufficient HRP to show Golgi-like filling, and so punctately labeled neurons from areas 17, 18 a and 18 b were examined. Reacted sections from areas 17, 18 a and 18 b of control animals, into which no tracer had been injected, were also examined, but in these control preparations no granules similar to the HRP granules within the neuronal profiles of the experimental animals were encountered. In methylene blue-stained 1-μm sections, neuronal profiles from the control animals possessed only blue staining lysosomes, while neuronal profiles from the experimental animals exhibited both lysosomes and HRP granules. It was determined, from the counts of HRP granules in neurons from the experimental animals, that in selected regions of areas 17, 18 a, and 18 b similar percentages of the pyramidal and nonpyramidal neuronal populations (ranging from 100% to 34%) contained HRP granules, and so had callosally projecting axons. However, most callosally projecting nonpyramidal neurons had far fewer HRP granules than the pyramidal neurons, again indicating that they transport less HRP. This could account for the fact that callosally projecting nonpyramidal neurons only rarely show a Golgi-like filling, and this could be one reason why such cells have been overlooked in most previous studies.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 245-247 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The total number and dimensions of these nerve fibres have been measured with the aid of electron microscopy in conjunction with light ...
    Type of Medium: Electronic Resource
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