34 LGN amp V1

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http://youtube.com/watch?v=3QChav4C4-E

Dr. Jeffery Jones explores the complex role of the Lateral Geniculate Nucleus (LGN) in visual perception. We uncover how the LGN, a key component of the thalamus, integrates and processes visual information from the retina, orchestrating a crucial step in how we see the world. Discover the LGN's unique structure, its function in binocular vision, and its role in attention and awareness. • Key Topics Time Codes: • [00:00:00] Introduction to the LGN's Role in Perception • [00:00:30] Optic Nerve and Optic Chiasm: The Path to the LGN • [00:00:55] LGN's Location and Structure • [00:01:19] Layers of the LGN and Their Functions • [00:01:53] LGN's Eye-Specific Input Channels • [00:02:20] P-Type and M-Type Ganglion Cells in LGN • [00:02:44] Detail vs. Motion: LGN's Dual Processing • [00:03:33] The Non-M, Non-P Cells and the Coniocellular Layers • [00:03:57] Binocular Processing and Depth Perception in LGN • [00:04:22] LGN's Role in Visual Attention and Information Filtering • [00:04:49] The LGN and Brain Feedback: A Two-Way Communication • [00:05:12] LGN Damage and Visual Field Defects • [00:05:34] Researching LGN's Role in Visual Disorders • Join us for more insights into the workings of our senses. Don't forget to like, comment, and subscribe for more explorations into the wonders of neuroscience. • References: • Bhimji, S. (2023). Lateral geniculate nucleus. In StatPearls. StatPearls Publishing LLC. CC BY-NC-ND 4.0. URL: https://www.ncbi.nlm.nih.gov/books/NB... • Bogart, B. (2014, February 5). Illustration of image as 'seen' by the retina independent of optic nerve and striate cortex [Image]. Wikimedia Commons. CC BY-SA 3.0. URL: https://commons.wikimedia.org/wiki/Fi... • Gray, H. (1918). Diagram of the visual pathways [Image]. Wikimedia Commons. Public Domain. URL: https://commons.wikimedia.org/wiki/Fi... • Nieto, M. P. (2015). Human visual pathway [SVG file]. Wikimedia Commons. CC BY-SA 4.0. URL: https://commons.wikimedia.org/wiki/Fi... • Pancrat. (2011). Diagram of a section of the lateral geniculate body (Nissl staining) [Image]. Wikimedia Commons. CC BY-SA 3.0. URL: https://commons.wikimedia.org/wiki/Fi... • Bibliography: • Neural Pathways and Vision: • Nassi, J. J., Callaway, E. M. (2009). Parallel processing strategies of the primate visual system. Nature Reviews Neuroscience, 10(5), 360-372. https://www.nature.com/articles/nrn2619 • Schiller, P. H., Malpeli, J. G. (1978). Functional specificity of lateral geniculate nucleus laminae of the rhesus monkey. The Journal of Neurophysiology, 41(3), 788-797. https://pubmed.ncbi.nlm.nih.gov/96227/ • Visual Cortex: • Hubel, D. H., Wiesel, T. N. (2005). Brain and visual perception: the story of a 25-year collaboration. Oxford University Press. • Roe, A. W., et al. (2012). Toward a unified theory of visual area V4. Neuron, 74(1), 12-29. https://pubmed.ncbi.nlm.nih.gov/22500... • Feature Detectors: • Hubel, D. H., Wiesel, T. N. (1962). Receptive fields, binocular interaction and functional architecture in the cat's visual cortex. The Journal of Physiology, 160(1), 106-154. https://physoc.onlinelibrary.wiley.co... • Neural Maps and Columns: • Mountcastle, V. B. (1997). The columnar organization of the neocortex. Brain, 120(4), 701-722. https://pubmed.ncbi.nlm.nih.gov/9153131/ • Swindale, N. V. (1991). Coverage and the design of striate cortex. Biological Cybernetics, 65(6), 415-424. https://pubmed.ncbi.nlm.nih.gov/1958727/ • Visual Pathways Beyond the Visual Cortex: • Goodale, M. A., Milner, A. D. (1992). Separate visual pathways for perception and action. Trends in Neurosciences, 15(1), 20-25. https://www.sciencedirect.com/science... • Ungerleider, L. G., Mishkin, M. (1982). Two cortical visual systems. In Analysis of Visual Behavior (pp. 549-586). MIT Press. • Higher-Level Visual Processing Regions: • Kanwisher, N., McDermott, J., Chun, M. M. (1997). The fusiform face area: a module in human extrastriate cortex specialized for face perception. The Journal of Neuroscience, 17(11), 4302-4311. https://pubmed.ncbi.nlm.nih.gov/9151747/ • Grill-Spector, K., Malach, R. (2004). The human visual cortex. Annual Review of Neuroscience, 27, 649-677. https://pubmed.ncbi.nlm.nih.gov/15217... • Flexible Receptive Fields: • Gilbert, C. D., Li, W. (2013). Top-down influences on visual processing. Nature Reviews Neuroscience, 14(5), 350-363. https://www.nature.com/articles/nrn3476 • This series is brought to you by Fundamental Science Inc., dedicated to providing educational content that illuminates the science behind our daily lives.

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