The Anatomy and Physiology of Gating Retinal Signals in the Mammalian Lateral Geniculate Nucleus
In the mammalian visual system, the lateral geniculate nucleus is commonly thought to act merely as a relay for the transmission of visual information from the retina to the visual cortex, a relay without significant elaboration in receptive field properties or signal strength. However, many m...
| Main Authors: | , |
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| Language: | en_US |
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2004
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| Subjects: | |
| Online Access: | http://hdl.handle.net/1721.1/5624 |
| _version_ | 1826209984618168320 |
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| author | Sherman, S. Murray Koch, Christof |
| author_facet | Sherman, S. Murray Koch, Christof |
| author_sort | Sherman, S. Murray |
| collection | MIT |
| description | In the mammalian visual system, the lateral geniculate nucleus is commonly thought to act merely as a relay for the transmission of visual information from the retina to the visual cortex, a relay without significant elaboration in receptive field properties or signal strength. However, many morphological and electrophysiological observations are at odds with this view. In this paper, we will review the different anatomical pathways and biophysical mechanisms possibly implementing a selective gating of visual information flow from the retina to the visual cortex. We will argue that the lateral geniculate nucleus in mammals is one of the earliest sites where selective, visual attention operates and where general changes in neuronal excitability as a function of the behavioral states of the animal, for instance, sleep, paradoxical sleep, arousal, etc., occur. |
| first_indexed | 2024-09-23T14:38:30Z |
| id | mit-1721.1/5624 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:38:30Z |
| publishDate | 2004 |
| record_format | dspace |
| spelling | mit-1721.1/56242019-04-12T08:26:43Z The Anatomy and Physiology of Gating Retinal Signals in the Mammalian Lateral Geniculate Nucleus Sherman, S. Murray Koch, Christof visual system lateral geniculate nucleus gating signals svisual attention top-down processing. In the mammalian visual system, the lateral geniculate nucleus is commonly thought to act merely as a relay for the transmission of visual information from the retina to the visual cortex, a relay without significant elaboration in receptive field properties or signal strength. However, many morphological and electrophysiological observations are at odds with this view. In this paper, we will review the different anatomical pathways and biophysical mechanisms possibly implementing a selective gating of visual information flow from the retina to the visual cortex. We will argue that the lateral geniculate nucleus in mammals is one of the earliest sites where selective, visual attention operates and where general changes in neuronal excitability as a function of the behavioral states of the animal, for instance, sleep, paradoxical sleep, arousal, etc., occur. 2004-10-01T20:17:23Z 2004-10-01T20:17:23Z 1985-06-01 AIM-825 http://hdl.handle.net/1721.1/5624 en_US AIM-825 34 p. 6687932 bytes 5247811 bytes application/postscript application/pdf application/postscript application/pdf |
| spellingShingle | visual system lateral geniculate nucleus gating signals svisual attention top-down processing. Sherman, S. Murray Koch, Christof The Anatomy and Physiology of Gating Retinal Signals in the Mammalian Lateral Geniculate Nucleus |
| title | The Anatomy and Physiology of Gating Retinal Signals in the Mammalian Lateral Geniculate Nucleus |
| title_full | The Anatomy and Physiology of Gating Retinal Signals in the Mammalian Lateral Geniculate Nucleus |
| title_fullStr | The Anatomy and Physiology of Gating Retinal Signals in the Mammalian Lateral Geniculate Nucleus |
| title_full_unstemmed | The Anatomy and Physiology of Gating Retinal Signals in the Mammalian Lateral Geniculate Nucleus |
| title_short | The Anatomy and Physiology of Gating Retinal Signals in the Mammalian Lateral Geniculate Nucleus |
| title_sort | anatomy and physiology of gating retinal signals in the mammalian lateral geniculate nucleus |
| topic | visual system lateral geniculate nucleus gating signals svisual attention top-down processing. |
| url | http://hdl.handle.net/1721.1/5624 |
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