Vision in Cephalopods
Cephalopods usually have large and mobile eyes with which they constantly scan their environment. The eyes of cephalopods are single-chamber eyes which show resemblance to vertebrate eyes. However there are marked differences such as the cephalopod eye having an everted retina instead of an inverted...
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Frontiers Media SA
2021
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| বিষয়গুলি: | |
| অনলাইন ব্যবহার করুন: | 29659 |
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| _version_ | 1869514527270240256 |
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| author | Daniel Colaco Osorio Frederike Diana Hanke |
| author_browse | Daniel Colaco Osorio Frederike Diana Hanke |
| author_facet | Daniel Colaco Osorio Frederike Diana Hanke |
| author_sort | Daniel Colaco Osorio |
| collection | Directory of Open Access Books |
| description | Cephalopods usually have large and mobile eyes with which they constantly scan their environment. The eyes of cephalopods are single-chamber eyes which show resemblance to vertebrate eyes. However there are marked differences such as the cephalopod eye having an everted retina instead of an inverted retina found in vertebrates. Their visual system allows the cephalopods, depending on species, to discriminate objects on the basis of their shapes or sizes, images from mirror images or to learn from the observation of others. The cephalopod visual system is also polarization sensitive and controls camouflage, an extraordinary ability almost exclusive to all cephalopods; they are capable of rapidly adapting their body coloration as well as altering their body shape to any background, in almost any condition and even during self-motion. Visual scene analysis ultimately leads to motor outputs that cause an appropriate change in skin coloration or texture by acting directly on chromatophores or papillae in the skin. Mirroring these numerous functions of the visual system, large parts of the cephalopod brain are devoted to the processing of visual information. This research topic focuses on current advances in the knowledge of cephalopod vision. It is designed to facilitate merging questions, approaches and data available through the work of different researchers working on different aspects of cephalopod vision. Thus the research topic creates mutual awareness, and facilitates the growth of a field of research with a long tradition - cephalopod vision, visual perception and cognition as well as the mechanisms of camouflage. This research topic emerged from a workshop on “Vision in cephalopods” as part of the COST Action FA1301. |
| format | Online |
| id | doab-20.500.12854ir-62267 |
| institution | Directory of Open Access Books |
| language | eng |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Frontiers Media SA |
| publisherStr | Frontiers Media SA |
| record_format | ojs |
| spelling | doab-20.500.12854ir-622672024-03-31T22:45:04Z Vision in Cephalopods Daniel Colaco Osorio Frederike Diana Hanke QP1-981 Q1-390 visual system cuttlefish visual ecology visually guided locomotion MRI octopus optic lobes eye development camouflage visual cognition thema EDItEUR::M Medicine and Nursing::MF Pre-clinical medicine: basic sciences::MFG Physiology Cephalopods usually have large and mobile eyes with which they constantly scan their environment. The eyes of cephalopods are single-chamber eyes which show resemblance to vertebrate eyes. However there are marked differences such as the cephalopod eye having an everted retina instead of an inverted retina found in vertebrates. Their visual system allows the cephalopods, depending on species, to discriminate objects on the basis of their shapes or sizes, images from mirror images or to learn from the observation of others. The cephalopod visual system is also polarization sensitive and controls camouflage, an extraordinary ability almost exclusive to all cephalopods; they are capable of rapidly adapting their body coloration as well as altering their body shape to any background, in almost any condition and even during self-motion. Visual scene analysis ultimately leads to motor outputs that cause an appropriate change in skin coloration or texture by acting directly on chromatophores or papillae in the skin. Mirroring these numerous functions of the visual system, large parts of the cephalopod brain are devoted to the processing of visual information. This research topic focuses on current advances in the knowledge of cephalopod vision. It is designed to facilitate merging questions, approaches and data available through the work of different researchers working on different aspects of cephalopod vision. Thus the research topic creates mutual awareness, and facilitates the growth of a field of research with a long tradition - cephalopod vision, visual perception and cognition as well as the mechanisms of camouflage. This research topic emerged from a workshop on “Vision in cephalopods” as part of the COST Action FA1301. 2021-02-12T07:57:12Z 2021-02-12T07:57:12Z 2018-11-16 17:17:57 2018 book 29659 16648714 9782889454303 https://directory.doabooks.org/handle/20.500.12854/62267 eng Frontiers Research Topics image/jpeg Attribution 4.0 International https://www.frontiersin.org/research-topics/4856/vision-in-cephalopods Frontiers Media SA 10.3389/978-2-88945-430-3 10.3389/978-2-88945-430-3 bf5ce210-e72e-4860-ba9b-c305640ff3ae 9782889454303 161 open access |
| spellingShingle | QP1-981 Q1-390 visual system cuttlefish visual ecology visually guided locomotion MRI octopus optic lobes eye development camouflage visual cognition thema EDItEUR::M Medicine and Nursing::MF Pre-clinical medicine: basic sciences::MFG Physiology Daniel Colaco Osorio Frederike Diana Hanke Vision in Cephalopods |
| title | Vision in Cephalopods |
| title_full | Vision in Cephalopods |
| title_fullStr | Vision in Cephalopods |
| title_full_unstemmed | Vision in Cephalopods |
| title_short | Vision in Cephalopods |
| title_sort | vision in cephalopods |
| topic | QP1-981 Q1-390 visual system cuttlefish visual ecology visually guided locomotion MRI octopus optic lobes eye development camouflage visual cognition thema EDItEUR::M Medicine and Nursing::MF Pre-clinical medicine: basic sciences::MFG Physiology |
| topic_facet | QP1-981 Q1-390 visual system cuttlefish visual ecology visually guided locomotion MRI octopus optic lobes eye development camouflage visual cognition thema EDItEUR::M Medicine and Nursing::MF Pre-clinical medicine: basic sciences::MFG Physiology |
| url | 29659 |
| work_keys_str_mv | AT danielcolacoosorio visionincephalopods AT frederikedianahanke visionincephalopods |