The Experts below are selected from a list of 231 Experts worldwide ranked by ideXlab platform
A Cronin - One of the best experts on this subject based on the ideXlab platform.
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hand rearing and reintroduction of woolly Monkey lagothrix lagotricha at Monkey world ape rescue centre uk
International Zoo Yearbook, 2012Co-Authors: H A Barnes, A CroninAbstract:Woolly Monkey populations are decreasing in the wild and in captivity. Woolly Monkeys have a reputation for being difficult to keep and breed, infant mortality is high and hand-rearing is rarely attempted or successful. Between 2006 and 2008, three ♂ Woolly Monkeys Lagothrix lagotricha born at Monkey World – Ape Rescue Centre, UK, failed to suckle and these infants were removed for hand-rearing. Because no published information was available to inform our procedures, detailed records of the hand-rearing and reintroduction process were kept, and an account is provided here. Although parent-rearing is always the best option, this paper details the hand-rearing and reintroduction process used successfully at Monkey World in order to encourage other keepers who are managing suboptimal birth circumstances in captive Woolly Monkey populations.
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Hand‐rearing and reintroduction of Woolly Monkey Lagothrix lagotricha at Monkey World – Ape Rescue Centre, UK
International Zoo Yearbook, 2011Co-Authors: H A Barnes, A CroninAbstract:Woolly Monkey populations are decreasing in the wild and in captivity. Woolly Monkeys have a reputation for being difficult to keep and breed, infant mortality is high and hand-rearing is rarely attempted or successful. Between 2006 and 2008, three ♂ Woolly Monkeys Lagothrix lagotricha born at Monkey World – Ape Rescue Centre, UK, failed to suckle and these infants were removed for hand-rearing. Because no published information was available to inform our procedures, detailed records of the hand-rearing and reintroduction process were kept, and an account is provided here. Although parent-rearing is always the best option, this paper details the hand-rearing and reintroduction process used successfully at Monkey World in order to encourage other keepers who are managing suboptimal birth circumstances in captive Woolly Monkey populations.
Steven M Podos - One of the best experts on this subject based on the ideXlab platform.
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effect of win 55212 2 a cannabinoid receptor agonist on aqueous humor dynamics in Monkeys
Archives of Ophthalmology, 2003Co-Authors: Fred Y Chien, Rongfang Wang, Thomas W. Mittag, Steven M PodosAbstract:OBJECTIVE: To evaluate the effects of WIN 55212-2, a cannabinoid receptor agonist, on intraocular pressure and aqueous humor dynamics in normal Monkeys and Monkeys with glaucoma. METHODS: Intraocular pressure was measured prior to and up to 6 hours after the topical administration of WIN 55212-2 to 1 eye of 5 normal Monkeys and to the glaucomatous eye of 8 Monkeys with unilateral laser-induced glaucoma. Tonographic outflow facility and fluorophotometric flow rates of aqueous humor were measured in 6 normal Monkeys before and after treatment. RESULTS: In normal Monkeys, a single dose of WIN 55212-2 reduced intraocular pressure for 4, 5, or 6 hours, with a maximum reduction of 1.4 +/- 0.4 (mean +/- SEM) mm Hg, 2.9 +/- 0.4 mm Hg, and 3.4 +/- 0.6 mm Hg following the 0.07%, 0.2%, and 0.5% concentrations, respectively (P =.08). In 8 glaucomatous Monkey eyes, the ocular hypotensive effect was maintained for 5 days with twice-daily administration of 0.5% WIN 55212-2. Outflow facility was unchanged (P =.34) and aqueous humor flow was decreased by 18% (P =.04) in the treated eyes compared with vehicle-treated contralateral control eyes in normal Monkeys. CONCLUSIONS: WIN 55212-2, a cannabinoid agonist at the CB(1) receptor, reduces intraocular pressure in both normal and glaucomatous Monkey eyes. A decrease of aqueous flow appears to account for the intraocular pressure reduction in normal Monkey eyes. CLINICAL RELEVANCE: Cannabinoid agonists at the CB(1) receptor, a new class of antiglaucoma agents that is different from currently used clinical drugs, may have clinical potential.
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Effect of WIN 55212-2, a Cannabinoid Receptor Agonist, on Aqueous Humor Dynamics in Monkeys
Archives of Ophthalmology, 2003Co-Authors: Fred Y Chien, Rongfang Wang, Thomas W. Mittag, Steven M PodosAbstract:Objective To evaluate the effects of WIN 55212-2, a cannabinoid receptor agonist, on intraocular pressure and aqueous humor dynamics in normal Monkeys and Monkeys with glaucoma. Methods Intraocular pressure was measured prior to and up to 6 hours after the topical administration of WIN 55212-2 to 1 eye of 5 normal Monkeys and to the glaucomatous eye of 8 Monkeys with unilateral laser-induced glaucoma. Tonographic outflow facility and fluorophotometric flow rates of aqueous humor were measured in 6 normal Monkeys before and after treatment. Results In normal Monkeys, a single dose of WIN 55212-2 reduced intraocular pressure for 4, 5, or 6 hours, with a maximum reduction of 1.4 ± 0.4(mean ± SEM) mmHg, 2.9 ± 0.4 mmHg, and 3.4 ± 0.6 mm Hg following the 0.07%, 0.2%, and 0.5% concentrations, respectively ( P = .08). In 8 glaucomatous Monkey eyes, the ocular hypotensive effect was maintained for 5 days with twice-daily administration of 0.5% WIN 55212-2. Outflow facility was unchanged ( P = .34) and aqueous humor flow was decreased by 18% ( P =.04) in the treated eyes compared with vehicle-treated contralateral control eyes in normal Monkeys. Conclusions WIN 55212-2, a cannabinoid agonist at the CB 1 receptor, reduces intraocular pressure in both normal and glaucomatous Monkey eyes. A decrease of aqueous flow appears to account for the intraocular pressure reduction in normal Monkey eyes. Clinical Relevance Cannabinoid agonists at the CB 1 receptor, a new class of antiglaucoma agents that is different from currently used clinical drugs, may have clinical potential.
H A Barnes - One of the best experts on this subject based on the ideXlab platform.
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hand rearing and reintroduction of woolly Monkey lagothrix lagotricha at Monkey world ape rescue centre uk
International Zoo Yearbook, 2012Co-Authors: H A Barnes, A CroninAbstract:Woolly Monkey populations are decreasing in the wild and in captivity. Woolly Monkeys have a reputation for being difficult to keep and breed, infant mortality is high and hand-rearing is rarely attempted or successful. Between 2006 and 2008, three ♂ Woolly Monkeys Lagothrix lagotricha born at Monkey World – Ape Rescue Centre, UK, failed to suckle and these infants were removed for hand-rearing. Because no published information was available to inform our procedures, detailed records of the hand-rearing and reintroduction process were kept, and an account is provided here. Although parent-rearing is always the best option, this paper details the hand-rearing and reintroduction process used successfully at Monkey World in order to encourage other keepers who are managing suboptimal birth circumstances in captive Woolly Monkey populations.
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Hand‐rearing and reintroduction of Woolly Monkey Lagothrix lagotricha at Monkey World – Ape Rescue Centre, UK
International Zoo Yearbook, 2011Co-Authors: H A Barnes, A CroninAbstract:Woolly Monkey populations are decreasing in the wild and in captivity. Woolly Monkeys have a reputation for being difficult to keep and breed, infant mortality is high and hand-rearing is rarely attempted or successful. Between 2006 and 2008, three ♂ Woolly Monkeys Lagothrix lagotricha born at Monkey World – Ape Rescue Centre, UK, failed to suckle and these infants were removed for hand-rearing. Because no published information was available to inform our procedures, detailed records of the hand-rearing and reintroduction process were kept, and an account is provided here. Although parent-rearing is always the best option, this paper details the hand-rearing and reintroduction process used successfully at Monkey World in order to encourage other keepers who are managing suboptimal birth circumstances in captive Woolly Monkey populations.
Kazuo Fujita - One of the best experts on this subject based on the ideXlab platform.
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delay of gratification in capuchin Monkeys cebus apella and squirrel Monkeys saimiri sciureus
Journal of Comparative Psychology, 2010Co-Authors: James R Anderson, Hika Kuroshima, Kazuo FujitaAbstract:: In two separate series of experiments four capuchin Monkeys (Cebus apella) and four squirrel Monkeys (Saimiri sciureus) were given demonstration trials in which a human transferred six pieces of food, one by one, from out of each Monkey's reach to within reach. On test trials the Monkey could reach for the transferred food at any time, an action that ended the trial. Therefore, it was in the Monkey's interest to allow food items to accumulate before reaching for food. No capuchin Monkey showed delay of gratification in the first phase of testing. An attempt to facilitate performance by presenting a single free food item immediately before the transfer failed (Phase 2). In Phase 3, when the transferred food items increased progressively in size, two capuchins maintained delays, and frequently waited for all 6 items to accumulate. One squirrel Monkey started to delay gratification in Phase 1, and another did so in Phase 3. A return to single-sized food items did not impair the Monkeys' ability to delay. Short (1 s) interitem delays were generally easier to maintain than longer delays (3 or 5 s). In both species the delaying individuals bridged the delays idiosyncratically.
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metamemory in tufted capuchin Monkeys cebus apella
Animal Cognition, 2009Co-Authors: Kazuo FujitaAbstract:Whereas evidence for metacognition by nonhuman primates has been obtained in great apes and old world Monkeys, it is weaker in new world Monkeys. For instance, capuchin Monkeys may fail to recognize their own knowledge of the location of invisible bait. In the present study, we tested whether tufted capuchin Monkeys would flexibly change their behavior in a delayed matching-to-sample (DMTS) test depending upon the strength of their memory trace of the sample. In Experiment 1, two Monkeys were tested on a modified 9-alternative DMTS task with various delays on a computerized display. In some trials, the Monkeys could choose whether to go for a memory test or for a simple key touch as an escape from the test. In other trials, they were forced to go for the memory test. Both Monkeys escaped from the memory test more often when their matching accuracy on forced tests was lower. In one of the Monkeys, the matching accuracies on chosen memory tests decreased more slowly as a function of delay length, and were higher after long delays than those on forced memory tests. This suggests that at least one capuchin Monkey was able to recognize the strength of his own memory trace. Experiment 2 employed occasional no-sample tests, in which the Monkeys faced the task choice without presentation of any sample for the trial. The Monkey who was successful in Experiment 1 declined the memory test more often in no-sample trials than regular trials, further indicating metamemory in this individual. In Experiment 3, this successful Monkey received a task, in which he was sometimes able to choose between shape MTS or texture MTS tasks. However, his matching accuracies did not differ between chosen tasks and forced tasks. Thus, the metamemory possessed by this new world Monkey species may be more like a flag, showing strength of memory trace, than an elaborate representation showing details of the memory trace.
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japanese macaques form a cross modal representation of their own species in their first year of life
Primates, 2006Co-Authors: Kazuo Fujita, Ikuma Adachi, Hiroko Kuwahata, Masaki Tomonaga, Tetsuro MatsuzawaAbstract:We tested whether infant Japanese macaques (Macaca fuscata) have a cross-modal representation of their own species. We presented Monkeys with a photograph of either a Monkey or a human face on an LCD monitor after playing back a vocalization of one of those two species. The subjects looked at the monitor longer when a human face was presented after the Monkey vocalization than when the same face was presented after human vocalization. This suggests that Monkeys recall and expect a Monkey’s face upon hearing a Monkey’s voice.
Fred Y Chien - One of the best experts on this subject based on the ideXlab platform.
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effect of win 55212 2 a cannabinoid receptor agonist on aqueous humor dynamics in Monkeys
Archives of Ophthalmology, 2003Co-Authors: Fred Y Chien, Rongfang Wang, Thomas W. Mittag, Steven M PodosAbstract:OBJECTIVE: To evaluate the effects of WIN 55212-2, a cannabinoid receptor agonist, on intraocular pressure and aqueous humor dynamics in normal Monkeys and Monkeys with glaucoma. METHODS: Intraocular pressure was measured prior to and up to 6 hours after the topical administration of WIN 55212-2 to 1 eye of 5 normal Monkeys and to the glaucomatous eye of 8 Monkeys with unilateral laser-induced glaucoma. Tonographic outflow facility and fluorophotometric flow rates of aqueous humor were measured in 6 normal Monkeys before and after treatment. RESULTS: In normal Monkeys, a single dose of WIN 55212-2 reduced intraocular pressure for 4, 5, or 6 hours, with a maximum reduction of 1.4 +/- 0.4 (mean +/- SEM) mm Hg, 2.9 +/- 0.4 mm Hg, and 3.4 +/- 0.6 mm Hg following the 0.07%, 0.2%, and 0.5% concentrations, respectively (P =.08). In 8 glaucomatous Monkey eyes, the ocular hypotensive effect was maintained for 5 days with twice-daily administration of 0.5% WIN 55212-2. Outflow facility was unchanged (P =.34) and aqueous humor flow was decreased by 18% (P =.04) in the treated eyes compared with vehicle-treated contralateral control eyes in normal Monkeys. CONCLUSIONS: WIN 55212-2, a cannabinoid agonist at the CB(1) receptor, reduces intraocular pressure in both normal and glaucomatous Monkey eyes. A decrease of aqueous flow appears to account for the intraocular pressure reduction in normal Monkey eyes. CLINICAL RELEVANCE: Cannabinoid agonists at the CB(1) receptor, a new class of antiglaucoma agents that is different from currently used clinical drugs, may have clinical potential.
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Effect of WIN 55212-2, a Cannabinoid Receptor Agonist, on Aqueous Humor Dynamics in Monkeys
Archives of Ophthalmology, 2003Co-Authors: Fred Y Chien, Rongfang Wang, Thomas W. Mittag, Steven M PodosAbstract:Objective To evaluate the effects of WIN 55212-2, a cannabinoid receptor agonist, on intraocular pressure and aqueous humor dynamics in normal Monkeys and Monkeys with glaucoma. Methods Intraocular pressure was measured prior to and up to 6 hours after the topical administration of WIN 55212-2 to 1 eye of 5 normal Monkeys and to the glaucomatous eye of 8 Monkeys with unilateral laser-induced glaucoma. Tonographic outflow facility and fluorophotometric flow rates of aqueous humor were measured in 6 normal Monkeys before and after treatment. Results In normal Monkeys, a single dose of WIN 55212-2 reduced intraocular pressure for 4, 5, or 6 hours, with a maximum reduction of 1.4 ± 0.4(mean ± SEM) mmHg, 2.9 ± 0.4 mmHg, and 3.4 ± 0.6 mm Hg following the 0.07%, 0.2%, and 0.5% concentrations, respectively ( P = .08). In 8 glaucomatous Monkey eyes, the ocular hypotensive effect was maintained for 5 days with twice-daily administration of 0.5% WIN 55212-2. Outflow facility was unchanged ( P = .34) and aqueous humor flow was decreased by 18% ( P =.04) in the treated eyes compared with vehicle-treated contralateral control eyes in normal Monkeys. Conclusions WIN 55212-2, a cannabinoid agonist at the CB 1 receptor, reduces intraocular pressure in both normal and glaucomatous Monkey eyes. A decrease of aqueous flow appears to account for the intraocular pressure reduction in normal Monkey eyes. Clinical Relevance Cannabinoid agonists at the CB 1 receptor, a new class of antiglaucoma agents that is different from currently used clinical drugs, may have clinical potential.
