Tactile discrimination of textures by Florida manatees ( Trichechus manatus latirostris )
Abstract Two male Florida manatees ( Trichechus manatus latirostris ) demonstrated sensitive tactile discrimination in a two‐alternative forced choice task, using a modified staircase method. Stimuli were acrylic plates with vertical gratings of ridges and grooves. The standard stimulus, present on...
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crwiley:10.1111/j.1748-7692.2012.00565.x 2023-12-03T10:29:05+01:00 Tactile discrimination of textures by Florida manatees ( Trichechus manatus latirostris ) Bauer, Gordon B. Gaspard III, Joseph C. Colbert, Debborah E. Leach, Jennifer B. Stamper, Sarah A. Mann, David Reep, Roger 2012 http://dx.doi.org/10.1111/j.1748-7692.2012.00565.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2012.00565.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2012.00565.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Marine Mammal Science volume 28, issue 4 ISSN 0824-0469 1748-7692 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2012 crwiley https://doi.org/10.1111/j.1748-7692.2012.00565.x 2023-11-09T13:58:50Z Abstract Two male Florida manatees ( Trichechus manatus latirostris ) demonstrated sensitive tactile discrimination in a two‐alternative forced choice task, using a modified staircase method. Stimuli were acrylic plates with vertical gratings of ridges and grooves. The standard stimulus, present on every trial, had 2 mm gratings and the comparison stimuli had wider gratings. The blindfolded subjects were trained to demonstrate discrimination by pressing the target with wider gratings. Discrimination thresholds (75% correct) for the subjects were 2.05 mm and 2.15 mm, corresponding to Weber fractions of 0.025 and 0.075, respectively. These results indicate thresholds on similar stimuli comparable to humans (index finger tasks) and better than harbor seals, Phoca vitulina , and the closely related Antillean manatee, Trichechus manatus manatus . Memory for the tactile task was quite stable for both subjects, over 2 yr in the case of one of the subjects. Video analysis of responses indicated that bristle‐like hairs, perioral bristles, and skin on the oral disk were involved in the discrimination response. Article in Journal/Newspaper Phoca vitulina Wiley Online Library (via Crossref) Marine Mammal Science 28 4 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Bauer, Gordon B. Gaspard III, Joseph C. Colbert, Debborah E. Leach, Jennifer B. Stamper, Sarah A. Mann, David Reep, Roger Tactile discrimination of textures by Florida manatees ( Trichechus manatus latirostris ) |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract Two male Florida manatees ( Trichechus manatus latirostris ) demonstrated sensitive tactile discrimination in a two‐alternative forced choice task, using a modified staircase method. Stimuli were acrylic plates with vertical gratings of ridges and grooves. The standard stimulus, present on every trial, had 2 mm gratings and the comparison stimuli had wider gratings. The blindfolded subjects were trained to demonstrate discrimination by pressing the target with wider gratings. Discrimination thresholds (75% correct) for the subjects were 2.05 mm and 2.15 mm, corresponding to Weber fractions of 0.025 and 0.075, respectively. These results indicate thresholds on similar stimuli comparable to humans (index finger tasks) and better than harbor seals, Phoca vitulina , and the closely related Antillean manatee, Trichechus manatus manatus . Memory for the tactile task was quite stable for both subjects, over 2 yr in the case of one of the subjects. Video analysis of responses indicated that bristle‐like hairs, perioral bristles, and skin on the oral disk were involved in the discrimination response. |
format |
Article in Journal/Newspaper |
author |
Bauer, Gordon B. Gaspard III, Joseph C. Colbert, Debborah E. Leach, Jennifer B. Stamper, Sarah A. Mann, David Reep, Roger |
author_facet |
Bauer, Gordon B. Gaspard III, Joseph C. Colbert, Debborah E. Leach, Jennifer B. Stamper, Sarah A. Mann, David Reep, Roger |
author_sort |
Bauer, Gordon B. |
title |
Tactile discrimination of textures by Florida manatees ( Trichechus manatus latirostris ) |
title_short |
Tactile discrimination of textures by Florida manatees ( Trichechus manatus latirostris ) |
title_full |
Tactile discrimination of textures by Florida manatees ( Trichechus manatus latirostris ) |
title_fullStr |
Tactile discrimination of textures by Florida manatees ( Trichechus manatus latirostris ) |
title_full_unstemmed |
Tactile discrimination of textures by Florida manatees ( Trichechus manatus latirostris ) |
title_sort |
tactile discrimination of textures by florida manatees ( trichechus manatus latirostris ) |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/j.1748-7692.2012.00565.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1748-7692.2012.00565.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1748-7692.2012.00565.x |
genre |
Phoca vitulina |
genre_facet |
Phoca vitulina |
op_source |
Marine Mammal Science volume 28, issue 4 ISSN 0824-0469 1748-7692 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1748-7692.2012.00565.x |
container_title |
Marine Mammal Science |
container_volume |
28 |
container_issue |
4 |
_version_ |
1784254227011338240 |