Cognitive abilities in Malawi cichlids (Pseudotropheus sp.): matching-to-sample and image/mirror-image discriminations.
Cognitive abilities in Malawi cichlids (Pseudotropheus sp.): matching-to-sample and image/mirror-image discriminations.
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DOI：
10.1371/journal.pone.0057363
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发表时间：
2013
期刊：
影响因子：
3.7
通讯作者：
Schluessel V
中科院分区：
文献类型：
--
作者：
Gierszewski S;Bleckmann H;Schluessel V
识别和区分视觉刺激的能力是许多物种日常生存的基础。虽然认知的各个方面，包括复杂的视觉辨别任务，以前成功地评估了鱼，它仍然是未知的，如果鱼可以学习一个匹配到样本的概念，使用几何形状和图像之间的区别和镜像对应。为此，总共有9个马拉维慈鲷（Pseudotropheus sp.）在两个匹配样本（MTS）和三个两个选择歧视任务，使用几何，二维视觉刺激。在三个辨别实验中，有两个实验主要考察被试对图像及其镜像的辨别能力，最后一个实验是一般辨别测试。所有的鱼都表现出快速的联想学习，但在40个会话的时间内无法成功地执行同时MTS程序。八分之三的鱼学会了区分垂直反射的图像和镜像;然而，当刺激水平反射时，没有一条鱼掌握了这项任务。这些结果表明，与水平镜像相比，垂直镜像具有更好的辨别能力，这一观察结果在动物镜像辨别的文献中广泛存在。所有的鱼表现良好，在一般的视觉辨别任务，从而支持以前的结果，为这个物种。
The ability to recognize and distinguish between visual stimuli is fundamental for everyday survival of many species. While diverse aspects of cognition, including complex visual discrimination tasks were previously successfully assessed in fish, it remains unknown if fish can learn a matching-to-sample concept using geometrical shapes and discriminate between images and their mirror-image counterparts. For this purpose a total of nine Malawi cichlids (Pseudotropheus sp.) were trained in two matching-to-sample (MTS) and three two-choice discrimination tasks using geometrical, two-dimensional visual stimuli. Two out of the three discrimination experiments focused on the ability to discriminate between images and their mirror-images, the last was a general discrimination test. All fish showed quick associative learning but were unable to perform successfully in a simultaneous MTS procedure within a period of 40 sessions. Three out of eight fish learned to distinguish between an image and its mirror-image when reflected vertically; however none of the fish mastered the task when the stimulus was reflected horizontally. These results suggest a better discrimination ability of vertical compared to horizontal mirror-images, an observation that is widespread in literature on mirror-image discrimination in animals. All fish performed well in the general visual discrimination task, thereby supporting previous results obtained for this species.
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影响因子：
56.9
作者：
CARTER, DE;ECKERMAN, DA
通讯作者：
ECKERMAN, DA
影响因子：
1.7
作者：
BRADSHAW, J;BRADLEY, D;PATTERSON, K
通讯作者：
PATTERSON, K
DOI：
10.1007/s00359-011-0685-y
发表时间：
2012-01-01
影响因子：
2.1
作者：
Frech, Birte;Vogtsberger, Melanie;Neumeyer, Christa
通讯作者：
Neumeyer, Christa
影响因子：
1.3
作者：
Colwill, RM;Raymond, MP;Escudero, H
通讯作者：
Escudero, H
影响因子：
2.7
作者：
BLOUGH, DS
通讯作者：
BLOUGH, DS