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Odor span task in dogs (Canis familiaris).
Animal Cognition ( IF 2.7 ) Pub Date : 2020-02-25 , DOI: 10.1007/s10071-020-01362-7
Sarah Krichbaum 1 , Bart Rogers 2 , Emma Cox 1 , L Paul Waggoner 2 , Jeffrey S Katz 1
Affiliation  

Working memory is essential for organisms to solve problems related to their survival and to adapt to changes in their environment. Researchers sought to create a non-human model of working memory that could be used to better understand its predictive value and underlying brain function. Several of these studies were conducted using the odor span task (OST) with rodents, and here, we present the first OST with domestic dogs (n = 6). The OST is an incrementing non-match-to-sample task in which dogs were presented with both a session novel (S +) and a previously encountered (S −) odor on each trial. A response to the session novel odor was always reinforced. Upon meeting training criterion on sessions with 24 trials or odors to remember, the dogs were tested on the OST with up to 72 odors to remember in the session. All dogs learned the OST and displayed accurate performance (≥ 79%) for the largest set size of 72 odors. In an analysis focused on the effect of intervening odors (i.e., the number of trials since the S − was last encountered), dogs demonstrated above-chance performance for up to eight intervening odors. The implications of these findings are discussed in the context of dog working memory for odors.

中文翻译:

狗的臭味跨度任务(Canis domesticis)。

工作记忆对于有机体解决与其生存有关的问题并适应环境变化至关重要。研究人员试图创建一种非人类的工作记忆模型,该模型可以用来更好地理解其预测价值和潜在的脑功能。一些这些研究都是使用进行气味跨度任务啮齿类动物(OST),在这里,我们提出用家养的狗第一OST(ñ = 6)。OST是一项递增的不匹配样本任务,其中在每次试验中向狗展示会话小说(S +)和先前遇到的(S-)气味。对会议的反应新颖的气味总是被加强。在满足训练标准时,要记住24种试验或气味,然后在OST上对狗进行测试,使其在记忆中要记住72种气味。所有狗都学会了OST,并在72种气味的最大设定尺寸下显示出准确的性能(≥79%)。在一项针对居间气味影响的分析中(即,自上次遇到S-以来的试验次数),狗表现出超过八种居间气味的机会。这些发现的含义将在狗对异味的工作记忆中进行讨论。
更新日期:2020-02-25
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