Some properties of habituation of siphon withdrawal in the slimy clam (Ruditapes decussatus)

IF 1.3 4区生物学 Q4 BEHAVIORAL SCIENCES Behavioural Processes Pub Date : 2024-09-14 DOI:10.1016/j.beproc.2024.105100

Pablo Rubio , Ignacio Loy , Ricardo Pellón

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Abstract

A first approximation to the study of learning processes in bivalves is presented. A habituation procedure was developed using the slimy clam Ruditapes decussatus. The percentage of siphon withdrawal when they were exposed to a white light was measured. In Experiment 1, a habituation-discrimination procedure was used to study the stimulus intensity effect (350-lm vs 806 lm). Clams exposed to 350-lm showed a faster habituation than those exposed to 806-lm. Experiment 2 studied the effect of stimulus and intertrial interval (ITI) duration using a 2×2 design. Trials lasted 20 or 180 seconds, and the ITI lasted 5 or 10 minutes. A combined effect of these two parameters was obtained. Habituation was faster in clams exposed to 180-sec trials with a 5-min ITI. Finally, in Experiment 3 clams were trained with five blocks of five trials with a 5-min ITI. Groups differed on trial duration (20 or 180 s). The results showed a general spontaneous recovery effect that was more pronounced for the 180 s group. Also, it was found in this experimental condition a reduced response 24 hours after finishing training (long-term habituation). Altogether, this series of experiments constitutes a first systematic demonstration of habituation in bivalves.

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粘蛤（Ruditapes decussatus）虹吸管抽吸习惯化的一些特性

本文介绍了双壳类动物学习过程研究的第一种近似方法。利用粘蛤Ruditapes decussatus开发了一种习惯化程序。测量了当它们暴露在白光下时虹吸管抽出的百分比。在实验 1 中，使用了习惯化-辨别程序来研究刺激强度效应（350-lm 与 806 lm）。暴露在 350-lm 光下的蛤蜊比暴露在 806-lm 光下的蛤蜊表现出更快的习惯性。实验 2 采用 2×2 设计研究了刺激和试验间歇（ITI）持续时间的影响。试验持续 20 或 180 秒，ITI 持续 5 或 10 分钟。这两个参数产生了综合效应。在 180 秒的试验和 5 分钟的 ITI 中，蛤蜊的习惯化速度更快。最后，在实验 3 中，对蛤蜊进行了五个试验组的训练，每个试验组有五个试验，ITI 为 5 分钟。各组的试验持续时间不同（20 秒或 180 秒）。结果显示，180 秒组的自发恢复效果更为明显。此外，在这种实验条件下，还发现在完成训练 24 小时后，反应有所减弱（长期习惯化）。总之，这一系列实验首次系统地展示了双壳类动物的习惯性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Behavioural Processes 生物-动物学

CiteScore

2.70

自引率

7.70%

发文量

144

审稿时长

4-8 weeks

期刊介绍： Behavioural Processes is dedicated to the publication of high-quality original research on animal behaviour from any theoretical perspective. It welcomes contributions that consider animal behaviour from behavioural analytic, cognitive, ethological, ecological and evolutionary points of view. This list is not intended to be exhaustive, and papers that integrate theory and methodology across disciplines are particularly welcome.