• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Behavioral and psychological mechanisms of olfactory learning in the honey bee, Apis mellifera.
【24h】

Behavioral and psychological mechanisms of olfactory learning in the honey bee, Apis mellifera.

机译：蜜蜂嗅觉学习的行为和心理机制。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A variety of factors could influence how animals learn and generalize among stimuli beginning with (1) limitations of the sensory system to (2) changes within the central nervous system due to physiological or genotypical limitations. For example, several studies have identified a significant amount of inter-individual variability in olfactory learning performance in the honey bee. This variability could be due to internal factors associated with age or caste-specific alteration of motivational state. Results from the first study indicate that when genotype is not manipulated, neither age nor caste had an effect on motivational state or discrimination learning performance. Therefore, the focus of research was shifted to an investigation of other factors that govern olfactory learning, beginning with an examination of stimulus processing in the peripheral nervous system.; Electroantennogram (EAG) analyses of sensory interactions between pheromonal and non-pheromonal odorants provide evidence against purely labeled-line coding for these odorants. Thus, broad-based cross-fiber coding for these odorants could at least in part explain behavioral phenomena such as overshadowing wherein response to an odorant is lower if a subject was trained to a mixture containing that odorant than if the subject was trained to the pure odorant only. One substantial finding of the EAG study was the dramatic effect of odor concentration. Therefore, the next set of experiments were focused on the effect of odor concentration on behavioral phenomena such as stimulus generalization. Results from this study indicate that sensory modulation in the antennal level as a result of recent experience could influence patterns of generalization to novel concentrations. However, such changes in sensitivity of sensory neurons in the peripheral nervous system could not account for all kinds of experience. Therefore, the last set of experiments were aimed at investigating the effect of central effects such as the role of inhibitory interactions within the antennal lobes (AL) of the bee brain on stimulus generalization. The AL was pharmacologically altered such that inhibition was either enhanced or reduced. Results from these pharmacology experiments suggest that learning and stimulus generalization vary depending on the environmental factors operating on the AL at different times of year.
机译：从（1）感觉系统的局限性到（2）由于生理或基因型局限性引起的中枢神经系统内的变化开始，各种因素都可能影响动物在刺激中的学习和概括方式。例如，几项研究已经确定了蜜蜂嗅觉学习表现中的大量个体间差异。这种可变性可能是由于与年龄相关的内部因素或种姓特定的动机状态改变所致。第一项研究的结果表明，如果不操纵基因型，年龄和种姓都不会影响动机状态或歧视性学习成绩。因此，研究的重点从研究周围神经系统的刺激过程开始，转向了其他控制嗅觉学习的因素。信息素和非信息素香精之间的感官相互作用的心电图（EAG）分析提供了反对这些香精纯标记线编码的证据。因此，针对这些气味剂的广泛的跨纤维编码至少可以部分解释行为现象，例如遮盖，其中如果将受试者训练为含有该气味剂的混合物，则其对气味剂的响应会比将受试者训练为纯净的情况下更低。仅加香剂。 EAG研究的一项重大发现是气味浓度的显着影响。因此，下一组实验集中于气味浓度对行为现象（如刺激泛化）的影响。这项研究的结果表明，由于最近的经验，触角水平的感觉调节可能影响泛化到新浓度的模式。然而，周围神经系统中感觉神经元敏感性的这种改变不能解释所有经验。因此，最后一组实验旨在研究中心效应的作用，例如蜂脑触角（AL）内抑制性相互作用对刺激普遍性的作用。 AL的药理学改变使抑制作用增强或减弱。这些药理实验的结果表明，学习和刺激的普遍性取决于一年中不同时间在AL上操作的环境因素。

著录项

  • 作者

    Bhagavan, Seetha.;

  • 作者单位

    The Ohio State University.;

  • 授予单位 The Ohio State University.;
  • 学科 Biology Neuroscience.; Biology Entomology.
  • 学位 Ph.D.
  • 年度 1996
  • 页码 137 p.
  • 总页数 137
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 神经科学;昆虫学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号