Novelty Detection in Electric Fish

电鱼的新颖性检测

基本信息

  • 批准号:
    8810571
  • 负责人:
  • 金额:
    $ 17.49万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    1989
  • 资助国家:
    美国
  • 起止时间:
    1989-01-01 至 1992-06-30
  • 项目状态:
    已结题

项目摘要

There are three general classes of behavioral responses to a novel stimulus: startle, arousal and orientation. The startle response is a short latency set of muscular contractions induced by a brief stimulus, typically visual or acoustic. It is characteristic for the startle threshold to be much greater than the animal's detection threshold. Arousal behavior is characterized by a suite of physical responses. Although more subtle than startle behavior, both the effective stimuli and the responses are quite general with arousal, making investigation of the individual neural elements involved in novelty detection problematic. Although orienting responses have not been well defined in fish, the novelty response of pulse-type weakly electric fish fits best into this category as defined for mammals. The novelty response is a transient acceleration of the pacemaker which drives the fish's electric organ. Elicited by small stimulus changes near detection threshold, it is a subtle but reliable behavior which is not explosive, has a short refractory period, and involves a single effector pathway. The novelty response of pulse-type weakly electric fish is well suited to neurophysiological analysis and permits simultaneous measurement of behavioral and neural responses. Dr. Randy Zelick will continue his work on novelty detection in electric fish. This work is significant since it will give us a better understanding of the means by which the nervous system distinguishes novel from background sensory input. //
有三个一般类的行为反应, 新刺激:惊吓、唤醒和定向。 惊吓 反应是一组短潜伏期的肌肉收缩诱导 通过短暂的刺激,通常是视觉或听觉。 是 惊吓阈值的特征要比 动物的检测阈值。 唤醒行为是 以一系列身体反应为特征。 尽管更多 无论是有效的刺激还是令人震惊的行为, 反应是相当普遍的唤醒,使调查 参与新奇检测的单个神经元 有问题 虽然定向反应并不好 定义在鱼类,新奇反应的脉冲型弱 电鱼最适合这一类定义为 哺乳动物 新奇的反应是一个短暂的加速, 驱动鱼的电器官的起搏器。 诱发 小刺激变化接近检测阈值,这是一个微妙的 但可靠的行为,不是爆炸性的, 不应期,并涉及单一效应途径。 的 脉冲式弱电鱼新奇反应良好 适合神经生理学分析,并允许同时 行为和神经反应的测量。 兰迪医生 Zelick将继续他在电动汽车领域的新奇检测工作 鱼. 这项工作意义重大,因为它将使我们更好地 了解神经系统 区分小说和背景感觉输入。 //

项目成果

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Randy Zelick其他文献

Characterization of the advertisement call oscillator in the frogEleutherodactylus coqui

Randy Zelick的其他文献

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{{ truncateString('Randy Zelick', 18)}}的其他基金

EAGER: Acoustic Differentiation of Northern Red-legged Frog Populations
EAGER:北方红腿蛙种群的声学分化
  • 批准号:
    1449319
  • 财政年份:
    2014
  • 资助金额:
    $ 17.49万
  • 项目类别:
    Standard Grant

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