粗是突出的:一个保存的声音利基,以劫持大脑的突出系统
Luc H Arnal1, Noémi Gonçalves1
1Université Paris Cité, Institut Pasteur, AP-HP, INSERM, CNRS, Fondation Pour l'Audition, Institut de l'Audition, IHU reConnect, Paris 75012, France.
概括
哺乳动物的尖叫声使用非线性声音扭曲来创建粗的声学特征. 这些特征有效地触发接收器中的快速感官,情感和行为反应,这表明对有效的警告信号的进化选择.
科学领域:
- 生物声学是一种生物声学.
- 动物沟通动物沟通
- 进化生物学 进化生物学
背景情况:
- 非参考的发声,如尖叫,在哺乳动物中很常见,用于表达极端的情绪.
- 尖叫涉及非线性语音扭曲,产生暂时模式的声学特征.
- 这些特征可能会触发接收器中的快速行为反应.
研究的目的:
- 调查神经生理学和行为证据,以研究通信中非线性声学现象的适应性特性.
- 探索"粗"声学特征在警告信号中的进化意义.
- 审查塑造粗略发音的因素,作为强大的沟通工具.
主要方法:
- 合成了来自人类和动物研究的融合神经生理和行为证据.
- 分析了非参考语音的声学特性,专注于时间调制.
- 审查了关于对声信号的感知,行为和神经反应的文献.
主要成果:
- 非线性声乐现象产生声学特征,非常适合引起有效的感官,情感和行为反应.
- 尖叫中的快速时间"粗"调制可能是进化选择的结果,而不是声乐生产的工件.
- 这些粗的特征可能会激活古老的感觉路径,促进最佳的接收器反应.
结论:
- 发声中的粗声学特征是有效沟通的进化保存的特征.
- 这些特征增强了警告信号的突出性和影响,确保了接收器的快速响应.
- 了解这些非线性现象,可以了解强大的动物通信系统的演变.
相关概念视频
Nonconscious Mimicry
3.6K
Nonconscious mimicry occurs when individuals alter their mannerisms to match the behaviors and expressions of those nearby, without intention.
3.6K
Functional Brain Systems: Reticular Formation
5.6K
The reticular formation is a complex network of gray and white matter located within the brainstem extending from the medulla to the midbrain.
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
Within the reticular formation, there are several distinct nuclei that can be classified into three broad categories. The Raphe nuclei are located along the midline of the brainstem. They are primarily known for their role in synthesizing and releasing serotonin, a neurotransmitter involved in regulating mood, appetite, sleep, and circadian rhythms. The...
5.6K
Auditory Pathway
7.1K
Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
7.1K
Neuroplasticity
2.6K
Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
2.6K
Auditory Perception
1.5K
The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
1.5K
Perceiving Loudness, Pitch, and Location
1.3K
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
1.3K


