Ultrasonic Sound
Ultrasonic Sound - Related Videos
09:25
Assessment of Ultrasonic Vocalizations During Drug Self-administration in Rats
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Cited by 17 •
2010
Drug self-administration and ultrasonic vocalizations (USV) are used as behavioral assessments in animal research, but rarely in combination. The purpose of this article is to describe the advantages of recording USVs during drug self-administration procedures to assess affective responses to drug experience.
11:00
Targeted Training of Ultrasonic Vocalizations in Aged and Parkinsonian Rats
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Cited by 31 •
2011
Voice disorders are debilitating in aging and Parkinson disease. The ultrasonic vocalizations of rats, also affected by these conditions, can be used to study these voice disorders, their neural substrates, and the nature of functional recovery with behavioral intervention.
08:16
Determining Ultrasonic Vocalization Preferences in Mice using a Two-choice Playback Test
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Cited by 22 •
2015
Ultrasonic vocalizations (USVs) in mice differ depending on age, sex, condition, and genetic background. Using two ultrasound emitters broadcasting simultaneously in different locations, this two-choice test can evaluate murine recognition and preference responses to different characteristics of USVs.
10:28
Recording Mouse Ultrasonic Vocalizations to Evaluate Social Communication
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Cited by 80 •
2016
Mouse ultrasonic vocalizations are used as proxies to model the genetic bases of vocal communication deficits in mouse models for neuropsychiatric disorders. The present protocol describes three experimental contexts that reliably elicit ultrasonic vocalizations from pups (throughout development) and adult mice (same-sex interactions, male-estrus female interactions).
09:12
Sound Waves and Doppler Shift
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2023
Source: Arianna Brown, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA Waves are disturbances that propagate through a material medium or empty space. Light waves can travel through a vacuum and some forms of matter, and are transverse in nature, which means that the oscillations are perpendicular to the direction of propagation. However, sound waves are pressure waves that travel through an elastic medium like air,...
FAQs
Doppler methods use ultrasonic sound to assess motion rather than only structural echoes. In biology, the relevant moving target is blood flow, so the method adds functional information about circulation to structural examination. This distinction makes Doppler especially useful when the biological question concerns movement within tissue or vessels rather than the appearance of stationary structures.
Tissue acoustic properties determine whether the waves are reflected, absorbed, or transmitted. These different interactions influence the signals that return to the detector and therefore affect the information available for biological imaging. Understanding this behavior helps explain why internal structures can produce distinguishable patterns during ultrasound examination.
A piezoelectric transducer generates ultrasonic sound through rapid vibration. Its mechanical motion creates alternating pressure changes that travel through a medium. In biological work, this source provides the waves needed for imaging, motion assessment, therapeutic treatment, or laboratory sonication, depending on the intended use of the system.
An imaging system generates waves with a rapidly vibrating source and directs them through a biological medium. As the waves encounter tissues, some energy returns as echoes while other energy is absorbed or transmitted. The system measures those returning echoes to obtain information about internal biological structures without directly accessing them.
Controlled ultrasound has applications beyond imaging. In biological settings, it can support therapeutic treatments when applied for a treatment purpose, and it can provide laboratory sonication for experimental work. These uses differ from echo-based imaging because the focus is on applying ultrasound to a biological or laboratory process rather than primarily measuring returning signals.
Some animals detect high-frequency sound and use it in natural biological behaviors. Ultrasonic signals can support communication between animals and help with navigation, showing that the biological importance of this sound extends beyond human-made instruments. Studying these functions connects acoustic physics with animal behavior and the sensory systems that detect high-frequency signals.