Ultrasonic vocalization of laboratory rats in response to handling and touch

Brudzyński, Stefan M.; Ociepa, Dorota

doi:10.1016/0031-9384(92)90393-g

Cited by 164 publications

(112 citation statements)

References 21 publications

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“…The 22-kHz alarm calls of adult rats are within a frequency range of 18-32 kHz (Blanchard et al, 1992;Brudzynski and Ociepa, 1992;Brudzynski, 2001;Miczek et al, 1991;Nyby and Whitney, 1978;Sales, 1979;Van der Poel and Miczek, 1991), with a Fig. 2.…”

Section: Parameters Of Adult 22-khz Alarm Callsmentioning

confidence: 99%

“…Forced expiration through the small opening produces a whistle-like call (Weisz, et al, 2001). For calls characterized by prolonged exhalations, a build-up of a significant abdominal pressure occurs, the expiratory air flow decreases, and the animal's head is lowered and protruded forward during the call (Brudzynski and Ociepa, 1992;Roberts, 1972). This response is centrally controlled, complex and integrated.…”

Section: Communication Of Rats By Means Of Ultrasonic Callsmentioning

confidence: 99%

“…The data originate from results contained in the study by Brudzynski, Kehoe and Callahan, (1999). narrow bandwidth of 1-6 kHz and long call duration of approximately 300-3400 ms (Barfield and Geyer, 1975;Brudzynski et al, 1993;Brudzynski and Ociepa, 1992;Brudzynski, 2001;Miczek et al, 1991;Sales, 1979). These acoustic features are observed in behavioral situations associated with danger, threat, or distress.…”

Section: Parameters Of Adult 22-khz Alarm Callsmentioning

confidence: 99%

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Principles of Rat Communication: Quantitative Parameters of Ultrasonic Calls in Rats

2005

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Ultrasonic calls used by rats during intraspecies communication have acoustic features, which can be selectively recognized by recipients, and possess a quantitative dimension reflecting the magnitude of the sender's response. This paper reviews basic principles of animal communication with particular attention to rat calls, and the features of ultrasonic calls, which could reflect such a quantitative aspect. Isolation calls of rat pups vary in frequency and duration and have changing sonographic structure over time. It is hypothesized that the quantitative ''message'' for the dam is encoded not only in the number of calls but also in frequency sweeps. The 22-kHz alarm calls of adults are characterized by a relatively constant sound frequency, marginal frequency modulation, and remarkable variability in call duration. It is hypothesized that quantitative aspect of these calls may be encoded in call length. Finally, the 50-kHz calls of adults, which are emitted in appetitive behavior are very short calls, with a relatively constant call duration, and a variable sound frequency. It is hypothesized that the peak frequency as well as the number of calls per time unit reflect the quantitative aspect in 50-kHz calls.

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Section: Parameters Of Adult 22-khz Alarm Callsmentioning

confidence: 99%

Section: Communication Of Rats By Means Of Ultrasonic Callsmentioning

confidence: 99%

Section: Parameters Of Adult 22-khz Alarm Callsmentioning

confidence: 99%

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Principles of Rat Communication: Quantitative Parameters of Ultrasonic Calls in Rats

2005

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“…As a result, 22-kilohertz USVs have been suggested as a measure of affective shifts in rats [20,57] and used in a variety of conditioned and unconditioned models of anxiety [58][59][60]. Sonic vocalization occurs in rats as part of a defensive threat response to an oncoming predator [16]; though less prominent in laboratory rats, it can be elicited by rough handling [28], leading to the suggestion that these audible vocalizations (including the 22 kHz) may play an adaptive role in increasing chances of survival by serving as indicators of alarm. A study by Brudzynski and Ociepa [28] demonstrated that even a very light touch by the human hand, especially on certain areas of the rat's body, can evoke repeatable ultrasonic vocalizations in the 22 KHz range comparable to those reported in other situations.…”

Section: Discussionmentioning

confidence: 99%

“…Three classes of ultrasonic vocalizations (USVs) (inaudible to humans, >20 kHz) and one sonic vocalization (audible to humans, <20 kHz) have been described in laboratory rats [16,17]. When isolated from the dam, pup rats emit vocalizations that can reach a peak frequency of 40 kHz [18], whereas adult rats emit two distinct USVs: one at 50 kHz that tends to be produced in non-aggressive conspecific social interactions [19], during play [20] and in the male's ejaculatory period [21], and the other at 22 kHz that includes cries emitted during post-ejaculation [22,23], in intraspecific defensive/submissive postures as part of inter-male social interaction [24][25][26], and upon exposure to a predator [27] or physical distress [28].…”

Section: Introductionmentioning

confidence: 99%

Prefrontal and Accumbal Electric Activity during Auditory Stimulation in Virgin Female Rats: Changes Related to the Estrous Cycle

Hernández‐González¹,

Abascal²,

Guevara³

et al. 2013

JBBS

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The estrous cycle is a physiological process modulated by hormonal changes associated, in turn, with alterations of the attraction or sensitivity with which females perceive different sensory stimuli. Auditory stimuli play an important role in the social interaction of several mammals, including their sexual behavior and the mother-young relationship. Since the prefrontal cortex (PFC) and nucleus accumbens (Acc) had been associated with the processing and assignation of the incentive value of stimuli, this study was designed to analyze whether electroencephalographic (EEG) activity in the PFC and Acc was modified during the two antagonist phases of the estrous cycle (proestrus-estrus and diestrus) when female rats heard sound recordings with different types of cries emitted by other rats. EEGs were recorded in eight female virgin Wistar rats, 80 -100 days old, bilaterally implanted in the PFC and Acc during an awake-quiet state, in three conditions: when hearing 1) cries of pups; 2) cries of adult male rats; and, 3) cries of adult female rats. The cries were recorded from pups (2 -10 days old) and male and female adult rats after gentle prodding by a human hand. Each auditory stimulus (which included vocalizations up to 22 kHz) was randomly played back through a speaker placed near the female rats. Only upon perceiving the cries of male rats did the females in the proestrus-estrous phase show a lower relative power in the 14 -30 Hz band in the Acc and an increased inter-prefrontal correlation in the 8 -13 Hz band. It is probable that these EEG changes are associated with the lower activation or non-anxious state that the female rat presents specifically during the proestrus-estrous phase in response to the alarm cries of adult male rats.

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Brief introduction to welfare assessment: a ‘toolbox’ of techniques

Lofgren

2024

The UFAW Handbook on the Care and Management of Laboratory and Other Research Animals

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Ultrasonic vocalization of laboratory rats in response to handling and touch

Cited by 164 publications

References 21 publications

Principles of Rat Communication: Quantitative Parameters of Ultrasonic Calls in Rats

Principles of Rat Communication: Quantitative Parameters of Ultrasonic Calls in Rats

Prefrontal and Accumbal Electric Activity during Auditory Stimulation in Virgin Female Rats: Changes Related to the Estrous Cycle

Brief introduction to welfare assessment: a ‘toolbox’ of techniques

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