Analysis of 22 kHz ultrasonic vocalization in laboratory rats: Long and short calls

Brudzyński, Stefan M.; Bihari, Frank; Ociepa, Dorota; Fu, Xiao-wen

doi:10.1016/0031-9384(93)90102-l

Cited by 134 publications

(106 citation statements)

References 20 publications

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“…These multiple signals, which could be studied using game theory models, may allow for more accurate assessment of a single sign by the receiver (so called 'backup signal' hypothesis), or they may represent a multiple sign communication ('multiple message' hypothesis) consistent with the polysemic function of the signals (Johnstone, 1996). For example, some features of 22 kHz calls emitted as pairs of long and short calls (Brudzynski et al, 1993a) could represent such a multiple ''message''. Rat communication also seems probabilistic rather than deterministic.…”

Section: Semiotic Sign Functionmentioning

confidence: 99%

“…Rats emitted fewer long calls (more than 1000 ms in duration) and more short calls (shorter than 150-200 ms). It is hypothesized that the 22-kHz calls may not be a homogenous group of calls (Brudzynski et al, 1993a) or that endogenous acetylcholine, which initiates the response, may not code the quantitative aspect of the sign function.…”

Section: Parameters Of Adult 22-khz Alarm Callsmentioning

confidence: 99%

“…Recent studies indicate that the number of calls shorter than 300 ms is smaller, relative to the longer calls, because of fragmentation of some of the long calls in the automated counting method. The figure (modified) is taken from Brudzynski et al, (1993a). expresses the important quantitative dimension is also very likely since call bandwidth is narrow and non-variable in this type of short call.…”

Section: Parameters Of Adult 50 Khz Callsmentioning

confidence: 99%

“…By far the biggest variability in this type of call is in duration (Fig. 3, Brudzynski et al, 1993a). The shortest and the longest calls differed by more than 195-times (20 ms versus 3940 ms).…”

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: Semiotic Sign Functionmentioning

confidence: 99%

Section: Parameters Of Adult 22-khz Alarm Callsmentioning

confidence: 99%

Section: Parameters Of Adult 50 Khz 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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“…USV conditional stimuli were 10 sec continuous segments of so-called "22 kHz USVs." These frequency-modulated (FM) social signals occur in a narrow bandwidth (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30) and consist of a string of "long calls" (each Ͼ200 msec) (van der Poel and Miczek, 1991;Brudzynski and Barnabi, 1993;Choi and Brown, 2003). Rats communicate extensively through USVs in two frequency bands: 20 -30 and 40 -70 kHz (Sewell, 1970;Sales and Pye, 1975).…”

Section: Introductionmentioning

confidence: 99%

Perirhinal Cortex Supports Delay Fear Conditioning to Rat Ultrasonic Social Signals

Lindquist¹,

Jarrard²,

Brown³

2004

J. Neurosci.

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Auditory information can reach the lateral nucleus of the amygdala (LA) through a monosynaptic thalamic projection or a polysynaptic cortical route. The polymodal input from the perirhinal cortex (PR) is a major informational gateway to the LA and nearby structures. Pretraining PR lesions impair fear conditioning to a context, but there have been no reports that they cause deficits in delay conditioning to an auditory cue. The direct subcortical projection to the LA seems sufficient to support delay conditioning to a tone conditional stimulus (CS). We examined the effect of PR lesions on delay conditioning to two different tone conditional stimuli (4 and 22 kHz tones; both 10 sec duration) and two different rat ultrasonic vocalization (USV) conditional stimuli (10 sec of "22 kHz USVs"). The two USV conditional stimuli were multi-call segments that were recorded (digitized at 100 kHz) from two different rats. One USV CS was a continuous sequence of eight calls, and the other was a portion of a continuous sequence of six calls. PR lesions significantly impaired conditioning to both USV conditional stimuli and to the training context but had no significant effect on conditioning to either tone CS. The role of PR in fear conditioning appears not to be determined by whether the conditional stimuli serve as contexts or cues, but instead by the nature or complexity of the stimuli or stimulus configurations. These cue-specific effects of PR lesions are suggested to reflect differences in the stimulus features that are encoded in the two CS pathways to the LA.

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The effect of cholinergic stimulation on rat pup ultrasonic vocalizations

et al. 2001

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Analysis of 22 kHz ultrasonic vocalization in laboratory rats: Long and short calls

Cited by 134 publications

References 20 publications

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

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

Perirhinal Cortex Supports Delay Fear Conditioning to Rat Ultrasonic Social Signals

The effect of cholinergic stimulation on rat pup ultrasonic vocalizations

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