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Showing 1 to 16 of 16 for “"ultrasonic vocalizations"”.
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The Physics of Rodent Ultrasonic Vocalizations
… much work has been done on the physics of vocalizations caused by the vibrating motion of vocal folds, relatively little work has been done on the physics of ultrasonic vocalizations (USVs). There are two orders of mammals known to make these kind of vocalizations: cetaceans and rodents. Of …
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Interactions between the cholinergic and dopaminergic system during the production of ultrasonic vocalizations in rats
Rats produce ultrasonic vocalizations that can be categorized into two types of ultrasonic calls based on their sonographic structure. One group contains 22-kHz ultrasonic vocalization (USVs), characterized by relatively constant (flat) frequency with peak frequency ranging from 19 to 28-kHz, and a …
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Investigation of the role of the nucleus accumbens in amphetamine-induced 50 kHz ultrasonic vocalizations in the rat
… system underlies the production of 50 kHz ultrasonic vocalizations in rats. In particular, the shell of the nucleus accumbens is associated with generation of frequency modulated 50 kHz calls (a specific type of 50 kHz call which can be subdivided into various subtypes). There is also …
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50-kHz ultrasonic vocalizations in hemiparkinsonian rats repeatedly treated with dopaminomimetic drugs as a possible behavioral marker of the affective properties of dopamine-replacing therapy in Parkinson's disease
… this study evaluated the emission of 50-kHz ultrasonic vocalizations (USVs), a behavioral marker of positive affect, in rats bearing a unilateral lesion with 6-hydroxydopamine (6-OHDA) in the medial forebrain bundle. Apomorphine (2 or 4 mg/kg, i.p.), L-3,4-dihydroxyphenilalanine (L-DOPA, 6 or …
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INTRACRANIAL INFUSIONS OF NEUROTENSIN AGONISTS PRODUCE AN ANXIOLYTIC PROFILE IN A RAT ULTRASONIC VOCALIZATION MODEL
… can attenuate the number of fear-induced 22-kHz ultrasonic vocalizations (USVs) produced by male Wistar rats. A reduction in the number of 22-kHz USV calls is indicative of an anxiolytic effect. The current study used a USV model to evaluate the effects of PD149163 (0.1, 1.0, and 10.0 ng) and …
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Experience dependent coding of intonations by offsets in mouse auditory cortex
… mammalian species. The encoding of intra-species vocalizations and plasticity mechanisms engaged during the process of learning vocalizations are poorly understood. This is particularly true with regards to how sensory representations of vocalizations is transformed between primary to secondary …
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Phenotypic And Electrophysiologic Characterization of a Mouse Model of Fragile X Syndrome
… term fluid licking observations, measurements of ultrasonic vocalizations (USV), and 3D tracking of whisker movements to test Fmr1 KO mice for behavioral deficits compared to their Wild type (WT) littermates. Electrophysiological techniques were employed to evaluate the functional properties of …
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An integrative analysis of the multi- and transgenerational effects of endocrine-disrupting chemicals on behavior and neurobiology
… levels, number and acoustic properties of ultrasonic vocalizations (USVs) and male sexual behavior. To determine if EDCs affected the underlying neuromolecular phenotype of these F2 males, we assessed the expression of candidate genes in the medial preoptic area (POA) and ventromedial …
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Behavioural, Pharmacological, and Immunohistochemical Investigation of 50 kHz USVs as an Expression of Positive Emotional Arousal in the Long Evans Rat
The emission of ultrasonic vocalizations (USVs) in Rattus norvegicus is thought to effectively represent an underlying emotional state within the organism manifested at the behavioural level. The main goal of my thesis was to characterize, at multiple levels of analysis, the 50 kHz USVs of the …
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Influence of Mouse Motor Cortex on Vocal Musculature
… thus have a high degree of control over their vocalizations. Vocal learning species have a direct projection from the pallial forebrain to the brainstem vocal motor neurons, which facilitate their vocal dexterity. Songbirds have been the standard model of vocal learning, but there are technical …
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ONTOGENY AND NEURAL MECHANISMS OF VOCAL COMMUNICATION IN MUS MUSCULUS
Innate vocalizations play a critical communicative role for both human and non-human animals. Infants of altricial species vocalize when hungry, cold, or isolated from caregivers and their nest environment. These ‘infant vocalizations’ are crucial for the survival of altricial infants, including …
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Interrogation of the neural mechanisms by which male and female rats assess aversive and mixed valence stimuli in learning and performing a task
… versus aversion in male and female rats. We used ultrasonic vocalizations (USVs) as a means of assessing affective valence. We found striking sex differences in this behavior. Males produced 55 kHz USVs, associated with a positive emotional valence, when anticipating a reward, and inhibited these …
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Ultrasonic Communication and the Hormonal Modulation of Aggressive Behavior in the Female Hamster
… here show that hamsters of both sexes emit ultrasonic calls of 16-64 kHz and roughly 50 dB SPL. Ultrasounds by females encode information regarding reproductive state as well as location. In particular, female call rates are highest during estrus, suggesting that these signals function …
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INVESTIGATIONS INTO THE STEREOCHEMICAL AND GLUTAMATERGIC MECHANISMS OF THE "BATH SALTS" SYNTHETIC CATHINONES MEPHEDRONE AND MDPV IN RATS
… daily 2 hours sessions for 14 days, during which ultrasonic vocalizations (USVs) were recorded. Following acquisition of MDPV self-administration, rats were pretreated daily with either saline, CEF (200 mg/kg) or NAcetyl (100 mg/kg) 30 minutes prior to extinction procedures for 10 days. One day …