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4 edition of effects of quinpirole in eliciting 50 kHz calls from the rat nucleus accumbens found in the catalog.

effects of quinpirole in eliciting 50 kHz calls from the rat nucleus accumbens

by Joel St. Pierre

  • 113 Want to read
  • 4 Currently reading

Published by Brock University, Dept. of Psychology in St. Catharines, Ont .
Written in English

    Subjects:
  • Dopaminergic mechanisms.,
  • Sound production by animals.,
  • Dopamine.

  • Edition Notes

    Statementby Joel St. Pierre.
    The Physical Object
    Pagination75 leaves :
    Number of Pages75
    ID Numbers
    Open LibraryOL23358456M

    In rats exploring a symmetrical Y-maze, an acute injection of quinpirole or intermittent brief footshocks did not change the level of locomotion. The combined treatment of quinpirole and footshocks elicited an immediate locomotor stimulation. When the experimental session was repeated daily, there was a further increase of hyperlocomotion (i.e. sensitization). Rats Selectively Bred for Low Levels of 50 kHz Ultrasonic Vocalizations Exhibit Alterations in Early Social Motivation K.M. Harmon1 H.C. Cromwell1 J. Burgdorf2 J.R. Moskal2 S.M. Brudzynski3 R.A. Kroes2 J. Panksepp1,2,4 1Department of Psychology and J.P. Scott Center for Neuroscience.

    FM 50 khz USVs are uniquely elevated by hedonic stimuli and suppressed by aversive stimuli. rates of FM 50 khz USVs are positively correlated to the rewarding value of the eliciting stimulus. playbacks of these vocalizations are also rewarding. the neural and pharmacological substrates of 50 khz USVs are consistent with those of human posi-.   MCQ in Microwave Communications Part 1 | ECE Board Exam About Pinoybix is an engineering education website maintained and designed toward helping engineering students achieved their ultimate goal to become a full-pledged engineers very soon.

    Dopaminergic drugs also affect rat maternal behaviour. Chronic and acute haloperidol disrupted pup retrieval and nest building (Li et al. , ). Pre‐treatment with the D2/D3R agonist quinpirole reversed these deficits (Zhao & Li ), and the NAc may be the site of drug action (Miller & Lonstein ; Zhao & Li ).Cited by: The nucleus accumbens is divided into core and shell sub‐regions with overlapping but also divergent contributions to behavior. Although both regions receive innervation from dopamine neurons in the ventral tegmental area, the dopamine signaling profiles vary, suggesting differential regulation of terminal fields.


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Effects of quinpirole in eliciting 50 kHz calls from the rat nucleus accumbens by Joel St. Pierre Download PDF EPUB FB2

Allin|ilsaline)rolesuccessfiilly elicited significantly more 50 kHz calls thandidasalinecontrol at the 6 |j,g dose,asdid7 fig/ (il of d-amphetamine injections into the same brain site. The effects of quinpirole in eliciting 50 kHz calls from the rat nucleus accumbens / View/ Open.

_Joel_pdf (Mb) Date Author. Single injections of quinpirole in a saline vehicle were administered to the nucleus accumbens shell of 57 rats, and the number of 50 kHz vocalizations were recorded. An inverted V-shaped relationship was found between quinpirole dose ( ~g, 3 ~g, 6 ~g, 1 0 ~g and 20 ~g, all in ~1 saline) and the mean number of 50 kHz calls : Joel.

Pierre. Specifically, manipulations of dopamine with drugs such as amphetam 43, 48, 76, 77, cocaine [78, 79], apomorphine, and methylphenidate result in an increase in the quantity of kHz USVs. Likewise, agonizing or antagonizing dopaminergic receptors affects both the quantity and quality of kHz vocalizations [].Cited by: Effects of direct injections of amphetamine into the shell of the nucleus accumbens were studied in three lines of Long-Evans rats, two of which had been selected for low and high rates of 50 kHz.

Injections of amphetamine into the nucleus accumbens induced species-typical 50 kHz calls in adult rats. The acoustic parameters of the calls were not affected by different amphetamine doses or. Quinpirole-induced 50 kHz ultrasonic vocalization in the rat: role of D2 and D3 dopamine receptors Amphetamine-induced 50 kHz calls from rat nucleus accumbens: a quantitative mapping study and acoustic analysis Identification of multiple call categories within the rich repertoire of adult rat kHz ultrasonic vocalizations: effects of Cited by:   These features, and particularly low levels of pro-social 50 kHz calls, increased levels of aversive, anxiety-based 22 kHz calls, low motor and locomotor activity strongly suggest that the low line rats exhibited features of social withdrawal and decreased social contacts, which can be used to model depression [ 66 ].Cited by: The effects of Quinpirole on eliciting 50 kHz calls from the fat nucleus accumbens: Thomson, Kendra: Mondloch: LD: Sensitivity to differences between posed & genuine facial expressions: Are children easily fooled.

Worth, Narnia: Book: SP: Psychopathy and self-monitoring: Additive & interactive effects on self-presentation tactics. Animals were implanted with bipolar electrodes into the ventral tegmental area (n = 4), nucleus accumbens (n = 3), or bed nucleus of the stria terminalis (n = 1) and were shown to have reliable and repeatable electrical brain stimulation induced kHz USVs.

The optimal current threshold for eliciting kHz USVs was determined for each animal using 60 Hz sine wave by: Sullivan et al () Effects of quinpirole on central DA systems in sensitized and non-sensitized rats.

Neuroscience 83 PMID: If you know of a relevant reference for (-)-Quinpirole hydrochloride, please let us know.5/5(2). Willuhn et al., demonstrated that peak frequency, the frequency at which the most intense part of the call is emitted, is particularly correlated to eliciting phasic dopamine release from the nucleus accumbens, which demonstrates the affective nature of kHz USVs in by: Typically, the different kHz USV subtypes are clustered into flat (FLAT) and frequency-modulated (FM) calls, with the latter consisting of kHz USV characterized by one or more steps/jumps in frequency, so called frequency step calls, trills, i.e.

zigzag-shaped calls, and mixed calls (Fig. 1 1; e.g. []), yet more complex classification Cited by: Background References. Modulation of [3 H]quinpirole binding in brain by monoamine oxidase inhibitors: evidence for a potential novel binding et al.; DA receptor pharmacology.

Seeman and Van Tol Trends; ; Effects of quinpirole on central DA systems in sensitized and non-sensitized rats.5/5(2).

Quinpirole is a dopamine agonist with high affinity for the D 2 and D 3 dopamine receptor subtypes. Specific [3 H]quinpirole binding in rat brain was saturable, and dependent on [3 H]spiperone binding sites, with greatest densities present in the striatum, nucleus accumbens and olfactory tubercles.

A variety of drugs, most notably monoamine. Rats were the first mammalian species domesticated for scientific purposes, and they soon became the most widely used animal model in biomedical sciences, including cardiovascular research and behavioral neuroscience.

Yet, after the development of technologies to manipulate genes, researchers largely shifted to the use of mice. However, as we lay out with examples from drug addiction, social Cited by:   Dopamine receptor activation in the nucleus accumbens (NAc) promotes vigorous environmentally-cued food-seeking in hungry rats.

Rats fed ad libitum, however, respond to fewer food-predictive cues, particularly when the value of food reward is low. Here, we investigated whether this difference could be due to differences in the degree of dopamine receptor activation in the by: 8.

Seminal work on animals’ responses to psychostimulants performed by Burgdorf and colleagues demonstrated that kHz USVs can be evoked via intracranial injections of amphetamine into the nucleus accumbens (NAcc) core and shell subregions.

In line with previous studies on the effects of stimulants, the rate of elicited vocalizations followed Cited by: After 40 min, checking resurfaced, as quinpirole rats exited the home-cage often. An unfamiliar cage had no such effects on quinpirole rats or saline controls. Conclusions: Checking behavior induced by quinpirole is not irrepressible but can be suspended.

Results strengthen the quinpirole preparation as an animal model of OCD compulsive by: Wright JM, Gourdon JC, Clarke PB () Identification of multiple call categories within the rich repertoire of adult rat kHz ultrasonic vocalizations: effects of amphetamine and social context. Psychopharmacology.

Panels, Mini-Panels and Study Groups. such as the nucleus accumbens and the ventral tegmental area. We used a rat model of alcohol dependence to identify epigenetic enzyme expression.

Poster Session II. Tuesday, December 6, PM – PM of CRF on dopamine transmission in the nucleus accumbens of mice. Subjective effects of intrathecal administration of CRF into.Dopamine agonists, such as amphetamine, apomorphine, or quinpirole, induce characteristic motor responses in rodents, which have been reviewed extensively by others.The amphetamine-induced hyperlocomotor response is elicited, at least in part, by increased dopaminergic activity in the mesolimbic pathway, particularly in the nucleus accumbens and olfactory tubercle.

– Given that hyperactivity .