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https://www.readbyqxmd.com/read/28219765/maternal-dipyrone-treatment-during-lactation-in-mice-reduces-maternal-behavior-and-increases-anxiety-like-behavior-in-offspring
#1
Vanessa Barbosa Veronesi, Tatiane Helena Batista, Ana Cláudia Alves Freire Ribeiro, Alexandre Giusti-Paiva, Fabiana Cardoso Vilela
Dipyrone (metamizole), a powerful drug, is widely used as an analgesic and antipyretic; however, the safety of its use during lactation and the potential impact on the offspring are not well established. This study aimed to determine the effect of maternal dipyrone treatment during lactation on offspring development and emotional behavior and on the dam's maternal behavior. Hence, on postnatal day (PND) 2, drinking water only or drinking water containing dipyrone at doses of 100, 300, and 500mg/kg/day, were offered to lactating mothers up to PND9...
February 17, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28212947/affective-valence-of-neurons-in-the-vicinity-of-the-rat-amygdala-single-unit-activity-in-response-to-a-conditioned-behavior-and-vocal-sound-playback
#2
Hiroko Kagawa, Yoshimasa Seki, Kazuo Okanoya
We recorded single unit activity within and around the rat amygdala while rats were engaged in an operant task (which included both reward and aversive trials) and during playback of ultrasonic vocalizations (USVs) to determine if there existed neurons which responded to two different types of either positive contexts (i.e., water reward and positively associated 50kHz vocalizations) or negative contexts (i.e., white noise and negatively associated 22kHz vocalizations). Ultimately, we wanted to determine if these two contexts (operant condition task and vocal sounds) could be represented as either positive or negative in a single neuron...
February 14, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28197554/does-size-really-matter-the-role-of-tonotopic-map-area-dynamics-for-sound-learning-in-mouse-auditory-cortex
#3
Hans Sperup Brünner, Rune Rasmussen
This commentary centers on the novel findings by Shepard et al. (2016) published in eNeuro. The authors interrogated tonotopic map dynamics in auditory cortex (ACtx) by employing a natural sound-learning paradigm, where mothers learn the importance of pup ultrasonic vocalizations (USVs), allowing Shepard et al. to probe the role of map area expansion for auditory learning. They demonstrate that auditory learning in this paradigm does not rely on map expansion but is facilitated by increased inhibition of neurons tuned to low-frequency sounds...
January 2017: ENeuro
https://www.readbyqxmd.com/read/28165369/performance-enhancement-of-a-usv-ins-cns-dvl-integration-navigation-system-based-on-an-adaptive-information-sharing-factor-federated-filter
#4
Qiuying Wang, Xufei Cui, Yibing Li, Fang Ye
To improve the ability of autonomous navigation for Unmanned Surface Vehicles (USVs), multi-sensor integrated navigation based on Inertial Navigation System (INS), Celestial Navigation System (CNS) and Doppler Velocity Log (DVL) is proposed. The CNS position and the DVL velocity are introduced as the reference information to correct the INS divergence error. The autonomy of the integrated system based on INS/CNS/DVL is much better compared with the integration based on INS/GNSS alone. However, the accuracy of DVL velocity and CNS position are decreased by the measurement noise of DVL and bad weather, respectively...
February 3, 2017: Sensors
https://www.readbyqxmd.com/read/28135884/intranasal-administration-of-dopamine-attenuates-unconditioned-fear-in-that-it-reduces-restraint-induced-ultrasound-vocalizations-and-escape-from-bright-light
#5
Teddy Talbot, Claudia Mattern, Maria Angelica de Souza Silva, Marcus Lira Brandão
BACKGROUND: Although substantial evidence suggests that dopamine (DA) enhances conditioned fear responses, few studies have examined the role of DA in unconditioned fear states. Whereas DA does not cross the blood-brain barrier, intranasally-applied dopamine reaches the brain directly via the nose-brain pathways in rodents, providing an alternative means of targeting DA receptors. Intranasal dopamine (IN-DA) has been demonstrated to bind to DA transporters and to increase extracellular DA in the striatum as well as having memory-promoting effects in rats...
January 1, 2017: Journal of Psychopharmacology
https://www.readbyqxmd.com/read/28119084/effects-of-amphetamine-on-pro-social-ultrasonic-communication-in-juvenile-rats-implications-for-mania-models
#6
K-Alexander Engelhardt, Eberhard Fuchs, Rainer K W Schwarting, Markus Wöhr
Communication is the act of information transfer between sender and receiver. In rats, vocal communication can be studied through ultrasonic vocalizations (USV). 50-kHz USV occur in appetitive situations, most notably juvenile play, likely expressing the sender׳s positive affective state. Such appetitive 50-kHz USV serve important pro-social communicative functions and elicit social exploratory and approach behavior in the receiver. Emission of 50-kHz USV can be induced pharmacologically by the administration of psychostimulant drugs, such as amphetamine...
January 21, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28118495/negative-affect-associated-usv-acoustic-characteristics-predict-future-excessive-alcohol-drinking-and-alcohol-avoidance-in-male-p-and-np-rats
#7
J M Reno, N Thakore, L K Cormack, T Schallert, R L Bell, W T Maddox, C L Duvauchelle
BACKGROUND: Negative emotional status and adverse emotional events increase vulnerability to alcohol abuse. Ultrasonic vocalizations (USVs) emitted by rats are a well-established model of emotional status that can reflect positive or negative affective responses in real-time. Most USV studies assess counts, yet each USV is a multidimensional data point characterized by several acoustic characteristics that may provide insight into the neurocircuitry underlying emotional response. METHODS: USVs emitted from selectively bred alcohol-naïve and alcohol-experienced alcohol-preferring and non-preferring rats (P and NP rats) were recorded during 4-hr sessions on alternating days over 4 weeks...
January 24, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28089664/neurotensin-nts1-and-nts2-receptor-agonists-produce-anxiolytic-like-effects-in-the-22-khz-ultrasonic-vocalization-model-in-rats
#8
Floyd F Steele, Shannon C Whitehouse, Jacob S Aday, Adam J Prus
Neurotensin is a neuropeptide neurotransmitter that interacts with multiple neurotransmitter systems, including those regulating amygdalar function, via NTS1 and NTS2 receptors. Both receptors are expressed in the amygdala and agonists for NTS1 or NTS2 receptors have exhibited anxiolytic effects in animal models. Systemic adminstration of NTS1 receptor agonist PD149163 was recently shown to reduce footshock conditioned 22-kHz ultrasonic vocalizations in rats, suggesting that PD149163 produced an anxiolytic effect...
January 12, 2017: Brain Research
https://www.readbyqxmd.com/read/28056078/early-life-social-isolation-influences-mouse-ultrasonic-vocalizations-during-male-male-social-encounters
#9
Sarah M Keesom, Caitlyn J Finton, Gabrielle L Sell, Laura M Hurley
Early-life social isolation has profound effects on adult social competence. This is often expressed as increased aggression or inappropriate displays of courtship-related behaviors. The social incompetence exhibited by isolated animals could be in part due to an altered ability to participate in communicatory exchanges. House mice (Mus musculus) present an excellent model for exploring this idea, because social isolation has a well-established influence on their social behavior, and mice engage in communication via multiple sensory modalities...
2017: PloS One
https://www.readbyqxmd.com/read/28054809/differential-patterns-of-constant-frequency-50-and-22-khz-usv-production-are-related-to-intensity-of-negative-affective-state
#10
James O Taylor, Catherine M Urbano, Brenton G Cooper
Adult rat ultrasonic vocalizations (USVs) are a valuable tool for noninvasively assessing an animal's emotional state. USVs are produced in 1 of 2 frequency ranges labeled as 22 kHz or 50 kHz vocalizations. One USV subtype within the 50 kHz call category, constant frequency 50 kHz (CF 50 kHz) calls, is not viewed as signaling an emotional state. The current study tested the hypothesis that CF 50 kHz calls are related to a mild negative affective state. In Experiment 1, diazepam (1, 2.5, or 5 mg/kg), or control injections were administered prior to receiving a sequence of mild footshocks (0...
February 2017: Behavioral Neuroscience
https://www.readbyqxmd.com/read/27989747/chronic-postnatal-monoamine-oxidase-inhibition-affects-affiliative-behavior-in-rat-pupso
#11
Sofia Blazevic, Mirna Merkler, Dora Persic, Dubravka Hranilovic
Monoamine neurotransmitters serotonin (5-HT), dopamine (DA), and noradrenaline (NA) act as important modulators of mammalian brain development and represent neurobiological substrates of affiliative behavior reflected in rat pups as a tendency to huddle or produce ultrasonic vocalizations (USV) when separated from the nest. Monoamines are metabolized through oxidative deamination catalyzed by the mitochondrial enzyme monoamine oxidase (MAO). In this study, we examined the consequences of postnatal MAO inhibition on affiliative behavior in rat pups...
February 2017: Pharmacology, Biochemistry, and Behavior
https://www.readbyqxmd.com/read/27984100/air-puff-induced-vocalizations-a-novel-approach-to-detecting-negative-affective-state-following-concussion-in-rats
#12
Jenny R Browning, Ashley C Whiteman, Lai Yee Leung, Xi-Chun May Lu, Deborah A Shear
BACKGROUND: Negative emotional states resulting from concussion are of increasing concern. In the current study, we developed a model to investigate negative affect following concussion in the projectile concussive injury (PCI) model. High frequency ultrasonic vocalizations (22kHz USVs) are associated with negative affective stimuli in rats. Changes in negative affective state were examined following PCI using a mild air-puff stimulus to elicit 22kHz USVs. NEW METHOD: Forty-eight hours post-injury animals were placed into a clean acrylic box lined with bedding...
October 29, 2016: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27957529/contrast-enhancement-without-transient-map-expansion-for-species-specific-vocalizations-in-core-auditory-cortex-during-learning
#13
Kathryn N Shepard, Kelly K Chong, Robert C Liu
Tonotopic map plasticity in the adult auditory cortex (AC) is a well established and oft-cited measure of auditory associative learning in classical conditioning paradigms. However, its necessity as an enduring memory trace has been debated, especially given a recent finding that the areal expansion of core AC tuned to a newly relevant frequency range may arise only transiently to support auditory learning. This has been reinforced by an ethological paradigm showing that map expansion is not observed for ultrasonic vocalizations (USVs) or for ultrasound frequencies in postweaning dams for whom USVs emitted by pups acquire behavioral relevance...
November 2016: ENeuro
https://www.readbyqxmd.com/read/27956212/voluntary-ethanol-consumption-changes-anticipatory-ultrasonic-vocalizations-but-not-novelty-response
#14
Erik J Garcia, Emily T Jorgensen, Lukas S Sprick, Mary E Cain
Novelty and sensation seeking (NSS) and affective disorders are correlated with earlier ethanol (ETOH) consumption, and sustained drinking into adulthood. Understanding the NSS response and affective response before and after voluntary ETOH consumption could elucidate important individual differences promoting sustained ETOH consumption. This study determined that NSS and affective response to rewarding stimulation-measured by ultrasonic vocalizations (USVs)-change after adolescent ETOH voluntary drinking. Rats were tested for their NSS response using the inescapable novelty test...
March 1, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/27914389/discrimination-of-frequency-modulated-sweeps-by-mice
#15
Laurel A Screven, Micheal L Dent
Mice often produce ultrasonic vocalizations (USVs) that sweep upwards in frequency from around 60 to around 80 kHz and downwards in frequency from 80 to 60 kHz. Whether or not these USVs are used for communication purposes is still unknown. Here, mice were trained and tested using operant conditioning procedures and positive reinforcement to discriminate between synthetic upsweeps and downsweeps. The stimuli varied in bandwidth, duration, and direction of sweep. The mice performed significantly worse when discriminating between background and test stimuli when the stimuli all occupied the same bandwidths...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27910188/comparing-rewarding-and-reinforcing-properties-between-bath-salt-3-4-methylenedioxypyrovalerone-mdpv-and-cocaine-using-ultrasonic-vocalizations-in-rats
#16
Steven J Simmons, Ryan A Gregg, Fionya H Tran, Lili Mo, Eva von Weltin, David J Barker, Taylor A Gentile, Lucas R Watterson, Scott M Rawls, John W Muschamp
Abuse of synthetic psychostimulants like synthetic cathinones has risen in recent years. 3,4-Methylenedioxypyrovalerone (MDPV) is one such synthetic cathinone that demonstrates a mechanism of action similar to cocaine. Compared to cocaine, MDPV is more potent at blocking dopamine and norepinephrine reuptake and is readily self-administered by rodents. The present study compared the rewarding and reinforcing properties of MDPV and cocaine using systemic injection dose-response and self-administration models...
December 1, 2016: Addiction Biology
https://www.readbyqxmd.com/read/27898027/analgesic-effect-of-indian-gooseberry-emblica-officinalis-fruit-extracts-on-postoperative-and-neuropathic-pain-in-rats
#17
Dong Wook Lim, Jae Goo Kim, Yun Tai Kim
Indian gooseberry (Emblica officinalis fruit), also known as "Amla" is one of the oldest edible fruits known in India. It has also traditionally been used to treat inflammation, and as an analgesic to treat wounds. However, experimental evidence for the analgesic effects of E. officinalis has been lacking. The present study investigated whether E. officinalis extracts exhibit analgesic effects in the plantar incision (PI) and spared nerve injury (SNI) pain-model rats. We evaluated the mechanical withdrawal threshold (MWT) using von Frey filaments, and pain-related behavior was determined after surgery based on ultrasonic vocalization (USV)...
November 26, 2016: Nutrients
https://www.readbyqxmd.com/read/27871902/the-effects-of-long-term-estradiol-treatment-on-social-behavior-and-gene-expression-in-adult-female-rats
#18
Alexandra N Garcia, Kelsey Bezner, Christina Depena, Weiling Yin, Andrea C Gore
This study tested the effects of long-term estradiol (E2) replacement on social behavior and gene expression in brain nuclei involved in the regulation of these social behaviors in adult female rats. We developed an ultrasonic vocalization (USV) test and a sociability test to examine communications, social interactions, and social preference, using young adult female cagemates. All rats were ovariectomized (OVX) and implanted with a Silastic capsule containing E2 or vehicle, and housed in same-treatment pairs for a 3-month period...
January 2017: Hormones and Behavior
https://www.readbyqxmd.com/read/27842942/evaluation-of-50-khz-ultrasonic-vocalizations-in-animal-models-of-mania-ketamine-and-lisdexamfetamine-induced-hyperlocomotion-in-rats
#19
Etieli Wendler, Camila Pasquini de Souza, Debora Dalla Vecchia, Luiz Kae Sales Kanazawa, Palloma de Almeida Soares Hocayen, Markus Wöhr, Rainer K W Schwarting, Roberto Andreatini
Drug-induced hyperlocomotion in rodents is frequently used as a behavioral model for mania. However, the use of locomotor activity as the single parameter in these animal models of mania may pose some limitations for developing new pharmacological treatments. Thus, alternative behavioral markers are required. Fifty-kHz ultrasonic vocalizations (USV), which are thought to represent positive affect, are increased by the administration of the psychostimulant d-amphetamine, an effect that can be prevented by lithium treatment, the gold standard antimanic drug for treating bipolar disorder...
December 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27837333/individual-differences-in-food-cue-responsivity-are-associated-with-acute-and-repeated-cocaine-induced-vocalizations-but-not-cue-induced-vocalizations
#20
Jordan A Tripi, Micheal L Dent, Paul J Meyer
RATIONALE: Individuals prone to attribute incentive salience to food-associated stimuli ("cues") are also more sensitive to cues during drug seeking and drug taking. This may be due in part to a difference in sensitivity to the affective or other stimulus properties of the drug. In rats, these properties are associated with 50-kHz ultrasonic vocalizations (USVs), in that they are elicited during putative positive affective and motivational states, including in response to drugs of abuse...
February 2017: Psychopharmacology
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