Marek Gryz

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This study utilised the two injection protocol of sensitisation (TIPS) and the conditioned place preference test to validate and extend previous findings on the effects of amphetamine on positive reinforcement-related 50 kHz ultrasonic vocalisation (USV) in rats. We also examined changes in the expression of c-Fos and the NMDA receptor 2B (GluN2B) subunit,(More)
This study used the conditioned place preference test to explore the effects of subchronic amphetamine administration on drug-associated cues in rats with different emotional reactivity. We also examined the changes in markers of dopaminergic activity in brain regions in response to the amphetamine-paired context, after a withdrawal period preceded by(More)
The aim of this study was to assess the mechanisms underlying behavioural differences between high- (HR) and low- (LR) anxiety rats, selected according to their behaviour in the contextual fear test (i.e., the duration of the freezing response was used as a discriminating variable), after a chronic restraint procedure (21days, 3h daily). We analysed the(More)
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