https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:7708 Sat 24 Mar 2018 08:41:37 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:7625 Sat 24 Mar 2018 08:34:44 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:10380 Sat 24 Mar 2018 08:08:47 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:20777 Sat 24 Mar 2018 08:00:27 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:20245 200 cpm) from 25 ± 3% to 9 ± 2% (p = 0.004). Thus, reduction of the mean respiratory rate by LiCl was predominantly due to reduced contribution of high-frequency breathing that is normally associated with motor activity and/or arousal. Non-linear multifractal analysis of respiratory signals revealed that post-LiCl, respiration becomes less random and more orderly. 5-HT3 antagonist ondansetron prevented respiratory changes elicited by LiCl. We conclude that the observed changes likely reflect effects of LiCl on animals’ motion, and that this effect is mediated via 5-HT3 receptors. Providing that the effects observed in our study were quite robust, we suggest that simple and non-invasive respiratory monitoring may be a promising approach for studying emesis in rodents.]]> Sat 24 Mar 2018 07:59:56 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:27304 Sat 24 Mar 2018 07:38:33 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:24079 A agonist muscimol on respiration during stress and presentation of brief alerting stimuli in conscious unrestrained rats. We found that integrity of the dlPAG is not essential for stress-induced increase in basal/resting respiratory rate or for generation of respiratory responses to brief alerting stimuli. However, blockade of the dlPAG reduced the amount of motor activity and concomitant high-frequency respiratory activity during restraint and the first 5 min of novelty stress. We conclude that the integrity of the dlPAG is not essential for generation of respiratory component of the defense reaction, but it mediates expression of the fight-or-flight response including its respiratory component.]]> Sat 24 Mar 2018 07:09:37 AEDT ]]>