کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10143620 | 1646184 | 2018 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Non-pharmacological induction of rat 50â¯kHz ultrasonic vocalization: Social and non-social contexts differentially induce 50â¯kHz call subtypes
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
فیزیولوژی
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چکیده انگلیسی
The emission of 50â¯kHz ultrasonic vocalizations (USVs) by rats is thought to represent a measurable expression of the individuals underlying emotional state. These calls are also posited as fulfilling important communicative functions among conspecifics. In addition to social situations, 50â¯kHz USVs are recorded in a variety of reward-related contexts including sugary foods and drink, consumable ethanol, and drugs of abuse. The current study sought to directly compare several of these behavioural contexts in their capability to induce and modulate 50â¯kHz USV emission in adult male rats. Using two social conditions (exposure of naïve rat to a naturally cycling female and reuniting with a same-sex cage partner) and two non-social conditions (access to consumables as Fruit Loops or 2% ethanol v/v), we analyzed USVs recorded in 6 stimulus-presentation sessions. Only the female-exposure condition was found to increase 50â¯kHz call rate significantly over baseline, and this induction sensitized across 4 standard recording sessions. The use of a same-sex cage-mate and the two consumable food rewards did not elicit higher than baseline 50â¯kHz calling. None of the behavioural contexts altered the acoustic parameters (peak frequency, duration, and bandwidth) of emitted 50â¯kHz calls. In counter-balanced recording sessions, calling across all groups was significantly reduced by pre-treatment with the dopamine antagonist haloperidol compared with vehicle. Non-social conditions appeared to induce a greater proportion of flat calls at the expense of non-trill FM calls, while the reverse was seen for social conditions. However, the type of food reward and the type of social context mattered for proportion of flat and trill calls respectively. When compared with a control, access to sugary food but not ethanol induced a greater proportion of flat calls, and the female but not the cage-mate stimulus induced a greater proportion of trill calls.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physiology & Behavior - Volume 196, 1 November 2018, Pages 200-207
Journal: Physiology & Behavior - Volume 196, 1 November 2018, Pages 200-207
نویسندگان
Kevin G. Mulvihill, Stefan M. Brudzynski,