کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5594010 | 1571150 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Changes in acoustic startle reflex in rats induced by playback of 22-kHz calls
ترجمه فارسی عنوان
تغییرات در رفلکس های هیجان انگیز صوتی در موش های ناشی از پخش مکالمات 22 کیلوهرتز
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کلمات کلیدی
زنگ هشدار، اضطراب، ارتباط اجتماعی، پاسخ استرس، آوالیزاسیون التراسونیک،
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
فیزیولوژی
چکیده انگلیسی
In aversive or dangerous situations, adult rats emit long characteristic ultrasonic calls, often termed “22-kHz calls,” which have been suggested to play a role of alarm calls. Although the playback experiment is one of the most effective ways to investigate the alarming properties of 22-kHz calls, clear behavioral evidence showing the anxiogenic effects of these playback stimuli has not been directly obtained to date. In this study, we investigated whether playback of 22-kHz calls or synthesized sine tones could change the acoustic startle reflex (ASR), enhancement of which is widely considered to be a reliable index of anxiety-related negative affective states in rats. Playback of 22-kHz calls significantly enhanced the ASR in rats. Enhancement effects caused by playback of 22-kHz calls from young rats were relatively weak compared to those after calls from adult rats. Playback of synthesized 25-kHz sine tones enhanced ASR in subjects, but not synthesized 60-kHz tones. Further, shortening the individual call duration of synthesized 25-kHz sine tones also enhanced the ASR. Accordingly, it is suggested that 22-kHz calls induce anxiety by socially communicated alarming signals in rats. The results also demonstrated that call frequency, i.e., of 22Â kHz, appears important for ultrasonic alarm-signal communication in rats.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physiology & Behavior - Volume 169, 1 February 2017, Pages 189-194
Journal: Physiology & Behavior - Volume 169, 1 February 2017, Pages 189-194
نویسندگان
Hideaki Inagaki, Takahiro Ushida,