دانلود مقاله ISI انگلیسی شماره 134497
ترجمه فارسی عنوان مقاله

تغییرات در رفلکس های هیجان انگیز صوتی در موش های ناشی از پخش مکالمات 22 کیلوهرتز

عنوان انگلیسی
Changes in acoustic startle reflex in rats induced by playback of 22-kHz calls
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
134497 2017 6 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Physiology & Behavior, Volume 169, 1 February 2017, Pages 189-194

ترجمه کلمات کلیدی
زنگ هشدار، اضطراب، ارتباط اجتماعی، پاسخ استرس، آوالیزاسیون التراسونیک،
کلمات کلیدی انگلیسی
Alarm call; Anxiety; Social communication; Stress response; Ultrasonic vocalization;
پیش نمایش مقاله
پیش نمایش مقاله  تغییرات در رفلکس های هیجان انگیز صوتی در موش های ناشی از پخش مکالمات 22 کیلوهرتز

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 22 kHz, appears important for ultrasonic alarm-signal communication in rats.