کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8650306 | 1571124 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Revisiting the autoconditioning hypothesis for acquired reactivity to ultrasonic alarm calls
ترجمه فارسی عنوان
بازبینی فرضیه اتوکاردینگ برای واکنش بدست آمده به فراخوان زنگ هشدار اولتراسونیک
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کلمات کلیدی
آوالیزاسیون التراسونیک، زنگ هشدار، ارتباطات احساسی، تهدید ترس،
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
فیزیولوژی
چکیده انگلیسی
Rats emit 22â¯kHz ultrasonic vocalizations (USVs) in association with pain, fear, or distress. Whereas the capacity to produce USVs is innate, reactivity to them appears to require experience. Specifically, 22â¯kHz USVs fail to elicit freezing behavior in naïve laboratory rats. However, these “alarm calls” do elicit freezing in rats that previously experienced foot shocks. These findings led to the hypothesis that acquired reactivity is based on “autoconditioning”-learning in which self-generated 22â¯kHz USVs serve as Pavlovian cues that become associated with foot shocks. The current study tested the autoconditioning hypothesis by devocalizing rats through a unilateral transection of the recurrent laryngeal nerve (Experimental group). Subsequently, animals in both the Experimental and sham-operated Control groups received five unsignaled foot shocks. One or two days later, both groups were tested for USV-elicited freezing in a novel context. Recurrent laryngeal nerve transection failed to prevent or even diminish USV-elicited freezing. In fact, both groups showed large and comparable increases in freezing to USV presentations. A subset of Control animals failed to vocalize during conditioning, while some Experimental animals did vocalize during conditioning. Animals were therefore re-grouped and reanalyzed based on whether they vocalized during conditioning. Again, both groups showed large and comparable increases in USV-elicited freezing. These results disconfirm the essential tenet or prediction of the autoconditioning hypothesis. Alternative mechanisms for acquired reactivity to 22â¯kHz USVs are therefore considered.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physiology & Behavior - Volume 194, 1 October 2018, Pages 380-386
Journal: Physiology & Behavior - Volume 194, 1 October 2018, Pages 380-386
نویسندگان
Catrina A. Calub, Sharon C. Furtak, Thomas H. Brown,