دانلود مقاله ISI انگلیسی شماره 122014
ترجمه فارسی عنوان مقاله

تجویز پروپرانولول خوراکی و تثبیت آن قبل، اما نه بعد از فعال سازی حافظه (دوباره) در انسان، تحت تاثیر قرار می گیرد

عنوان انگلیسی
Consolidation and reconsolidation are impaired by oral propranolol administered before but not after memory (re)activation in humans
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
122014 2017 29 صفحه PDF
منبع

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

Journal : Neurobiology of Learning and Memory, Volume 142, Part A, July 2017, Pages 118-125

ترجمه کلمات کلیدی
حافظه احساسی، پروپرانولول، بازسازی،
کلمات کلیدی انگلیسی
Emotional memory; Propranolol; Reconsolidation;
پیش نمایش مقاله
پیش نمایش مقاله  تجویز پروپرانولول خوراکی و تثبیت آن قبل، اما نه بعد از فعال سازی حافظه (دوباره) در انسان، تحت تاثیر قرار می گیرد

چکیده انگلیسی

Propranolol administered immediately after learning or after recall has been found to impair memory consolidation or reconsolidation (respectively) in animals, but less reliably so in humans. Since reconsolidation impairment has been proposed as a treatment for mental disorders that have at their core an emotional memory, it is desirable to understand how to reliably reduce the strength of pathogenic memories in humans. We postulated that since humans (unlike experimental animals) typically receive propranolol orally, this introduces a delay before this drug can exert its memory impairment effects, which may render it less effective. As a means to test this, in two double-blind placebo-controlled experiments, we examined the capacity of propranolol to impair consolidation and reconsolidation as a function of timing of ingestion in healthy subjects. In Experiment 1, (n = 36), propranolol administered immediately after learning or recall failed to impair the consolidation or reconsolidation of the memory of a standardized slideshow with an accompanying emotional story. In Experiment 2 (n = 50), propranolol given 60–75 min before learning or recall successfully impaired memory consolidation and reconsolidation. These results suggest that it is possible to achieve reliable memory impairment in humans if propranolol is given before learning or before recall, but not after.