دانلود مقاله ISI انگلیسی شماره 112639
ترجمه فارسی عنوان مقاله

تست فرضیه پاداش-کنتراست

عنوان انگلیسی
A test of the reward-contrast hypothesis
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
112639 2017 3 صفحه PDF
منبع

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

Journal : Behavioural Processes, Volume 145, December 2017, Pages 15-17

ترجمه کلمات کلیدی
پاداش کنتراست، حافظه منبع، حافظه فضایی، حافظه اپیزودیک، موش
کلمات کلیدی انگلیسی
Reward-contrast; Source memory; Spatial memory; Episodic memory; Rat;
پیش نمایش مقاله
پیش نمایش مقاله  تست فرضیه پاداش-کنتراست

چکیده انگلیسی

Source memory, a facet of episodic memory, is the memory of the origin of information. Whereas source memory in rats is sustained for at least a week, spatial memory degraded after approximately a day. Different forgetting functions may suggest that two memory systems (source memory and spatial memory) are dissociated. However, in previous work, the two tasks used baiting conditions consisting of chocolate and chow flavors; notably, the source memory task used the relatively better flavor. Thus, according to the reward-contrast hypothesis, when chocolate and chow were presented within the same context (i.e., within a single radial maze trial), the chocolate location was more memorable than the chow location because of contrast. We tested the reward-contrast hypothesis using baiting configurations designed to produce reward-contrast. The reward-contrast hypothesis predicts that under these conditions, spatial memory will survive a 24-h retention interval. We documented elimination of spatial memory performance after a 24-h retention interval using a reward-contrast baiting pattern. These data suggest that reward contrast does not explain our earlier findings that source memory survives unusually long retention intervals.