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Yang, Jiongjiong; Zhan, Lexia; Wang, Yingying; Du, Xiaoya; Zhou, Wenxi; Ning, Xueling; Sun, Qing; Moscovitch, Morris – Learning & Memory, 2016
Are associative memories forgotten more quickly than item memories, and does the level of original learning differentially influence forgetting rates? In this study, we addressed these questions by having participants learn single words and word pairs once (Experiment 1), three times (Experiment 2), and six times (Experiment 3) in a massed…
Descriptors: Learning Experience, Memory, Associative Learning, Recognition (Psychology)
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Talamini, Lucia M.; Gorree, Eva – Learning & Memory, 2012
Some memories about events can persist for decades, even a lifetime. However, recent memories incorporate rich sensory information, including knowledge on the spatial and temporal ordering of event features, while old memories typically lack this "filmic" quality. We suggest that this apparent change in the nature of memories may reflect a…
Descriptors: Intervals, Models, Recall (Psychology), Long Term Memory
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Woodruff-Pak, Diana S.; Seta, Susan E.; Roker, LaToya A.; Lehr, Melissa A. – Learning & Memory, 2007
The aim of this study was to examine parameters affecting age differences in eyeblink classical conditioning in a large sample of young and middle-aged rabbits. A total of 122 rabbits of mean ages of 4 or 26 mo were tested at inter-stimulus intervals (ISIs) of 600 or 750 msec in the delay or trace paradigms. Paradigm affected both age groups…
Descriptors: Animals, Models, Intervals, Classical Conditioning
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Steward, Oswald; Huang, Fen; Guzowski, John F. – Learning & Memory, 2007
Stimulation paradigms that induce perforant path long-term potentiation (LTP) initiate phosphorylation of ERK1/2 and induce expression of a variety of immediate early genes (IEGs). These events are thought to be critical components of the mechanism for establishing the changes in synaptic efficacy that endure for hours or longer. Here we show that…
Descriptors: Stimulation, Seizures, Animals, Behavior Modification
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Davis, Michael; Myers, Karyn M.; Ressler, Kerry J. – Learning & Memory, 2006
Fear extinction is defined as a decline in conditioned fear responses (CRs) following nonreinforced exposure to a feared conditioned stimulus (CS). Behavioral evidence indicates that extinction is a form of inhibitory learning: Extinguished fear responses reappear with the passage of time (spontaneous recovery), a shift of context (renewal), and…
Descriptors: Fear, Epidemiology, Behavioral Science Research, Conditioning
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Hebda-Bauer, Elaine K.; Watson, Stanley J.; Akil, Huda – Learning & Memory, 2005
The impact of a previously successful or unsuccessful experience on the subsequent acquisition of a related task is not well understood. The nature of past experience may have even greater impact in individuals with learning deficits, as their cognitive processes can be easily disrupted. Mice with a targeted disruption of the [alpha] and [delta]…
Descriptors: Memory, Learning Experience, Intervals, Animals