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Hupbach, Almut; Gomez, Rebecca; Hardt, Oliver; Nadel, Lynn – Learning & Memory, 2007
Recent demonstrations of "reconsolidation" suggest that memories can be modified when they are reactivated. Reconsolidation has been observed in human procedural memory and in implicit memory in infants. This study asks whether episodic memory undergoes reconsolidation. College students learned a list of objects on Day 1. On Day 2, they received a…
Descriptors: Memory, Contingency Management, Behavior Modification, Neuropsychology
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Gugsa, Nishan; Schoenbaum, Geoffrey; Burke, Kathryn A.; Franz, Theresa M. – Learning & Memory, 2006
Psychostimulant exposure has been shown to cause molecular and cellular changes in prefrontal cortex. It has been hypothesized that these drug-induced changes might affect the operation of prefrontal-limbic circuits, disrupting their normal role in controlling behavior and thereby leading to compulsive drug-seeking. To test this hypothesis, we…
Descriptors: Conditioning, Fear, Scientific Research, Scientific Methodology
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Jami, Shekib; Barad, Mark; Cain, Christopher K.; Godsil, Bill P. – Learning & Memory, 2005
We recently reported that fear extinction, a form of inhibitory learning, is selectively blocked by systemic administration of L-type voltage-gated calcium channel (LVGCC) antagonists, including nifedipine, in mice. We here replicate this finding and examine three reduced contingency effects after vehicle or nifedipine (40 mg/kg) administration.…
Descriptors: Inhibition, Animals, Contingency Management, Behavior Modification
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Hernandez, Pepe J.; Kelley, Ann E. – Learning & Memory, 2004
Recent evidence indicates that certain forms of memory, upon recall, may return to a labile state requiring the synthesis of new proteins in order to preserve or reconsolidate the original memory trace. While the initial consolidation of "instrumental memories" has been shown to require de novo protein synthesis in the nucleus accumbens, it is not…
Descriptors: Reinforcement, Long Term Memory, Contingency Management, Behavior Modification
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Okado, Yoko; Stark, Craig E. L. – Learning & Memory, 2005
False memories are often demonstrated using the misinformation paradigm, in which a person's recollection of a witnessed event is altered after exposure to misinformation about the event. The neural basis of this phenomenon, however, remains unknown. The authors used fMRI to investigate encoding processes during the viewing of an event and…
Descriptors: Neurolinguistics, Memory, Coding, Knowledge Representation
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Takehara-Nishiuchi, Kaori; Kawahara, Shigenori; Kirino, Yutaka – Learning & Memory, 2005
Permanent lesions in the medial prefrontal cortex (mPFC) affect acquisition of conditioned responses (CRs) during trace eyeblink conditioning and retention of remotely acquired CRs. To clarify further roles of the mPFC in this type of learning, we investigated the participation of the mPFC in mnemonic processes both during and after daily…
Descriptors: Conditioning, Control Groups, Mnemonics, Eye Movements
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Barco, Angel; Kandel, Eric R.; Gordon, Barbara; Lickey, Marvin E.; Suzuki, Seigo; Pham, Tony A.; Graham, Sarah J. – Learning & Memory, 2004
The adult cerebral cortex can adapt to environmental change. Using monocular deprivation as a paradigm, we find that rapid experience-dependent plasticity exists even in the mature primary visual cortex. However, adult cortical plasticity differs from developmental plasticity in two important ways. First, the effect of adult, but not juvenile…
Descriptors: Age Differences, Animals, Visual Stimuli, Science Experiments
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Alahyane, Nadia; Pelisson, Denis – Learning & Memory, 2005
The adaptation of saccadic eye movements to environmental changes occurring throughout life is a good model of motor learning and motor memory. Numerous studies have analyzed the behavioral properties and neural substrate of oculomotor learning in short-term saccadic adaptation protocols, but to our knowledge, none have tested the persistence of…
Descriptors: Memory, Human Body, Eye Movements, Behavior Modification