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Costa, Renan M.; Baxter, Douglas A.; Byrne, John H. – Learning & Memory, 2020
Operant reward learning of feeding behavior in "Aplysia" increases the frequency and regularity of biting, as well as biases buccal motor patterns (BMPs) toward ingestion-like BMPs (iBMPs). The engram underlying this memory comprises cells that are part of a central pattern generating (CPG) circuit and includes increases in the intrinsic…
Descriptors: Memory, Brain Hemisphere Functions, Neurological Organization, Operant Conditioning
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Lyons, Lisa C.; Gardner, Jacob S.; Gandour, Catherine E.; Krishnan, Harini C. – Learning & Memory, 2017
We investigated the in vivo role of protein degradation during intermediate (ITM) and long-term memory (LTM) in "Aplysia" using an operant learning paradigm. The proteasome inhibitor MG-132 inhibited the induction and molecular consolidation of LTM with no effect on ITM. Remarkably, maintenance of steady-state protein levels through…
Descriptors: Memory, Biochemistry, Brain Hemisphere Functions, Role
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Davies, Don A.; Hurtubise, Jessica L.; Greba, Quentin; Howland, John G. – Learning & Memory, 2017
The trial-unique, delayed nonmatching-to-location (TUNL) task is a recently developed behavioral task that measures spatial working memory and a form of pattern separation in touchscreen-equipped operant conditioning chambers. Limited information exists regarding the neurotransmitters and neural substrates involved in the task. The present…
Descriptors: Brain Hemisphere Functions, Brain, Short Term Memory, Neurological Organization
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Jean-Richard-dit-Bressel , Philip; McNally, Gavan P. – Learning & Memory, 2016
Aversive outcomes punish behaviors that cause their occurrence. The prefrontal cortex (PFC) has been implicated in punishment learning and behavior, although the exact roles for different PFC regions in instrumental aversive learning and decision-making remain poorly understood. Here, we assessed the role of the orbitofrontal (OFC), rostral…
Descriptors: Human Body, Brain, Lateral Dominance, Brain Hemisphere Functions
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Wolpaw, Jonathan R.; Chen, Xiang Yang – Learning & Memory, 2006
Operant conditioning of the H-reflex, the electrical analog of the spinal stretch reflex, is a simple model of skill acquisition and involves plasticity in the spinal cord. Previous work showed that the cerebellum is essential for down-conditioning the H-reflex. This study asks whether the cerebellum is also essential for maintaining…
Descriptors: Psychomotor Skills, Operant Conditioning, Human Body, Animals
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Fontan-Lozano, Angela; Troncoso, Julieta; Munera, Alejandro; Carrion, Angel Manuel; Delgado-Garcia, Jose Maria – Learning & Memory, 2005
We studied the effects of a selective lesion in rats, with 192-IgG-saporin, of the cholinergic neurons located in the medial septum/diagonal band (MSDB) complex on the acquisition of classical and instrumental conditioning paradigms. The MSDB lesion induced a marked deficit in the acquisition, but not in the retrieval, of eyeblink classical…
Descriptors: Patients, Associative Learning, Operant Conditioning, Alzheimers Disease