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Hippocampal Regulation of Context-Dependent Neuronal Activity in the Lateral Amygdala
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Maren, Stephen; Hobin, Jennifer A. – Learning & Memory, 2007
Pavlovian fear conditioning is a robust and enduring form of emotional learning that provides an ideal model system for studying contextual regulation of memory retrieval. After extinction the expression of fear conditional responses (CRs) is context-specific: A conditional stimulus (CS) elicits greater conditional responding outside compared with…
Descriptors: Fear, Classical Conditioning, Memory, Neurology
Neural Events in the Reinforcement Contingency
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Silva, Maria Teresa Araujo; Goncalves, Fabio Leyser; Garcia-Mijares, Miriam – Behavior Analyst, 2007
When neural events are analyzed as stimuli and responses, functional relations among them and among overt stimuli and responses can be unveiled. The integration of neuroscience and the experimental analysis of behavior is beginning to provide empirical evidence of involvement of neural events in the three-term contingency relating discriminative…
Descriptors: Stimuli, Stimulation, Neurology, Responses
Associative Memory in Three Aplysiids: Correlation with Heterosynaptic Modulation
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Thompson, Laura; Wright, William G.; Hoover, Brian A.; Nguyen, Hoang – Learning & Memory, 2006
Much recent research on mechanisms of learning and memory focuses on the role of heterosynaptic neuromodulatory signaling. Such neuromodulation appears to stabilize Hebbian synaptic changes underlying associative learning, thereby extending memory. Previous comparisons of three related sea-hares (Mollusca, Opisthobranchia) uncovered interspecific…
Descriptors: Classical Conditioning, Memory, Associative Learning, Correlation
Extending In Vitro Conditioning in "Aplysia" to Analyze Operant and Classical Processes in the Same Preparation
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Brembs, Bjorn; Baxter, Douglas A.; Byrne, John H. – Learning & Memory, 2004
Operant and classical conditioning are major processes shaping behavioral responses in all animals. Although the understanding of the mechanisms of classical conditioning has expanded significantly, the understanding of the mechanisms of operant conditioning is more limited. Recent developments in "Aplysia" are helping to narrow the gap in the…
Descriptors: Operant Conditioning, Classical Conditioning, Responses, Animals
Cerebellar Norepinephrine Modulates Learning of Delay Classical Eyeblink Conditioning: Evidence for Post-Synaptic Signaling via PKA
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Fister, Mathew; Bickford, Paula C.; Cartford, M. Claire; Samec, Amy – Learning & Memory, 2004
The neurotransmitter norepinephrine (NE) has been shown to modulate cerebellar-dependent learning and memory. Lesions of the nucleus locus coeruleus or systemic blockade of noradrenergic receptors has been shown to delay the acquisition of several cerebellar-dependent learning tasks. To date, no studies have shown a direct involvement of…
Descriptors: Eye Movements, Classical Conditioning, Learning Processes, Biochemistry
Abnormal Classical Eye-Blink Conditioning in Autism.
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Sears, Lonnie L.; And Others – Journal of Autism and Developmental Disorders, 1994
This study evaluated eye-blink conditioning in 11 persons with autism (ages 11 to 22). Compared to matched controls, persons with autism learned the task faster but performed short-latency, high-amplitude conditioned responses. Results suggest this population has the ability to rapidly associate paired stimuli but may have impairments in…
Descriptors: Autism, Classical Conditioning, Neurology, Paired Associate Learning