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Direct linkNelson, James Byron; Fabiano, Andrew M.; Lamoureux, Jeffrey A. – Learning & Memory, 2018
Two experiments assessed the effects of extinguishing a conditioned cue on subsequent context conditioning. Each experiment used a different video-game method where sensors predicted attacking spaceships and participants responded to the sensor in a way that prepared them for the upcoming attack. In Experiment 1 extinction of a cue which signaled…
Descriptors: Learning Processes, Arousal Patterns, Attention, Context Effect
Ferrara, Nicole C.; Cullen, Patrick K.; Pullins, Shane P.; Rotondo, Elena K.; Helmstetter, Fred J. – Learning & Memory, 2017
Generalization of fear can involve abnormal responding to cues that signal safety and is common in people diagnosed with post-traumatic stress disorder. Differential auditory fear conditioning can be used as a tool to measure changes in fear discrimination and generalization. Most prior work in this area has focused on elevated amygdala activity…
Descriptors: Fear, Brain, Memory, Discrimination Learning
Norrholm, Seth D.; Jovanovic, Tanja; Vervliet, Bram; Myers, Karyn M.; Davis, Michael; Rothbaum, Barbara O.; Duncan, Erica J. – Learning & Memory, 2006
The purpose of this study was to analyze fear extinction and reinstatement in humans using fear-potentiated startle. Participants were fear conditioned using a simple discrimination procedure with colored lights as the conditioned stimuli (CSs) and an airblast to the throat as the unconditioned stimulus (US). Participants were extinguished 24 h…
Descriptors: Fear, Conditioning, Responses, Visual Stimuli
Lebel, David; Sidhu, Nishchal; Barkai, Edi; Quinlan, Elizabeth M. – Learning & Memory, 2006
Olfactory discrimination (OD) learning consists of two phases: an initial N-methyl-d-aspartate (NMDA) receptor--sensitive rule-learning phase, followed by an NMDA receptor (NMDAR)--insensitive pair-learning phase. The rule-learning phase is accompanied by changes in the composition and function of NMDARs at synapses in the piriform cortex,…
Descriptors: Behavior Modification, Discrimination Learning, Neurolinguistics, Conditioning
Cattarelli, Martine; Dardou, David; Datiche, Frederique – Learning & Memory, 2006
When an odor is paired with a delayed illness, rats acquire a relatively weak odor aversion. In contrast, rats develop a strong aversion to an olfactory cue paired with delayed illness if it is presented simultaneously with a gustatory cue. Such a conditioning effect has been referred to as taste-potentiated odor aversion learning (TPOA). TPOA is…
Descriptors: Animal Behavior, Behavior Modification, Nonverbal Learning, Laboratory Experiments
Torras-Garcia, Meritxell; Tronel, Sophie; Sara, Susan J.; Lelong, Julien – Learning & Memory, 2005
A rapidly learned odor discrimination task based on spontaneous foraging behavior of the rat was used to evaluate the role of N-methyl-D-aspartate (NMDA) receptors (NMDARs) in ongoing memory consolidation. Rats were trained in a single session to discriminate among three odors, one of which was associated with palatable food reward. Previous…
Descriptors: Mnemonics, Role Perception, Memory, Memorization
