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Xie, Zhiyong; Huang, Cheng; Ci, Bo; Lianzhang, Wang; Zhong, Yi – Learning & Memory, 2013
Extensive studies of "Drosophila" mushroom body in formation and retrieval of olfactory memories allow us to delineate the functional logic for memory storage and retrieval. Currently, there is a questionable disassociation of circuits for memory storage and retrieval during "Drosophila" olfactory memory processing. Formation…
Descriptors: Entomology, Memory, Olfactory Perception, Brain
Yu, Dinghui; Tan, Ying; Chakraborty, Molee; Tomchik, Seth; Davis, Ronald L. – Learning & Memory, 2018
The evolutionarily conserved Elongator Complex associates with RNA polymerase II for transcriptional elongation. Elp3 is the catalytic subunit, contains histone acetyltransferase activity, and is associated with neurodegeneration in humans. Elp1 is a scaffolding subunit and when mutated causes familial dysautonomia. Here, we show that…
Descriptors: Olfactory Perception, Animals, Genetics, Memory
Scott, Gavin A.; Liu, Max C.; Tahir, Nimra B.; Zabder, Nadine K.; Song, Yuanyi; Greba, Quentin; Howland, John G. – Learning & Memory, 2020
Working memory (WM), the capacity for short-term storage of small quantities of information for immediate use, is thought to depend on activity within the prefrontal cortex. Recent evidence indicates that the prefrontal neuronal activity supporting WM is driven by thalamocortical connections arising in mediodorsal thalamus (mdThal). However, the…
Descriptors: Role, Animals, Brain Hemisphere Functions, Short Term Memory
Jacobs, Stephanie; Wei, Wei; Wang, Deheng; Tsien, Joe Z. – Learning & Memory, 2015
The N-methyl-D-aspartate (NMDA) receptor is known to be necessary for many forms of learning and memory, including social recognition memory. Additionally, the GluN2 subunits are known to modulate multiple forms of memory, with a high GluN2A:GluN2B ratio leading to impairments in long-term memory, while a low GluN2A:GluN2B ratio enhances some…
Descriptors: Learning, Memory, Recognition (Psychology), Animals
Madalan, Adrian; Yang, Xiao; Ferris, Jacob; Zhang, Shixing; Roman, Gregg – Learning & Memory, 2012
Heterotrimeric G(o) is an abundant brain protein required for negatively reinforced short-term associative olfactory memory in "Drosophila". G(o) is the only known substrate of the S1 subunit of pertussis toxin (PTX) in fly, and acute expression of PTX within the mushroom body neurons (MB) induces a reversible deficit in associative olfactory…
Descriptors: Associative Learning, Short Term Memory, Cognitive Processes, Animals
Geddes, Lisa H.; McQuillan, H. James; Aiken, Alastair; Vergoz, Vanina; Mercer, Alison R. – Learning & Memory, 2013
Here, we examine effects of the steroid hormone, 20-hydroxyecdysone (20-E), on associative olfactory learning in the honeybee, "Apis mellifera." 20-E impaired the bees' ability to associate odors with punishment during aversive conditioning, but did not interfere with their ability to associate odors with a food reward (appetitive…
Descriptors: Olfactory Perception, Entomology, Biochemistry, Punishment
MacQueen, David A.; Dalrymple, Savannah R.; Drobes, David J.; Diamond, David M. – Learning & Memory, 2016
Developed as a tool to assess working memory capacity in rodents, the odor span task (OST) has significant potential to advance drug discovery in animal models of psychiatric disorders. Prior investigations indicate OST performance is impaired by systemic administration of N-methyl-D-aspartate receptor (NMDA-r) antagonists and is sensitive to…
Descriptors: Short Term Memory, Animals, Drug Use, Psychiatry
Sorokowska, Agnieszka; Nord, Marie; Stefanczyk, Michal Mikolaj; Larsson, Maria – Learning & Memory, 2022
Reinstating the olfactory learning context can increase access to memory information, but it is not fully clear which memory functions are subject to an enhancing odor context reinstatement effect. Here, we tested whether congruent odor context during encoding and recall positively affected declarative and nondeclarative memory scores using a…
Descriptors: Olfactory Perception, Recall (Psychology), Story Telling, Information Retrieval
McQuillan, H. James; Nakagawa, Shinichi; Mercer, Alison R. – Learning & Memory, 2012
Dopamine and octopamine released in the mushroom bodies of the insect brain play a critical role in the formation of aversive and appetitive memories, respectively. As recent evidence suggests a complex relationship between the effects of these two amines on the output of mushroom body circuits, we compared the expression of dopamine- and…
Descriptors: Brain, Entomology, Genetics, Cytology
Pavesi, Eloisa; Heldt, Scott A.; Fletcher, Max L. – Learning & Memory, 2013
Experience-induced changes associated with odor learning are mediated by a number of signaling molecules, including nitric oxide (NO), which is predominantly synthesized by neuronal nitric oxide synthase (nNOS) in the brain. In the current study, we investigated the role of nNOS in the acquisition and retention of conditioned olfactory fear. Mice…
Descriptors: Memory, Generalization, Fear, Olfactory Perception
Hourcade, Benoit; Perisse, Emmanuel; Devaud, Jean-Marc; Sandoz, Jean-Christophe – Learning & Memory, 2009
The storage of stable memories is generally considered to rely on changes in the functional properties and/or the synaptic connectivity of neural networks. However, these changes are not easily tractable given the complexity of the learning procedures and brain circuits studied. Such a search can be narrowed down by studying memories of specific…
Descriptors: Classical Conditioning, Long Term Memory, Brain, Memory
Ferry, Barbara; Duchamp-Viret, Patricia – Learning & Memory, 2014
To test the selectivity of the orexin A (OXA) system in olfactory sensitivity, the present study compared the effects of fasting and of central infusion of OXA on the memory processes underlying odor-malaise association during the conditioned odor aversion (COA) paradigm. Animals implanted with a cannula in the left ventricle received ICV infusion…
Descriptors: Animals, Conditioning, Food, Behavior
Rahn, Tasja; Leippe, Matthias; Roeder, Thomas; Fedders, Henning – Learning & Memory, 2013
Signaling via the epidermal growth factor receptor (EGFR) pathway has emerged as one of the key mechanisms in the development of the central nervous system in "Drosophila melanogaster." By contrast, little is known about the functions of EGFR signaling in the differentiated larval brain. Here, promoter-reporter lines of EGFR and its most prominent…
Descriptors: Memory, Anatomy, Brain Hemisphere Functions, Neurology
Peer reviewed
Danthiir, Vanessa; Roberts, Richard D.; Pallier, Gerry; Stankov, Lazar – Intelligence, 2001
Studied the role of olfactory processes within the theory of fluid and crystallized intelligence by testing 107 Australian college students with a battery of psychometric and olfactory tests. Results indicate the likely existence of an olfactory memory ability that is structurally independent of established higher-order abilities and not related…
Descriptors: Cognitive Ability, College Students, Foreign Countries, Higher Education
Wolf, Gerald; Engelmann, Mario; Richter, Karin – Learning & Memory, 2005
Olfactory recognition memory was tested in adult male mice using a social discrimination task. The testing was conducted to begin to characterize the role of protein synthesis and the specific brain regions associated with activity in this task. Long-term olfactory recognition memory was blocked when the protein synthesis inhibitor anisomycin was…
Descriptors: Brain, Animals, Recognition (Psychology), Social Discrimination