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Hakobyan, Olya; Cheng, Sen – Learning & Memory, 2021
Despite its name, associative recognition is a paradigm thought to rely on memory recall. However, it remains unclear how associative information may be represented and retrieved from memory and what its relationship to other information, such as item memory, is. Here, we propose a computational model of associative recognition, where relational…
Descriptors: Associative Learning, Recall (Psychology), Correlation, Cognitive Processes
Kodirov, Sodikdjon A.; Bonni, Kathrin; Wehrmeister, Michael; Lutz, Beat – Learning & Memory, 2021
The depolarization is also important for the short-term synaptic plasticity, known as depolarization-induced suppression of excitation (DSE). The two major types of neurons and their synapses in the lateral nucleus of amygdala (LA) are prone to plasticity. However, DSE in interneurons has not been reported in amygdala in general and in LA in…
Descriptors: Brain Hemisphere Functions, Cytology, Drug Use, Comparative Analysis
Eckert, Michael J.; Iyer, Kartik; Euston, David R.; Tatsuno, Masami – Learning & Memory, 2021
Neocortical sleep spindles have been shown to occur more frequently following a memory task, suggesting that a method to increase spindle activity could improve memory processing. Stimulation of the neocortex can elicit a slow oscillation (SO) and a spindle, but the feasibility of this method to boost SO and spindles over time has not been tested.…
Descriptors: Sleep, Memory, Cognitive Processes, Brain Hemisphere Functions
Murphy, Charlotte; Dehmelt, Vera; Yonelinas, Andrew P.; Ranganath, Charan; Gruber, Matthias J. – Learning & Memory, 2021
Curiosity states benefit memory for target information, but also incidental information presented during curiosity states. However, it is not known whether incidental curiosity-enhanced memory depends on when incidental information during curiosity states is encountered. Here, participants incidentally encoded unrelated face images at different…
Descriptors: Memory, Cognitive Processes, Incidental Learning, Learning Motivation
Zhang, Mengting; Hupbach, Almut – Learning & Memory, 2020
In a 2014 issue of "Learning & Memory," Reagh and Yassa proposed that repeated encoding leads to semanticization and loss of perceptual detail in memory. We presented object images one or three times and tested recognition of targets and corresponding similar lures. Correct lure rejections after one in comparison to three exposures…
Descriptors: Cognitive Processes, Semantics, Memory, Recognition (Psychology)
Tran, Tammy; Tobin, Kaitlyn E.; Block, Sophia H.; Puliyadi, Vyash; Gallagher, Michela; Bakker, Arnold – Learning & Memory, 2021
There has been considerable focus on investigating age-related memory changes in cognitively healthy older adults, in the absence of neurodegenerative disorders. Previous studies have reported age-related domain-specific changes in older adults, showing increased difficulty encoding and processing object information but minimal to no impairment in…
Descriptors: Aging (Individuals), Comparative Analysis, Cognitive Processes, Self Concept
Zerbes, Gundula; Schwabe, Lars – Learning & Memory, 2019
Successful episodic memory requires binding of event details across spatial and temporal gaps. The neural processes underlying mnemonic binding, however, are not fully understood. Moreover, although acute stress is known to modulate memory, if and how stress changes mnemonic integration across time and space is unknown. To elucidate these issues,…
Descriptors: Spatial Ability, Stress Variables, Cognitive Processes, Memory
Hernandez, John S.; Wainwright, Marcy L.; Mozzachiodi, Riccardo – Learning & Memory, 2017
In "Aplysia," long-term sensitization (LTS) occurs concurrently with a suppression of feeding. At the cellular level, the suppression of feeding is accompanied by decreased excitability of decision-making neuron B51. We examined the contribution of voltage-gated Na[superscript +] and K[superscript +] channels to B51 decreased…
Descriptors: Decision Making, Brain Hemisphere Functions, Animals, Cytology
Merschbaecher, Katja; Hatko, Lucyna; Folz, Jennifer; Mueller, Uli – Learning & Memory, 2016
Acetylation of histones changes the efficiency of the transcription processes and thus contributes to the formation of long-term memory (LTM). In our comparative study, we used two inhibitors to characterize the contribution of different histone acetyl transferases (HATs) to appetitive associative learning in the honeybee. For one we applied…
Descriptors: Inhibition, Long Term Memory, Cognitive Processes, Comparative Analysis
Es-seddiqi, Mouna; El Massioui, Nicole; Samson, Nathalie; Brown, Bruce L.; Doyère, Valérie – Learning & Memory, 2016
The amygdalo-nigrostriatal (ANS) network plays an essential role in enhanced attention to significant events. Interval timing requires attention to temporal cues. We assessed rats having a disconnected ANS network, due to contralateral lesions of the medial central nucleus of the amygdala (CEm) and dopaminergic afferents to the lateral striatum,…
Descriptors: Time, Cues, Animal Behavior, Animals
Zander, Thea; Volz, Kirsten G.; Born, Jan; Diekelmann, Susanne – Learning & Memory, 2017
Sleep fosters the generation of explicit knowledge. Whether sleep also benefits implicit intuitive decisions about underlying patterns is unclear. We examined sleep's role in explicit and intuitive semantic coherence judgments. Participants encoded sets of three words and after a sleep or wake period were required to judge the potential…
Descriptors: Sleep, Semantics, Intuition, Decision Making
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
Kim, Soyun; Borst, Grégoire; Thompson, William L.; Hopkins, Ramona O.; Kosslyn, Stephen M.; Squire, Larry R. – Learning & Memory, 2013
In four experiments, we explored the capacity for spatial mental imagery in patients with hippocampal lesions, using tasks that minimized the role of learning and memory. On all four tasks, patients with hippocampal lesions performed as well as controls. Nonetheless, in separate tests, the patients were impaired at remembering the materials that…
Descriptors: Spatial Ability, Memory, Brain, Injuries
Lapidus, Kyle A. B.; Nwokafor, Chiso; Scott, Daniel; Baroni, Timothy E.; Tenenbaum, Scott A.; Hiroi, Noboru; Singer, Robert H.; Czaplinski, Kevin – Learning & Memory, 2012
To directly address whether regulating mRNA localization can influence animal behavior, we created transgenic mice that conditionally express Zipcode Binding Protein 1 (ZBP1) in a subset of neurons in the brain. ZBP1 is an RNA-binding protein that regulates the localization, as well as translation and stability of target mRNAs in the cytoplasm. We…
Descriptors: Animals, Cocaine, Conditioning, Animal Behavior
Nonkes, Lourens J. P.; van de Vondervoort, Ilse I. G. M.; de Leeuw, Mark J. C.; Wijlaars, Linda P.; Maes, Joseph H. R.; Homberg, Judith R. – Learning & Memory, 2012
Behavioral flexibility is a cognitive process depending on prefrontal areas allowing adaptive responses to environmental changes. Serotonin transporter knockout (5-HTT[superscript -/-]) rodents show improved reversal learning in addition to orbitofrontal cortex changes. Another form of behavioral flexibility, extradimensional strategy set-shifting…
Descriptors: Inhibition, Brain, Cognitive Processes, Animals
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