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614 Aktuelle Fachpublikationen in Learning & Memory

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Spared perception of object geometry and object components after hippocampal damage [BRIEF COMMUNICATIONS]

01.07.2018 | Zhisen J. Urgolites; Daniel A. Levy; Ramona O. Hopkins; Larry R. Squire, Learning & Memory, 2018

We tested the proposal that medial temporal lobe (MTL) structures support not just memory but also high-level object perception. In one task, participants decided whether a line drawing could represent an object in three-dimensional space and, in another task, they saw the components of an object ...

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Cued fear memory generalization increases over time [RESEARCH]

01.07.2018 | Gabrielle A. Pollack; Jessica L. Bezek; Serena H. Lee; Miranda J. Scarlata; Leah T. Weingast; Hadley C. Bergstrom, Learning & Memory, 2018

Fear memory is a highly stable and durable form of memory, even over vast (remote) time frames. Nevertheless, some elements of fear memory can be forgotten, resulting in generalization. The purpose of this study is to determine how cued fear memory generalizes over time and measure underlying ...

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Properties of visual episodic memory following repeated encounters with objects [RESEARCH]

01.07.2018 | Mark W. Schurgin; Jonathan I. Flombaum, Learning & Memory, 2018

A person sees an object once, and then seconds, minutes, hours, days, or weeks later, she sees it again. How is the person's visual memory for that object changed, improved, or degraded by the second encounter, compared to a situation in which she will have only seen the object once? The answer ...

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T-type calcium channels in the orbitofrontal cortex mediate sensory integration as measured using a spontaneous oddity task in rats [RESEARCH]

01.07.2018 | Wendie N. Marks; Madeline E. Parker; Nadine K. Zabder; Quentin Greba; Terrance P. Snutch; John G. Howland, Learning & Memory, 2018

The roles of low-voltage-activated (T-type) calcium channels in brain diseases have been studied extensively. Less is known regarding the involvement of T-type channels in cognition and behavior. Sensory integration (SI) is a cognitive process whereby the brain uses unimodal or multimodal sensory ...

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Differential development of retroactive and proactive interference during post-learning wakefulness [BRIEF COMMUNICATIONS]

01.07.2018 | Timothy P. Brawn; Howard C. Nusbaum; Daniel Margoliash, Learning & Memory, 2018

Newly encoded, labile memories are prone to disruption during post-learning wakefulness. Here we examine the contributions of retroactive and proactive interference to daytime forgetting on an auditory classification task in a songbird. While both types of interference impair performance, they do ...

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Reinforcement signaling of punishment versus relief in fruit flies [RESEARCH]

01.06.2018 | Christian König; Afshin Khalili; Mathangi Ganesan; Amrita P. Nishu; Alejandra P. Garza; Thomas Niewalda; Bertram Ger ..., Learning & Memory, 2018

Painful events establish opponent memories: cues that precede pain are remembered negatively, whereas cues that follow pain, thus coinciding with relief are recalled positively. How do individual reinforcement-signaling neurons contribute to this "timing-dependent valence-reversal?" We addressed ...

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Dissociable contributions of the amygdala to the immediate and delayed effects of emotional arousal on memory [RESEARCH]

01.06.2018 | Dirk Schümann; Tobias Sommer, Learning & Memory, 2018

Emotional arousal enhances memory encoding and consolidation leading to better immediate and delayed memory. Although the central noradrenergic system and the amygdala play critical roles in both effects of emotional arousal, we have recently shown that these effects are at least partly ...

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Dissociable contributions of the amygdala to the immediate and delayed effects of emotional arousal on memory [RESEARCH]

01.06.2018 | Dirk Schümann; Tobias Sommer, Learning & Memory, 2018

Emotional arousal enhances memory encoding and consolidation leading to better immediate and delayed memory. Although the central noradrenergic system and the amygdala play critical roles in both effects of emotional arousal, we have recently shown that these effects are at least partly ...

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A complex mTOR response in habituation paradigms for a social signal in adult songbirds [RESEARCH]

01.06.2018 | Somayeh Ahmadiantehrani; Elisa O. Gores; Sarah E. London, Learning & Memory, 2018

Nonassociative learning is considered simple because it depends on presentation of a single stimulus, but it likely reflects complex molecular signaling. To advance understanding of the molecular mechanisms of one form of nonassociative learning, habituation, for ethologically relevant signals we ...

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Development of mnemonic discrimination during childhood [BRIEF COMMUNICATIONS]

01.06.2018 | Leslie Rollins; Elizabeth B. Cloude, Learning & Memory, 2018

The present study examined mnemonic discrimination in 5- and 6-yr-old children, 8- and 9-yr-old children, 11- and 12-yr-old children, and young adults. Participants incidentally encoded pictorial stimuli and subsequently judged whether targets (i.e., repeated stimuli), lures (i.e., mnemonically ...

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