نتایج جستجو برای: declarative memory

تعداد نتایج: 266614  

2017
Klaus Oberauer

Starting from the premise that working memory is a system for providing access to representations for complex cognition, six requirements for a working memory system are delineated: (1) maintaining structural representations by dynamic bindings, (2) manipulating structural representations, (3) flexible reconfiguration, (4) partial decoupling from long-term memory, (5) controlled retrieval from ...

2017
Daisuke Miyamoto Daichi Hirai Masanori Murayama

Sleep plays important roles in sensory and motor memory consolidation. Sleep oscillations, reflecting neural population activity, involve the reactivation of learning-related neurons and regulate synaptic strength and, thereby affect memory consolidation. Among sleep oscillations, slow waves (0.5-4 Hz) are closely associated with memory consolidation. For example, slow-wave power is regulated i...

Journal: :Neurobiology of learning and memory 2006
E Sherwood Brown Laura Beard Alan B Frol A John Rush

Corticosteroids are essential for life and an integral part of the stress response. However, in excess, corticosteroids can be associated with a variety of effects on the brain including hippocampal atrophy and even neuronal death, mood changes, and declarative memory impairment. The magnitude of mood change in patients receiving prednisone is reportedly associated with previous lifetime cortic...

Journal: :Hippocampus 2002
Guillén Fernández Peter Klaver Jürgen Fell Thomas Grunwald Christian E Elger

The medial temporal lobe (MTL) is the core structure of the declarative memory system, but which specific operation is performed by anatomically defined MTL substructures? One hypothesis proposes that the hippocampus carries out an exclusively mnemonic operation during declarative memory formation that is insensitive to content, whereas the rhinal cortex carries out an operation supporting memo...

2016
D. P. Lippelt S. van der Kint K. van Herk M. Naber

Choline is a dietary component and precursor of acetylcholine, a crucial neurotransmitter for memory-related brain functions. In two double-blind, placebo-controlled cross-over experiments, we investigated whether the food supplement choline bitartrate improved declarative memory and working memory in healthy, young students one to two hours after supplementation. In experiment 1, 28 participan...

Journal: :Psychoneuroendocrinology 2012
Katja Wingenfeld Martin Driessen Kirsten Terfehr Nicole Schlosser Silvia Carvalho Fernando Christian Otte Thomas Beblo Carsten Spitzer Bernd Löwe Oliver Tobias Wolf

BACKGROUND In the present study, we aimed to compare the effect of exogenous cortisol on memory retrieval in posttraumatic stress disorder (PTSD) with the effects in healthy controls. In healthy participants, administration of cortisol impairs declarative memory retrieval. Only a few studies have investigated these effects in PTSD yielding mixed results. METHODS In a placebo-controlled crosso...

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