Results 41 to 50 of about 4,308 (172)

Hypoxia and retrograde amnesia [PDF]

open access: yesPsychonomic Science, 1970
Recent studies have questioned the phenomenon of hypoxia-produced RA on the premise that intracellular hypoxia cannot be produced rapidly enough to prevent the memory-consolidation process., Sixteen albino rats were trained to lever press for sucrose and were subjected to one of four treatments: shock only, hypoxia only, shock plus rapid decompression,
E. H. Galluscio, A. Grant Young
openaire   +1 more source

Amnesia of Uncertain Etiology in an Adolescent during COVID-19 Pandemic: A Case Report

open access: yesCase Reports in Neurology, 2022
Sudden retrograde memory loss, in the absence of neurological causes, is usually referred to as a dissociative symptom. Dissociative amnesia, defined in the DSM-V as an inability to remember important autobiographical experiences, usually of a traumatic ...
Benedetta Basagni   +3 more
doaj   +1 more source

Concept Cells and the Neural Bases of Human Memory

open access: yesActa Physiologica, Volume 242, Issue 6, June 2026.
ABSTRACT Single‐neuron recordings from the medial temporal lobe of patients undergoing epilepsy surgery have revealed “concept cells” that respond selectively and invariantly to meaningful stimuli such as specific people, places, or objects. These responses offer a unique window into how individual neurons encode high‐level, multimodal representations ...
Beatriz S. Arruda, Rodrigo Quian Quiroga
wiley   +1 more source

A Case of Persistent Generalized Retrograde Autobiographical Amnesia Subsequent to the Great East Japan Earthquake in 2011

open access: yesCase Reports in Psychiatry, 2017
Functional retrograde autobiographical amnesia is often associated with physical and/or psychological trauma. On 11 March 2011, the largest earthquake on record in Japan took place, and subsequent huge tsunami devastated the Pacific coast of northern ...
Yuji Odagaki
doaj   +1 more source

Transient epileptic amnesia

open access: yesNeurologijos seminarai, 2018
Transient epileptic amnesia is an adult onset form of temporal epilepsy which is characterised by recurrent acute seizure-induced amnesia often accompanied by ongoing memory disturbances of autobiographical, topographical amnesia and accelerated long ...
J. S. Anužytė   +2 more
doaj   +1 more source

Transient global amnesia as a clinical manifestation of unilateral hippocampal infarction. Case report

open access: yesНеврология, нейропсихиатрия, психосоматика, 2023
Transient global amnesia (TGA) is a rare symptom complex characterized by a brief episode of severe fixation, anterograde and retrograde amnesia. The prevalence of TGA increases with age.
O. O. Martynova, V. V. Zakharov
doaj   +1 more source

What is the level of evidence for the amnestic effects of sedatives in pediatric patients? A systematic review and meta-analyses.

open access: yesPLoS ONE, 2017
BackgroundStudies have suggested that benzodiazepines are amnestic drug par excellence, but when taken together, what level of evidence do they generate? Are other sedatives as amnestic as benzodiazepines? The aim of this study was to assess the level of
Karolline Alves Viana   +6 more
doaj   +1 more source

Co‐pathologies and biological processes beyond amyloid‐beta and tau in people with Alzheimer's disease: Evidence from clinical cohort studies

open access: yesJournal of Internal Medicine, Volume 299, Issue 6, Page 694-710, June 2026.
Abstract Alzheimer's disease (AD) is neuropathologically defined by amyloid‐beta (Aβ) plaques and tau neurofibrillary tangles. However, co‐pathologies and other pathobiological processes are involved in the pathogenesis of AD, contributing to neurodegeneration and clinical symptoms.
Daniel Ferreira   +9 more
wiley   +1 more source

Review: “The Disappointment Dilemma: Short‐ and Long‐Term Learning From Negative Outcomes”

open access: yesEuropean Journal of Neuroscience, Volume 63, Issue 9, May 2026.
The habenula routes negative‐outcome signals to VTA, RMTg, and IPN to shape aversive learning and motivation. The lateral habenula encodes acute negative prediction errors to rapidly adapt behavior to threat, fear, and avoidance. The medial habenula integrates repeated stress, drug, and aversive experiences into long‐term negative mood and expectations.
Ines Ibañez‐Tallon   +4 more
wiley   +1 more source

Memory consolidation from seconds to weeks: A three-stage neural network model with autonomous reinstatement dynamics

open access: yesFrontiers in Computational Neuroscience, 2014
Declarative long-term memories are not created at an instant. Gradual stabilization and temporally shifting dependence of acquired declarative memories on different brain regions - called systems consolidation - can be tracked in time by lesion ...
Florian eFiebig   +3 more
doaj   +1 more source

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