Results 11 to 20 of about 12,700 (209)

Psychogenic amnesia: syndromes, outcome, and patterns of retrograde amnesia [PDF]

open access: yesBrain, 2017
There are very few case series of patients with acute psychogenic memory loss (also known as dissociative/functional amnesia), and still fewer studies of outcome, or comparisons with neurological memory-disordered patients. Consequently, the literature on psychogenic amnesia is somewhat fragmented and offers little prognostic value for individual ...
Kate Humphreys   +10 more
openaire   +6 more sources

Retrograde Amnesia in LGI1 and CASPR2 Limbic Encephalitis: Two Case Reports and a Systematic Literature Review. [PDF]

open access: yesEur J Neurol
ABSTRACT Background Both anterograde and retrograde amnesia can typically co‐occur in limbic autoimmune encephalitis (LAE), including the forms associated with antibodies to CASPR2/LGI1, two protein complexed with the voltage‐gated potassium channel (VGKC).
Antonio M   +13 more
europepmc   +2 more sources

Hippocampal Lesions in Male Rats Produce Retrograde Memory Loss for Over-Trained Spatial Memory but Do Not Impact Appetitive-Contextual Memory: Implications for Theories of Memory Organization in the Mammalian Brain. [PDF]

open access: yesJ Neurosci Res
A general summary of the experimental design and results of the present experiments. ABSTRACT Evidence suggests that hippocampal (HPC) disruption following learning produces retrograde amnesia on a range of tasks. Many of these tasks do not require HPC function in the anterograde direction suggesting that, in the intact brain, the HPC is actively ...
Hong NS   +11 more
europepmc   +2 more sources

Retrograde amnesia for semantic information in Alzheimer's disease [PDF]

open access: yes, 2005
Patients with mild to moderate Alzheimer's disease and normal controls were tested on a retrograde amnesia test with semantic content (Neologism and Vocabulary Test, or NVT), consisting of neologisms to be defined. Patients showed a decrement as compared
Kollen, A., Meeter, M., Scheltens, P.
core   +3 more sources

Retrograde amnesia for facts and events: Findings from four new cases [PDF]

open access: yes, 1998
Two patients with presumed hippocampal formation lesions and two patients with more extensive temporal lobe damage, all of whom became amnesic in a known year, were given tests of anterograde and retrograde memory function.
Jonathan M. Reed, Larry R. Squire
core   +1 more source

Psychological factors in retrograde amnesia: self-deception and a broken heart [PDF]

open access: yes, 2008
We explored potential contributing psychological factors in a patient (‘XF’) with focal retrograde amnesia, within the framework proposed by Kopelman (2000). In particular, we investigated the psychological trait of self-enhancement.
Baird, Amee D, McKay, Ryan T
core   +1 more source

A mathematical model of forgetting and amnesia

open access: yesFrontiers in Psychology, 2013
We describe a mathematical model of learning and memory and apply it to the dynamics of forgetting and amnesia. The model is based on the hypothesis that the neural systems involved in memory at different time-scales share two fundamental properties: (1)
Jaap M. J. Murre   +4 more
doaj   +1 more source

Socially Transmitted Food Preference (STFP) Task Protocol

open access: yesBio-Protocol, 2012
Temporally-graded retrograde amnesia (TGRA) refers to a phenomenon of premorbid memory loss whereby information acquired recently is more impaired than information acquired more remotely. Studies of human amnesia have illuminated this phenomenon (Hodges,
Robert Clark
doaj   +1 more source

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,
A. Grant Young, E. H. Galluscio
openaire   +2 more sources

Dynamics of Hippocampal and Cortical Activation during Consolidation of a Nonspatial Memory [PDF]

open access: yes, 2006
Observations of temporally graded retrograde amnesia after hippocampal damage suggest that the hippocampal region plays a critical, time-limited role in memory consolidation.
Eichenbaum, Howard, Ross, Robert S.
core   +3 more sources

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