Glufosinate ammonium is a commercial herbicide made from a phosphinic acid derivative of glutamate, which leads to a lethal accumulation of ammonia in plants by inhibiting the activity of glutamine synthetase (1). As the use of glufosinate-ammoniumcontaining herbicides has increased, so too has the incidence of acute intoxication through accidental or purposeful (attempted suicide) ingestion of...

BACKGROUND The minimum time interval between administration of oral midazolam and separation of children from their parents that ensures good anterograde amnesia has not been previously determined. This is of particular importance in a busy operating room setting where schedule delays secondary to midazolam administration may not be tolerated. METHODS Children (n = 113) undergoing general ane...

Transient Global Amnesia (TGA) is a dynamic condition. An undefined event causes anterograde amnesia (sometimes with retrograde amnesia) that lasts in a day and preserves of self-identity and of consciousness. Epilepsy, migraine and ischemic events are the possible causes for different hypothesis but still unproven. Sixty three years old woman admitted to emergency department because of amnesia...

Dorsal hippocampal (DH) lesions produce a severe deficit in recently, but not remotely, acquired contextual fear without impairing memory of discrete training stimuli, i.e., DH lesions produce an anterograde and time-limited retrograde amnesia specific to contextual memory. These data are consistent with the standard model which posits temporary involvement of the hippocampus in recent memory m...

Transient global amnesia (TGA) is characterized by anterograde memory disturbance of sudden onset that lasts for 1 to 24 hours. Orientation in space and time is impaired while consciousness remains undisturbed. T r a n s i e n t d i f f u s i o n w e i g h t e d imaging abnormalities involving the hippocampus as wel l as s tressful s i tuations precipitat ing Transient Global Amnesia have been ...

Glossary Alcoholic blackout Amnesia without loss of consciousness, in which the intoxicated person retains the ability to perform certain ‘automatized’ behaviors, without any subsequent memory for the episode. Amnesia A special case of forgetting in which the memory loss is greater than would be expected under ordinary circumstances. Anterograde amnesia affects memory for events occurring after...

Following a neuropathological event, individuals left with moderate-to-severe memory impairment are unable to reliably form new memories. The most common challenges involve the capacity to perform a task in the future and to consciously recall a recent event. Disruption of these memory processes leaves the individual trapped in the present, unable to stay on track, and alienated from ongoing ev...

Assessment of feigned cognitive disorders is an important field of neuropsychology because of its applications to forensic settings. Strategies for detecting malingering in amnesia are available for anterograde amnesia. Less attention has been given to malingering in retrograde amnesia. The case of the 'Smemorato di Collegno' (The Collegno Amnesic) is probably the most famous case of malingered...

A patient had transient memory loss for close family members. She could not even recognise their names as familiar. Her everyday memory was relatively preserved and she retained a clear recollection of the episode. Standard and sleep deprived EEG showed a mild abnormality of the left temporal lobe. Neuropsychological testing found evidence for a mild verbal memory impairment. The findings provi...

This article reviews 147 cases of amnesia following damage including the hippocampus or fornix as reported in 179 publications. The aetiology, mnestic abilities and reference(s) are tabulated for each case. Consistent findings across cases include the association of bilateral hippocampal damage with a deficit in anterograde episodic memory combined with spared procedural and working memory. The...