Implicit and explicit memory following anterior communicating artery aneurysm rupture.
Several tasks examined the status of implicit and explicit memory in three patients with a ruptured anterior communicating artery (ACoA) aneurysm, one patient with bilateral temporal lobe damage sustained from herpes encephalitis (HE), 12 Alzheimer's disease (AD) patients, and 16 elderly normal controls demographically matched to the AD patients. All subjects completed word stem-completion repetition priming, pursuit-rotor tracking, and a fragmented pictures test, followed by explicit memory tests. ACoA, HE, and AD patients were impaired on all explicit tests. HE and AD patients were impaired on stem-completion priming, but were intact on other implicit tests. ACoA patients were intact on all implicit tests given. Discussion of these results considers similarities and differences in extent of basal forebrain and temporal lobe damage.
Psychology Service (116B), Department of Veterans Affairs Medical Center, San Diego, CA 92161.
M W
MW
Bondi
A W
AW
Kaszniak
S Z
SZ
Rapcsak
M A
MA
Butters
D000328:Adult; D000544:Alzheimer Disease / Q000150:complications / Q000503:physiopathology*; D001921:Brain / Q000502:physiology / Q000503:physiopathology*; D001927:Brain Diseases / Q000150:complications / Q000503:physiopathology*; D004660:Encephalitis / Q000150:complications / Q000382:microbiology / Q000503:physiopathology*; D005260:Female; D006561:Herpes Simplex / Q000382:microbiology*; D006801:Humans; D002532:Intracranial Aneurysm / Q000503:physiopathology*; D007806:Language Disorders / Q000209:etiology / Q000503:physiopathology; D007858:Learning; D008297:Male; D008569:Memory Disorders / Q000209:etiology / Q000503:physiopathology*; D008875:Middle Aged; D009048:Motor Skills; D011386:Projective Techniques; D012660:Semantics; D013702:Temporal Lobe / Q000503:physiopathology*; D014796:Visual Perception