scholarly journals Word stem completion in young adults, elderly adults, and patients with Alzheimer's disease Evidence from cross-modal priming

2002 ◽  
Vol 17 (4) ◽  
pp. 389-398 ◽  
Author(s):  
P McGeorge
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Young Adults ◽  
Stem Completion ◽  
Elderly Adults ◽  
Word Stem Completion

Functional Changes in Brain Activity During Priming in Alzheimer's Disease

2000 ◽  
Vol 12 (1) ◽  
pp. 134-141 ◽  
Author(s):  
Lars Backman ◽  
Ove Almkvist ◽  
Lars Nyberg ◽  
Jesper Andersson
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Brain Activity ◽  
Occipital Cortex ◽  
Neuronal Population ◽  
Stem Completion ◽  
Initial Stimulus ◽  
Functional Changes ◽  
Positron Emission ◽  
Word Stem Completion

Patients with Alzheimer's disease (AD) are often impaired on certain forms of implicit memory, such as word-stem completion priming (WSCP). Lesion data suggest that deficient WSCP may be associated with abnormal functioning in the posterior neocortex. Using positron emission tomography (PET), we here provide direct support for this view. Compared with normal old adults, AD patients showed reduced priming on a word-stem completion task. The normal old showed decreased activity in right occipital cortex (area 19), whereas the AD patients showed increased activity in this region during priming. To the extent that decreased activity during priming reflects an experience-dependent reduction of the neuronal population involved, these results indicate that shaping of the relevant neurons is slower in AD, possibly as a result of inadequate initial-stimulus processing.

Impaired production priming and intact identification priming in Alzheimer's disease

2001 ◽  
Vol 7 (7) ◽  
pp. 785-794 ◽  
Author(s):  
DEBRA A. FLEISCHMAN ◽  
LAURA A. MONTI ◽  
LISA M. DWORNIK ◽  
TERESA T. MORO ◽  
DAVID A. BENNETT ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Explicit Memory ◽  
Repetition Priming ◽  
Recognition Task ◽  
Naming Task ◽  
Word Naming ◽  
Stem Completion ◽  
Word Stem Completion ◽  
Identification Processes

This study examined the distinction between identification and production processes in repetition priming for 16 patients with Alzheimer's disease (AD) and 16 healthy old control participants (NC). Words were read in three study phases. In three test phases, participants (1) reread studied words, along with unstudied words, in a word-naming task (identification priming); (2) completed 3-letter stems of studied and unstudied words into words in a word-stem completion task (production priming); and (3) answered yes or no to having read studied and unstudied words in a recognition task (explicit memory). Explicit memory and word-stem completion priming were impaired in the AD group compared to the NC group. After correcting for baseline slowing, word-naming priming magnitude did not differ between the groups. The results suggest that the distinction between production and identification processes has promise for explaining the pattern of preservation and failure of repetition priming in AD. (JINS, 2001, 7, 785–794.)

The impact of semantic impairment on word stem completion in Alzheimer's disease

2001 ◽  
Vol 39 (3) ◽  
pp. 302-314 ◽  
Author(s):  
M. Beauregard ◽  
H. Chertkow ◽  
D. Gold ◽  
S. Bergman
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Stem Completion ◽  
Word Stem Completion ◽  
The Impact ◽  
Semantic Impairment

Word-stem completion priming for perceptually and conceptually encoded words in patients with Alzheimer's disease

1997 ◽  
Vol 35 (1) ◽  
pp. 25-35 ◽  
Author(s):  
Debra A Fleischman ◽  
John D.E Gabrieli ◽  
Julie A Rinaldi ◽  
Sheryl L Reminger ◽  
Eliza R Grinnell ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Stem Completion ◽  
Word Stem Completion

Word-stem completion priming in healthy aging and Alzheimer's disease: The effects of age, cognitive status, and encoding.

1999 ◽  
Vol 13 (1) ◽  
pp. 22-30 ◽  
Author(s):  
Debra A. Fleischman ◽  
John D. E. Gabrieli ◽  
David W. Gilley ◽  
Joanna D. Hauser ◽  
Kelly L. Lange ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Healthy Aging ◽  
Cognitive Status ◽  
Stem Completion ◽  
Word Stem Completion

Encoding processes influence word-stem completion priming in Alzheimer's disease: A meta-analysis

2009 ◽  
Vol 32 (5) ◽  
pp. 494-504 ◽  
Author(s):  
Xavier Millet ◽  
Mélanie Le Goff ◽  
Jean Bouisson ◽  
Jean-François Dartigues ◽  
Hélène Amieva
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Meta Analysis ◽  
Stem Completion ◽  
Word Stem Completion

O1-04-06: Elevated cerebrospinal fluid amyloid-Beta42 levels in young adults at genetic risk for early-onset alzheimer's disease

2011 ◽  
Vol 7 ◽  
pp. S102-S103 ◽  
Author(s):  
Eric Reiman ◽  
Carlos Velez-Pardo ◽  
Marelene Jimenez del Rio ◽  
Margarita Giraldo ◽  
Natalia Acosta-Baena ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Cerebrospinal Fluid ◽  
Young Adults ◽  
Genetic Risk ◽  
Early Onset ◽  
Early Onset Alzheimer’S Disease
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