Cognitive estimation in patients with Alzheimer's disease

Felicia C. Goldstein; Joanne Green; Robyn M. Presley; Judith Rosemary O'Jile; Alan Freeman; Ray Watts; Robert C. Green

Cognitive estimation in patients with Alzheimer's disease

Felicia C. Goldstein, Joanne Green, Robyn M. Presley, Judith Rosemary O'Jile, Alan Freeman, Ray Watts, Robert C. Green

Research output: Contribution to journal › Article › peer-review

Abstract

Cognitive estimation was evaluated in patients with mild to moderate Alzheimer's disease (AD). In Experiment I, 25 AD patients and 16 normal controls generated estimates of real-world events. AD patients provided more extreme judgments than controls. Experiment II explored whether impaired word-finding contributed to the AD deficit by having subjects choose the 'best' answer to estimation questions. New samples of 14 AD patients and 12 normal controls were compared. AD patients selected the target responses less often than controls. These findings indicate that cognitive estimation is impaired in Alzheimer's disease. The potential contribution of semantic memory to cognitive estimation is discussed.

Original language	English
Pages (from-to)	35-42
Number of pages	8
Journal	Neuropsychiatry, Neuropsychology and Behavioral Neurology
Volume	9
Issue number	1
State	Published - 1 Jan 1996

Keywords

Alzheimer's disease
Cognitive estimation
Semantic memory

Cite this

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AU - Green, Joanne

AU - Presley, Robyn M.

AU - O'Jile, Judith Rosemary

AU - Freeman, Alan

AU - Watts, Ray

AU - Green, Robert C.

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N2 - Cognitive estimation was evaluated in patients with mild to moderate Alzheimer's disease (AD). In Experiment I, 25 AD patients and 16 normal controls generated estimates of real-world events. AD patients provided more extreme judgments than controls. Experiment II explored whether impaired word-finding contributed to the AD deficit by having subjects choose the 'best' answer to estimation questions. New samples of 14 AD patients and 12 normal controls were compared. AD patients selected the target responses less often than controls. These findings indicate that cognitive estimation is impaired in Alzheimer's disease. The potential contribution of semantic memory to cognitive estimation is discussed.

AB - Cognitive estimation was evaluated in patients with mild to moderate Alzheimer's disease (AD). In Experiment I, 25 AD patients and 16 normal controls generated estimates of real-world events. AD patients provided more extreme judgments than controls. Experiment II explored whether impaired word-finding contributed to the AD deficit by having subjects choose the 'best' answer to estimation questions. New samples of 14 AD patients and 12 normal controls were compared. AD patients selected the target responses less often than controls. These findings indicate that cognitive estimation is impaired in Alzheimer's disease. The potential contribution of semantic memory to cognitive estimation is discussed.

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KW - Cognitive estimation

KW - Semantic memory

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JF - Neuropsychiatry, Neuropsychology and Behavioral Neurology

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Cognitive estimation in patients with Alzheimer's disease

Abstract

Keywords

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