Alzheimer patients show a sensitivity decrement over time on a tonic alertness task

M Brazzelli; G Cocchini; S Della Sala; H Spinnler

doi:10.1080/01688639408402698

Alzheimer patients show a sensitivity decrement over time on a tonic alertness task

M Brazzelli
, G Cocchini
, S Della Sala
, H Spinnler

School of Philosophy, Psychology and Language Sciences

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

Abstract

Tonic alertness was investigated in Alzheimer patients and normal elderly subjects. Sensitivity and criterion shifts were investigated across 45 min of continuous testing using a high event rate test with very low target probability. Alzheimer patients showed a significant sensitivity decrement over time that was unrelated to dementia severity. These results suggest that tonic alertness is impaired by Alzheimer's disease even in its early stages.

Original language	English
Pages (from-to)	851-60
Number of pages	10
Journal	Journal of Clinical and Experimental Neuropsychology
Volume	16
Issue number	6
DOIs	https://doi.org/10.1080/01688639408402698
Publication status	Published - 1994

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10.1080/01688639408402698

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title = "Alzheimer patients show a sensitivity decrement over time on a tonic alertness task",

abstract = "Tonic alertness was investigated in Alzheimer patients and normal elderly subjects. Sensitivity and criterion shifts were investigated across 45 min of continuous testing using a high event rate test with very low target probability. Alzheimer patients showed a significant sensitivity decrement over time that was unrelated to dementia severity. These results suggest that tonic alertness is impaired by Alzheimer's disease even in its early stages.",

author = "M Brazzelli and G Cocchini and \{Della Sala\}, S and H Spinnler",

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AB - Tonic alertness was investigated in Alzheimer patients and normal elderly subjects. Sensitivity and criterion shifts were investigated across 45 min of continuous testing using a high event rate test with very low target probability. Alzheimer patients showed a significant sensitivity decrement over time that was unrelated to dementia severity. These results suggest that tonic alertness is impaired by Alzheimer's disease even in its early stages.

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DO - 10.1080/01688639408402698

M3 - Article

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SN - 1380-3395

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EP - 860

JO - Journal of Clinical and Experimental Neuropsychology

JF - Journal of Clinical and Experimental Neuropsychology

IS - 6

ER -

Alzheimer patients show a sensitivity decrement over time on a tonic alertness task

Abstract

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