Temporal orientation and cognitive impairment

Temporal orientation is a component of most screening tests for diagnosing cognitive impairment. Correct temporal orientation involves activating both semantic information (concepts of the calendar date) and episodic information (remembering the current date). The aim of this study was to assess the...

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Veröffentlicht in:Revista de neurologiá 2011-03, Vol.52 (6), p.341-348
Hauptverfasser: Fernandez-Turrado, T, Pascual-Millan, L F, Aguilar-Palacio, I, Burriel-Rosello, A, Santolaria-Martinez, L, Perez-Lazaro, C
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container_end_page 348
container_issue 6
container_start_page 341
container_title Revista de neurologiá
container_volume 52
creator Fernandez-Turrado, T
Pascual-Millan, L F
Aguilar-Palacio, I
Burriel-Rosello, A
Santolaria-Martinez, L
Perez-Lazaro, C
description Temporal orientation is a component of most screening tests for diagnosing cognitive impairment. Correct temporal orientation involves activating both semantic information (concepts of the calendar date) and episodic information (remembering the current date). The aim of this study was to assess the diagnostic usefulness of a technique for evaluating temporal orientation, which was open-ended, and scoring the semantic and episodic information thus generated (0-10 points). A total of 24 subjects without impairment, 77 patients with mild cognitive impairment (MCI) and 62 patients with dementia were evaluated by means of a 30-point mini-mental/mini-examination, semantic verbal fluency test, global deterioration scale, mini-mental-type temporal orientation and open-ended temporal orientation tests. The areas under the curve (aROC), sensitivity and specificity for dementia and cognitive impairment at any degree (MCI and dementia) were analysed. Open-ended temporal orientation presented a greater area under the curve (aROC: 0.90) for discrimination between patients with dementia and without dementia (MCI and without impairment) and an aROC of 0.83 for discrimination between patients with MCI or dementia and without impairment. For dementia, with a cut-off point equal to or below 6, sensitivity was 0.96 and specificity was 0.68, and for MCI with dementia, with a cut-off point equal to or below 7, sensitivity was 0.72 and specificity was 0.92. The usefulness, conciseness and strategic position of this technique in examining mental status make it suitable as an instrument for screening for cognitive impairment. It has a high level of sensitivity with low specificity for dementia and low sensitivity with high specificity for any degree of impairment.
doi_str_mv 10.33588/rn.5206.2010361
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source MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects Adult
Aged
Aged, 80 and over
Area Under Curve
Cognition Disorders - diagnosis
Cognition Disorders - physiopathology
Dementia - diagnosis
Dementia - physiopathology
Female
Humans
Male
Memory - physiology
Middle Aged
Neuropsychological Tests - standards
Orientation
Semantics
Sensitivity and Specificity
Time Perception
title Temporal orientation and cognitive impairment
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