La maladie de Parkinson en France (serveur d'exploration)

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Evaluation of visual recognition memory in MCI patients

Identifieur interne : 000622 ( PascalFrancis/Curation ); précédent : 000621; suivant : 000623

Evaluation of visual recognition memory in MCI patients

Auteurs : E. Barbeau [France] ; M. Didic ; E. Tramoni ; O. Felician ; S. Joubert ; A. Sontheimer ; M. Ceccaldi ; M. Poncet

Source :

RBID : Pascal:04-0323084

Descripteurs français

English descriptors

Abstract

Background: Neurofibrillary tangles seen early in Alzheimer disease (AD) initially appear in a subregion of the perirhinal cortex. In the monkey, damage to the perirhinal cortex impairs performance on visual recognition memory tasks. The authors evaluated impairment of visual recognition memory as a potential early diagnostic marker of AD. Methods: The authors developed a visual delayed matching-to-sample task (DMS48) designed to assess visual recognition memory in humans. Twenty-three patients fulfilling the criteria of amnestic mild cognitive impairment (MCI) (mean Mini-Mental State Examination [MMSE]: 26.6, SD = 1.6) were recruited. All underwent a full neuropsychological evaluation, which included the Free and Cued Selective Reminding (FCSR) test. Their performance was compared with that of 10 patients with mild AD, 20 patients with moderate AD, 20 patients with Parkinson disease (PD), and 40 age-matched controls. Results: Control subjects and patients with PD performed close to ceiling. Patients with mild AD had very low scores, while patients with moderate AD answered at random. MCI patients obtained scores that were between those of control subjects and patients with mild AD (78%, SD = 16%). MCI patients who failed on the DMS48 had lower scores on free recall (p < 0.05) and received less benefit from cueing (p < 0.01) on the FCSR than the other MCI, suggesting a profile of genuine memory impairment related to medial temporal lobe lesions. Conclusion: The DMS48, a test of visual recognition memory, is impaired early in the course of patients with MCI. Further studies are necessary to determine whether the evaluation of visual recognition memory may contribute to the identification of patients with AD.
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A08 01  1  ENG  @1 Evaluation of visual recognition memory in MCI patients
A11 01  1    @1 BARBEAU (E.)
A11 02  1    @1 DIDIC (M.)
A11 03  1    @1 TRAMONI (E.)
A11 04  1    @1 FELICIAN (O.)
A11 05  1    @1 JOUBERT (S.)
A11 06  1    @1 SONTHEIMER (A.)
A11 07  1    @1 CECCALDI (M.)
A11 08  1    @1 PONCET (M.)
A14 01      @1 Laboratoire de Neurophysiologie et Neuropsychologie, Inserm EMI-U 9926, Univ. Mediterranee @2 Marseille @3 FRA
A14 02      @1 Service de Neurologie et Neuropsychologie, AP-HM Timone @2 Marseille @3 FRA
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C01 01    ENG  @0 Background: Neurofibrillary tangles seen early in Alzheimer disease (AD) initially appear in a subregion of the perirhinal cortex. In the monkey, damage to the perirhinal cortex impairs performance on visual recognition memory tasks. The authors evaluated impairment of visual recognition memory as a potential early diagnostic marker of AD. Methods: The authors developed a visual delayed matching-to-sample task (DMS48) designed to assess visual recognition memory in humans. Twenty-three patients fulfilling the criteria of amnestic mild cognitive impairment (MCI) (mean Mini-Mental State Examination [MMSE]: 26.6, SD = 1.6) were recruited. All underwent a full neuropsychological evaluation, which included the Free and Cued Selective Reminding (FCSR) test. Their performance was compared with that of 10 patients with mild AD, 20 patients with moderate AD, 20 patients with Parkinson disease (PD), and 40 age-matched controls. Results: Control subjects and patients with PD performed close to ceiling. Patients with mild AD had very low scores, while patients with moderate AD answered at random. MCI patients obtained scores that were between those of control subjects and patients with mild AD (78%, SD = 16%). MCI patients who failed on the DMS48 had lower scores on free recall (p < 0.05) and received less benefit from cueing (p < 0.01) on the FCSR than the other MCI, suggesting a profile of genuine memory impairment related to medial temporal lobe lesions. Conclusion: The DMS48, a test of visual recognition memory, is impaired early in the course of patients with MCI. Further studies are necessary to determine whether the evaluation of visual recognition memory may contribute to the identification of patients with AD.
C02 01  X    @0 002B17
C03 01  X  FRE  @0 Système nerveux pathologie @5 01
C03 01  X  ENG  @0 Nervous system diseases @5 01
C03 01  X  SPA  @0 Sistema nervioso patología @5 01
C03 02  X  FRE  @0 Mémoire visuelle @5 02
C03 02  X  ENG  @0 Visual memory @5 02
C03 02  X  SPA  @0 Memoria visual @5 02
C03 03  X  FRE  @0 Reconnaissance mnémonique @5 03
C03 03  X  ENG  @0 Recognition memory @5 03
C03 03  X  SPA  @0 Reconocimiento mnemónico @5 03
C03 04  X  FRE  @0 Homme @5 05
C03 04  X  ENG  @0 Human @5 05
C03 04  X  SPA  @0 Hombre @5 05
N21       @1 194
N44 01      @1 OTO
N82       @1 OTO

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