Deficits in narrative discourse elicited by visual stimuli are already present in patients with Mild Cognitive Impairment
Language batteries used to assess the skills of elderly individuals, such as naming and semantic verbal fluency, present some limitations in differentiating healthy controls from patients with amnestic mild cognitive impairment (a-MCI). Deficits in narrative discourse occur early in dementia caused...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2015-05-01
|
| Series: | Frontiers in Aging Neuroscience |
| Subjects: | |
| Online Access: | http://journal.frontiersin.org/Journal/10.3389/fnagi.2015.00096/full |
| _version_ | 1811270420098187264 |
|---|---|
| author | Cláudia eDrummond Cláudia eDrummond Cláudia eDrummond Gabriel eCoutinho Gabriel eCoutinho Rochele ePaz Fonseca Naima eAssunção Alina eTeldeschi Ricardo ede Oliveira-Souza Jorge eMoll Fernanda eTovar-Moll Fernanda eTovar-Moll Paulo eMattos Paulo eMattos Paulo eMattos |
| author_facet | Cláudia eDrummond Cláudia eDrummond Cláudia eDrummond Gabriel eCoutinho Gabriel eCoutinho Rochele ePaz Fonseca Naima eAssunção Alina eTeldeschi Ricardo ede Oliveira-Souza Jorge eMoll Fernanda eTovar-Moll Fernanda eTovar-Moll Paulo eMattos Paulo eMattos Paulo eMattos |
| author_sort | Cláudia eDrummond |
| collection | DOAJ |
| description | Language batteries used to assess the skills of elderly individuals, such as naming and semantic verbal fluency, present some limitations in differentiating healthy controls from patients with amnestic mild cognitive impairment (a-MCI). Deficits in narrative discourse occur early in dementia caused by Alzheimer’s disease (AD), and the narrative discourse abilities of a-MCI patients are poorly documented. The present study sought to propose and evaluate parameters for investigating narrative discourse in these populations. After a pilot study of 30 healthy subjects who served as a preliminary investigation of macro- and microlinguistic aspects, 77 individuals (patients with AD and a-MCI and a control group) were evaluated. The experimental task required the participants to narrate a story based on a sequence of actions visually presented. The Control and AD groups differed in all parameters except narrative time and the total number of words recalled. The a-MCI group displayed mild discursive difficulties that were characterized as an intermediate stage between the Control and AD groups’ performances. The a-MCI and Control groups differed from the AD group with respect to global coherence, discourse type and referential cohesion. The a-MCI and AD groups were similar to one another but differed from the Control group with respect to the type of words recalled, the repetition of words in the same sentence, the narrative structure and the inclusion of irrelevant propositions in the narrative. The narrative parameter that best distinguished the three groups was the speech effectiveness index. The proposed task was able to reveal differences between healthy controls and groups with cognitive decline. According to our findings, patients with a-MCI already present narrative deficits that are characterized by mild discursive difficulties that are less severe than those found in patients with AD. |
| first_indexed | 2024-04-12T22:00:30Z |
| format | Article |
| id | doaj.art-5e9347bdc3ea4bc89d32038a07c295dd |
| institution | Directory Open Access Journal |
| issn | 1663-4365 |
| language | English |
| last_indexed | 2024-04-12T22:00:30Z |
| publishDate | 2015-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Aging Neuroscience |
| spelling | doaj.art-5e9347bdc3ea4bc89d32038a07c295dd2022-12-22T03:15:07ZengFrontiers Media S.A.Frontiers in Aging Neuroscience1663-43652015-05-01710.3389/fnagi.2015.00096132309Deficits in narrative discourse elicited by visual stimuli are already present in patients with Mild Cognitive ImpairmentCláudia eDrummond0Cláudia eDrummond1Cláudia eDrummond2Gabriel eCoutinho3Gabriel eCoutinho4Rochele ePaz Fonseca5Naima eAssunção6Alina eTeldeschi7Ricardo ede Oliveira-Souza8Jorge eMoll9Fernanda eTovar-Moll10Fernanda eTovar-Moll11Paulo eMattos12Paulo eMattos13Paulo eMattos14D'Or Institute for Research and Education (IDOR)FEDERAL UNIVERSITY OF RIO DE JANEIROFEDERAL UNIVERSITY OF RIO DE JANEIROFEDERAL UNIVERSITY OF RIO DE JANEIROD'Or Institute for Research and Education (IDOR)PONTIFICIAL CATHOLIC UNIVERSITY OF RIO GRANDE DO SUL (PUCRS)D'Or Institute for Research and Education (IDOR)D'Or Institute for Research and Education (IDOR)D'Or Institute for Research and Education (IDOR)D'Or Institute for Research and Education (IDOR)FEDERAL UNIVERSITY OF RIO DE JANEIROD'Or Institute for Research and Education (IDOR)FEDERAL UNIVERSITY OF RIO DE JANEIROD'Or Institute for Research and Education (IDOR)FEDERAL UNIVERSITY OF RIO DE JANEIROLanguage batteries used to assess the skills of elderly individuals, such as naming and semantic verbal fluency, present some limitations in differentiating healthy controls from patients with amnestic mild cognitive impairment (a-MCI). Deficits in narrative discourse occur early in dementia caused by Alzheimer’s disease (AD), and the narrative discourse abilities of a-MCI patients are poorly documented. The present study sought to propose and evaluate parameters for investigating narrative discourse in these populations. After a pilot study of 30 healthy subjects who served as a preliminary investigation of macro- and microlinguistic aspects, 77 individuals (patients with AD and a-MCI and a control group) were evaluated. The experimental task required the participants to narrate a story based on a sequence of actions visually presented. The Control and AD groups differed in all parameters except narrative time and the total number of words recalled. The a-MCI group displayed mild discursive difficulties that were characterized as an intermediate stage between the Control and AD groups’ performances. The a-MCI and Control groups differed from the AD group with respect to global coherence, discourse type and referential cohesion. The a-MCI and AD groups were similar to one another but differed from the Control group with respect to the type of words recalled, the repetition of words in the same sentence, the narrative structure and the inclusion of irrelevant propositions in the narrative. The narrative parameter that best distinguished the three groups was the speech effectiveness index. The proposed task was able to reveal differences between healthy controls and groups with cognitive decline. According to our findings, patients with a-MCI already present narrative deficits that are characterized by mild discursive difficulties that are less severe than those found in patients with AD.http://journal.frontiersin.org/Journal/10.3389/fnagi.2015.00096/fullAgingAlzheimer DiseaseLanguage DisordersMild Cognitive ImpairmentNarrative discourse |
| spellingShingle | Cláudia eDrummond Cláudia eDrummond Cláudia eDrummond Gabriel eCoutinho Gabriel eCoutinho Rochele ePaz Fonseca Naima eAssunção Alina eTeldeschi Ricardo ede Oliveira-Souza Jorge eMoll Fernanda eTovar-Moll Fernanda eTovar-Moll Paulo eMattos Paulo eMattos Paulo eMattos Deficits in narrative discourse elicited by visual stimuli are already present in patients with Mild Cognitive Impairment Frontiers in Aging Neuroscience Aging Alzheimer Disease Language Disorders Mild Cognitive Impairment Narrative discourse |
| title | Deficits in narrative discourse elicited by visual stimuli are already present in patients with Mild Cognitive Impairment |
| title_full | Deficits in narrative discourse elicited by visual stimuli are already present in patients with Mild Cognitive Impairment |
| title_fullStr | Deficits in narrative discourse elicited by visual stimuli are already present in patients with Mild Cognitive Impairment |
| title_full_unstemmed | Deficits in narrative discourse elicited by visual stimuli are already present in patients with Mild Cognitive Impairment |
| title_short | Deficits in narrative discourse elicited by visual stimuli are already present in patients with Mild Cognitive Impairment |
| title_sort | deficits in narrative discourse elicited by visual stimuli are already present in patients with mild cognitive impairment |
| topic | Aging Alzheimer Disease Language Disorders Mild Cognitive Impairment Narrative discourse |
| url | http://journal.frontiersin.org/Journal/10.3389/fnagi.2015.00096/full |
| work_keys_str_mv | AT claudiaedrummond deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT claudiaedrummond deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT claudiaedrummond deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT gabrielecoutinho deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT gabrielecoutinho deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT rocheleepazfonseca deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT naimaeassuncao deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT alinaeteldeschi deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT ricardoedeoliveirasouza deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT jorgeemoll deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT fernandaetovarmoll deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT fernandaetovarmoll deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT pauloemattos deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT pauloemattos deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment AT pauloemattos deficitsinnarrativediscourseelicitedbyvisualstimuliarealreadypresentinpatientswithmildcognitiveimpairment |