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Haitas N, Dubuc J, Massé-Leblanc C, Chamberland V, Amiri M, Glatard T, Wilson M, Joanette Y, Steffener J. Registered report: Age-preserved semantic memory and the CRUNCH effect manifested as differential semantic control networks: An fMRI study. PLoS One 2024; 19:e0289384. [PMID: 38917084 PMCID: PMC11198863 DOI: 10.1371/journal.pone.0289384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 03/25/2024] [Indexed: 06/27/2024] Open
Abstract
Semantic memory representations are generally well maintained in aging, whereas semantic control is thought to be more affected. To explain this phenomenon, this study tested the predictions of the Compensation-Related Utilization of Neural Circuits Hypothesis (CRUNCH), focusing on task demands in aging as a possible framework. The CRUNCH effect would manifest itself in semantic tasks through a compensatory increase in neural activation in semantic control network regions but only up to a certain threshold of task demands. This study compares 39 younger (20-35 years old) with 39 older participants (60-75 years old) in a triad-based semantic judgment task performed in an fMRI scanner while manipulating task demand levels (low versus high) through semantic distance. In line with the CRUNCH predictions, differences in neurofunctional activation and behavioral performance (accuracy and response times) were expected in younger versus older participants in the low- versus high-demand conditions, which should be manifested in semantic control Regions of Interest (ROIs). Our older participants had intact behavioral performance, as proposed in the literature for semantic memory tasks (maintained accuracy and slower response times (RTs)). Age-invariant behavioral performance in the older group compared to the younger one is necessary to test the CRUNCH predictions. The older adults were also characterized by high cognitive reserve, as our neuropsychological tests showed. Our behavioral results confirmed that our task successfully manipulated task demands: error rates, RTs and perceived difficulty increased with increasing task demands in both age groups. We did not find an interaction between age group and task demand, or a statistically significant difference in activation between the low- and high-demand conditions for either RTs or accuracy. As for brain activation, we did not find the expected age group by task demand interaction, or a significant main effect of task demand. Overall, our results are compatible with some neural activation in the semantic network and the semantic control network, largely in frontotemporoparietal regions. ROI analyses demonstrated significant effects (but no interactions) of task demand in the left and right inferior frontal gyrus, the left posterior middle temporal gyrus, the posterior inferior temporal gyrus and the prefrontal gyrus. Overall, our test did not confirm the CRUNCH predictions.
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Affiliation(s)
- Niobe Haitas
- Laboratory of Communication and Aging, Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Jade Dubuc
- Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | | | - Vincent Chamberland
- Faculty of Arts and Sciences, Université de Montréal, Montreal, Quebec, Canada
| | - Mahnoush Amiri
- Laboratory of Communication and Aging, Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada
| | - Tristan Glatard
- Department of Computer Science and Software Engineering, Concordia University, Montreal, Quebec, Canada
| | - Maximiliano Wilson
- Centre de Recherche CERVO – CIUSSS de la Capitale-Nationale et Département de Réadaptation, Université Laval, Quebec City, Quebec, Canada
| | - Yves Joanette
- Laboratory of Communication and Aging, Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, Université de Montréal, Montreal, Quebec, Canada
| | - Jason Steffener
- Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
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2
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Lin L, Wu Y, Liu L, Sun S, Wu S. Understanding the Temporal Dynamics of Accelerated Brain Aging and Resilient Brain Aging: Insights from Discriminative Event-Based Analysis of UK Biobank Data. Bioengineering (Basel) 2024; 11:647. [PMID: 39061729 PMCID: PMC11273398 DOI: 10.3390/bioengineering11070647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/14/2024] [Accepted: 06/21/2024] [Indexed: 07/28/2024] Open
Abstract
The intricate dynamics of brain aging, especially the neurodegenerative mechanisms driving accelerated (ABA) and resilient brain aging (RBA), are pivotal in neuroscience. Understanding the temporal dynamics of these phenotypes is crucial for identifying vulnerabilities to cognitive decline and neurodegenerative diseases. Currently, there is a lack of comprehensive understanding of the temporal dynamics and neuroimaging biomarkers linked to ABA and RBA. This study addressed this gap by utilizing a large-scale UK Biobank (UKB) cohort, with the aim to elucidate brain aging heterogeneity and establish the foundation for targeted interventions. Employing Lasso regression on multimodal neuroimaging data, structural MRI (sMRI), diffusion MRI (dMRI), and resting-state functional MRI (rsfMRI), we predicted the brain age and classified individuals into ABA and RBA cohorts. Our findings identified 1949 subjects (6.2%) as representative of the ABA subpopulation and 3203 subjects (10.1%) as representative of the RBA subpopulation. Additionally, the Discriminative Event-Based Model (DEBM) was applied to estimate the sequence of biomarker changes across aging trajectories. Our analysis unveiled distinct central ordering patterns between the ABA and RBA cohorts, with profound implications for understanding cognitive decline and vulnerability to neurodegenerative disorders. Specifically, the ABA cohort exhibited early degeneration in four functional networks and two cognitive domains, with cortical thinning initially observed in the right hemisphere, followed by the temporal lobe. In contrast, the RBA cohort demonstrated initial degeneration in the three functional networks, with cortical thinning predominantly in the left hemisphere and white matter microstructural degeneration occurring at more advanced stages. The detailed aging progression timeline constructed through our DEBM analysis positioned subjects according to their estimated stage of aging, offering a nuanced view of the aging brain's alterations. This study holds promise for the development of targeted interventions aimed at mitigating age-related cognitive decline.
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Affiliation(s)
- Lan Lin
- Department of Biomedical Engineering, College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China; (Y.W.); (L.L.); (S.W.)
| | - Yutong Wu
- Department of Biomedical Engineering, College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China; (Y.W.); (L.L.); (S.W.)
| | - Lingyu Liu
- Department of Biomedical Engineering, College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China; (Y.W.); (L.L.); (S.W.)
| | - Shen Sun
- Intelligent Physiological Measurement and Clinical Translation, Beijing International Base for Scientific and Technological Cooperation, Beijing University of Technology, Beijing 100124, China
| | - Shuicai Wu
- Department of Biomedical Engineering, College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China; (Y.W.); (L.L.); (S.W.)
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3
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Krethlow G, Fargier R, Atanasova T, Ménétré E, Laganaro M. Asynchronous behavioral and neurophysiological changes in word production in the adult lifespan. Cereb Cortex 2024; 34:bhae187. [PMID: 38715409 PMCID: PMC11077060 DOI: 10.1093/cercor/bhae187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 04/05/2024] [Accepted: 04/18/2024] [Indexed: 05/12/2024] Open
Abstract
Behavioral and brain-related changes in word production have been claimed to predominantly occur after 70 years of age. Most studies investigating age-related changes in adulthood only compared young to older adults, failing to determine whether neural processes underlying word production change at an earlier age than observed in behavior. This study aims to fill this gap by investigating whether changes in neurophysiological processes underlying word production are aligned with behavioral changes. Behavior and the electrophysiological event-related potential patterns of word production were assessed during a picture naming task in 95 participants across five adult lifespan age groups (ranging from 16 to 80 years old). While behavioral performance decreased starting from 70 years of age, significant neurophysiological changes were present at the age of 40 years old, in a time window (between 150 and 220 ms) likely associated with lexical-semantic processes underlying referential word production. These results show that neurophysiological modifications precede the behavioral changes in language production; they can be interpreted in line with the suggestion that the lexical-semantic reorganization in mid-adulthood influences the maintenance of language skills longer than for other cognitive functions.
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Affiliation(s)
- Giulia Krethlow
- Faculty of Psychology and Educational Sciences, University of Geneva, Bd du Pont d’Arve 40, 1205, Geneva, Switzerland
| | | | - Tanja Atanasova
- Faculty of Psychology and Educational Sciences, University of Geneva, Bd du Pont d’Arve 40, 1205, Geneva, Switzerland
| | - Eric Ménétré
- Faculty of Psychology and Educational Sciences, University of Geneva, Bd du Pont d’Arve 40, 1205, Geneva, Switzerland
| | - Marina Laganaro
- Faculty of Psychology and Educational Sciences, University of Geneva, Bd du Pont d’Arve 40, 1205, Geneva, Switzerland
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Moisseinen N, Särkämö T, Kauramäki J, Kleber B, Sihvonen AJ, Martínez-Molina N. Differential effects of ageing on the neural processing of speech and singing production. Front Aging Neurosci 2023; 15:1236971. [PMID: 37731954 PMCID: PMC10507273 DOI: 10.3389/fnagi.2023.1236971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/21/2023] [Indexed: 09/22/2023] Open
Abstract
Background Understanding healthy brain ageing has become vital as populations are ageing rapidly and age-related brain diseases are becoming more common. In normal brain ageing, speech processing undergoes functional reorganisation involving reductions of hemispheric asymmetry and overactivation in the prefrontal regions. However, little is known about how these changes generalise to other vocal production, such as singing, and how they are affected by associated cognitive demands. Methods The present cross-sectional fMRI study systematically maps the neural correlates of vocal production across adulthood (N=100, age 21-88 years) using a balanced 2x3 design where tasks varied in modality (speech: proverbs / singing: song phrases) and cognitive demand (repetition / completion from memory / improvisation). Results In speech production, ageing was associated with decreased left pre- and postcentral activation across tasks and increased bilateral angular and right inferior temporal and fusiform activation in the improvisation task. In singing production, ageing was associated with increased activation in medial and bilateral prefrontal and parietal regions in the completion task, whereas other tasks showed no ageing effects. Direct comparisons between the modalities showed larger age-related activation changes in speech than singing across tasks, including a larger left-to-right shift in lateral prefrontal regions in the improvisation task. Conclusion The present results suggest that the brains' singing network undergoes differential functional reorganisation in normal ageing compared to the speech network, particularly during a task with high executive demand. These findings are relevant for understanding the effects of ageing on vocal production as well as how singing can support communication in healthy ageing and neurological rehabilitation.
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Affiliation(s)
- Nella Moisseinen
- Cognitive Brain Research Unit, Department of Psychology and Logopedics, Faculty of Medicine, Centre of Excellence in Music, Mind, Body and the Brain, University of Helsinki, Helsinki, Finland
| | - Teppo Särkämö
- Cognitive Brain Research Unit, Department of Psychology and Logopedics, Faculty of Medicine, Centre of Excellence in Music, Mind, Body and the Brain, University of Helsinki, Helsinki, Finland
| | - Jaakko Kauramäki
- Cognitive Brain Research Unit, Department of Psychology and Logopedics, Faculty of Medicine, Centre of Excellence in Music, Mind, Body and the Brain, University of Helsinki, Helsinki, Finland
| | - Boris Kleber
- Centre for Music in the Brain, Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Aleksi J. Sihvonen
- Cognitive Brain Research Unit, Department of Psychology and Logopedics, Faculty of Medicine, Centre of Excellence in Music, Mind, Body and the Brain, University of Helsinki, Helsinki, Finland
- School of Health and Rehabilitation Sciences, Centre for Clinical Research, University of Queensland, Brisbane, QLD, Australia
- Department of Neurology, Helsinki University Hospital, Helsinki, Finland
| | - Noelia Martínez-Molina
- Cognitive Brain Research Unit, Department of Psychology and Logopedics, Faculty of Medicine, Centre of Excellence in Music, Mind, Body and the Brain, University of Helsinki, Helsinki, Finland
- Department of Information and Communication Technologies, Centre for Brain and Cognition, University Pompeu Fabra, Barcelona, Spain
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5
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Lee YS, Rogers CS, Grossman M, Wingfield A, Peelle JE. Hemispheric dissociations in regions supporting auditory sentence comprehension in older adults. AGING BRAIN 2022; 2:100051. [PMID: 36908889 PMCID: PMC9997128 DOI: 10.1016/j.nbas.2022.100051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/21/2022] Open
Abstract
We investigated how the aging brain copes with acoustic and syntactic challenges during spoken language comprehension. Thirty-eight healthy adults aged 54 - 80 years (M = 66 years) participated in an fMRI experiment wherein listeners indicated the gender of an agent in short spoken sentences that varied in syntactic complexity (object-relative vs subject-relative center-embedded clause structures) and acoustic richness (high vs low spectral detail, but all intelligible). We found widespread activity throughout a bilateral frontotemporal network during successful sentence comprehension. Consistent with prior reports, bilateral inferior frontal gyrus and left posterior superior temporal gyrus were more active in response to object-relative sentences than to subject-relative sentences. Moreover, several regions were significantly correlated with individual differences in task performance: Activity in right frontoparietal cortex and left cerebellum (Crus I & II) showed a negative correlation with overall comprehension. By contrast, left frontotemporal areas and right cerebellum (Lobule VII) showed a negative correlation with accuracy specifically for syntactically complex sentences. In addition, laterality analyses confirmed a lack of hemispheric lateralization in activity evoked by sentence stimuli in older adults. Importantly, we found different hemispheric roles, with a left-lateralized core language network supporting syntactic operations, and right-hemisphere regions coming into play to aid in general cognitive demands during spoken sentence processing. Together our findings support the view that high levels of language comprehension in older adults are maintained by a close interplay between a core left hemisphere language network and additional neural resources in the contralateral hemisphere.
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Affiliation(s)
- Yune Sang Lee
- Department of Speech, Language, and Hearing, School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Chad S. Rogers
- Department of Psychology, Union College, Schenectady, NY, USA
| | - Murray Grossman
- Department of Neurology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Jonathan E. Peelle
- Department of Otolaryngology, Washington University in St. Louis, St. Louis, MO, USA
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De Looze C, Dehsarvi A, Suleyman N, Crosby L, Hernández B, Coen RF, Lawlor BA, Reilly RB. Structural Correlates of Overt Sentence Reading in Mild Cognitive Impairment and Mild-to-Moderate Alzheimer's Disease. Curr Alzheimer Res 2022; 19:606-617. [PMID: 35929622 DOI: 10.2174/1567205019666220805110248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/15/2022] [Accepted: 06/22/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND Overt sentence reading in mild cognitive impairment (MCI) and mild-tomoderate Alzheimer's disease (AD) has been associated with slowness of speech, characterized by a higher number of pauses, shorter speech units and slower speech rate and attributed to reduced working memory/ attention and language capacity. OBJECTIVE This preliminary case-control study investigates whether the temporal organization of speech is associated with the volume of brain regions involved in overt sentence reading and explores the discriminative ability of temporal speech parameters and standard volumetric MRI measures for the classification of MCI and AD. METHODS Individuals with MCI, mild-to-moderate AD, and healthy controls (HC) had a structural MRI scan and read aloud sentences varying in cognitive-linguistic demand (length). The association between speech features and regional brain volumes was examined by linear mixed-effect modeling. Genetic programming was used to explore the discriminative ability of temporal and MRI features. RESULTS Longer sentences, slower speech rate, and a higher number of pauses and shorter interpausal units were associated with reduced volumes of the reading network. Speech-based classifiers performed similarly to the MRI-based classifiers for MCI-HC (67% vs. 68%) and slightly better for AD-HC (80% vs. 64%) and AD-MCI (82% vs. 59%). Adding the speech features to the MRI features slightly improved the performance of MRI-based classification for AD-HC and MCI-HC but not HC-MCI. CONCLUSION The temporal organization of speech in overt sentence reading reflects underlying volume reductions. It may represent a sensitive marker for early assessment of structural changes and cognitive- linguistic deficits associated with healthy aging, MCI, and AD.
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Affiliation(s)
- Céline De Looze
- Trinity Centre for Biomedical Engineering, School of Engineering, Trinity College Dublin, Dublin, Ireland.,Department of Gerontology, The Irish Longitudinal Study on Aging, Trinity College Dublin, Dublin, Ireland
| | - Amir Dehsarvi
- Trinity Centre for Biomedical Engineering, School of Engineering, Trinity College Dublin, Dublin, Ireland
| | - Narin Suleyman
- Trinity Centre for Biomedical Engineering, School of Engineering, Trinity College Dublin, Dublin, Ireland
| | - Lisa Crosby
- Mercer's Institute for Successful Aging, St James's Hospital, Dublin, Ireland
| | - Belinda Hernández
- Department of Gerontology, The Irish Longitudinal Study on Aging, Trinity College Dublin, Dublin, Ireland
| | - Robert F Coen
- Mercer's Institute for Successful Aging, St James's Hospital, Dublin, Ireland
| | - Brian A Lawlor
- Mercer's Institute for Successful Aging, St James's Hospital, Dublin, Ireland.,Institute of Neuroscience, School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Richard B Reilly
- Trinity Centre for Biomedical Engineering, School of Engineering, Trinity College Dublin, Dublin, Ireland.,Institute of Neuroscience, School of Medicine, Trinity College Dublin, Dublin, Ireland
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Drucker JH, Epstein CM, McGregor KM, Hortman K, Gopinath KS, Crosson B. Reduced Interference and Serial Dependency Effects for Naming in Older but Not Younger Adults after 1 Hz rTMS of Right Pars Triangularis. NEUROBIOLOGY OF LANGUAGE (CAMBRIDGE, MASS.) 2022; 3:256-271. [PMID: 37215557 PMCID: PMC10158568 DOI: 10.1162/nol_a_00063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 11/25/2021] [Indexed: 05/24/2023]
Abstract
1 Hz repetitive transcranial magnetic stimulation (rTMS) was used to decrease excitability of right pars triangularis (R PTr) to determine whether increased R PTr activity during picture naming in older adults hampers word finding. We hypothesized that decreasing R PTr excitability would reduce interference with word finding, facilitating faster picture naming. 15 older and 16 younger adults received two rTMS sessions. In one, speech onset latencies for picture naming were measured after both sham and active R PTr stimulation. In the other session, sham and active stimulation of a control region, right pars opercularis (R POp), were administered before picture naming. Order of active vs. sham stimulation within session was counterbalanced. Younger adults showed no significant effects of stimulation. In older adults, a trend indicated that participants named pictures more quickly after active than sham R PTr stimulation. However, older adults also showed longer responses during R PTr than R POp sham stimulation. When order of active vs. sham stimulation was modeled, older adults receiving active stimulation first had significantly faster responding after active than sham R PTr stimulation and significantly faster responding after R PTr than R POp stimulation, consistent with experimental hypotheses. However, older adults receiving sham stimulation first showed no significant differences between conditions. Findings are best understood, based on previous studies, when the interaction between the excitatory effects of picture naming and the inhibitory effects of 1 Hz rTMS on R PTr is considered. Implications regarding right frontal activity in older adults and for design of future experiments are discussed.
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Affiliation(s)
- Jonathan H. Drucker
- VA Rehabilitation Research & Development Center for Visual and Neurocognitive Rehabilitation, Decatur, GA, USA
- Department of Neurology, Emory University, Atlanta, GA, USA
- Aptima, Inc., Woburn, MA, USA
| | | | - Keith M. McGregor
- VA Rehabilitation Research & Development Center for Visual and Neurocognitive Rehabilitation, Decatur, GA, USA
- Department of Neurology, Emory University, Atlanta, GA, USA
| | - Kyle Hortman
- VA Rehabilitation Research & Development Center for Visual and Neurocognitive Rehabilitation, Decatur, GA, USA
| | | | - Bruce Crosson
- VA Rehabilitation Research & Development Center for Visual and Neurocognitive Rehabilitation, Decatur, GA, USA
- Department of Neurology, Emory University, Atlanta, GA, USA
- Department of Psychology, Georgia State University, Atlanta, GA, USA
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Yegla B, Joshi S, Strupp J, Parikh V. Dynamic interplay of frontoparietal cholinergic innervation and cortical reorganization in the regulation of attentional capacities in aging. Neurobiol Aging 2021; 105:186-198. [PMID: 34102380 PMCID: PMC8338743 DOI: 10.1016/j.neurobiolaging.2021.04.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 04/09/2021] [Accepted: 04/27/2021] [Indexed: 01/21/2023]
Abstract
Cortical remodeling is linked to age-related cognitive changes in humans; however, the mechanisms underlying cortical reorganization in aging remain unknown. Here we examined the consequences of mild cholinergic thinning of the prefrontal cortex (PFC) and parietal cortex (PC) on attention performance-associated changes in cortical activity in young and aged rats. Prefrontal manipulation produced attentional deficits in aged but not young rats regardless of cholinergic pruning. Stereological assessment of c-fos expression revealed age-related reductions in occipital activity and a corresponding increase in PC activity, but these patterns did not correlate with performance. PC cholinergic deafferentation produced opposite changes in PFC recruitment between young and aged rats. Cholinergic pruning reversed the effects of PFC/PC cholinergic manipulations on the activity of CaMKII- and GAD-positive neurons in aged rats. Our results indicate that cortical shifts depend on multiple factors including chronological age, cholinergic changes, and cortical insult, and that cortical reorganization is not necessarily compensatory. Moreover, the cholinergic system modulates excitation/inhibition homeostasis to improve the efficiency of reorganized cortical circuits and stabilize attentional performance.
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Affiliation(s)
- Brittney Yegla
- Department of Psychology and Neuroscience Program, Temple University, Philadelphia, PA, USA
| | - Surbhi Joshi
- Department of Psychology and Neuroscience Program, Temple University, Philadelphia, PA, USA
| | - Jacob Strupp
- Department of Psychology and Neuroscience Program, Temple University, Philadelphia, PA, USA
| | - Vinay Parikh
- Department of Psychology and Neuroscience Program, Temple University, Philadelphia, PA, USA.
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9
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Haitas N, Amiri M, Wilson M, Joanette Y, Steffener J. Age-preserved semantic memory and the CRUNCH effect manifested as differential semantic control networks: An fMRI study. PLoS One 2021; 16:e0249948. [PMID: 34129605 PMCID: PMC8205163 DOI: 10.1371/journal.pone.0249948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 03/26/2021] [Indexed: 11/18/2022] Open
Abstract
Semantic memory representations are overall well-maintained in aging whereas semantic control is thought to be more affected. To explain this phenomenon, this study aims to test the predictions of the Compensation Related Utilization of Neural Circuits Hypothesis (CRUNCH) focusing on task demands in aging as a possible framework. The CRUNCH effect would manifest itself in semantic tasks through a compensatory increase in neural activation in semantic control network regions but only up to a certain threshold of task demands. This study will compare 40 young (20-35 years old) with 40 older participants (60-75 years old) in a triad-based semantic judgment task performed in an fMRI scanner while manipulating levels of task demands (low vs. high) through semantic distance. In line with the CRUNCH predictions, differences in neurofunctional activation and behavioral performance (accuracy and response times) are expected in young vs. old participants in the low- vs. high-demand conditions manifested in semantic control Regions of Interest.
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Affiliation(s)
- Niobe Haitas
- Laboratory of Communication and Aging, Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada
| | - Mahnoush Amiri
- Laboratory of Communication and Aging, Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada
| | - Maximiliano Wilson
- Centre de Recherche CERVO – CIUSSS de la Capitale-Nationale et Département de Réadaptation, Université Laval, Quebec City, Quebec, Canada
| | - Yves Joanette
- Laboratory of Communication and Aging, Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada
- Faculty of Medicine, University of Montreal, Montreal, Quebec, Canada
| | - Jason Steffener
- Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
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10
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Macoir J, Hudon C. Expected performance of Quebec-French older adults on the Batterie Rapide de Dénomination (BARD). APPLIED NEUROPSYCHOLOGY-ADULT 2019; 28:583-587. [PMID: 31544520 DOI: 10.1080/23279095.2019.1668791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Difficulties retrieving words during conversations, called anomia, are frequent in the late preclinical stage of Alzheimer's disease, in mild cognitive impairment, and in major neurocognitive disorders. Picture-naming tests, used to assess anomia, are too lengthy and are unsuitable for medical or nursing practices. The main objective of this study was to confirm the usefulness of the Batterie Rapide de Dénomination (BARD - Battery of Rapid Denomination), an electronically-administered picture-naming test comprising 10 pictures for which perfect naming scores were obtained in French, English and Flemish participants. In this study, the BARD was applied on 207 healthy, French-speaking participants from Quebec, aged 50 years and more, wherein the results demonstrated the ease of naming the 10 pictures of the test. However, their performance was not always flawless. Seven out of the 207 participants of produced one error on one specific picture, which led us to excluding this item from the BARD. Thus, this study established the utility of the BARD for clinical settings of French-Quebec populations. This screening test is ideally suited for bedside assessment in acute care settings, stroke units and medical environments providing primary and secondary care. Its use has the potential for improving referrals to more specialized resources.
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Affiliation(s)
- Joël Macoir
- Département de Réadaptation, Faculté de Médecine, Université Laval, Québec, QC, Canada.,Centre de Recherche CERVO - Brain Research Centre, Québec, QC, Canada
| | - Carol Hudon
- Centre de Recherche CERVO - Brain Research Centre, Québec, QC, Canada.,École de Psychologie, Université Laval, Québec, QC, Canada
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11
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Hoyau E, Roux-Sibilon A, Boudiaf N, Pichat C, Cousin E, Krainik A, Jaillard A, Peyrin C, Baciu M. Aging modulates fronto-temporal cortical interactions during lexical production. A dynamic causal modeling study. BRAIN AND LANGUAGE 2018; 184:11-19. [PMID: 29913316 DOI: 10.1016/j.bandl.2018.06.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 05/20/2018] [Accepted: 06/10/2018] [Indexed: 05/12/2023]
Abstract
In this dynamic causal modeling (DCM) study, we evaluated the effect of age on the effective connectivity of a cerebral network involved in lexical production. Younger and older adults performed an object naming task during fMRI. The DCM was used to explore the interactions between four regions of interest: the occipital cortex, OC; the lateral temporal cortex, LTC; the medial temporal cortex, MTC; and the inferior frontal cortex, IFC. We mainly focused on the modulation of the fronto-temporal interaction, according to the hypothesis that aging requires strategies that modulate the access to the semantic knowledge, either through a neural reserve mechanism (increased MTC-LTC connectivity) or through a neural compensation mechanism (supplementary IFC-MTC connectivity). For younger adults, our results indicated a bi-directional interaction between the left IFC and LTC suggesting a typical activation related to lexico-semantic representations. For older adults, our results reveal the existence of bi-directional interaction between the IFC and MTC, but not between the IFC and LTC - which in turn suggests that older adults adapt a new strategy, via supplemental access to conceptual access and semantic retrieval processes. This neural compensation strategy would be facilitated by a top-down mechanism from the IFC to the MTC. We discuss our results in the context of the possible additional strategies used by older compared to younger adults, to retrieve and produce words.
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Affiliation(s)
- E Hoyau
- Univ. Grenoble Alpes, CNRS, LPNC UMR 5105, F-38000 Grenoble, France
| | - A Roux-Sibilon
- Univ. Grenoble Alpes, CNRS, LPNC UMR 5105, F-38000 Grenoble, France
| | - N Boudiaf
- Univ. Grenoble Alpes, CNRS, LPNC UMR 5105, F-38000 Grenoble, France
| | - C Pichat
- Univ. Grenoble Alpes, CNRS, LPNC UMR 5105, F-38000 Grenoble, France
| | - E Cousin
- Univ. Grenoble Alpes, CNRS, LPNC UMR 5105, F-38000 Grenoble, France; Univ. Grenoble Alpes, UMS IRMaGe CHU Grenoble, F-38000 Grenoble, France
| | - A Krainik
- Univ. Grenoble Alpes, UMS IRMaGe CHU Grenoble, F-38000 Grenoble, France; Univ. Grenoble Alpes, GIN, F-38000, Grenoble, France
| | - A Jaillard
- Univ. Grenoble Alpes, UMS IRMaGe CHU Grenoble, F-38000 Grenoble, France
| | - C Peyrin
- Univ. Grenoble Alpes, CNRS, LPNC UMR 5105, F-38000 Grenoble, France
| | - M Baciu
- Univ. Grenoble Alpes, CNRS, LPNC UMR 5105, F-38000 Grenoble, France.
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Ramanoël S, Hoyau E, Kauffmann L, Renard F, Pichat C, Boudiaf N, Krainik A, Jaillard A, Baciu M. Gray Matter Volume and Cognitive Performance During Normal Aging. A Voxel-Based Morphometry Study. Front Aging Neurosci 2018; 10:235. [PMID: 30123123 PMCID: PMC6085481 DOI: 10.3389/fnagi.2018.00235] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 07/18/2018] [Indexed: 12/21/2022] Open
Abstract
Normal aging is characterized by decline in cognitive functioning in conjunction with extensive gray matter (GM) atrophy. A first aim of this study was to determine GM volume differences related to aging by comparing two groups of participants, middle-aged group (MAG, mean age 41 years, N = 16) and older adults (OG, mean age 71 years, N = 14) who underwent an magnetic resonance images (MRI) voxel-based morphometry (VBM) evaluation. The VBM analyses included two optimized pipelines, for the cortex and for the cerebellum. Participants were also evaluated on a wide range of cognitive tests assessing both domain-general and language-specific processes, in order to examine how GM volume differences between OG and MAG relate to cognitive performance. Our results show smaller bilateral GM volume in the OG relative to the MAG, in several cerebral and right cerebellar regions involved in language and executive functions. Importantly, our results also revealed smaller GM volume in the right cerebellum in OG relative to MAG, supporting the idea of a complex cognitive role for this structure. This study provides a broad picture of cerebral, but also cerebellar and cognitive changes associated with normal aging.
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Affiliation(s)
- Stephen Ramanoël
- INSERM/CNRS, Institut Vision, Sorbonne University, Pierre and Marie Curie Universities (UPMC) Paris 06, Paris, France
| | - Elena Hoyau
- CNRS LPNC UMR 5105, University of Grenoble Alpes, Grenoble, France
| | - Louise Kauffmann
- CNRS LPNC UMR 5105, University of Grenoble Alpes, Grenoble, France
- CNRS, Grenoble INP, GIPSA-lab, University of Grenoble Alpes, Grenoble, France
| | - Félix Renard
- UMS IRMaGe Grenoble Hospital, University of Grenoble Alpes, Grenoble, France
| | - Cédric Pichat
- CNRS LPNC UMR 5105, University of Grenoble Alpes, Grenoble, France
| | - Naïla Boudiaf
- CNRS LPNC UMR 5105, University of Grenoble Alpes, Grenoble, France
| | - Alexandre Krainik
- UMS IRMaGe Grenoble Hospital, University of Grenoble Alpes, Grenoble, France
- Grenoble Institute of Neuroscience, University of Grenoble Alpes, Grenoble, France
| | - Assia Jaillard
- UMS IRMaGe Grenoble Hospital, University of Grenoble Alpes, Grenoble, France
| | - Monica Baciu
- CNRS LPNC UMR 5105, University of Grenoble Alpes, Grenoble, France
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13
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Methqal I, Pinsard B, Amiri M, Wilson MA, Monchi O, Provost JS, Joanette Y. Age-Related Brain Activation Changes during Rule Repetition in Word-Matching. Front Hum Neurosci 2017; 11:543. [PMID: 29180957 PMCID: PMC5693847 DOI: 10.3389/fnhum.2017.00543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 10/24/2017] [Indexed: 11/13/2022] Open
Abstract
Objective: The purpose of this study was to explore the age-related brain activation changes during a word-matching semantic-category-based task, which required either repeating or changing a semantic rule to be applied. In order to do so, a word-semantic rule-based task was adapted from the Wisconsin Sorting Card Test, involving the repeated feedback-driven selection of given pairs of words based on semantic category-based criteria. Method: Forty healthy adults (20 younger and 20 older) performed a word-matching task while undergoing a fMRI scan in which they were required to pair a target word with another word from a group of three words. The required pairing is based on three word-pair semantic rules which correspond to different levels of semantic control demands: functional relatedness, moderately typical-relatedness (which were considered as low control demands), and atypical-relatedness (high control demands). The sorting period consisted of a continuous execution of the same sorting rule and an inferred trial-by-trial feedback was given. Results: Behavioral performance revealed increases in response times and decreases of correct responses according to the level of semantic control demands (functional vs. typical vs. atypical) for both age groups (younger and older) reflecting graded differences in the repetition of the application of a given semantic rule. Neuroimaging findings of significant brain activation showed two main results: (1) Greater task-related activation changes for the repetition of the application of atypical rules relative to typical and functional rules, and (2) Changes (older > younger) in the inferior prefrontal regions for functional rules and more extensive and bilateral activations for typical and atypical rules. Regarding the inter-semantic rules comparison, only task-related activation differences were observed for functional > typical (e.g., inferior parietal and temporal regions bilaterally) and atypical > typical (e.g., prefrontal, inferior parietal, posterior temporal, and subcortical regions). Conclusion: These results suggest that healthy cognitive aging relies on the adaptive changes of inferior prefrontal resources involved in the repetitive execution of semantic rules, thus reflecting graded differences in support of task demands.
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Affiliation(s)
- Ikram Methqal
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada.,Faculty of Medicine, University of Montreal, Montreal, QC, Canada
| | - Basile Pinsard
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada
| | - Mahnoush Amiri
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada
| | - Maximiliano A Wilson
- Centre de Recherche CERVO - CIUSSS de la Capitale-Nationale et Département de Réadaptation, Université Laval, Québec, QC, Canada
| | - Oury Monchi
- Department of Clinical Neurosciences, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Jean-Sebastien Provost
- Department of Clinical Neurosciences, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Yves Joanette
- Centre de Recherche de l'Institut Universitaire de Gériatrie de Montréal, Montreal, QC, Canada.,Faculty of Medicine, University of Montreal, Montreal, QC, Canada
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