Older adults compensate for switch, but not mixing costs, relative to younger adults on an intrinsically cued task switching experiment.
Introduction: Aging negatively impacts the ability to rapidly and successfully switch between two or more tasks that have different rules or objectives. However, previous work has shown that the context impacts the extent of this age-related impairment: while there is relative age-related invariance...
| Publicado en: | Frontiers in Aging Neuroscience pp. 1 - 15 |
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| Autores principales: | , , , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Frontiers Media S.A.
2023
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=163506617&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 163506617 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 16634365 BG2U jtl: Frontiers in Aging Neuroscience issn: 16634365 maglogo: N pubinfo: dt: 2023 pid: 40038 pub: Frontiers Media S.A. artinfo: ui: 163506617 163506617 163506617 10.3389/fnagi.2023.1152582 163506617 ppf: 1 ppct: 14 formats: tig: atl: Older adults compensate for switch, but not mixing costs, relative to younger adults on an intrinsically cued task switching experiment. aug: au: Eich, Teal S. Langfield, Christopher Sakhardande, Jayant Gazes, Yunglin Habeck, Christian Stern, Yaakov affil: Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, United States sug: subj: Task Performance and Analysis In Adulthood Task Performance and Analysis In Old Age Psychomotor Performance Age Factors Funding Source Human Descriptive Statistics Data Analysis Software Aging Cognition Memory, Short Term Analysis of Variance Repeated Measures Scales Male Female Young Adult Adult Middle Age Aged Aged, 80 and Over Adult: 19-44 years Middle Aged: 45-64 years Aged: 65+ years Aged, 80 & over Male Female ab: Introduction: Aging negatively impacts the ability to rapidly and successfully switch between two or more tasks that have different rules or objectives. However, previous work has shown that the context impacts the extent of this age-related impairment: while there is relative age-related invariance when participants must rapidly switch back and forth between two simple tasks (often called "switch costs"), age-related differences emerge when the contexts changes from one in which only one task must be performed to one in which multiple tasks must be performed, but a trial-level switch is not required (e.g., task repeat trials within dual task blocks, often called "mixing costs"). Here, we explored these two kinds of costs behaviorally, and also investigated the neural correlates of these effects. Methods: Seventy-one younger adults and 175 older adults completed a taskswitching experiment while they underwent fMRI brain imaging. We investigated the impact of age on behavioral performance and neural activity considering two types of potential costs: switch costs (dual-task switch trials minus dual-task nonswitch trials), and mixing costs (dual-task non-switch minus single-task trials). Results: We replicated previous behavioral findings, with greater age associated with mixing, but not switch costs. Neurally, we found age-related compensatory activations for switch costs in the dorsal lateral prefrontal cortex, pars opercularis, superior temporal gyrus, and the posterior and anterior cingulate, but agerelated under recruitment for mixing costs in fronto-parietal areas including the supramarginal gyrus and pre and supplemental motor areas. Discussion: These results suggest an age-based dissociation between executive components that contribute to task switching. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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