Perilesional and homotopic area activation during proverb comprehension after stroke

Yi, You Gyoung; Kim, Dae Yul; Shim, Woo Hyun; Oh, Joo Young; Kim, Ho Sung; Jung, Minji

doi:10.1002/brb3.1202

Cited by 3 publications

(1 citation statement)

References 39 publications

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“…Recovery from stroke often depends on the recovery of functionally impaired perilesional areas (Furlan, Marchal, Viader, Derlon, & Baron, 1996;Yi et al, 2019). Even with a decrease in right hemispheric attentional dominance, the incidence of left hemispatial neglect is more common with aging, and this age difference may be related to decreases in the ability of the perilesional areas to mediate the functions of the injured hemisphere.…”

Section: Discussionmentioning

confidence: 99%

Improved Accuracy on Lateralized Spatial Judgments in Healthy Aging

Murphy

Lamb

Schwartz

et al. 2019

J Int Neuropsychol Soc

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Objectives:Healthy young adults often demonstrate a leftward spatial bias called “pseudoneglect” which often diminishes with aging. One hypothesis for this phenomenon is an age-related deterioration in right hemisphere functions (right hemi-aging). If true, then a greater rightward bias should be evident on all spatial attention tasks regardless of content. Another hypothesis is a decrease in asymmetrical hemispheric activation with age (HAROLD). If true, older participants may show reduced bias in all spatial tasks, regardless of leftward or rightward biasing of specific spatial content.Methods:Seventy right-handed healthy participants, 33 younger (21–40) and 37 older (60–78), were asked to bisect solid and character-letter lines as well as to perform left and right trisections of solid lines.Results:Both groups deviated toward the left on solid line bisections and left trisections. Both groups deviated toward the right on right trisections and character line bisections. In all tasks, the older participants were more accurate than the younger participants.Conclusions:The finding that older participants were more accurate than younger participants across all bisection and trisection conditions suggests a decrease in the asymmetrical hemispheric activation of these specialized networks important in the allocation of contralateral spatial attention or spatial action intention.

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Section: Discussionmentioning

confidence: 99%

Improved Accuracy on Lateralized Spatial Judgments in Healthy Aging

Murphy

Lamb

Schwartz

et al. 2019

J Int Neuropsychol Soc

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Perilesional and contralesional brain activations related to associative encoding of unfamiliar face-names pairs in adults with left chronic stroke with or without ischemic infarct on left inferior frontal gyrus

Batista

Bazán

Martin

et al. 2023

Cortex

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Dynamic alterations of spontaneous neural activity in post-stroke aphasia: a resting-state functional magnetic resonance imaging study

Hong-chun

Sun

et al. 2023

Front. Neurosci.

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Background and purposeThe dynamic alterations in spontaneous neural activity of the brain during the acute phase of post-stroke aphasia (PSA) remain unclear. Therefore, in this study, dynamic amplitude of low-frequency fluctuation (dALFF) was applied to explore abnormal temporal variability in local functional activity of the brain during acute PSA.Materials and methodsResting-state functional magnetic resonance imaging (rs-fMRI) data from 26 patients with PSA and 25 healthy controls (HCs) were acquired. The sliding window method was used to assess dALFF, with the k-means clustering method used to identify dALFF states. The two-sample t-test was applied to compare differences in dALFF variability and state metrics between the PSA and HC groups.Results(1) In the PSA group, greater variance of dALFF in the cerebellar network (CBN) and left fronto-temporo-parietal network (FTPN) was observed. (2) Three dALFF states were identified among all subjects. States 1 and 2 were identified in the PSA patients, and the two dALFF states shared a similar proportion. Moreover, the number of transitions between the two dALFF states was higher in the patients compared with that in HCs.ConclusionThe results of this study provide valuable insights into brain dysfunction that occurs during the acute phase (6.00 ± 3.52 days) of PSA. The observed increase in variability of local functional activities in CBN and left FTPN may be related to the spontaneous functional recovery of language during acute PSA, and it also suggests that cerebellum plays an important role in language.

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Perilesional and homotopic area activation during proverb comprehension after stroke

Cited by 3 publications

References 39 publications

Improved Accuracy on Lateralized Spatial Judgments in Healthy Aging

Improved Accuracy on Lateralized Spatial Judgments in Healthy Aging

Perilesional and contralesional brain activations related to associative encoding of unfamiliar face-names pairs in adults with left chronic stroke with or without ischemic infarct on left inferior frontal gyrus

Dynamic alterations of spontaneous neural activity in post-stroke aphasia: a resting-state functional magnetic resonance imaging study

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