Altered recruitment of the attention network is associated with disability and cognitive impairment in pediatric patients with acquired brain injury

Sandra Strazzer, Maria A. Rocca, Erika Molteni, Ermelinda De Meo, Monica Recla, Paola Valsasina, Filippo Arrigoni, Susanna Galbiati, Alessandra Bardoni, Massimo Filippi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We assessed abnormalities of brain functional magnetic resonance imaging (fMRI) activity during a sustained attention task (Conners' Continuous Performance Test (CCPT)) in 20 right-handed pediatric acquired brain injury (ABI) patients versus 7 right-handed age-matched healthy controls, and we estimated the correlation of such abnormalities with clinical and cognitive deficits. Patients underwent the Wechsler Intelligence Scale for Children (WISC), Wisconsin Card Sorting Test, and Functional Independence Measure (FIM) evaluations. During fMRI, patients and controls activated regions of the attention network. Compared to controls, ABI patients experienced a decreased average fMRI recruitment of the left cerebellum and a decreased deactivation of the left anterior cingulate cortex. With increasing task demand, compared to controls, ABI patients had an impaired ability to increase the recruitment of several posterior regions of the attention network. They also experienced a greater activation of frontal regions, which was correlated with worse performance on FIM, WISC, and fMRI CCPT. Such abnormal brain recruitment was significantly influenced by the type of lesion (focal versus diffuse axonal injury) and time elapsed from the event. Pediatric ABI patients experienced an inability to optimize attention network recruitment, especially when task difficulty was increased, which likely contributes to their clinical and cognitive deficits.

Original languageEnglish
Article number104282
JournalNeural Plasticity
Volume2015
DOIs
Publication statusPublished - 2015

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Brain Injuries
Pediatrics
Magnetic Resonance Imaging
Wechsler Scales
Intelligence
Diffuse Axonal Injury
Aptitude
Gyrus Cinguli
Brain
Cerebellum
Cognitive Dysfunction

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

Cite this

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title = "Altered recruitment of the attention network is associated with disability and cognitive impairment in pediatric patients with acquired brain injury",
abstract = "We assessed abnormalities of brain functional magnetic resonance imaging (fMRI) activity during a sustained attention task (Conners' Continuous Performance Test (CCPT)) in 20 right-handed pediatric acquired brain injury (ABI) patients versus 7 right-handed age-matched healthy controls, and we estimated the correlation of such abnormalities with clinical and cognitive deficits. Patients underwent the Wechsler Intelligence Scale for Children (WISC), Wisconsin Card Sorting Test, and Functional Independence Measure (FIM) evaluations. During fMRI, patients and controls activated regions of the attention network. Compared to controls, ABI patients experienced a decreased average fMRI recruitment of the left cerebellum and a decreased deactivation of the left anterior cingulate cortex. With increasing task demand, compared to controls, ABI patients had an impaired ability to increase the recruitment of several posterior regions of the attention network. They also experienced a greater activation of frontal regions, which was correlated with worse performance on FIM, WISC, and fMRI CCPT. Such abnormal brain recruitment was significantly influenced by the type of lesion (focal versus diffuse axonal injury) and time elapsed from the event. Pediatric ABI patients experienced an inability to optimize attention network recruitment, especially when task difficulty was increased, which likely contributes to their clinical and cognitive deficits.",
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AU - De Meo, Ermelinda

AU - Recla, Monica

AU - Valsasina, Paola

AU - Arrigoni, Filippo

AU - Galbiati, Susanna

AU - Bardoni, Alessandra

AU - Filippi, Massimo

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