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1
Dynamic functional brain network connectivity during pseudoword processing relates to children’s reading skill
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Resting functional connectivity in the semantic appraisal network predicts accuracy of emotion identification.
Abstract: ObjectiveStructural and task-based functional studies associate emotion reading with frontotemporal brain networks, though it remains unclear whether functional connectivity (FC) alone predicts emotion reading ability. The predominantly frontotemporal salience and semantic appraisal (SAN) networks are selectively impacted in neurodegenerative disease syndromes like behavioral-variant frontotemporal dementia (bvFTD) and semantic-variant primary progressive aphasia (svPPA). Accurate emotion identification diminishes in some of these patients, but studies investigating the source of this symptom in patients have predominantly examined structural rather than functional brain changes. Thus, we investigated the impact of altered connectivity on their emotion reading.MethodsOne-hundred-eighty-five participants (26 bvFTD, 21 svPPA, 24 non-fluent variant PPA, 24 progressive supranuclear palsy, 49 Alzheimer's disease, 41 neurologically healthy older controls) underwent task-free fMRI, and completed the Emotion Evaluation subtest of The Awareness of Social Inference Test (TASIT-EET), watching videos and selecting labels for actors' emotions.ResultsAs expected, patients averaged significantly worse on emotion reading, but with wide inter-individual variability. Across all groups, lower mean FC in the SAN, but not other ICNs, predicted worse TASIT-EET performance. Node-pair analysis revealed that emotion identification was predicted by FC between 1) right anterior temporal lobe (RaTL) and right anterior orbitofrontal (OFC), 2) RaTL and right posterior OFC, and 3) left basolateral amygdala and left posterior OFC.ConclusionEmotion reading test performance predicts FC in specific SAN regions mediating socioemotional semantics, personalized evaluations, and salience-driven attention, highlighting the value of emotion testing in clinical and research settings to index neural circuit dysfunction in patients with neurodegeneration and other neurologic disorders.
Keyword: Aphasia; Brain; Emotion reading; Emotions; Frontotemporal dementia; Functional connectivity; Humans; Magnetic Resonance Imaging; Neurodegeneration; Neurodegenerative Diseases; Neurosciences; Primary Progressive; Right anterior temporal lobe; Semantic appraisal network; Semantics
URL: https://escholarship.org/uc/item/67m8f14f
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Resting functional connectivity in the semantic appraisal network predicts accuracy of emotion identification.
Yang, Winson FZ; Toller, Gianina; Shdo, Suzanne. - : eScholarship, University of California, 2021
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4
Intervention orthophonique et neurobiologie du cerveau : apports de la neuroimagerie à la prise en charge de l’aphasie chronique
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Intervention orthophonique et neurobiologie du cerveau : apports de la neuroimagerie à la prise en charge de l’aphasie chronique
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6
Condition-dependent functional connectivity: syntax networks in bilinguals
In: PHILOS T ROY SOC B , 360 (1457) 921 - 935. (2005) (2005)
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