ArticleNeuropsychologia2020
Electrocorticography reveals spatiotemporal neuronal activation patterns of verbal fluency in patients with epilepsy.
Article in Neuropsychologia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
What it found
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Who cites it
7 citing papers in PubMed, 10 citations in OpenAlex.
- Revealing spatiotemporal neural activation patterns in electrocorticography recordings of human speech production by mutual information.Neuroscience informatics · 2025Article
- Posterior Cortical Atrophy: Altered Language Processing System Connectivity and Its Implications on Language Comprehension and Production.Brain sciences · 2025Article
- Intraoperative Techniques for Language Mapping in Brain Surgery: A Comparison Between Direct Electrical Stimulation (DES) and Electrocorticography (ECoG).Brain and behavior · 2025Review
- What Drives Task Performance in Animal Fluency in Individuals Without Dementia? The SMART-MR Study.Journal of speech, language, and hearing research : JSLHR · 2023Article
- Characterization of High-Gamma Activity in Electrocorticographic Signals.Frontiers in neuroscience · 2023Article
- Recent Developments in Diagnosis of Epilepsy: Scope of MicroRNA and Technological Advancements.Biology · 2021Review
- Electroencephalographic characteristics of word finding during phonological and semantic verbal fluency tasks.Neuropsychopharmacology reports · 2020Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 2 countries.
Funding
Abstract
Verbal fluency is commonly used to evaluate cognitive dysfunction in a variety of neuropsychiatric diseases, yet the neurobiology underlying performance of this task is incompletely understood. Electrocorticography (ECoG) provides a unique opportunity to investigate temporal activation patterns during cognitive tasks with high spatial and temporal precision. We used ECoG to study high gamma activity (HGA) patterns in patients undergoing presurgical evaluation for intractable epilepsy as they completed an overt, free-recall verbal fluency task. We examined regions demonstrating changes in HGA during specific timeframes relative to speech onset. Early pre-speech high gamma activity was present in left frontal regions during letter fluency and in bifrontal regions during category fluency. During timeframes typically associated with word planning, a distributed network was engaged including left inferior frontal, orbitofrontal and posterior temporal regions. Peri-Rolandic activation was observed during speech onset, and there was post-speech activation in the bilateral posterior superior temporal regions. Based on these observations in the context of prior studies, we propose a model of neocortical activity patterns underlying verbal fluency.
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Registered trials
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