Trial reportClinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology2014
Electrocorticographic correlates of overt articulation of 44 English phonemes: intracranial recording in children with focal epilepsy.
Trial report in Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
12 citing papers in PubMed.
- Single-Neuron Recordings Research in Children: Ethical Considerations, Feasibility, Technical Aspects, and Scientific Opportunities.Pediatric neurosurgery · 2026Review
- Lateralization and Time-Course of Cortical Phonological Representations during Syllable Production.eNeuro · 2023Article
- Mapping Human Laryngeal Motor Cortex during Vocalization.Cerebral cortex (New York, N.Y. : 1991) · 2020Article
- The Potential for a Speech Brain-Computer Interface Using Chronic Electrocorticography.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2019Review
- Neural dynamics of verbal working memory in auditory description naming.Scientific reports · 2018Article
- Brain network dynamics in the human articulatory loop.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2017Article
- Spatio-temporal dynamics of working memory maintenance and scanning of verbal information.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2017Article
- Three- and four-dimensional mapping of speech and language in patients with epilepsy.Brain : a journal of neurology · 2017Article
- Spatial-temporal patterns of electrocorticographic spectral changes during midazolam sedation.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2016Article
- Mapping mental calculation systems with electrocorticography.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2015Article
- Contribution of research on 'Epilepsy & behavior' to the refinement of functional brain atlas in four dimensions.Epilepsy & behavior : E&B · 2014Article
- From speech to thought: the neuronal basis of cognitive units in non-experimental, real-life communication investigated using ECoG.Frontiers in human neuroscience · 2014Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
objectiveWe determined the temporal-spatial patterns of electrocorticography (ECoG) signal modulation during overt articulation of 44 American English phonemes.
methodsWe studied two children with focal epilepsy who underwent extraoperative ECoG recording. Using animation movies, we delineated 'when' and 'where' gamma- (70-110 Hz) and low-frequency-band activities (10-30 Hz) were modulated during self-paced articulation.
resultsRegardless of the classes of phoneme articulated, gamma-augmentation initially involved a common site within the left inferior Rolandic area. Subsequently, gamma-augmentation and/or attenuation involved distinct sites within the left oral-sensorimotor area with a timing variable across phonemes. Finally, gamma-augmentation in a larynx-sensorimotor area took place uniformly at the onset of sound generation, and effectively distinguished voiced and voiceless phonemes. Gamma-attenuation involved the left inferior-frontal and superior-temporal regions simultaneously during articulation. Low-frequency band attenuation involved widespread regions including the frontal, temporal, and parietal regions.
conclusionsOur preliminary results support the notion that articulation of distinct phonemes recruits specific sensorimotor activation and deactivation. Gamma attenuation in the left inferior-frontal and superior-temporal regions may reflect transient functional suppression in these cortical regions during automatic, self-paced vocalization of phonemes containing no semantic or syntactic information. SIGNIFICANCE: Further studies are warranted to determine if measurement of event-related modulations of gamma-band activity, compared to that of the low-frequency-band, is more useful for decoding the underlying articulatory functions.
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