A5056735957- Neurobiology of Language and Bilingualism
- EEG and Brain-Computer Interfaces
- Reading and Literacy Development
- Neural and Behavioral Psychology Studies
- Functional Brain Connectivity Studies
- Action Observation and Synchronization
- Neural dynamics and brain function
- Hearing Impairment and Communication
- Speech and dialogue systems
- Language Development and Disorders
- Neuroscience and Music Perception
- Hemispheric Asymmetry in Neuroscience
- Phonetics and Phonology Research
- Hearing Loss and Rehabilitation
- Advanced Neuroimaging Techniques and Applications
- Cognitive and developmental aspects of mathematical skills
- Speech and Audio Processing
- Cognitive Functions and Memory
- Scientific Research and Discoveries
- Spatial Neglect and Hemispheric Dysfunction
- Structural Health Monitoring Techniques
- Multi-Agent Systems and Negotiation
- Digital Accessibility for Disabilities
- Sex and Gender in Healthcare
- Stuttering Research and Treatment
University of California, San Diego
2019-2025
San Diego State University
2017-2025
Atlas Elektronik (Germany)
2024
University of California, Berkeley
2012-2019
Hawaii Pacific University
2019
Partners In Health
2019
University of Notre Dame
2019
Neurological Surgery
2017
University of California, San Francisco
2017
VA Northern California Health Care System
2015-2016
Abstract The concept of “monitoring” refers to our ability control actions on-line. Monitoring involved in speech production is often described psycholinguistic models as an inherent part the language system. We probed specificity monitoring two experiments where electroencephalographic activities were recorded. Our focus was on a component previously reported nonlinguistic manual tasks and interpreted marker processes. error negativity (Ne, or error-related negativity), thought originate...
Word retrieval is core to language production and relies on complementary processes: the rapid activation of lexical conceptual representations word selection, which chooses correct among semantically related competitors. Lexical measured by semantic priming. In contrast, selection indexed interference hampered in homogeneous (HOM) contexts. We examined spatiotemporal dynamics these processes a picture naming task with blocks heterogeneous (HET) or HOM stimuli. used electrocorticography data...
Recent studies have demonstrated that it is possible to decode and synthesize various aspects of acoustic speech directly from intracranial measurements electrophysiological brain activity. In order continue progressing toward the development a practical neuroprosthesis for individuals with impairments, better understanding modeling imagined processes are required. The present study uses recordings participants performed speaking task trials consisting overt, mouthed, modes, representing...
The cortical regions involved in the different stages of speech production are relatively well-established, but their spatio-temporal dynamics remain poorly understood. In particular, available studies have characterized neural events with respect to onset stimulus triggering a verbal response. core aspect language production, however, is not perception action. this context, most relevant question may be how long after brain happen, rather before act do they occur. We investigated...
BOTH EMOTION AND REWARD ARE PRIMARY MODULATORS OF COGNITION: emotional word content enhances processing, and reward expectancy similarly amplifies cognitive processing from the perceptual up to executive control level. Here, we investigate how these primary regulators of cognition interact. We studied anticipation gain or loss modulates neural time course (event-related potentials, ERPs) related words. Participants performed a semantic categorization task on neutral words, which were...
Patients with lesions in the left prefrontal cortex (PFC) have been shown to be impaired lexical selection, especially when interference between semantically related alternatives is increased. To more deeply investigate which computational mechanisms may following PFC damage due stroke, a psychometric modelling approach employed we assess cognitive parameters of patients from an evidence accumulation (sequential information sampling) their response data. We also compare results healthy...
Speech monitoring abilities vary among individuals with stroke-induced aphasia, brain lesion location as a potential factor. Left posterior temporal cortex (pLTC) regions are thought to be central lexical access. We tested whether pLTC lesions affect the medial frontal action system, indexed by Error-Related Negativity (ERN), which has been implicated in inner speech monitoring. Electroencephalography was recorded during picture naming 11 (4 from each of two institutions included EEG...
Speaking is an action that requires control, for example, to prevent interference from distracting or competing information present in the speaker's environment. Control over task performance thought depend on lateral prefrontal cortex (PFC). However, neuroimaging literature does not show a consistent relation between left PFC and control word production. Here, we examined role of production by testing six patients with lesions (centred around ventrolateral PFC) control-demanding task....
The role of lateral prefrontal cortex in speech monitoring has not been delineated. Recent work suggests that medial frontal (MFC) is involved overt initiated before auditory feedback. This mechanism reflected an event-related potential (ERP), the error negativity (Ne), peaking within 100 ms after vocal-onset. Critically, healthy individuals Ne sensitive to accuracy response; it larger for than correct trials. By contrast, patients with (lPFC) damage are impaired nonverbal tasks showing no...
Abstract Spoken language comprehension requires abstraction of linguistic information from speech, but the interaction between auditory and processing speech remains poorly understood. Here, we investigate nature this using neural responses recorded intracranially while participants listened to conversational English speech. Capitalizing on multiple, language-specific patterns where phonological acoustic diverge, demonstrate causal efficacy phoneme as a unit analysis dissociate unique...
OPINION article Front. Psychol., 13 January 2015Sec. Language Sciences Volume 5 - 2014 | https://doi.org/10.3389/fpsyg.2014.01560
Abstract The “distractor-frequency effect” refers to the finding that high-frequency (HF) distractor words slow picture naming less than low-frequency distractors in picture–word interference paradigm. Rival input and output accounts of this effect have been proposed. former attributes attentional selection mechanisms operating during recognition, whereas latter it monitoring/decision on target responses an articulatory buffer. Using high-density (128-channel) EEG, we tested hypotheses from...
A domain-general monitoring mechanism is proposed to be involved in overt speech monitoring. This reflected a medial frontal component, the error negativity (Ne), present both errors and correct trials (Ne-like wave) but larger than trials. In production, this starts rise before onset therefore associated with inner Here, we investigate whether same sign language production. Twenty deaf signers (American Sign Language [ASL] dominant) 16 hearing (English participated picture-word interference...
Event-related potentials (ERPs) derived from electroencephalography (EEG) have proven useful for understanding linguistic processes during language perception and production. Words are commonly produced in sequences, yet most ERP studies used single-word experimental designs. Single-word designs reduce potential overlap word sequence However, production engages brain mechanisms different ways than single In particular, speech monitoring planning more engaged words since several must be a...