- Neurobiology of Language and Bilingualism
- Reading and Literacy Development
- Autism Spectrum Disorder Research
- Language Development and Disorders
- Language, Metaphor, and Cognition
- EEG and Brain-Computer Interfaces
- Intelligent Tutoring Systems and Adaptive Learning
- Speech and dialogue systems
- Behavioral and Psychological Studies
- Attention Deficit Hyperactivity Disorder
- Second Language Acquisition and Learning
- Neural and Behavioral Psychology Studies
- Neural dynamics and brain function
- Natural Language Processing Techniques
- Educational Strategies and Epistemologies
- Discourse Analysis and Cultural Communication
- ERP Systems Implementation and Impact
- Face Recognition and Perception
- Innovative Teaching and Learning Methods
- Text Readability and Simplification
- Schizophrenia research and treatment
- Memory Processes and Influences
- Genetic Associations and Epidemiology
- Animal Behavior and Reproduction
- Service-Oriented Architecture and Web Services
Johns Hopkins University
2008-2020
Johns Hopkins Medicine
2008-2020
University of California, Davis
2007
University of North Carolina at Chapel Hill
1999
Clark University
1994
Syntactic priming is the facilitation of processing that occurs when a sentence has same syntactic form as preceding sentence. Such effects have been less consistently demonstrated in comprehension than production, and those reported depended on repetition verbs across sentences. In an event-related potential experiment, subjects read target sentences containing reduced-relative clauses. Each was preceded by contained verb either or main-clause construction. Reduced-relative primes elicited...
Abstract Five experiments used self-paced reading time to examine the ways in which complex noun phrases (both conjoined NPs and possessive NPs) influence interpretation of referentially dependent expressions. The experimental conditions contrasted repeated names pronouns referring components a NP entire NP. results indicate that entity introduced by major constituent sentence is more accessible as referent than entities component phrases. This pattern accessibility departs from advantage...
Background: Word retrieval during verbal fluency tasks utilizes both automatic and controlled cognitive processes. A distinction has been made between the generation of clusters switches on tasks. Clusters, or reporting contiguous words within semantic phonemic subcategories, are thought to reflect a relatively processes In contrast, switching from one subcategory another is represent more controlled, effortful form processing. Objective: this single-blind experiment, we investigated whether...
Significance How does the neural activity evoked by visual stimuli support awareness? In this paper we report on an individual with a rare type of degeneration as window into responses underlying awareness. When presented containing faces and target words—regardless whether patient was aware their presence—the neurophysiological were indistinguishable. These data possibility that extensive processing, up to including activation identity, can occur without resulting in awareness stimuli.
Troyer and colleagues [Troyer, A. K., Moscovitch, M., & Winocur, G. (1997). Clustering switching as two components of verbal fluency: evidence from younger older healthy adults. Neuropsychology, 11(1), 138-146] developed a seminal method to measure clustering behaviors during fluency (VF) productions. We sought expand the reach their system by modifying scoring rules. Compared system, our modifications yield comparable estimates interrater reliability similar patterns correlation with...
ABSTRACT Bird song researchers have not agreed on a common set of units analysis by which birds' songs various different species might be described. Analysis 50 papers reveals 28 unit designations and considerable variation in their application despite only three methods for identifying units. The lack consensus arises from the fact that generated same at levels organization are given names. A method designating bird is offered discussion uses concept level to stress fundamental unanimity...
Decreased productivity on verbal fluency tasks by persons with schizophrenia has been attributed to semantic system abnormalities. Semantic structure is often assessed using multidimensional scaling (MDS) detect normal and aberrant clustering. However, MDS limitations that may be particularly problematic for such assessments. Here, we introduce a different clustering technique, singular value decomposition (SVD), elucidate abnormalities of the in schizophrenia. We compared 102 treated...
On category-cued verbal fluency tasks, such as animal naming, respondents often report exemplars in semantically related clusters. We (Sung et al., 2012) used this tendency to elucidate sources of semantic dysfunction adults with schizophrenia (SZ). Many patients bipolar disorder (BD) show cognitive deficits that are similar but milder than those seen SZ. Whether similarity extends the functioning system is unclear. To test hypothesis it does, we adapted a clustering technique called...
Implicit measures of cognition are essential for assessing knowledge in people with Level 3 autism because such individuals often unable to make reliable overt behavioral responses. In this study, we investigated whether three implicit measures-eye movement (EM) monitoring, pupillary dilation (PD), and event-related potentials (ERPs)-can be used reliably estimate vocabulary autism. Five adults were tested a repeated-measures design two tasks. High-frequency 'known' words (eg, bus, airplane)...
We examined the effect of interruption on reading to determine if discourse processing is susceptible similarity-based interference. Participants read pairs passages, either one before other (in continuous condition) or with sentences two passages interleaved condition). In addition, similarity types (narrative expository) in a pair was manipulated. Performance measured self-paced time and accuracy answering comprehension questions. experiments, slowed text sentences; this greatest when...
Abstract Coreference (the mechanism by which two linguistic expressions are taken to refer the same entity in world) is a universal and essential feature of discourse. Without this tool, our ability comprehend language would be severely impaired. Due their central role discourse comprehension, processes coreference established have been focus numerous behavioral studies. In article, we review studies that build upon body work employing event‐related potential technique elucidate neuronal...
We report a patient, RFS, with category-specific metamorphopsia for Arabic digits. MRI shows parietal atrophy; concurrent motor and memory deficits support diagnosis of cortico-basal degeneration. RFS’s recognition, writing, mental imagery digits are dramatically impaired, yet semantic knowledge number quantities is intact. Digit forms perceived as grossly distorted the distort other stimuli (e.g., faces or words) in spatial temporal vicinity, rendering RFS unaware their identity form. For...