AFNI: software for analysis and visualization of functional magnetic resonance neuroimages
Computers and Biomedical Research
A Parametric Manipulation of Factors Affecting Task-induced Deactivation in Functional Neuroimaging
Journal of Cognitive Neuroscience
Task-Dependent Modulation of Regions in the Left Inferior Frontal Cortex during Semantic Processing
Journal of Cognitive Neuroscience
The Neural Circuitry Involved in the Reading of German Words and Pseudowords: A PET Study
Journal of Cognitive Neuroscience
Conceptual Processing during the Conscious Resting State: A Functional MRI Study
Journal of Cognitive Neuroscience
Functional Neuroanatomy of the Semantic System: Divisible by What?
Journal of Cognitive Neuroscience
Segregating semantic from phonological processes during reading
Journal of Cognitive Neuroscience
Common blood flow changes across visual tasks: Ii. decreases in cerebral cortex
Journal of Cognitive Neuroscience
Sentence reading: A functional mri study at 4 tesla
Journal of Cognitive Neuroscience
Orthographic Distinctiveness and Semantic Elaboration Provide Separate Contributions to Memory
Journal of Cognitive Neuroscience
Conceptual Representations of Action in the Lateral Temporal Cortex
Journal of Cognitive Neuroscience
Dissociating Reading Processes on the Basis of Neuronal Interactions
Journal of Cognitive Neuroscience
Distinct Brain Systems for Processing Concrete and Abstract Concepts
Journal of Cognitive Neuroscience
Reading in a Regular Orthography: An fMRI Study Investigating the Role of Visual Familiarity
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Syntactic and Semantic Modulation of Neural Activity during Auditory Sentence Comprehension
Journal of Cognitive Neuroscience
Brain Activation for Lexical Decision and Reading Aloud: Two Sides of the Same Coin?
Journal of Cognitive Neuroscience
Taxi vs. Taksi: On Orthographic Word Recognition in the Left Ventral Occipitotemporal Cortex
Journal of Cognitive Neuroscience
The main sources of intersubject variability in neuronal activation for reading aloud
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
Contrasting effects of vocabulary knowledge on temporal and parietal brain structure across lifespan
Journal of Cognitive Neuroscience
FAC'11 Proceedings of the 6th international conference on Foundations of augmented cognition: directing the future of adaptive systems
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People can discriminate real words from nonwords even when the latter are orthographically and phonologically word-like, presumably because words activate specific lexical and/or semantic information. We investigated the neural correlates of this identification process using event-related functional magnetic resonance imaging (fMRI). Participants performed a visual lexical decision task under conditions that encouraged specific word identification: Nonwords were matched to words on orthographic and phonologic characteristics, and accuracy was emphasized over speed. To identify neural responses associated with activation of nonsemantic lexical information, processing of words and nonwords with many lexical neighbors was contrasted with processing of items with no neighbors. The fMRI data showed robust differences in activation by words and word-like nonwords, with stronger word activation occurring in a distributed, left hemisphere network previously associated with semantic processing, and stronger nonword activation occurring in a posterior inferior frontal area previously associated with grapheme-to-phoneme mapping. Contrary to lexicon-based models of word recognition, there were no brain areas in which activation increased with neighborhood size. For words, activation in the left prefrontal, angular gyrus, and ventrolateral temporal areas was stronger for items without neighbors, probably because accurate responses to these items were more dependent on activation of semantic information. The results show neural correlates of access to specific word information. The absence of facilitatory lexical neighborhood effects on activation in these brain regions argues for an interpretation in terms of semantic access. Because subjects performed the same task throughout, the results are unlikely to be due to task-specific attentional, strategic, or expectancy effects.