B243b LSRC, Ctr. for Cog. Neuroscience, Durham, NC 27708-0999
Box 90999, Ctr. for Cog. Neuroscience, Durham, NC 27708-0999
Dr. Woldorff's main research interest is in the cognitive neuroscience of attention. At each and every moment of our lives, we are bombarded by a welter of sensory information coming at us from a myriad of directions and through our various sensory modalities -- much more than we can fully process. We must continuously select and extract the most important information from this welter of sensory inputs. How the human brain accomplishes this is one of the core challenges of modern cognitive neuroscience. Dr. Woldorff uses a combination of electrophysiological (ERP, MEG) and functional neuroimaging (fMRI) methods to study the time course, functional neuroanatomy, and mechanisms of attentional processes. This multimethodological approach is directed along several main lines of research: (1) The influence of attention on sensory and perceptual processing; (2) Cognitive and attentional control mechanisms; (3) The role of attention in multisensory environments; (4) The interactive relationship between attention and reward; and (5) The role of attention in perceptual awareness.
Physical Salience and Value-Driven Salience Operate through Different Neural Mechanisms to Enhance Attentional Selection.
Electroencephalography reveals a selective disruption of cognitive control processes in craving cigarette smokers.
Neural Dynamics of Cognitive Control over Working Memory Capture of Attention.
Toward direct MRI of neuro-electro-magnetic oscillations in the human brain.
Numerical encoding in early visual cortex.
The INTUIT Study: Investigating Neuroinflammation Underlying Postoperative Cognitive Dysfunction.
Shared and distinct neural circuitry for nonsymbolic and symbolic double-digit addition.
A key role for stimulus-specific updating of the sensory cortices in the learning of stimulus-reward associations.
Developmental trajectory of neural specialization for letter and number visual processing.
Neural processes underlying the orienting of attention without awareness.
EEG measures of brain activity reveal that smoking-related images capture the attention of smokers outside of awareness.
Cortical and Subcortical Coordination of Visual Spatial Attention Revealed by Simultaneous EEG-fMRI Recording.
Numerosity processing in early visual cortex.
From hippocampus to whole-brain: The role of integrative processing in episodic memory retrieval.
Neural cascade of conflict processing: Not just time-on-task.
Intraoperative Frontal Alpha-Band Power Correlates with Preoperative Neurocognitive Function in Older Adults.
An electrophysiological dissociation of craving and stimulus-dependent attentional capture in smokers.
Visual search performance is predicted by both prestimulus and poststimulus electrical brain activity.
An electrophysiological marker of the desire to quit in smokers.
Reward-associated features capture attention in the absence of awareness: Evidence from object-substitution masking.
The effects of ongoing distraction on the neural processes underlying signal detection.
Strategic down-regulation of attentional resources as a mechanism of proactive response inhibition.
Transient Distraction and Attentional Control during a Sustained Selective Attention Task.
Altruistic traits are predicted by neural responses to monetary outcomes for self vs charity.
The Rapid Capture of Attention by Rewarded Objects.
The neural dynamics of stimulus and response conflict processing as a function of response complexity and task demands.
Rapid and Direct Encoding of Numerosity in the Visual Stream.
Orchestrating Proactive and Reactive Mechanisms for Filtering Distracting Information: Brain-Behavior Relationships Revealed by a Mixed-Design fMRI Study.
Cortical Brain Activity Reflecting Attentional Biasing Toward Reward-Predicting Cues Covaries with Economic Decision-Making Performance.
The Temporal Cascade of Neural Processes Underlying Target Detection and Attentional Processing During Auditory Search.
Rapid Context-based Identification of Target Sounds in an Auditory Scene.
Improvement in visual search with practice: mapping learning-related changes in neurocognitive stages of processing.
Reward-prospect interacts with trial-by-trial preparation for potential distraction.
The effects of attention on the temporal integration of multisensory stimuli.
Experience-dependent hemispheric specialization of letters and numbers is revealed in early visual processing.
Electrophysiological evidence for the involvement of the approximate number system in preschoolers' processing of spoken number words.
Utilization of reward-prospect enhances preparatory attention and reduces stimulus conflict.
The dynamics of proactive and reactive cognitive control processes in the human brain.
Task preparation processes related to reward prediction precede those related to task-difficulty expectation.
Disruption of visual awareness during the attentional blink is reflected by selective disruption of late-stage neural processing.
Object-Category Processing, Perceptual Awareness, and the Role of Attention during Motion-Induced BlindnessRead Full Text
Neural processing stages during object-substitution masking and their relationship to perceptual awareness.
Rapid brain responses independently predict gain maximization and loss minimization during economic decision making.
The rapid distraction of attentional resources toward the source of incongruent stimulus input during multisensory conflict.
Reward associations reduce behavioral interference by changing the temporal dynamics of conflict processing.
Resolving conflicting views: Gaze and arrow cues do not trigger rapid reflexive shifts of attention.
Cross-modal stimulus conflict: the behavioral effects of stimulus input timing in a visual-auditory Stroop task.
Is one enough? The case for non-additive influences of visual features on crossmodal Stroop interference.
Strategic allocation of attention reduces temporally predictable stimulus conflict.
The influence of different Stop-signal response time estimation procedures on behavior-behavior and brain-behavior correlations.
The involvement of the dopaminergic midbrain and cortico-striatal-thalamic circuits in the integration of reward prospect and attentional task demands.
Is conflict monitoring supramodal? Spatiotemporal dynamics of cognitive control processes in an auditory Stroop task.
Electrophysiological recordings in humans reveal reduced location-specific attentional-shift activity prior to recentering saccades.
Arrow-elicited cueing effects at short intervals: Rapid attentional orienting or cue-target stimulus conflict?
The temporal dynamics of object processing in visual cortex during the transition from distributed to focused spatial attention.
Overlapping parietal activity in memory and perception: evidence for the attention to memory model.
Differential functional roles of slow-wave and oscillatory-α activity in visual sensory cortex during anticipatory visual-spatial attention.
Rapid modulation of sensory processing induced by stimulus conflict.
The neural underpinnings of how reward associations can both guide and misguide attention.
Sandwich masking eliminates both visual awareness of faces and face-specific brain activity through a feedforward mechanism.
The cross-modal spread of attention reveals differential constraints for the temporal and spatial linking of visual and auditory stimulus events.
Substantia nigra activity level predicts trial-to-trial adjustments in cognitive control.
Cochlear implants matching the prosthesis to the brain and facilitating desired plastic changes in brain function.
Parallels in stimulus-driven oscillatory brain responses to numerosity changes in adults and seven-month-old infants.
The role of stimulus salience and attentional capture across the neural hierarchy in a stop-signal task.
Sandwich masking eliminates both visual awareness of faces and face-specific brain activity through a feedforward mechanismRead Full Text
The influence of reward associations on conflict processing in the Stroop task.
Individual differences in nonverbal number discrimination correlate with event-related potentials and measures of probabilistic reasoning.
Pinning down response inhibition in the brain--conjunction analyses of the Stop-signal task.
The multifaceted interplay between attention and multisensory integration.
Multisensory conflict modulates the spread of visual attention across a multisensory object.
The electrophysiological time course of the interaction of stimulus conflict and the multisensory spread of attention.
Video game players show more precise multisensory temporal processing abilities.
High-field FMRI reveals brain activation patterns underlying saccade execution in the human superior colliculus.
The Saccadic Re-Centering Bias is Associated with Activity Changes in the Human Superior Colliculus.
High-field FMRI reveals brain activation patterns underlying saccade execution in the human superior colliculus.Read Full Text
Induced alpha-band oscillations reflect ratio-dependent number discrimination in the infant brain.
Momentary reductions of attention permit greater processing of irrelevant stimuli.
Priming and backward influences in the human brain: processing interactions during the stroop interference effect.
Intermodal attention affects the processing of the temporal alignment of audiovisual stimuli.
The temporal dynamics of implicit processing of non-letter, letter, and word-forms in the human visual cortex.
Dynamic MRI of small electrical activity.
Rapid electrophysiological brain responses are influenced by both valence and magnitude of monetary rewards.
Cognitive control in social situations: a role for the dorsolateral prefrontal cortex.
Electrophysiological measures of time processing in infant and adult brains: Weber's Law holds.
fMRI evidence for both generalized and specialized components of attentional control.
Erratum to "The neural circuitry underlying the executive control of auditory spatial attention" [Brain Res. 1134 (2007) 187-198] (DOI:10.1016/j.brainres.2006.11.088)Read Full Text
Component structure of event-related fMRI responses in the different neurovascular compartments.
Selective attention and audiovisual integration: is attending to both modalities a prerequisite for early integration?
The neural circuitry underlying the executive control of auditory spatial attention.
Good times for multisensory integration: Effects of the precision of temporal synchrony as revealed by gamma-band oscillations.
Electrophysiological evidence for notation independence in numerical processing.
Timing and sequence of brain activity in top-down control of visual-spatial attentionRead Full Text
Timing and sequence of brain activity in top-down control of visual-spatial attention.
Electrophysiological evidence for notation independence in numerical processing.Read Full Text
Face Processing is Gated by Visual Spatial Attention.
Attentional capacity for processing concurrent stimuli is larger across sensory modalities than within a modality.
Dissociation of event-related potentials indexing arousal and semantic cohesion during emotional word encoding.
Brain regions activated by endogenous preparatory set shifting as revealed by fMRI.
The neural bases of momentary lapses in attention.
Hemispheric asymmetry of sulcus-function correspondence: quantization and developmental implications.
Pre-target activity in visual cortex predicts behavioral performance on spatial and feature attention tasks.
Interactions between attention and perceptual grouping in human visual cortex.
Children's brain activations while viewing televised violence revealed by fMRIRead Full Text
Electrophysiological activity underlying inhibitory control processes in normal adults.
The spread of attention across modalities and space in a multisensory object.
Effects of attention on the neural processing of harmonic syntax in Western music.
Multisensory processing and oscillatory gamma responses: effects of spatial selective attention.
Selective attention and multisensory integration: multiple phases of effects on the evoked brain activity.
Hemispheric asymmetries for different components of global/local attention occur in distinct temporo-parietal loci.
Abnormal brain activity related to performance monitoring and error detection in children with ADHD.
Control networks and hemispheric asymmetries in parietal cortex during attentional orienting in different spatial reference frames.
Dorsal anterior cingulate cortex resolves conflict from distracting stimuli by boosting attention toward relevant events.
The neural mechanisms for minimizing cross-modal distraction.
Timing in the baby brain.
The BOLD fMRI refractory effect is specific to stimulus attributes: evidence from a visual motion paradigm.
Mechanisms of moving the mind's eye: planning and execution of spatial shifts of attention.
Functional parcellation of attentional control regions of the brain.
Electrophysiological correlates of lateral interactions in human visual cortex.
Conflict monitoring in the human anterior cingulate cortex during selective attention to global and local object features.
Neural mechanisms of top-down control during spatial and feature attention.
The ERP omitted stimulus response to "no-stim" events and its implications for fast-rate event-related fMRI designs.
Form-from-motion: MEG evidence for time course and processing sequence.
The temporal dynamics of the effects in occipital cortex of visual-spatial selective attention.
Analysis of pathways mediating preserved vision after striate cortex lesions.
Effects of practice on executive control investigated with fMRI.
A role for top-down attentional orienting during interference between global and local aspects of hierarchical stimuli.
Enhanced spatial localization of neuronal activation using simultaneous apparent-diffusion-coefficient and blood-oxygenation functional magnetic resonance imaging.
Unmasking motion-processing activity in human brain area V5/MT+ mediated by pathways that bypass primary visual cortex.
BOLD signal compartmentalization based on the apparent diffusion coefficient.
Delayed striate cortical activation during spatial attention.
Speech segmentation by native and non-native speakers: the use of lexical, syntactic, and stress-pattern cues.
Compartmentalization of the BOLD Signal Based on the Apparent MobilitiesRead Full Text
Structure--function spatial covariance in the human visual cortex.
Dissociating top-down attentional control from selective perception and action.
Automatic talairach labels for functional activation sitesRead Full Text
Intersubject variability in cortical activations during a complex language task.
Inhibitory control in children with attention-deficit/hyperactivity disorder: event-related potentials identify the processing component and timing of an impaired right-frontal response-inhibition mechanism.
Automated Talairach atlas labels for functional brain mapping.
410. Interactive effects in the anterior cingulate of sadness and selective attention: a PET studyRead Full Text
An ERP study of the temporal course of the Stroop color-word interference effect.
Deconvolution of event-related fMRI responses in fast-rate experimental designs: tracking amplitude variations.
Activation of human auditory cortex in memory retrieval experimentsRead Full Text
Right occipital ERP effects for non-letter character strings relative to letter stringsRead Full Text
Effects of TV violence viewing on learning and memory in childrenRead Full Text
A movement-sensitive area in auditory cortex.
Hemodynamic and electrophysiological study of the role of the anterior cingulate in target-related processing and selection for action.
Lateralized auditory spatial perception and the contralaterality of cortical processing as studied with functional magnetic resonance imaging and magnetoencephalography.
The verb generation task: The timing of activationsRead Full Text
Randomized event-related experimental designs allow for extremely rapid presentation rates using functional MRI.
Activation of human auditory cortex in retrieval experiments: an fMRI study.
Magnetoencephalographic recordings demonstrate attentional modulation of mismatch-related neural activity in human auditory cortex.
Auditory attention in the congenitally blind: where, when and what gets reorganized?
Activations in visual cortex by language and non-language tasks in the congenitally blind: A PET studyRead Full Text
Sustained visual stimulation: Neuronal and hemodynamic responsesRead Full Text
Inter-subject variability in task-induced activations during verb generationRead Full Text
Evaluation of hemispheric dominance for language using functional MRI: a comparison with positron emission tomography.
Intersubject variability of functional areas in the human visual cortex.
Neuronal stability in prolonged visual stimulationRead Full Text
Lateralized auditory spatial perception and cortical processing contralaterality as studied with fMRI and MEGRead Full Text
Retinotopic organization of early visual spatial attention effects as revealed by PET and ERPs.
Improving the temporal resolution of functional MR imaging using keyhole techniques.
Selective listening at fast stimulus rates: so much to hear, so little time.
Effects of spatial cuing on luminance detectability: psychophysical and electrophysiological evidence for early selection.
Integrating human brain maps.
Modulation of early sensory processing in human auditory cortex during auditory selective attention.
Distortion of ERP averages due to overlap from temporally adjacent ERPs: analysis and correction.
Modulation of early sensory processing in human auditory cortex during auditory selective attentionRead Full Text
Modulation of early auditory processing during selective listening to rapidly presented tones.
The effects of channel-selective attention on the mismatch negativity wave elicited by deviant tones.
Mechanisms of auditory selective attention as revealed by event-related potentials.
Cross-modal selective attention effects on retinal, myogenic, brainstem, and cerebral evoked potentials.
Attentional influence on the mismatch negativityRead Full Text
Combined use of microreflexes and event-related brain potentials as measures of auditory selective attention.
Mechanisms of early selective attention in auditory and visual modalities.
Evidence for effects of selective attention in the mid-latency range of the human auditory event-related potential.
dc AND ac ELECTRIC FIELD, PLASMA DENSITY, PLASMA TEMPERATURE, AND FIELD-ALIGNED CURRENT EXPERIMENTS ON THE S3-3 SATELLITE.Read Full Text
Nonlinear steepening of the electrostatic ion cyclotron waveRead Full Text