Distributed cortical network for visual attention
Journal of Cognitive Neuroscience
A neural mechanism for involuntary attention shifts to changes in auditory stimulation
Journal of Cognitive Neuroscience
Posttraining Sleep Enhances Automaticity in Perceptual Discrimination
Journal of Cognitive Neuroscience
Grammar Processing Outside the Focus of Attention: an MEG Study
Journal of Cognitive Neuroscience
Journal of Cognitive Neuroscience
The Influence of Stimulus Deviance on Electrophysiologic and Behavioral Responses to Novel Events
Journal of Cognitive Neuroscience
Task Switching and Novelty Processing Activate a Common Neural Network for Cognitive Control
Journal of Cognitive Neuroscience
Precursors of Insight in Event-related Brain Potentials
Journal of Cognitive Neuroscience
Attentional Modulation in the Detection of Irrelevant Deviance: A Simultaneous ERP/fMRI Study
Journal of Cognitive Neuroscience
Attention and Sensory Interactions within the Occipital Cortex in the Early Blind: An fMRI Study
Journal of Cognitive Neuroscience
On-line assessment of statistical learning by event-related potentials
Journal of Cognitive Neuroscience
Difficulty of discrimination modulates attentional capture by regulating attentional focus
Journal of Cognitive Neuroscience
Interactions between language and attention systems: Early automatic lexical processing?
Journal of Cognitive Neuroscience
Enhanced passive and active processing of syllables in musician children
Journal of Cognitive Neuroscience
Novelty measures as cues for temporal salience in audio similarity
Proceedings of the second international ACM workshop on Music information retrieval with user-centered and multimodal strategies
Mind wandering and the adaptive control of attentional resources
Journal of Cognitive Neuroscience
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Behavioral and event-related brain potential (ERP) measures were used to elucidate the neural mechanisms of involuntary engagement of attention by novelty and change in the acoustic environment. The behavioral measures consisted of the reaction time (RT) and performance accuracy (hit rate) in a forcedchoice visual RT task where subjects were to discriminate between odd and even numbers. Each visual stimulus was preceded by an irrelevant auditory stimulus, which was randomly either a "standard" tone (80%), a slightly, higher "deviant" tone (10%), or a natural, "novel" sound (10%). Novel sounds prolonged the RT to successive visual stimuli by 17 msec as compared with the RT to visual stimuli that followed standard tones. Deviant tones, in turn, decreased the hit rate but did not significantly affect the RT. In the ERPs to deviant tones, the mismatch negativity (MMN), peaking at 150 msec, and a second negativity, peaking at 400 msec, could be observed. Novel sounds elicited an enhanced N1, with a probable overlap by the MMN, and a large positive P3a response with two different subcomponents: an early centrally dominant P3a, peaking at 230 msec, and a late P3a, peaking at 315 msec with a right-frontal scalp maximum. The present results suggest the involvement of two different neural mechanisms in triggering involuntary attention to acoustic novelty and change: a transient-detector mechanism activated by novel sounds and reflected in the N1 and a stimulus-change detector mechanism activated by deviant tones and novel sounds and reflected in the MMN. The observed differential distracting effects by slightly deviant tones and widely deviant novel sounds support the notion of two separate mechanisms of involuntary attention.