Results 1 - 10 of 3,318

Mining event-related brain dynamics,”

by Scott Makeig , Stefan Debener , Julie Onton , Arnaud Delorme - Trends in Cognitive Sciences, , 2004
"... This article provides a new, more comprehensive view of event-related brain dynamics founded on an information-based approach to modeling electroencephalographic (EEG) dynamics. Most EEG research focuses either on peaks 'evoked' in average eventrelated potentials (ERPs) or on changes &apo ..."
Abstract - Cited by 130 (21 self) - Add to MetaCart
This article provides a new, more comprehensive view of event-related brain dynamics founded on an information-based approach to modeling electroencephalographic (EEG) dynamics. Most EEG research focuses either on peaks 'evoked' in average eventrelated potentials (ERPs) or on changes

The neural basis of human error processing: Reinforcement learning, dopamine, and the error-related negativity

by Clay B. Holroyd, Michael G. H. Coles - PSYCHOLOGICAL REVIEW 109:679–709 , 2002
"... The authors present a unified account of 2 neural systems concerned with the development and expression of adaptive behaviors: a mesencephalic dopamine system for reinforcement learning and a “generic ” error-processing system associated with the anterior cingulate cortex. The existence of the error ..."
Abstract - Cited by 430 (20 self) - Add to MetaCart
of the error-processing system has been inferred from the error-related negativity (ERN), a component of the event-related brain potential elicited when human participants commit errors in reaction-time tasks. The authors propose that the ERN is generated when a negative reinforcement learning signal

Analyzing and visualizing single-trial event-related potentials

by Tzyy-ping Jung, Scott Makeig, Marissa Westerfield, Jeanne Townsend, Eric Courchesne, Terrence J. Sejnowskp - In Advances in Neural Info Proc Sys 11 , 1999
"... Event-related potentials (ERPs), are portions of electroencephalo-graphic (EEG) recordings that are both time- and phase-locked to experimental events. ERPs are usually averaged to increase their signal/noise ratio relative to non-phase locked EEG activ-ity, regardless of the fact that response acti ..."
Abstract - Cited by 30 (8 self) - Add to MetaCart
applicable to electrophyiological research on both normal and clin-ical populations. Analyzing and Visualizing Single-Trial Event-Related Potentials 119 1

Electrophysiological correlates of rapid spatial orienting towards fearful faces

by Gilles Pourtois, Didier Gr, David S, Patrik Vuilleumier - Cereb. Cortex , 2004
"... We investigated the spatio-temporal dynamic of attentional bias towards fearful faces. Twelve participants performed a covert spatial orienting task while recording visual event-related brain potentials (VEPs). Each trial consisted of a pair of faces (one emotional and one neutral) briefly presented ..."
Abstract - Cited by 106 (6 self) - Add to MetaCart
We investigated the spatio-temporal dynamic of attentional bias towards fearful faces. Twelve participants performed a covert spatial orienting task while recording visual event-related brain potentials (VEPs). Each trial consisted of a pair of faces (one emotional and one neutral) briefly

Finding the Self? An Event-Related fMRI Study

by W. M. Kelley, C. N. Macrae, C. L. Wyl, S. Caglar, S. Inati, T. F. Heatherton
"... & Researchers have long debated whether knowledge about the self is unique in terms of its functional anatomic representation within the human brain. In the context of memory function, knowledge about the self is typically remembered better than other types of semantic information. But why does ..."
Abstract - Cited by 195 (16 self) - Add to MetaCart
this memorial effect emerge? Extending previous research on this topic (see Craik et al., 1999), the present study used event-related functional magnetic resonance imaging to investigate potential neural substrates of self-referential processing. Participants were imaged while making judgments about trait

Trilinear modeling of event-related potentials

by Kongming Wang, Henri Begleiter, Bernice Porjesz - Brain Topogr , 2000
"... Summary: This paper describes a method for estimating a set of spatial components (brain maps) and temporal components (waveforms) of brain potentials. These components play the role of bases of a coordinate system, in the sense that the brain potentials of any subject can be represented as superpos ..."
Abstract - Cited by 4 (1 self) - Add to MetaCart
: Brain mapping; Event-related potentials; Topographic component model; Trilinear modeling.

Analyzing and Visualizing Single-Trial Event-Related Potentials

by Tzyy-Ping Jung Scott, Jeanne Townsend, Eric Courchesne, Terrence J. Sejnowski , 1999
"... Event-related potentials (ERPs), are portions of electroencephalographic (EEG) recordings that are both time- and phase-locked to experimental events. ERPs are usually averaged to increase their signal/noise ratio relative to non-phase locked EEG activity, regardless of the fact that response ac ..."
Abstract - Add to MetaCart
Event-related potentials (ERPs), are portions of electroencephalographic (EEG) recordings that are both time- and phase-locked to experimental events. ERPs are usually averaged to increase their signal/noise ratio relative to non-phase locked EEG activity, regardless of the fact that response

Cognitive Modeling of Event-Related Potentials

by Gordon D. Griffiths
"... Cognitive modeling typically predicts the externally observable results of tasks and psychological experiments such as participant reaction times and error rates. To understand better the neural processes associated with cognition and behavior, it is necessary to model the internal processes. In thi ..."
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. In this paper, we present a method of building a cognitive model of a simple visual selective-attention task, so that the brain electrical activity observed during the task can be simulated. Processes in the model were assumed to generate electrical dipoles in the brain and were found to provide an accurate fit

Auditory and visual semantic priming in lexical decision: A comparison using event-related brain potentials

by Phillip J. Holcomb, Helen J. Neville - Language and Cognitive Processes , 1990
"... This study compared and contrasted semantic priming in the visual and auditory modalities using event-related brain potentials (ERPs) and be-havioural measures (errors and reaction time). Subjects participated in two runs (one visual, one auditory) of a lexical decision task where stimuli were word ..."
Abstract - Cited by 96 (7 self) - Add to MetaCart
This study compared and contrasted semantic priming in the visual and auditory modalities using event-related brain potentials (ERPs) and be-havioural measures (errors and reaction time). Subjects participated in two runs (one visual, one auditory) of a lexical decision task where stimuli were word

Analysis and Visualization of Single-Trial Event-Related Potentials

by Tzyy-Oing Jung, Scott Makeig, Marissa Westerfield, Jeanne Townsend, Eric Courchesne, Terrence J. Sejnowski - HUMAN BRAIN MAPPING 14:166–185 , 2001
"... In this study, alinear decomposition technique, independent component analysis (ICA), is applied to single-trial multichannel EEG data from event-related potential (ERP) experiments. Spatial filters derived by ICA blindly separate the input data into asum of temporally independent and spatially fixe ..."
Abstract - Cited by 96 (15 self) - Add to MetaCart
In this study, alinear decomposition technique, independent component analysis (ICA), is applied to single-trial multichannel EEG data from event-related potential (ERP) experiments. Spatial filters derived by ICA blindly separate the input data into asum of temporally independent and spatially
Results 1 - 10 of 3,318