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Showing papers in "Cognitive Brain Research in 2004"


Journal ArticleDOI
TL;DR: The neurobiological properties of the basal ganglia, an area known to be necessary for interval timing and motor control, suggests that this set of structures act as a coincidence detector of cortical and thalamic input.

791 citations


Journal ArticleDOI
TL;DR: Although the vast majority of activated voxels were activated during both conditions, the spatial overlap was neither complete nor uniform; the overlap was much more pronounced in frontal and parietal regions than in temporal and occipital regions, which may indicate that cognitive control processes function comparably in both imagery and perception.

672 citations


Journal ArticleDOI
TL;DR: In this paper, the human electroencephalographic mu rhythm is suppressed during the observation of actions performed by other persons, an effect that may be functionally related to the behaviour of so-called mirror neurons observed in area F5 of nonhuman primates.

548 citations


Journal ArticleDOI
TL;DR: Results show that short-lasting changes in brain's excitability state are reflected the relative alpha power of the EEG, which may explain significant variability in perceptual processes and ERP generation especially at boundary conditions such as sensory threshold.

518 citations


Journal ArticleDOI
TL;DR: Different neural generators were found for the ERN/Ne and the Pe, which further supports the notion that both error-related components represent different aspects of error processing.

419 citations


Journal ArticleDOI
TL;DR: The broad region of the occipital and temporal cortices, especially in the right hemisphere, showed higher activation during viewing of the dynamic facial expressions than it did during the viewing of either control stimulus, common to both expressions.

374 citations


Journal ArticleDOI
TL;DR: It is shown that the perceptual system is able to adaptively recalibrate itself to audio-visual temporal asynchronies and the point of subjective simultaneity was shifted in the direction of the exposure lag, indicative of recalibration.

321 citations


Journal ArticleDOI
TL;DR: The general conclusion is that the P1-N1 complex is generated primarily by evoked alpha and theta oscillations reflecting the synchronous activation of a working- and semantic memory system.

313 citations


Journal ArticleDOI
TL;DR: Reading metaphors in contrast to literal sentences revealed signal changes in the left lateral inferior frontal, inferior temporal and posterior middle/inferior temporal gyri, which may reflect semantic inferencing processes during the understanding of a metaphor.

299 citations


Journal ArticleDOI
TL;DR: The results reveal that the executive control of behavior can be separated into distinct functions performed by discrete cortical regions, and are indicative of a tight coupling between prefrontally mediated control and conflict levels monitored more posteriorly.

297 citations


Journal ArticleDOI
TL;DR: Data support a model developed over two decades ago by Gallup that posits that self-awareness and mental state attribution are part of a shared neurocognitive suite of processing and that neural architecture implicated in processing knowledge about the self is called upon when inferring knowledge in others.

Journal ArticleDOI
TL;DR: The ERP experiment suggests that lexico-semantic fit can be more important for word processing than the meaning of the sentence as determined by the syntactic structure, at least initially.

Journal ArticleDOI
TL;DR: In this article, the authors investigated the cortical network which mediates music performance compared to music imagery in 12 music academy students playing the right hand part of a Bartok piece using functional magnetic resonance imaging (fMRI).

Journal ArticleDOI
TL;DR: It was demonstrated that the inspection of the callosal microstructure using DTI yields empirical evidence on interhemispheric connectivity that goes well beyond the information revealed by anatomical measurements alone, and DTI has proven to be a useful additional method in cognitive neuroscience.

Journal ArticleDOI
TL;DR: The spatiotemporal analysis of brain activation during Stroop task execution was performed using high-density event-related potentials (ERPs) and dipole source modeling and indicated that ACC activation seems to follow the activation of PFC with some overlap between the two components.

Journal ArticleDOI
TL;DR: In this paper, the primary motor cortex (M1) in motor imagery was addressed using functional magnetic resonance imaging at 2.0 T and 2 x 2 x 4 mm3 resolution in six right-handed subjects.

Journal ArticleDOI
TL;DR: Event-related functional magnetic resonance imaging was used to differentiate neural systems involved in formulating representations of time from processes associated with making decisions about their duration and to support the independence of systems that mediate interval encoding and decision processes.

Journal ArticleDOI
TL;DR: Results showed that independent of perceptual stimulation, the FFA and PPA exhibited greater encoding- and maintenance-related activity when their favored stimulus was relevant to the recognition task, consistent with the view that visual working memory encoding and maintenance processes are implemented through modulation of inferior temporal activity by prefrontal cortex.

Journal ArticleDOI
TL;DR: Both fusion and fission illusions using stimuli very similar to those used by Shams et al. are reported, finding that discontinuity, modality appropriateness and information reliability are factors which increase a modality's tendency to dominate.

Journal ArticleDOI
TL;DR: This paper used event-related brain potentials (ERPs) to monitor neural correlates of familiarity and recollection at both encoding and retrieval, and found that familiarity was associated with an enhanced positivity at frontopolar scalp sites from 150 to 450 ms.

Journal ArticleDOI
TL;DR: The frontal operculum plays a pivotal role in the multi-faceted interaction between time and attention, as well as being activated when attentional resources are limited by time itself.

Journal ArticleDOI
TL;DR: Melody repetition and harmonization produced highly similar patterns of activation, however, whereas all three tasks activated secondary auditory cortex (posterior Brodmann Area 22), only melody repetition and Harmonization activated the planum polare (BA 38), implying that BA 38 is responsible for an even higher level of musical processing than BA 22.

Journal ArticleDOI
TL;DR: Using event-related fMRI and a procedure that randomized the presentation of trials with delay epochs that were either filled with a flickering checkerboard or unfilled, the attention-based rehearsal effect was localized to extrastriate areas 18 and 19, and its absence was confirmed in striate cortex.

Journal ArticleDOI
TL;DR: These results, combined with other peak-interval procedure data from drug and lesion studies in animals as well as behavioral results in human patient populations with striatal damage, support the involvement of frontal-striatal circuitry in human interval timing.

Journal ArticleDOI
TL;DR: The results indicate that cortical networks involved in simple arithmetic are similar among arithmetic operations, and may not show significant changes in the structure during the second decade of life.

Journal ArticleDOI
TL;DR: The SMA may provide an efferent signal which is used by other brain areas to modulate somatosensory activity during self-generated movement, and is suggested to reduce and almost abolished the sensory suppression effect in voluntary action trials.

Journal ArticleDOI
TL;DR: The findings suggest that TBI patients may have dysfunctional alpha generators as a consequence of their injury that impairs endogenous control during the task, and a laboratory paradigm that is particularly sensitive to sustained attention.

Journal ArticleDOI
TL;DR: Correlational analyses revealed associations between the amount of ERD in the upper alpha band and intelligence in several brain regions and stronger associations between ERD and intelligence were found for fluid rather than crystallized intelligence.

Journal ArticleDOI
TL;DR: The reduction in pattern expression with sleep deprivation for each subject was related to the change in performance on the DMS task, and was correlated with reductions in recognition accuracy, increased intra-individual variability in reaction time and increased lapsing.

Journal ArticleDOI
TL;DR: In this article, the influence of task requirements on the fast visual processing of natural scenes was studied in 14 human subjects performing in alternation an "animal" categorization task and a single-photograph recognition task.