Attention

41.

Neural correlates of incongruous visual information. An event-related fMRI study.

Incongruous information is better remembered than ordinary information. This result has been attributed both to semantic incongruity and surprise. To determine the contribution of each factor, we performed a functional magnetic resonance imaging study in ...
Pascale Michelon, Abraham Z Snyder, Randy L Buckner, Mark McAvoy, Jeffrey M Zacks (Neuroimage, 200308)
neural-correlates-incongruous-visual-information-event-related-fmri.asp

42.

Attentional inhibition of visual processing in human striate and extrastriate cortex.

Allocating attention to a spatial location in the visual field is associated with an increase in the cortical response evoked by a stimulus at that location, compared to when the same stimulus is unattended. We used event-related functional magnetic ...
Scott D Slotnick, Jens Schwarzbach, Steven Yantis (Neuroimage, 200308)
attentional-inhibition-visual-processing-human-striate-extrastriate.asp

43.

Functional anatomy and differential time courses of neural processing for explicit, inferred, and illusory contours. An event-related fMRI study.

The perception of shape does not necessarily require viewing an explicit outline figure. Using event-related functional magnetic resonance imaging we examined the time courses of neural activations provoked by shapes defined by (1) lines, (2) illusory ...
Afra Ritzl, John C Marshall, Peter H Weiss, Oliver Zafiris, Nadim J Shah, Karl Zilles, Gereon R Fink (Neuroimage, 200308)
functional-anatomy-differential-time-courses-neural-processing.asp

44.

Forgetting congruent and incongruent stereotypical information.

In 2 studies, the authors investigated the directed-forgetting effects of stereotypically congruent, incongruent, and irrelevant information, after the in-group (Swedish) and out-group (immigrant) social categories had been subliminally primed. Because ...
Tadesse Araya, Nazar Akrami, Bo Ekehammar (J Soc Psychol, 200308)
forgetting-congruent-incongruent-stereotypical-information.asp

45.

The roles of changes in deoxyhemoglobin concentration and regional cerebral blood volume in the fMRI BOLD signal.

To study the behavior of cerebral physiological parameters and to further the understanding of the functional magnetic resonance imaging (fMRI) blood-oxygen-level-dependent (BOLD) effect, multisource frequency-domain near-infrared and BOLD fMRI signals ...
Vlad Toronov, Scott Walker, Rajarsi Gupta, Jee H Choi, Enrico Gratton, Dennis Hueber, Andrew Webb (Neuroimage, 200308)
roles-changes-deoxyhemoglobin-concentration-regional-cerebral-blood.asp

46.

Effects of attention and emotion on repetition priming and their modulation by cholinergic enhancement.

We examined whether behavioral and neural effects of repeating faces are modulated by independent factors of selective attention, emotion, and cholinergic enhancement, during functional MRI. Face repetition occurred either between task-relevant ...
Paul Bentley, Patrik Vuilleumier, Christiane M Thiel, Jon Driver, Raymond J Dolan (J Neurophysiol, 200308)
effects-attention-emotion-repetition-priming-modulation-cholinergic.asp

47.

Multivariate autoregressive modeling of fMRI time series.

We propose the use of multivariate autoregressive (MAR) models of functional magnetic resonance imaging time series to make inferences about functional integration within the human brain. The method is demonstrated with synthetic and real data showing ...
L Harrison, W D Penny, K Friston (Neuroimage, 200308)
multivariate-autoregressive-modeling-fmri-time-series.asp

48.

Functional anatomy of pitch memory--an fMRI study with sparse temporal sampling.

Auditory functional magnetic resonance imaging tasks are challenging since the MR scanner noise can interfere with the auditory stimulation. To avoid this interference a sparse temporal sampling method with a long repetition time (TR = 17 s) was used to ...
Nadine Gaab, Christian Gaser, Tino Zaehle, Lutz Jancke, Gottfried Schlaug (Neuroimage, 200308)
functional-anatomy-pitch-memory-fmri-study-sparse-temporal-sampling.asp

49.

Cortical mechanisms for acquisition and performance of bimanual motor sequences.

We used functional magnetic resonance imaging to investigate the cortical mechanisms contributing to the acquisition and performance of a complex, bimanual motor sequence. To that aim, five subjects were trained on a difficult, asymmetrical finger ...
P De Weerd, K Reinke, L Ryan, T McIsaac, P Perschler, D Schnyer, T Trouard, A Gmitro (Neuroimage, 200308)
cortical-mechanisms-acquisition-performance-bimanual-motor-sequences.asp

50.

Simultaneous ERP and fMRI of the auditory cortex in a passive oddball paradigm.

Infrequent occurrences of a deviant sound within a sequence of repetitive standard sounds elicit the automatic mismatch negativity (MMN) event-related potential (ERP). The main MMN generators are located in the superior temporal cortex, but their number, ...
Einat Liebenthal, Michael L Ellingson, Marianna V Spanaki, Thomas E Prieto, Kristina M Ropella, Jeffrey R Binder (Neuroimage, 200308)
simultaneous-erp-fmri-auditory-cortex-passive-oddball-paradigm.asp