Attention

131.

Rhythmic oscillations in the performance of a sustained attention task.

Attempts to sustain a narrow focus of attention over a long period of time are effortful and are punctuated by lapses. Most studies of sustained attention performance obscure the presence and pattern oflapses by reporting measures that are summed across ...
Kevin J Smith, Dominic A Valentino, James E Arruda (J Clin Exp Neuropsychol, 200306)
rhythmic-oscillations-performance-sustained-attention-task.asp

132.

Assessment of the state of activation of the cortical zones in humans during visual attention and selection.

The state of cortical activation during visual symbol shape and position selection tasks was assessed in humans in terms of the magnitude of prestimulus negativity (contingent negative variation, CNV) and the amplitude of the N1-P3 complex in evoked ...
I N Baranov-Krylov, I E Kanunikov, V T Shuvaev, D N Berlov, N A Kavshbaya (Neurosci Behav Physiol, 200306)
assessment-state-activation-cortical-zones-humans-visual-attention.asp

133.

Distractor interference in selective reaching: dissociating distance and grouping effects.

In the present experiment, the authors sought to differentiate between a distance and a grouping explanation for the symmetric versus asymmetric patterns of distractor interference in selective reaching. Participants (N = 16) pointed to a green target ...
Ron F Keulen, Jos J Adam, Martin H Fischer, Harm Kuipers, Jelle Jolles (J Mot Behav, 200306)
distractor-interference-selective-reaching-dissociating-distance.asp

134.

Cerebral networks linked to the event-related potential P300.

P300 is an event-related potential that is elicited by an oddball paradigm. In several neuropsychiatric diseases, differences in latencies and amplitude compared to healthy subjects have been reported. Because of its clinical significance, several ...
Helge Horn, Nadeem Syed, Heinrich Lanfermann, Konrad Maurer, Thomas Dierks (Eur Arch Psychiatry Clin Neurosci, 200306)
cerebral-networks-linked-event-related-potential-p.asp

135.

The effect of attentional cueing on conscious awareness of stimulus and response.

Attending to a cued location in space leads to faster reaction times when a stimulus is presented there. The reasons for this attentional effect, and its specific locus in the information-processing chain between stimulus and response, remain unclear. ...
Helen Johnson, Patrick Haggard (Exp Brain Res, 200306)
effect-attentional-cueing-conscious-awareness-stimulus-response.asp

136.

Attentional selection of superimposed surfaces cannot be explained by modulation of the gain of color channels.

When two differently colored, superimposed patterns of dots rotate in opposite directions, this yields the percept of two superimposed transparent surfaces. If observers are cued to attend to one set of dots, they are impaired in making judgments about ...
Jude F Mitchell, Gene R Stoner, Mazyar Fallah, John H Reynolds (Vision Res, 200306)
attentional-selection-superimposed-surfaces-cannot-explained.asp

137.

Oblique stimuli are seen best (not worst!) in naturalistic broad-band stimuli: a horizontal effect.

People with normal eyesight typically see horizontal and vertical gratings better than oblique gratings (Psychological Bulletin 78 (1972) 266; Perception 9 (1980) 37). In the present study we investigated whether this oblique effect anisotropy is still ...
Edward A Essock, J Kevin DeFord, Bruce C Hansen, Michael J Sinai (Vision Res, 200306)
oblique-stimuli-best-not-worst-naturalistic-broad-band-stimuli.asp

138.

Direct parameter specification of an attention shift: evidence from perceptual latency priming.

In the direct parameter specification (DPS) mode of sensorimotor control, response parameters can be specified by stimuli that are not consciously perceived [Psychological Research/Psychologische Forschung 52 (1990) 207]. DPS is contingent on the current ...
Ingrid Scharlau, Ulrich Ansorge (Vision Res, 200306)
direct-parameter-specification-attention-shift-evidence-perceptual.asp

139.

The role of spatial attention in the processing of facial expression: an ERP study of rapid brain responses to six basic emotions.

To investigate the time course of emotional expression processing, we recorded ERP responses to stimulus arrays containing neutral versus angry, disgusted, fearful, happy, sad, or surprised faces. In one half of the experiment, the task was to ...
Martin Eimer, Amanda Holmes, Francis P McGlone (Cogn Affect Behav Neurosci, 200306)
role-spatial-attention-processing-facial-expression-erp-study-rapid.asp

140.

Attentional capture within and between objects.

The present study addressed the question whether attentional capture by abrupt onsets is affected by object-like properties of the stimulus field. Observers searched for a target circle at one of four ends of two solid rectangles. In the focused ...
Karen Mortier, Mieke Donk, Jan Theeuwes (Acta Psychol (Amst), 200306)
attentional-capture-objects.asp