Attention

511.

Towards a theory of the laminar architecture of cerebral cortex: computational clues from the visual system.

One of the most exciting and open research frontiers in neuroscience is that of seeking to understand the functional roles of the layers of cerebral cortex. New experimental techniques for probing the laminar circuitry of cortex have recently been ...
Rajeev D S Raizada, Stephen Grossberg (Cereb Cortex, 200301)
towards-theory-laminar-architecture-cerebral-cortex-computational.asp

512.

Event-related potentials to Stroop and reverse Stroop stimuli.

In the Stroop task, the latency of response to a colour is either faster or slower in the presence of a congruent or incongruent colour-word (J. Exp. Psychol. 18 (1935) 643). Debate remains as to whether this effect occurs during early stimulus ...
Carmen M Atkinson, Karen A Drysdale, W R Fulham (Int J Psychophysiol, 200301)
event-related-potentials-stroop-reverse-stroop-stimuli.asp

513.

Paradox lost? Exploring the role of alpha oscillations during externally vs. internally directed attention and the implications for idling and inhibition hypotheses.

Although slow waves of the electroencephalogram (EEG) have been associated with attentional processes, the functional significance of the alpha component in the EEG (8.1-12 Hz) remains uncertain. Conventionally, synchronisation in the alpha frequency ...
Nicholas R Cooper, Rodney J Croft, Samuel J J Dominey, Adrian P Burgess, John H Gruzelier (Int J Psychophysiol, 200301)
paradox-lost-exploring-role-alpha-oscillations-externally-vs.asp

514.

Developmental changes in the processing of hierarchical shapes continue into adolescence.

The present study was designed to trace the normal development of local and global processing of hierarchical visual forms. We presented pairs of hierarchical shapes to children and adults and asked them to indicate whether the two shapes were the same ...
Catherine J Mondloch, Sybil Geldart, Daphne Maurer, Scania de Schonen (J Exp Child Psychol, 200301)
developmental-changes-processing-hierarchical-shapes-continue.asp

515.

The brains response to incidental intruded words during focal text processing.

The functional neuroanatomy associated with processing single words incidentally, outside focal attention, was investigated. We asked subjects (n = 15) to listen, focus on, and comprehend a story narrative, and then single, unrelated but meaningful words ...
Joseph Tracy, Adam Flanders, Saaussan Madi, Peter Natale, Nicole Delvecchio, Ayis Pyrros, Joseph Laskas (Neuroimage, 200301)
brain-s-response-incidental-intruded-words-focal-text-processing.asp

516.

Why are antisaccades slower than prosaccades? A novel finding using a new paradigm.

Eye movements away from a new object (antisaccades) are slower than towards it (prosaccades). This finding is assumed to reflect the fact that prosaccades to new objects are made reflexively, and that for antisaccades, reflexive eye movements have to be ...
Bettina Olk, Alan Kingstone (Neuroreport, 200301)
why-antisaccades-slower-prosaccades-novel-finding-new-paradigm.asp

517.

Cognitive performance and sleep quality in the elderly suffering from chronic insomnia. Relationship between objective and subjective measures.

OBJECTIVE: The objective of the present study was to evaluate the relationship between objective and subjective sleep quality and objective and subjective evaluation of cognitive performance in older adults suffering of chronic insomnia (using or not ...
Célyne H Bastien, Emilie Fortier-Brochu, Isabelle Rioux, Mélanie LeBlanc, Meagan Daley, Charles M Morin (J Psychosom Res, 200301)
cognitive-performance-sleep-quality-elderly-suffering-chronic.asp

518.

Large capacity storage of integrated objects before change blindness.

Normal people have a strikingly low ability to detect changes in a visual scene. This has been taken as evidence that the brain represents only a few objects at a time, namely those currently in the focus of attention. In the present study, subjects were ...
Rogier Landman, Henk Spekreijse, Victor A F Lamme (Vision Res, 200301)
large-capacity-storage-integrated-objects-change-blindness.asp

519.

Attentional modulation of self-motion perception.

Attentional effects on self-motion perception (vection) were examined by using a large display in which vertical stripes containing upward or downward moving dots were interleaved to balance the total motion energy for the two directions. The dots moving ...
Michiteru Kitazaki, Takao Sato (Perception, 2003)
attentional-modulation-self-motion-perception.asp

520.

L-Dopa medication remediates cognitive inflexibility, but increases impulsivity in patients with Parkinsons disease.

In the current study we investigated the role of dopamine in attentional and socio-emotional functioning by examining effects of withdrawing dopaminergic medication in patients with Parkinsons disease (PD). Patients "on" medication exhibited abnormal ...
Roshan Cools, Roger A Barker, Barbara J Sahakian, Trevor W Robbins (Neuropsychologia, 2003)
l-dopa-medication-remediates-cognitive-inflexibility-increases.asp