Attention

141.

Differential effect of distractor timing on localizing versus identifying visual changes.

When visual changes are accompanied by visual transients, such as in the case of saccades, eye blinks, and brief flickers, they often go unnoticed; this phenomenon is called change blindness (Rensink, R. A. (2002). Change detection. Annual Review of ...
Katsumi Watanabe (Cognition, 200306)
differential-effect-distractor-timing-localizing-versus-identifying.asp

142.

Age-related effects of attentional and oculomotor capture by onsets and color singletons as a function of experience.

The present experiment examined the degree to which experience with different stimulus characteristics affects attentional capture, particularly as related to aging. Participants were presented with onset target/color singleton distractor or color ...
Angela M Colcombe, Arthur F Kramer, David E Irwin, Mathew S Peterson, Stanley Colcombe, Sowon Hahn (Acta Psychol (Amst), 200306)
age-related-effects-attentional-oculomotor-capture-onsets-color.asp

143.

How many positions can we perceptually encode, one or many?

Here we show that our sensitivity for discriminating relative position across the visual field is limited. In experiment 1 we show that we are much worse at detecting a texture defined by the relative position of elements within an array than would be ...
R F Hess, G Barnes, S O Dumoulin, S C Dakin (Vision Res, 200306)
many-positions-perceptually-encode-one-or-many.asp

144.

Perceiving numbers causes spatial shifts of attention.

Number symbols are part of our everyday visual world. Here we show that merely looking at numbers causes a shift in covert attention to the left or right side, depending upon the numbers magnitude. This observation implies obligatory activation of number ...
Martin H Fischer, Alan D Castel, Michael D Dodd, Jay Pratt (Nat Neurosci, 200306)
perceiving-numbers-causes-spatial-shifts-attention.asp

145.

Nociceptive processing in the human brain of infrequent task-relevant and task-irrelevant noxious stimuli. A study with event-related potentials evoked by CO2 laser radiant heat stimuli.

Laser evoked potentials (LEPs) are nociceptive-related brain responses to activation of cutaneous nociceptors by laser radiant heat stimuli. We previously showed that LEP amplitude during the P2 period (approximately 400 ms) was increased by rare noxious ...
Valéry Legrain, Raymond Bruyer, Jean-Michel Guérit, Léon Plaghki (Pain, 200306)
nociceptive-processing-human-brain-infrequent-task-relevant-task.asp

146.

Mental workload while driving: effects on visual search, discrimination, and decision making.

The effects of mental workload on visual search and decision making were studied in real traffic conditions with 12 participants who drove an instrumented car. Mental workload was manipulated by having participants perform several mental tasks while ...
Miguel A Recarte, Luis M Nunes (J Exp Psychol Appl, 200306)
mental-workload-driving-effects-visual-search-discrimination-decision.asp

147.

Glucose effects on a continuous performance test of attention in adults.

Increases in plasma blood glucose levels modulate memory, mood, and, to some extent, attention in adults. Participants in the present study were administered glucose (10, 100, and 500 mg/kg, or 50 g) or placebo (23.7 mg saccharin) shortly prior to ...
Robert W Flint, Crystal Turek (Behav Brain Res, 200306)
glucose-effects-continuous-performance-test-attention-adults.asp

148.

The overlay interference task and object-selective visual attention.

A series of experiments was carried out to examine object-based visual attention in an interference task. Observers were presented with two transparently overlapping equilateral triangles forming a "Star of David". One of these triangles was darker than ...
Geoffrey W Stuart, Ken I McAnally, James W Meehan (Vision Res, 200306)
overlay-interference-task-object-selective-visual-attention.asp

149.

Mapping the genetic variation of executive attention onto brain activity.

Brain imaging data have repeatedly shown that the anterior cingulate cortex is an important node in the brain network mediating conflict. We previously reported that polymorphisms in dopamine receptor (DRD4) and monoamine oxidase A (MAOA) genes showed ...
Jin Fan, John Fossella, Tobias Sommer, Yanghong Wu, Michael I Posner (Proc Natl Acad Sci U S A, 200306)
mapping-genetic-variation-executive-attention-onto-brain-activity.asp

150.

Eye movements to smoking-related pictures in smokers: relationship between attentional biases and implicit and explicit measures of stimulus valence.

AIMS: To investigate biases in overt orienting of attention to smoking-related cues in cigarette smokers, and to examine the relationship between measures of visual orienting and the affective and motivational valence of smoking cues. DESIGN: Smokers and ...
Karin Mogg, Brendan P Bradley, Matt Field, Jan De Houwer (Addiction, 200306)
eye-movements-smoking-related-pictures-smokers-relationship.asp