Attention

481.

The word frequency effect for recognition memory and the elevated-attention hypothesis.

Empirical tests were conducted on the elevated-attention hypothesis that low-frequency (LF) words are better recognized than high-frequency (HF) words because LF words attract more attention than do HF words (e.g., Glanzer & Adams, 1990). The ...
Kenneth J Malmberg, Thomas O Nelson (Mem Cognit, 200301)
word-frequency-effect-recognition-memory-elevated-attention-hypothesis.asp

482.

Effects of differences in interreinforcer intervals between past and current schedules on fixed-interval responding.

Undergraduates were exposed to a mixed fixed-ratio differential-reinforcement-of-low-rate schedule. Values of the schedule components were adjusted so that interreinforcer intervals in one component were longer than those in another component. Following ...
Hiroto Okouchi (J Exp Anal Behav, 200301)
effects-differences-interreinforcer-intervals-past-current-schedules.asp

483.

New objects, not new features, trigger the attentional blink.

When two different targets must be selected from a rapid serial visual presentation (RSVP) of images, perception of the second target will be markedly reduced if it is presented within about a half second of the first. Known as the attentional blink ...
Jane E Raymond (Psychol Sci, 200301)
new-objects-not-new-features-trigger-attentional-blink.asp

484.

A distinct neurocognitive phenotype in female fragile-X premutation carriers assessed with visual attention tasks.

Premature ovarian failure (POF) and underlying hormonal changes are recognized as a distinct phenotype in female fragile-X premutation carriers. Neurocognitive deficits, in particular mental retardation, are associated with the full mutation in males and ...
Jean Steyaert, Eric Legius, Martine Borghgraef, Jean-Pierre Fryns (Am J Med Genet, 200301)
distinct-neurocognitive-phenotype-female-fragile-x-premutation.asp

485.

Crossmodal and intermodal attention modulate event-related brain potentials to tactile and auditory stimuli.

An increasing number of animal and human studies suggests that different sensory systems share spatial representations in the brain. The aim of the present study was to test whether attending to auditory stimuli presented at a particular spatial location ...
Kirsten Hötting, Frank Rösler, Brigitte Röder (Exp Brain Res, 200301)
crossmodal-intermodal-attention-modulate-event-related-brain.asp

486.

High frequency repetitive transcranial magnetic over the medial cerebellum induces a shift in the prefrontal electroencephalography gamma spectrum: a pilot study in humans.

In the present study the anatomical projections from the medial cerebellum to the prefrontal cortex (PFC) were investigated in healthy human subjects, using high frequency repetitive transcranial magnetic (rTMS) stimulation and electroencephalography ...
Dennis J L G Schutter, Jack van Honk, Alfredo A L dAlfonso, Jiska S Peper, Jaak Panksepp (Neurosci Lett, 200301)
high-frequency-repetitive-transcranial-magnetic-over-medial.asp

487.

The effects of methylphenidate on prepulse inhibition during attended and ignored prestimuli among boys with attention-deficit hyperactivity disorder.

RATIONALE AND OBJECTIVES: The present study investigated attentional modification of prepulse inhibition of startle among boys with and without attention-deficit hyperactivity disorder (ADHD). Two hypotheses were tested: (1) whether ADHD is associated ...
Larry W Hawk, Andrew R Yartz, William E Pelham, Thomas M Lock (Psychopharmacology (Berl), 200301)
effects-methylphenidate-prepulse-inhibition-attended-ignored.asp

488.

Brain activations during visual search: contributions of search efficiency versus feature binding.

We investigated the involvement of the parietal cortex in binding features during visual search using functional magnetic resonance imaging. We tested 10 subjects in four visual search tasks across which we independently manipulated (1) the requirement ...
A C Nobre, J T Coull, V Walsh, C D Frith (Neuroimage, 200301)
brain-activations-visual-search-contributions-search-efficiency.asp

489.

The effect of training distinct neurofeedback protocols on aspects of cognitive performance.

The use of neurofeedback as an operant conditioning paradigm has disclosed that participants are able to gain some control over particular aspects of their electroencephalogram (EEG). Based on the association between theta activity (4-7 Hz) and working ...
David Vernon, Tobias Egner, Nick Cooper, Theresa Compton, Claire Neilands, Amna Sheri, John Gruzelier (Int J Psychophysiol, 200301)
effect-training-distinct-neurofeedback-protocols-aspects-cognitive.asp

490.

Cognitive and brain consequences of conflict.

Tasks involving conflict between stimulus dimensions have been shown to activate dorsal anterior cingulate and prefrontal areas. It has been proposed that the dorsal anterior cingulate is involved a domain general process of monitoring conflict, while ...
Jin Fan, Jonathan I Flombaum, Bruce D McCandliss, Kathleen M Thomas, Michael I Posner (Neuroimage, 200301)
cognitive-brain-consequences-conflict.asp