Attention

1321.

Motor learning by observation: evidence from a serial reaction time task.

This study sought evidence of observational motor learning, a type of learning in which observation of the skilled performance of another person not only facilitates motor skill acquisition but does so by contributing to the formation of ...
C M Heyes, C L Foster (Q J Exp Psychol A, 200204)
motor-learning-observation-evidence-serial-reaction-time-task.asp

1322.

Delayed onset of inhibition of return in schizophrenia.

Peripheral visual cues occuring before a subsequent target result in an almost immediate facilitatory and then a later inhibitory effect on target detection. In a detailed parametric investigation, the authors compared schizophrenic subjects (SCZ) and ...
Abigail Larrison-Faucher, Kevin A Briand, Anne B Sereno (Prog Neuropsychopharmacol Biol Psychiatry, 200204)
delayed-onset-inhibition-return-schizophrenia.asp

1323.

Daytime sleepiness and its evaluation.

Basic models of sleepiness, focusing on the homeostatic and circadian components of sleepiness, are able to predict important fluctuations of sleepiness. However, they fail in explaining certain sleepiness phenomena, as for instance in insomnia patients. ...
Raymond Cluydts, Elke De Valck, Edwin Verstraeten, Paul Theys (Sleep Med Rev, 200204)
daytime-sleepiness-evaluation.asp

1324.

Rhythmic masking release: contribution of cues for perceptual organization to the cross-spectral fusion of concurrent narrow-band noises.

The contribution of temporal asynchrony, spatial separation, and frequency separation to the cross-spectral fusion of temporally contiguous brief narrow-band noise bursts was studied using the Rhythmic Masking Release paradigm (RMR). RMR involves the ...
Martine Turgeon, Albert S Bregman, Pierre A Ahad (J Acoust Soc Am, 200204)
rhythmic-masking-release-contribution-cues-perceptual-organization.asp

1325.

Relative damping improves linear mass-spring models of goal-directed movements.

A limitation of a simple linear mass-spring model in describing goal directed movements is that it generates rather slow movements when the parameters are kept within a realistic range. Does this imply that the control of fast movements cannot be ...
Marc H E de Lussanet, Jeroen B J Smeets, Eli Brenner (Hum Mov Sci, 200204)
relative-damping-improves-linear-mass-spring-models-goal-directed.asp

1326.

Temporal integration between visual images and visual percepts.

Using a temporal integration task, subjects in 5 experiments were expected to combine information from temporally separated visual presentations. Evidence from these experiments indicated that perceptual information can be integrated with previously ...
James R Brockmole, Ranxiao Frances Wang, David E Irwin (J Exp Psychol Hum Percept Perform, 200204)
temporal-integration-visual-images-visual-percepts.asp

1327.

Functional anatomy of visual search: regional segregations within the frontal eye fields and effective connectivity of the superior colliculus.

The ability to find targets embedded within complex visual environments requires the dynamic programming of visuomotor search behaviors. Functional magnetic resonance imaging was used to image subjects while they visually searched for targets embedded ...
Darren R Gitelman, Todd B Parrish, Karl J Friston, M-Marsel Mesulam (Neuroimage, 200204)
functional-anatomy-visual-search-regional-segregations-frontal-eye.asp

1328.

Impaired attention modulation of the blink reflex R3 component in Parkinsons disease: a non-task warning paradigm study.

PURPOSE: the aim of this experimental study was to evaluate the attention modulating actions on the polysynaptic component of blink reflex responses and especially of the R3 component in patients suffering from Parkinsons Disease (PD). To this end, a ...
Luciano Gabrielli, Paolo Nocita, Carlo Pasetti, Ubaldo Bonuccelli, Grazia DellAgnello, Maria Chiara Carboncini, Bruno Rossi (Int J Psychophysiol, 200204)
impaired-attention-modulation-blink-reflex-r-component-parkinson-s.asp

1329.

Dynamics of hand preference in 4 year-old children.

Hand preference in groups of 4 year-old children towards either end of the skill continuum (as determined by the Movement ABC test) was explored by means of a catching task in which the direction of approach of the ball was used as a control parameter ...
M S Rostoft, H Sigmundsson, H T A Whiting, R P Ingvaldsen (Behav Brain Res, 200204)
dynamics-hand-preference-year-old-children.asp

1330.

Sustained attention deficit in bipolar disorder.

BACKGROUND: Recovery in bipolar disorder is central to its definition but is rarely complete. Previous work has suggested that neuropsychological impairment persists during the euthymic state but has been confounded partly by mild affective symptoms in ...
Luke Clark, Susan D Iversen, Guy M Goodwin (Br J Psychiatry, 200204)
sustained-attention-deficit-bipolar-disorder.asp