Visual Perception

151.

Objects automatically potentiate action: an fMRI study of implicit processing.

Behavioural data have shown that the perception of an object automatically potentiates motor components (affordances) of possible actions toward that object, irrespective of the subjects intention. We carried out an event-related fMRI study to ...
J Grèzes, M Tucker, J Armony, R Ellis, R E Passingham (Eur J Neurosci, 200306)
objects-automatically-potentiate-action-fmri-study-implicit-processing.asp

152.

Long-term perceptual specificity effects in recognition memory: the transformed pictures paradigm.

The effects of a study/test mismatch in the viewing mode of natural scenes on recognition memory performance were examined. At both encoding and retrieval, scenes were presented either by being divided into quarters that were displayed in a sequential ...
Colleen A Ray, Eyal M Reingold (Can J Exp Psychol, 200306)
long-term-perceptual-specificity-effects-recognition-memory.asp

153.

Another look at the effect of a surprising intervening event on negative priming.

Tipper et al. (1991) reported that negative priming is eliminated when a low-probability event separates presentation of the prime display from the probe display. This finding is perfectly consistent with at least three of the major accounts of negative ...
Jason P Leboe, Launa C Leboe, Bruce Milliken (Can J Exp Psychol, 200306)
look-effect-surprising-intervening-event-negative-priming.asp

154.

Affective priming with subliminally presented pictures.

Affective priming studies have demonstrated that subliminally presented prime words can exert an influence on responses towards positive or negative target stimuli. In the present series of experiments, it was investigated whether these findings can be ...
Dirk Hermans, Adriaan Spruyt, Jan De Houwer, Paul Eelen (Can J Exp Psychol, 200306)
affective-priming-subliminally-presented-pictures.asp

155.

Guidance of eye movements during conjunctive visual search: the distractor-ratio effect.

The distractor-ratio effect refers to the finding that search performance in a conjunctive visual search task depends on the relative frequency of two types or subsets of distractors when the total number of items in a display is fixed. Previously, Shen, ...
Jiye Shen, Eyal M Reingold, Marc Pomplun (Can J Exp Psychol, 200306)
guidance-eye-movements-conjunctive-visual-search-distractor-ratio.asp

156.

Brain activity during audiovisual speech perception: an fMRI study of the McGurk effect.

fMRI was used to assess the relationship between brain activation and the degree of audiovisual integration of speech information during a phoneme categorization task. Twelve subjects heard a speaker say the syllable /aba/ paired either with video of the ...
Jeffery A Jones, Daniel E Callan (Neuroreport, 200306)
brain-activity-audiovisual-speech-perception-fmri-study-mcgurk-effect.asp

157.

Four facets of a single brain: behaviour, cerebral blood flow/metabolism, neuronal activity and neurotransmitter dynamics.

Is functional neuroimaging a royal way to understand brain function or is it a new phrenology without an exact understanding what we measure? After two decades of imaging revolution, more and more authors ask this question. Brain functions are ...
Szabolcs Kéri, Balázs Gulyás (Neuroreport, 200306)
four-facets-single-brain-behaviour-cerebral-blood-flow-metabolism.asp

158.

The Wadsworth Center brain-computer interface (BCI) research and development program.

Brain-computer interface (BCI) research at the Wadsworth Center has focused primarily on using electroencephalogram (EEG) rhythms recorded from the scalp over sensorimotor cortex to control cursor movement in one or two dimensions. Recent and current ...
Jonathan R Wolpaw, Dennis J McFarland, Theresa M Vaughan, Gerwin Schalk (IEEE Trans Neural Syst Rehabil Eng, 200306)
wadsworth-center-brain-computer-interface-bci-research-development.asp

159.

Guiding movements with internal representations: a reach-and-grasp task.

We investigated participants ability to use internal representations of the environment to guide prehensile movements, when visual feedback was not available. Reaching and grasping performed with concurrent visual feedback was compared to conditions in ...
Alissa D Fourkas, Ronald G Marteniuk, Michael A Khan (Res Q Exerc Sport, 200306)
guiding-movements-internal-representations-reach-grasp-task.asp

160.

Binocular rivalry and perceptual multi-stability.

When different images are presented to the two eyes, binocular rivalry can occur - that is, perceptual alternations between the two monocular images (bi-stability) or between more than two percepts comprised of complementary portions of the two images ...
Nava Rubin (Trends Neurosci, 200306)
binocular-rivalry-perceptual-multi-stability.asp