Journal ArticleDOI
Selective Dorsal and Ventral Processing: Evidence for a Common Attentional Mechanism in Reaching and Perception
TLDR
The data demonstrate that discrimination performance is superior when the discrimination stimulus is also the target for manual aiming; when thediscrimination stimulus and point...Abstract:
The primate visual system can be divided into a ventral stream for perception and recognition and a dorsal stream for computing spatial information for motor action. How are selection mechanisms in both processing streams coordinated? We recently demonstrated that selection-for-perception in the ventral stream (usually termed “visual attention”) and saccade target selection in the dorsal stream are tightly coupled (Deubel & Schneider, 1996). Here we investigate whether such coupling also holds for the preparation of manual reaching movements. A dual-task paradigm required the preparation of a reaching movement to a cued item in a letter string. Simultaneously, the ability to discriminate between the symbols “E” and “∃” presented tachistoscopically within the surrounding distractors was taken as a measure of perceptual performance. The data demonstrate thatdiscrimination performance is superior when the discrimination stimulus is also the target for manual aiming; when the discrimination stimulus and point...read more
Citations
More filters
Journal ArticleDOI
The Theory of Event Coding (TEC): a framework for perception and action planning.
TL;DR: A new framework for a more adequate theoretical treatment of perception and action planning is proposed, in which perceptual contents and action plans are coded in a common representational medium by feature codes with distal reference, showing that the main assumptions are well supported by the data.
Journal ArticleDOI
Overlapping mechanisms of attention and spatial working memory.
Edward Awh,John Jonides +1 more
TL;DR: Evidence supporting the view that this process of visual selection is a key component of rehearsal in spatial working memory is presented, suggesting that spatial rehearsal recruits top-down processes that modulate the earliest stages of visual analysis.
Journal ArticleDOI
Brain states: top-down influences in sensory processing.
TL;DR: New findings on the diversity of top-down interactions show that cortical areas function as adaptive processors, being subject to attention, expectation, and perceptual task.
Journal ArticleDOI
Embodied language: A review of the role of the motor system in language comprehension
Martin H. Fischer,Rolf A. Zwaan +1 more
TL;DR: A growing body of research suggests that comprehending verbal descriptions of actions relies on an internal simulation of the described action, and the role of motor resonance during language comprehension is considered.
Journal ArticleDOI
Intention, action planning, and decision making in parietal-frontal circuits.
Richard A. Andersen,He Cui +1 more
TL;DR: This review covers new research on four components of this transformation process: planning, decision making, forward state estimation, and relative-coordinate representations.
References
More filters
Journal ArticleDOI
A feature-integration theory of attention
Anne Treisman,Garry A. Gelade +1 more
TL;DR: A new hypothesis about the role of focused attention is proposed, which offers a new set of criteria for distinguishing separable from integral features and a new rationale for predicting which tasks will show attention limits and which will not.
Journal ArticleDOI
Orienting of attention
TL;DR: This paper explores one aspect of cognition through the use of a simple model task in which human subjects are asked to commit attention to a position in visual space other than fixation by orienting a covert mechanism that seems sufficiently time locked to external events that its trajectory can be traced across the visual field in terms of momentary changes in the efficiency of detecting stimuli.
Journal ArticleDOI
Neural Mechanisms of Selective Visual Attention
Robert Desimone,John S. Duncan +1 more
TL;DR: The two basic phenomena that define the problem of visual attention can be illustrated in a simple example and selectivity-the ability to filter out un wanted information is illustrated.
Journal ArticleDOI
The Attention System of the Human Brain
TL;DR: Illustration de trois fonctions principales qui sont predominantes dans l'etude de l'intervention de l'sattention dans les processus cognitifs: 1) orientation vers des evenements sensoriels; 2) detection des signaux par processus focal; 3) maintenir la vigilance en etat d'alerte
Journal ArticleDOI
Effects of noise letters upon the identification of a target letter in a nonsearch task
TL;DR: In this paper, a 1-sec tachistoscopic exposure, Ss responded with a right or left leverpress to a single target letter from the sets H and K or S and C. The target always appeared directly above the fixation cross.