منابع مشابه
A Neural Network for Attentional Spotlight
According to space-based theory, visual attention is limited to a local region in space called the attentional eld. Visual information within the attentional eld is enhanced for further processing while information outside is suppressed. There is evidence that enhancement and suppression are achieved with dynamic weighting of network activity. This paper discusses a neural network that generate...
متن کاملDarkness beyond the light: attentional inhibition surrounding the classic spotlight.
The aim of the present investigation was to determine the nature and spatial distribution of selective visual attention. Using cortical source localization of ERP data corresponding to 60 task-irrelevant stimuli across the visual field, we assessed attention effects on visual processing. Consistent with previous findings, visual processing was enhanced at the attended spatial location. In addit...
متن کاملA neuronal model of attentional spotlight: parietal guiding the temporal.
Recent studies have reported an attentional feedback that highlights neural responses as early along the visual pathway as the primary visual cortex. Such filtering would help in reducing informational overload and in performing serial visual search by directing attention to individual locations in the visual field. The magnocellular (M) and parvocellular (P) subdivisions are two of the major p...
متن کاملAttentional selection of noncontiguous locations: the spotlight is only transiently "split".
It is still a matter of debate whether observers can attend simultaneously to more than one location. Using essentially the same paradigm as was used previously by N. P. Bichot, K. R. Cave, and H. Pashler (1999), we demonstrate that their finding of an attentional "split" between separate target locations only reflects the early phase of attentional selection. Our subjects were asked to compare...
متن کاملTemporal Dynamics of the Attentional Spotlight: Neuronal Correlates of Attentional Capture and Inhibition of Return in Early Visual Cortex
A stimulus that suddenly appears in the corner of the eye inevitably captures our attention, and this in turn leads to faster detection of a second stimulus presented at the same position shortly thereafter. After about 250 msec, however, this effect reverses and the second stimulus is detected faster when it appears far away from the first. Here, we report a potential physiological correlate o...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2017
ISSN: 1534-7362
DOI: 10.1167/17.10.1324