منابع مشابه
Attention, mechanisms of
1. Brief history of attention The problem of attention is the problem of selecting for active processing certain aspects of our physical environment (e.g., objects) or some ideas in our mind (which are stored in our memory). This problem is one of the oldest and most central issues in psychological science. Many great minds have wrestled with the definition of attention. In 1890, William James ...
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Recurrent neural networks with differentiable attention mechanisms have had success in generative and classification tasks. We show that the classification performance of such models can be enhanced by guiding a randomly initialized model to attend to salient regions of the input in early training iterations. We further show that, if explicit heuristics for guidance are unavailable, a model tha...
متن کاملIntrathalamic mechanisms of visual attention.
The classical model of visual processing emphasizes the lateral geniculate nucleus (LGN) as the major intermediary between the retina and visual cortex. Yet, anatomical findings inspired Francis Crick to suggest an alternative model in which the thalamic reticular nucleus, which envelops the LGN, acts as the "guardian" of visual cortex by modulating LGN activity. Recent work by McAlonan and col...
متن کاملThe mechanisms of involuntary attention.
We tested 3 mechanisms of involuntary attention: (1) a perceptual enhancement mechanism, (2) a response-decision mechanism, and (3) a serial-search mechanism. Experiment 1 used a response deadline technique to compare the perceptual enhancement and the decision mechanisms and found evidence consistent with the decision mechanism. Experiment 2 used a multiple-targets paradigm to compare the deci...
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Social attention is conveyed primarily by gaze, but also by head and body orientation. These cues not only signal a seen agent's direction of attention but are also used to infer their current goals and intentions. Here, we review recent research showing that different gaze, head and body orientations are represented by distinct neural mechanisms, and show that a statistical summary of recent n...
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences
سال: 1998
ISSN: 0962-8436,1471-2970
DOI: 10.1098/rstb.1998.0292