The global modulation of feature-based attention: Enhancement or suppression?
نویسندگان
چکیده
منابع مشابه
Does modulation of selective attention to features reflect enhancement or suppression of neural activity?
Numerous studies have demonstrated that selective attention to color is associated with a larger neural response under attend than ignore conditions, but have not addressed whether this difference reflects enhanced activity under attend or suppressed activity under ignore. In this study, a color-neutral condition was included, which presented stimuli physically identical to those under attend a...
متن کاملDistinct attention networks for feature enhancement and suppression in vision.
Attention biases sensory processing toward neurons containing information about behaviorally relevant events. These attentional biases apparently reflect the combined influence of feature enhancement and suppression. We examined the separate influence of enhancement and suppression in visual processing by determining whether responses to an unattended flicker were modulated when the flicker fea...
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Stimuli appearing in the surround of the classical receptive field (CRF) can reduce neuronal firing and perceived contrast of a preferred stimulus in the CRF, a phenomenon referred to as surround suppression. Suppression is greatest when the surrounding stimulus has the same orientation and spatial frequency (SF) as the central target. Although spatial attention has been shown to influence surr...
متن کاملSuppression effects in feature-based attention.
Attending to a feature enhances visual processing of that feature, but it is less clear what occurs to unattended features. Single-unit recording studies in middle temporal (MT) have shown that neuronal modulation is a monotonic function of the difference between the attended and neuron's preferred direction. Such a relationship should predict a monotonic suppressive effect in psychophysical pe...
متن کاملFeature-Based Attention Elicits Surround Suppression in Feature Space
It is known that focusing attention on a particular feature (e.g., the color red) facilitates the processing of all objects in the visual field containing that feature [1-7]. Here, we show that such feature-based attention not only facilitates processing but also actively inhibits processing of similar, but not identical, features globally across the visual field. We combined behavior and elect...
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ژورنال
عنوان ژورنال: Advances in Psychological Science
سال: 2020
ISSN: 1671-3710
DOI: 10.3724/sp.j.1042.2020.00566