Typicality Sharpens Object Representations in Object-Selective Cortex
نویسندگان
چکیده
منابع مشابه
Typicality sharpens category representations in object-selective cortex
The purpose of categorization is to identify generalizable classes of objects whose members can be treated equivalently. Within a category, however, some exemplars are more representative of that concept than others. Despite long-standing behavioral effects, little is known about how typicality influences the neural representation of real-world objects from the same category. Using fMRI, we sho...
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Does the typicality of an object affect how we identify it? When we produce initial reference to a visible object, we are influenced by a variety of factors, including what is visually salient (bottom-up influences) as well as our previous experiences with the object (top-down influences). In this study, we seek to understand how the top-down influence of typicality affects initial reference to...
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Object-selective cortical regions exhibit a decreased response when an object stimulus is repeated (repetition suppression, RS). RS is often associated with priming: reduced response times and increased accuracy for repeated stimuli. It is unknown whether RS reflects stimulus-specific repetition, the associated changes in response time, or the combination of the two. To address this question, w...
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We present a semantic model of typicality of concept members in description logics that accords well with a binary, globalist cognitive model of class membership and typicality. We define a general preferential semantic framework for reasoning with object typicality in description logics. We propose the use of feature vectors to rank concept members according to their defining and characteristi...
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Detecting a change in a visual stimulus is particularly difficult when it is accompanied by a visual disruption such as a saccade or flicker. In order to say whether a stimulus has changed across such a disruption, some neural trace must persist. Here we investigated whether two different regions of the human extrastriate visual cortex contain neuronal populations encoding such a trace. Partici...
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ژورنال
عنوان ژورنال: Journal of Vision
سال: 2013
ISSN: 1534-7362
DOI: 10.1167/13.9.127