Results 21 to 30 of about 5,069 (253)
Effects of awareness on numerosity adaptation. [PDF]
PLoS ONE, 2013 Numerosity perception is a process involving several stages of visual processing. This study investigated whether distinct mechanisms exist in numerosity adaptation under different awareness conditions to characterize how numerosity perception occurs at ...
Wei Liu +4 more
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Numerosity Perception in Peripheral Vision [PDF]
Frontiers in Human Neuroscience, 2021 Peripheral vision has different functional priorities for mammals than foveal vision. One of its roles is to monitor the environment while central vision is focused on the current task. Becoming distracted too easily would be counterproductive in this perspective, so the brain should react to behaviourally relevant changes.
Li, Min Susan +3 more
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Visual Perception Supports Adults in Numerosity Processing and Arithmetical Performance
Frontiers in Psychology, 2021 Previous studies have found a correlation between numerosity processing and arithmetical performance. Visual perception has already been indicated as the shared cognitive mechanism between these two; however, these studies mostly focused on children.
Xinyao He +4 more
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Aging and Numerosity Estimation [PDF]
The Journals of Gerontology: Series B, 2007 Abstract In two experiments, young and older participants were asked to find the approximate number of dots in collections including between 40 and 460 dots. Experiment 1 showed that both age groups had comparable performance and no age-related differences in the power-function exponents for numerosity.
Lemaire, Patrick, Lecacheur, Mireille
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Numerosities are not ersatz numbers
Behavioral and Brain Sciences, 2021 Abstract In describing numerosity as “a kind of ersatz number,” Clarke and Beck fail to consider a familiar and compelling definition of numerosity, which conceptualizes numerosity as the cognitive counterpart of the mathematical concept of cardinality; numerosity is the magnitude, whereas number is a scale through which numerosity/cardinality is ...
Catarina Dutilh Novaes +1 more
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Scientific Data, 2023 The ability to handle non-symbolic numerosity has been recurrently linked to mathematical abilities. The accumulated data provide a rich resource that can reflect the underlying properties (i.e., dot ratio, area, convex hull, perimeters, distance, and ...
Dazhi Cheng +6 more
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Frontiers in Human Neuroscience, 2021 This study explores whether and how different tasks associated with approximate number system (ANS) ability are related to numeracy and cognitive reflection in adults.
Midori Tokita, Sumire Hirota
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iScience, 2023 Summary: Numerosity perception is a fundamental cognitive function in humans and animals. Using an individual difference approach with a comprehensive dataset (N = 249), we performed a voxel-based morphometry analysis to unravel the neuroanatomical ...
Xinyi Yuan +4 more
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Grouping mechanisms in numerosity perception [PDF]
Open Mind, 2020 Enumeration of a dot array is faster and easier if the items form recognizable subgroups. This phenomenon, which has been termed groupitizing, appears in children after one year of formal education and correlates with arithmetic abilities. We formulated and tested the hypothesis that groupitizing reflects an ability to sidestep counting by using ...
Lorenzo Ciccione, Stanislas Dehaene
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Numerosity estimation in visual stimuli in the absence of luminance-based cues. [PDF]
PLoS ONE, 2011 BackgroundNumerosity estimation is a basic preverbal ability that humans share with many animal species and that is believed to be foundational of numeracy skills.
Peter Kramer +2 more
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