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Showing 1 to 11 of 11 for “"Subitizing"”.
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Visual Enumeration: Subitizing and Its Nature
To examine the role of subitizing in ongoing visual enumeration processes, three experiments were conducted using saccade-continent display change technique and peripheral preview paradigm. The results shows that numerical information of up to 3 or 4 items can be quickly enumerated from an …
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Subitizing Activity: Item Orientation with Regard to Number Abstraction
Subitizing, a quick apprehension of the numerosity of a small set of items, is inconsistently utilized by preschool educators to support early number understandings (Sarama & Clements, 2009). The purpose of this qualitative study is to investigate the relationship between children’s number …
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Subitizing And Counting: Preattentive And Attentive Processing In Visual Enumeration
Subitizing, the process of visual enumeration when there are fewer than four items, is rapid (40-100 msec/item), accurate and effortless. In contrast, counting, the process of enumerating more than four items is comparatively slow (250-350 msec/item), effortful and error prone. Why does this occur? …
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Examining Children’s Conceptual Subitizing Skill and its Role in Supporting Math Achievement
… investigates the development of the conceptual subitizing skill, the ability to quickly and accurately recognize quantities above 4 items, and its relation to mathematics achievement in Grade 2 students. Both reaction time (RT) and strategy use to enumerate patterned structures of 4 to 10 dots …
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Visual Enumeration and Estimation: Brain mechanisms, Attentional demands and Number representations.
… I demonstrated that, in visual enumeration, subitizing and counting are dissociable processes and they rely on different brain structures. This was done through a neuropsychological single case study as well as through the first large sample neuropsychological group study using a voxel-based …
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How many can you see at a glance? The role of attention in visual enumeration
… of 1 to about 4 items, a process termed "subitizing", and the slow and error-prone enumeration of larger numerosities referred to as "counting". Further to a functional dichotomy between these two mechanisms, an attentional dichotomy has been proposed. Subitizing has been thought of as a …
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Visual saliency computation for image analysis
… on three challenging datasets. 4) Salient Object Subitizing. We propose a new visual saliency computation task, called Salient Object Subitizing, which is to predict the existence and the number of salient objects in an image using holistic cues. To this end, we present an image dataset of about …
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Embodied mathematics by interactive sketching
… capabilities such as categorizing objects, subitizing, and part-whole analysis. Unfortunately, current practice of abstract math often requires us to memorize rules of manipulation, which are cognitively arbitrary, severed from intuitive grounding, and have mechanics and metaphors of their …
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Non-symbolic exact quantity representation in a language-impaired population
… for recognizing small exact quantities (subitizing) and approximating quantities larger than three or four (analog magnitude estimation). To test this, previous studies have asked adult participants who have limited or no access to counting language to represent non-symbolic exact …
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Bilingualism and cognitive development: a study on the acquisition of number skills
… their monolingual peers in counting items in the subitizing range only, whereas they were slower than their peers when they counted from 4 to 9 dots. This latter result, in particular, is consistent with many psycholinguistic studies claiming that bilinguals are disadvantaged in tasks requiring …
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Enhancing Early Number Learning: Effects of an 8- Week Abacus Training Intervention on Subitising, Counting, and Motivation
“Subitizing and counting are children’s main strategies for quantification” (Sarama & Clements, 2009, p. 79). The development of subitising and counting skills and their relationship have attracted considerable attention from researchers from both cognitive psychology and mathematics education. …