Global ETD Search
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Showing 1 to 20 of 20 for “"number processing"”.
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Neuronal and cognitive correlates of attentional and automatic semantic number processing
Number magnitude is assumed to be encoded in an analog visuo-spatial frame, which resembles a left-to-right oriented and logarithmically compressed mental number line. Some authors have suggested that also the semantic representation of multidigit numbers can be described by their location on the …
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The role of multi-digit number processing in the development of numerical cognition
… was to investigate the role of multi-digit number processing in the development of numeracy. The most influential contemporary cognitive model of numerical cognition (Triple-Code model by Dehaene, 1992) differentiates between modality-specific processes (processing of number words vs. Arabic …
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The development of number processing and its relation to other parietal functions in early childhood
… and occipito-temporal cortex (face and object processing), in order to investigate their contributions to the acquisition of formal arithmetic in the first year of schooling. We tested preschooler, first grader and adult subjects, using correlational cross-sectional and longitudinal approaches. …
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Connectivity analysis of brain function in children with foetal alcohol spectrum disorder and control children during number processing
… The effect of prenatal alcohol exposure on number processing in children was investigated in a functional magnetic resonance imaging (fMRI) study (Meintjes et al., 2007). The results indicate significant differences in activation between alcohol-exposed and non-exposed control children …
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The morphology of the intraparietal sulcus in children prenatally exposed to alcohol in a sample of children from the Western Cape, South Africa and its potential relationship with number processing
… and is known to play a critical role in number processing. Fetal alcohol spectrum disorders (FASD) result from prenatal exposure to alcohol and are particularly prevalent in the Western Cape region of South Africa. Arithmetic is a domain of cognitive function that is particularly …
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Räumliche Orientierung auf dem mentalen Zahlenstrahl : eine kombinierte Reaktionszeit- und fMRT-Studie
Semantic number magnitude is represented in an analogue visual-spacial system in the shape of a left-to-right oriented, logarithmically compressed mental number line; the most important evidence is the SNARC (Spatial Numerical Association of Response Codes)-effect (Dehaene, Bossini & Giraux, 1993). …
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Parietal dysfunction in children with prenatal alcohol exposure
… brain activation during symbolic and nonsymbolic number processing, and place learning in a virtual environment. These functional domains were investigated using tasks of proximity judgment and exact addition to assess neural correlates of symbolic number processing in 65 children (mean age ± SD = …
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Notations-, Aufgaben- und Strategiespezifität in der Zahlenverarbeitung : eine fMRT-Studie
… model of Dehaene and Cohen (1995) assumes a number processing network of different number representations. Most importantly, the inferior parietal lobule contains an abstract semantic magnitude representation. The model does not consider notation-, task- or strategy-specific differences. …
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Mathematics Experience and Format-specific Effects in Numerical Cognition
… of numerical information influences numerical processing. The format-independent view postulates that information from various formats (e.g. ‘3’ or ‘three’) is represented in a uniform numerical code and that format should thus have no influence on number manipulation. The format-specific view …
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Keine Zahl ohne Zeichen : der Einfluss der medialen Eigenschaften der DGS-Zahlzeichen auf deren mentale Verarbeitung
… of sign systems have an influence on the mental processing of these signs or not. This research question is investigated with the mental number processing of German deaf signers. The number system in the German Sign Language (Deutsche Gebärdensprache, DGS) differs from German spoken numbers in …
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Mental number representation as assessed by the number bisection task : a combined reaction time and fMRI study
… Magnetic Resonance Imaging (fMRI) study, the number bisection task as a verification paradigm was used to examine whether this task only relies on a quantitative representation of number magnitude as postulated by Dehaene and Cohen (1997) or perhaps also on other number representations and …
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MORE THAN FINGER COUNTING: SHARED RESOURCES BETWEEN FINGER TAPPING AND ARITHMETIC
… last two decades showing a relationship between number processing and sensorimotor processes. In addition, considerable evidence has been presented that suggest precursors of arithmetic skills in animals. This shows that arithmetic is not uniquely human and some of the relevant mechanisms may …
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Seeking the neural basis of grammar : English noun and verb morphological processing investigated with rapid event-related fMRI and intracortical electrophysiology
… involve separable brain regions, inflectional processing of the two categories may be done by the same process, 6.) Regularly and Irregularly inflected verbs show a double dissociation of activation in frontal and medial regions, 7.) Processing of English noun more than verb morphology may rely …
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Bilingualism and cognitive development: a study on the acquisition of number skills
… as it is speaking two languages that is the number field. Bilinguals and monolinguals children were asked to perform three different number tasks: number Stroop, verification and dot counting.Unlike in the study of Bialystok et al. (2004; 2005) who employed a classical Stroop task, no …
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A new framework for making sourcing decisions regarding low-volume, high-complexity products
… require complex computer systems - either rapid number processing, as in scientific applications, or massive data processing, as in large database applications. They are mostly custom-configured for each customer, each server specifically assembled, and each system specifically configured to meet …
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The Dual-Route Model of Order Judgment: Factors Influencing Task Performance and the Reverse Distance Effect
Numbers play an integral role in everyday life. Research on basic number processing aids in understanding how people make more complex uses of numbers (e.g., mathematics). In this thesis, I explored numerical processing in number comparison and order judgment tasks. In number comparison tasks, …
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Componenti spaziali della rappresentazione cognitiva della grandezza del numero
The humans process the numbers in a similar way to animals. There are countless studies in which similar performance between animals and humans (adults and/or children) are reported. Three models have been developed to explain the cognitive mechanisms underlying the number processing. The …
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Interactions between numbers and space : neurobehavioural evidence from children and adults
Mental number representations were examined in this thesis by asking participants to compare either numerical or spatial distances of visually presented number triplets (e.g. 57 64 92), a so-called "numerical landmark test". Varying numerical and spatial distances independently resulted in neutral, …
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Zwei Wege zur Paritätsentscheidung: eine fMRT-Studie zur Notations-/Modalitätsspezifität in der Zahlenverarbeitung
… Cohen (1995) as well as Dehaene et al. (2003), numbers are processed depending on notation, modality and task. Three codes are claimed to build a network of functional and anatomical number representations. First, an abstract semantic magnitude representation is assumed to be connected …
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Semantische Repräsentation, obligatorische Aktivierung und verbale Produktion arithmetischer Fakten
… Towards an anatomical and functional model of number processing. Mathematical Cognition, 1, 83-120. Dehaene, S. & Cohen, L. (1997). Cerebral pathways for calculation: double dissociation between rote verbal and quantitative knowledge of arithmetic. Cortex, 33, 219-250. Dehaene, S., Piazza, M., …