scholarly journals Numerical magnitude processing impairments in genetic syndromes: a cross-syndrome comparison of Turner and 22q11.2 deletion syndromes

2016 ◽  
Vol 20 (6) ◽  
pp. e12458 ◽  
Author(s):  
Carmen Brankaer ◽  
Pol Ghesquière ◽  
Anke De Wel ◽  
Ann Swillen ◽  
Bert De Smedt
Keyword(s):  
Numerical Magnitude ◽  
Genetic Syndromes ◽  
22Q11.2 Deletion ◽  
Magnitude Processing ◽  
Deletion Syndromes

scholarly journals Symbolic Numerical Magnitude Processing Is as Important to Arithmetic as Phonological Awareness Is to Reading

PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0151045 ◽  
Author(s):  
Kiran Vanbinst ◽  
Daniel Ansari ◽  
Pol Ghesquière ◽  
Bert De Smedt
Keyword(s):  
Phonological Awareness ◽  
Numerical Magnitude ◽  
Magnitude Processing

Developmental Dyscalculia in Adults: Beyond Numerical Magnitude Impairment

2017 ◽  
Vol 51 (6) ◽  
pp. 600-611 ◽  
Author(s):  
Alice De Visscher ◽  
Marie-Pascale Noël ◽  
Mauro Pesenti ◽  
Valérie Dormal
Keyword(s):  
Mental Representation ◽  
Healthy Adults ◽  
Numerical Magnitude ◽  
Developmental Dyscalculia ◽  
Common System ◽  
The Core ◽  
Magnitude Processing ◽  
Core Deficit ◽  
Face Categorization ◽  
Numerical Magnitudes

Numerous studies have tried to identify the core deficit of developmental dyscalculia (DD), mainly by assessing a possible deficit of the mental representation of numerical magnitude. Research in healthy adults has shown that numerosity, duration, and space share a partly common system of magnitude processing and representation. However, in DD, numerosity processing has until now received much more attention than the processing of other non-numerical magnitudes. To assess whether or not the processing of non-numerical magnitudes is impaired in DD, the performance of 15 adults with DD and 15 control participants was compared in four categorization tasks using numerosities, lengths, durations, and faces (as non-magnitude-based control stimuli). Results showed that adults with DD were impaired in processing numerosity and duration, while their performance in length and face categorization did not differ from controls’ performance. Our findings support the idea of a nonsymbolic magnitude deficit in DD, affecting numerosity and duration processing but not length processing.

Thyroid gland and carotid artery anomalies in 22q11.2 deletion syndromes

2009 ◽  
Vol 119 (8) ◽  
pp. 1495-1500 ◽  
Author(s):  
John R. de Almeida ◽  
Adrian L. James ◽  
Blake C. Papsin ◽  
Rosanna Weksburg ◽  
Howard Clark ◽  
...  
Keyword(s):  
Thyroid Gland ◽  
Carotid Artery ◽  
22Q11.2 Deletion ◽  
Deletion Syndromes

scholarly journals Numerical Magnitude Processing in Deaf Adolescents and Its Contribution to Arithmetical Ability

2021 ◽  
Vol 12 ◽  
Author(s):  
Lilan Chen ◽  
Yan Wang ◽  
Hongbo Wen
Keyword(s):  
Hearing Loss ◽  
Cognitive Abilities ◽  
Close Association ◽  
Form Perception ◽  
Numerical Magnitude ◽  
Congenital Deafness ◽  
Mathematical Performance ◽  
Magnitude Processing ◽  
Arithmetic Computation ◽  
Visual Form Perception

Although most deaf individuals could use sign language or sign/spoken language mix, hearing loss would still affect their language acquisition. Compensatory plasticity holds that the lack of auditory stimulation experienced by deaf individuals, such as congenital deafness, can be met by enhancements in visual cognition. And the studies of hearing individuals have showed that visual form perception is the cognitive mechanism that could explain the association between numerical magnitude processing and arithmetic computation. Therefore, we examined numerical magnitude processing and its contribution to arithmetical ability in deaf adolescents, and explored the differences between the congenital and acquired deafness. 112 deaf adolescents (58 congenital deafness) and 58 hearing adolescents performed a series of cognitive and mathematical tests, and it was found there was no significant differences between the congenital group and the hearing group, but congenital group outperformed acquired group in numerical magnitude processing (reaction time) and arithmetic computation. It was also found there was a close association between numerical magnitude processing and arithmetic computation in all deaf adolescents, and after controlling for the demographic variables (age, gender, onset of hearing loss) and general cognitive abilities (non-verbal IQ, processing speed, reading comprehension), numerical magnitude processing could predict arithmetic computation in all deaf adolescents but not in congenital group. The role of numerical magnitude processing (symbolic and non-symbolic) in deaf adolescents' mathematical performance should be paid attention in the training of arithmetical ability.

scholarly journals Developmental Relations between Mathematics Anxiety, Symbolic Numerical Magnitude Processing, and Arithmetic Skills from First to Second Grade

2021 ◽  
Author(s):  
Riikka Mononen ◽  
Markku Niemivirta ◽  
Johan Korhonen ◽  
Marcus Lindskog ◽  
Anna Tapola
Keyword(s):  
Mathematics Anxiety ◽  
Performance Test ◽  
Longitudinal Research ◽  
Rank Order ◽  
Change Score ◽  
Mathematics Performance ◽  
Numerical Magnitude ◽  
Magnitude Processing ◽  
And Gender ◽  
Over Time

We investigated the levels and changes in mathematics anxiety (MA), symbolic numerical magnitude processing (SNMP) and arithmetic skills, and how those changes are linked to each other. Children’s (n = 264) MA, SNMP and arithmetic skills were measured in Grade 1, and again in Grade 2, including also a mathematics performance test. All three constructs correlated significantly within each time point, and the rank-order stability over time was high, particularly in SNMP and arithmetic skills. By means of latent change score modeling, we found overall increases in SNMP and arithmetic skills over time, but not in MA. Most interestingly, changes in arithmetic skills and MA were correlated (i.e., steeper increase in arithmetic skills was linked with less steep increase in MA), as were changes in SNMP and arithmetic skills (i.e., improvement in SNMP was associated with improvement in arithmetic skills). Only the initial level of arithmetic skills and change in it predicted mathematics performance. The only gender difference, in favour of boys, was found in SNMP skills. The differential effects associated with MA (developmentally only linked with arithmetic skills) and gender (predicting only changes in SNMP) call for further longitudinal research on the different domains of mathematical skills.

scholarly journals Symbols are special: An fMRI adaptation study of symbolic, nonsymbolic and non-numerical magnitude processing in the human brain

2019 ◽  
Author(s):  
H Moriah Sokolowski ◽  
Zachary Hawes ◽  
Lien Peters ◽  
Daniel Ansari
Keyword(s):  
Human Brain ◽  
Processing System ◽  
Number Processing ◽  
Numerical Magnitude ◽  
Physical Size ◽  
Parietal Lobes ◽  
Magnitude Processing ◽  
The Right ◽  
Fmri Adaptation ◽  
Symbolic Number

Humans have the unique ability to represent and manipulate symbols. It is widely believed that this ability is rooted in an evolutionarily ancient system used to process nonsymbolic quantities in the human brain. In the current study, we used an fMRI adaptation paradigm to isolate the representations of symbols, quantities, and physical size in forty-five human adults. Results indicate that the neural correlates supporting symbolic number processing are entirely distinct from those supporting nonsymbolic magnitude processing. At the univariate level, symbolic number processing is associated with activation in the left inferior parietal lobule, whereas the processing of nonsymbolic magnitudes (both quantity and physical size), relates to activation in the right intraparietal sulcus. At the multivariate level, normalized patterns of activation for symbolic number processing exhibit a dissimilar pattern of activation compared to nonsymbolic magnitude processing in both the left and right parietal lobes. Additionally, the patterns of activation that associate with quantity and physical size are practically indistinguishable from one another. These findings challenge the longstanding belief that the culturally acquired ability to conceptualize symbolic numbers is rooted in an evolutionarily ancient system for nonsymbolic magnitude processing. Moreover, these data reveal that the system used to process nonsymbolic numbers may actually be a general magnitude processing system used to process numerical and non-numerical magnitudes. These findings highlight the need for the field to shift away from exploring how symbols are grounded in analog nonsymbolic representations, and toward more complex questions related to the neural consequences of learning symbolic numbers.

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