A Specific Deficit for Numbers in a Case of Dense Acalculia

Cipolotti, Lisa; Butterworth, Brian; Denes, Gianfranco

doi:10.1093/brain/114.6.2619

Cited by 222 publications

(94 citation statements)

References 31 publications

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“…The overarching results from this rapidly growing body of research are consistent with a large body of neuropsychological evidence (Cipolotti et al, 1991;Dehaene et al, 2003). Specifically, neuroimaging research, like preceding neuropsychological studies, has suggested the bilateral parietal lobes, and specifically the bilateral intraparietal sulci, as important brain regions for processing the quantity of a discrete set of items (i.e.…”

Section: Introductionsupporting

confidence: 53%

Common and distinct brain regions in both parietal and frontal cortex support symbolic and nonsymbolic number processing in humans: A functional neuroimaging meta-analysis

et al. 2017

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Common and distinct brain regions in both parietal and frontal cortex support symbolic and nonsymbolic number processing in humans: A functional neuroimaging meta-analysis, NeuroImage, http://dx.doi.org/10. 1016/j.neuroimage.2016.10.028 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting galley proof before it is published in its final citable form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. analyses demonstrated anatomically distinct fronto-parietal activation for symbolic and non-symbolic processing. Therefore, symbolic and non-symbolic numbers are subserved by format-dependent and abstract neural systems. Moreover, the present results suggest that regions across the parietal cortex, not just the intraparietal sulcus, are engaged in both symbolic and non-symbolic number processing, challenging the notion that the 2 intraparietal sulcus is the key region for abstract number processing. Additionally, our analyses indicate that the frontal cortex subserve magnitude representations rather than non-numerical cognitive processes associated with number tasks, thereby highlighting the importance of considering both frontal and parietal regions as important for number processing.

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Section: Introductionsupporting

confidence: 53%

Common and distinct brain regions in both parietal and frontal cortex support symbolic and nonsymbolic number processing in humans: A functional neuroimaging meta-analysis

et al. 2017

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“…They are consistent with at least two previous studies. In a patient study, Cipolotti et al (1991) found that the patient had impaired number processing but intact classifier processing. Wei et al (2012) showed that quantifier processing did not rely on the IPS, but rather on the temporal and frontal cortices.…”

Section: Discussionmentioning

confidence: 99%

Neural correlates of quantity processing of numeral classifiers.

Cui¹,

Yu²,

Hong³

et al. 2013

Neuropsychology

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Objective: Classifiers play an important role in describing the quantity information of objects. Few studies have been conducted to investigate the brain organization for quantity processing of classifiers. In the current study, we investigated whether activation of numeral classifiers was specific to the bilateral inferior parietal areas, which are believed to process numerical magnitude. Method: Using functional MRI, we explored the neural correlates of numeral classifiers, as compared with those of numbers, dot arrays, and nonquantity words (i.e., tool nouns). Results: Our results showed that numeral classifiers and tool nouns elicited greater activation in the left inferior frontal lobule and left middle temporal gyrus than did numbers and dot arrays, but numbers and dot arrays had greater activation in the middle frontal gyrus, precuneus, and the superior and inferior parietal lobule in the right hemisphere. No differences were found between numeral classifiers and tool nouns. Conclusion: The results suggest that quantity processing of numeral classifiers is independent of that of numbers and dot arrays, supporting the notation-dependent hypothesis of quantity processing.

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“…The regions of damage that lead to temporal deficits also frequently cause spatial, numerical and velocity perception deficits (e.g. Cipolotti et al 1991;Basso et al 1996;Battelli et al 2003;Becchio & Bertone 2006;Danckert et al 2007, see also Cavezian et al 2007;Zamarian et al 2007). From the point of view of ATOM, neuropsychological patient studies can be indicative of overlapping mechanisms, but the types of lesion that patients usually suffer are too large to allow structural conclusions to be drawn.…”

Section: The Role Of the Parietal Cortex In Magnitude Processingmentioning

confidence: 99%

The parietal cortex and the representation of time, space, number and other magnitudes

Bueti

Walsh

2009

Phil. Trans. R. Soc. B

675

595

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The development of sub-disciplines within cognitive neuroscience follows common sense categories such as language, audition, action, memory, emotion and perception among others. There are also well-established research programmes into temporal perception, spatial perception and mathematical cognition that also reflect the subjective impression of how experience is constructed. There is of course no reason why the brain should respect these common sense, text book divisions and, here, we discuss the contention that generalized magnitude processing is a more accurate conceptual description of how the brain deals with information about time, space, number and other dimensions. The roots of the case for linking magnitudes are based on the use to which magnitude information is put (action), the way in which we learn about magnitudes (ontogeny), shared properties and locations of magnitude processing neurons, the effects of brain lesions and behavioural interference studies. Here, we assess this idea in the context of a theory of magnitude, which proposed common processing mechanisms of time, space, number and other dimensions.

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A Specific Deficit for Numbers in a Case of Dense Acalculia

Cited by 222 publications

References 31 publications

Common and distinct brain regions in both parietal and frontal cortex support symbolic and nonsymbolic number processing in humans: A functional neuroimaging meta-analysis

Common and distinct brain regions in both parietal and frontal cortex support symbolic and nonsymbolic number processing in humans: A functional neuroimaging meta-analysis

Neural correlates of quantity processing of numeral classifiers.

The parietal cortex and the representation of time, space, number and other magnitudes

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