THREE PARIETAL CIRCUITS FOR NUMBER PROCESSING

@article{Dehaene2003THREEPC,
  title={THREE PARIETAL CIRCUITS FOR NUMBER PROCESSING},
  author={Stanislas Dehaene and Manuela Piazza and Philippe Pinel and Laurent D. Cohen},
  journal={Cognitive Neuropsychology},
  year={2003},
  volume={20},
  pages={487 - 506}
}
Did evolution endow the human brain with a predisposition to represent and acquire knowledge about numbers? Although the parietal lobe has been suggested as a potential substrate for a domain-specific representation of quantities, it is also engaged in verbal, spatial, and attentional functions that may contribute to calculation. To clarify the organisation of number-related processes in the parietal lobe, we examine the three-dimensional intersection of fMRI activations during various… 

A MEG Study on the Processing of Time and Quantity: Parietal Overlap but Functional Divergence

TLDR
Parietal overlap as well as dissociations between these two dimensions demonstrate an overlap between the neural substrates for processing duration and quantity and indicates that the same parietal sites rule differently non-numerical and numerical dimensions, as parts of broader networks.

Specialization in the Human Brain: The Case of Numbers

TLDR
Using dynamic causal modeling as a tool to disentangle neuronal specialization across regions that are commonly activated, it is found that the connectivity between the left and right intraparietal sulci is format-dependent, supporting the idea that numerical representation is subserved by multiple mechanisms within the same parietal regions.

Electrophysiological evidence for differential processing of numerical quantity and order in humans.

Brain Mechanisms of Arithmetic: A Crucial Role for Ventral Temporal Cortex

TLDR
This work reexamined the contribution of the IPS, SPL, and pITG to arithmetic by recording intracranial electroencephalography signals while participants solved addition problems and shows how high-frequency broadband activity is modulated by problem size.

Processing magnitudes within the parietal cortex

TLDR
This chapter reviews the many recent behavioural, lesional and brain imaging studies demonstrating functional interactions, as well as the cerebral bases underlying magnitude processing in humans and, when relevant, in monkeys, and makes it clear that the areas around the intraparietal sulcus host both common and partially distinct and specific representations and mechanisms for numerosity, space and duration processing.
...

References

SHOWING 1-10 OF 129 REFERENCES

Neural Correlates of Simple and Complex Mental Calculation

TLDR
The functional anatomy of the two basic resolution strategies involved in mental calculation, namely arithmetical fact retrieval and actual computation, is revealed, questioning in particular the respective role of language and/or visuospatial cerebral areas.

Distinct Cortical Areas for Names of Numbers and Body Parts Independent of Language and Input Modality

TLDR
These results complement the existing neuropsychological and brain-imaging literature by suggesting that within the extensive network of bilateral parietal regions active during both number and body-part processing, a subset shows category-specific responses independent of the language and modality of presentation.

Dissociating Prefrontal and Parietal Cortex Activation during Arithmetic Processing

TLDR
Functional magnetic resonance imaging findings indicate a dissociation in prefrontal and parietal cortex function during arithmetic processing and provide the first evidence for a specific role for the angular gyrus in arithmetic computation independent of other processing demands.

Dissociating neural correlates of cognitive components in mental calculation.

TLDR
Using fMRI, brain activity in healthy subjects performing arithmetical tasks and control tasks evoking a comparable load on visuo-constructive, linguistic, attentional and mnemonic functions is mapped to embed the specific cognitive operation of calculation into a neural framework that provides the required set of instrumental components.

The Generality of Parietal Involvement in Visual Attention

The priming method: imaging unconscious repetition priming reveals an abstract representation of number in the parietal lobes.

TLDR
This work exposes the general logic, potential and limitations of the priming method and illustrates it by demonstrating that a region of parietal cortex is coding for numbers at the quantity level, independently of other stimulus attributes, and that this region processes both consciously and unconsciously perceived stimuli.

The Time Course of Parietal Activation in Single-digit Multiplication: Evidence from Event-related Potentials

TLDR
Electrophysiological, neuropsychological, and brain-imaging data suggest that left inferior parietal areas are involved in mental calculation, andEvent-related potentials ERPs were used to examine the organization of brain activations during single-digit multiplication, suggesting that simple multiplication problems may involve a short-lived activation in the left inferiorParietal cortex, whereas complex problems may require longer processing.

Differential Contributions of the Left and Right Inferior Parietal Lobules to Number Processing

TLDR
Partially distinct cerebral circuits with the dorsal parietal pathway underlie distinct arithmetic operations in brain-lesioned patients.

Varieties of numerical abilities

...