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Related Experiment Video

Updated: Jan 8, 2026

Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
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Space and time in words: exploring neural overlap and specificity.

Francesca Conca1, Giulia Mattavelli2,3, Claudia Gianelli4

  • 1ICoN Cognitive Neuroscience Center, University School for Advanced Studies, IUSS, Pavia, Italy.

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Summary

The right intraparietal sulcus (IPS) is crucial for processing language-based magnitude, space, and time. The precuneus specifically aids in processing temporal concepts, according to this study.

Keywords:
InterventionIntraparietal sulcusMagnitudePrecuneusSemantic memorySpatial conceptsState-dependent transcranial magnetic stimulationTemporal concepts

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Area of Science:

  • Cognitive Neuroscience
  • Neuroimaging
  • Grounded Cognition

Background:

  • A shared magnitude system involving the right intraparietal sulcus (IPS) is proposed for space, time, and numerosity.
  • The specific roles of the IPS and right precuneus in processing these concepts, particularly within language, are debated.
  • Grounded cognition theory suggests sensory and motor systems are involved in abstract concept representation.

Purpose of the Study:

  • To investigate the causal contribution of the right intraparietal sulcus (IPS) and precuneus to the processing of spatial and temporal concepts in language.
  • To test the hypothesis of domain-specific versus shared neural mechanisms for magnitude processing within a grounded cognition framework.

Main Methods:

  • Employed a state-dependent Transcranial Magnetic Stimulation (TMS) priming paradigm in 20 healthy participants.
  • Applied TMS over the right IPS, right precuneus, and a control vertex site.
  • Assessed the impact of stimulation on the priming effect for spatial and temporal language concepts.

Main Results:

  • Stimulation of the right IPS significantly disrupted the priming effect for both spatial and temporal concepts compared to sham.
  • Stimulation of the precuneus selectively abolished the priming effect for temporal concepts only.
  • These findings indicate distinct neural substrates for spatial and temporal magnitude processing in language.

Conclusions:

  • The right intraparietal sulcus (IPS) plays a critical role in language-based magnitude processing, encompassing both spatial and temporal domains.
  • The precuneus, particularly its ventral part, shows a specialized function in processing temporal concepts within language.
  • Results support a nuanced view of magnitude representation, highlighting both shared and domain-specific neural contributions.