Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

EEG changes during word and figure categorization.

T Harmony1, T Fernández, A Fernández-Bouzas

  • 1Centro de Neurobiología, UNAM Campus Juriquilla, Qro., Juriquilla Querétaro, Mexico. thaliah@servidor.unam.mx

Clinical Neurophysiology : Official Journal of the International Federation of Clinical Neurophysiology
|July 19, 2001
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Prognostic factors for mortality in elderly patients with hip fracture].

Revista espanola de anestesiologia y reanimacion·2012
Same author

Effects of the combined administration of propranolol plus sorafenib on portal hypertension in cirrhotic rats.

American journal of physiology. Gastrointestinal and liver physiology·2012
Same author

Randomised clinical trial: the safety and efficacy of long-acting octreotide in patients with portal hypertension.

Alimentary pharmacology & therapeutics·2012
Same author

Listeriosis in pregnancy: a secular trend in a tertiary referral hospital in Barcelona.

European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology·2012
Same author

Impact of climate change on risk of incursion of Crimean-Congo haemorrhagic fever virus in livestock in Europe through migratory birds.

Journal of applied microbiology·2011
Same author

Design, history and results of the Thiazolidinedione Intervention with vitamin D Evaluation (TIDE) randomised controlled trial.

Diabetologia·2011
Same journal

When the algorithm disagrees: managing AI-generated 'second opinions' in clinical neurophysiology.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2026
Same journal

Cervical nerve root contribution to diaphragm motor innervation revisited via intraoperative clinical and neurophysiological observations.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2026
Same journal

Lower cranial nerve responses after laryngeal stimulation in posterior fossa surgery: a study of medullary complex motor functions.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2026
Same journal

Standardisation matters: the IFCN neuromuscular ultrasound training program.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2026
Same journal

The prospects and challenges of closed-loop high-bandwidth brain-to-body-and-machine interfacing.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2026
Same journal

EEG patterns and cognitive outcomes in chronic respiratory disorders: a systematic review.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2026
See all related articles

This study investigated semantic knowledge models using electroencephalography (EEG) in children. Results suggest a modified amodal semantic hypothesis, where word and figure meanings are stored in a common conceptual memory system.

Area of Science:

  • Cognitive Neuroscience
  • Neuroimaging
  • Developmental Psychology

Background:

  • Understanding semantic knowledge representation is crucial for cognitive science.
  • Existing models include dual, common amodal, and alternative systems for processing words and pictures.
  • Investigating brain activity during categorization tasks can elucidate these models.

Purpose of the Study:

  • To determine if EEG changes during word and figure categorization align with existing semantic knowledge models.
  • To differentiate between modality-specific and amodal representations of meaning.
  • To test the modified amodal semantic hypothesis.

Main Methods:

  • Electroencephalography (EEG) was recorded from 28 children (8-10 years old) during word and figure categorization tasks.

Related Experiment Videos

  • Variable resolution electrical tomography (VARETA) was used for EEG source computation in the frequency domain.
  • Statistical parametric mapping (SPM) was applied for statistical evaluation of EEG data.

    • Main Results:

    • Significant EEG power changes were observed post-stimulus presentation across frequencies.
    • Word categorization showed specific EEG changes in occipital and temporo-occipital regions (3.9-6.24 Hz), potentially related to visual encoding.
    • Figure categorization revealed increased activity in prefrontal and temporal regions (7.8-17.94 Hz), possibly linked to object working memory.

    Conclusions:

    • EEG findings suggest modality-specific processing for visual encoding of words and object representation during figure categorization.
    • The lack of significant task differences in broad brain areas at certain frequencies supports a common amodal storage for semantic meaning.
    • Results provide evidence for the modified amodal semantic hypothesis, proposing a shared conceptual memory system for diverse stimuli.