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

Tracking the time course of object categorization using event-related potentials.

J Tanaka1, P Luu, M Weisbrod

  • 1Department of Psychology, Oberlin College, OH 44074, USA.

Neuroreport
|April 20, 1999
PubMed
Summary

Investigating object categorization using event-related potentials (ERPs), this study found distinct brain activity for superordinate and subordinate levels. Subordinate categorization involved more visual analysis, while superordinate categorization engaged more semantic processing.

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

Specificity of androgenic regulation of input to sexually dimorphic motoneurons in male rat lumbar spinal cord.

Experimental neurology·1995
Same author

Serum levels of six pancreatic enzymes as related to the degree of renal dysfunction.

The American journal of gastroenterology·1995
Same author

Coronary artery reoperation through the left thoracotomy with hypothermic circulatory arrest.

The Annals of thoracic surgery·1995
Same author

Possible role of T-cell surface molecule gene expression in the mixed lymphocyte culture for predicting transplantation-related complications after allogeneic bone marrow transplantation.

European journal of haematology·1995
Same author

Monoethylglycinexylidide formation as an independent measure of warm hepatic ischemia and reperfusion injury.

The Journal of surgical research·1995
Same author

Laparoscopic retrieval of disconnected ventriculoperitoneal shunt catheters: report of two cases.

Surgical laparoscopy & endoscopy·1995

Area of Science:

  • Cognitive Neuroscience
  • Neuroscience
  • Psychology

Background:

  • Understanding object categorization is crucial for cognitive science.
  • Previous research has explored behavioral aspects of categorization.
  • The neurophysiological underpinnings of different categorization levels remain less understood.

Purpose of the Study:

  • To investigate the neurophysiological differences between superordinate, basic, and subordinate object categorization.
  • To identify event-related potential (ERP) markers associated with distinct levels of categorization.
  • To explore the cognitive processes underlying different abstraction levels in object recognition.

Main Methods:

  • Event-related potentials (ERPs) were measured in human subjects.
  • Participants categorized objects at three levels: superordinate (e.g., animal), basic (e.g., dog), and subordinate (e.g., beagle).

Related Experiment Videos

  • Analysis focused on differences in N1 amplitude and frontal negativity across categorization levels.

    • Main Results:

    • Subordinate categorization showed an enhanced posterior N1 deflection, suggesting increased visual analysis.
    • Superordinate categorization exhibited greater frontal negativity compared to basic categorization, indicating heightened semantic processing.
    • Distinct ERP patterns were observed for different levels of object abstraction.

    Conclusions:

    • The findings suggest separate neurophysiological mechanisms for subordinate and superordinate object categorization.
    • Event-related potentials provide insights into the cognitive processes of visual and semantic analysis during categorization.
    • This research offers a neurobiological basis for understanding hierarchical object recognition.