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

Categorization and category effects in normal object recognition: a PET study.

C Gerlach1, I Law, A Gade

  • 1The Neurobiology Research Unit, N9201, and The PET and Cyclotron Unit, KF3982, Copenhagen University Hospital, Rigshospitalet, Blegdamsvej 9, 2100, Copenhagen, Denmark. gerlach@pet.rh.dk

Neuropsychologia
|December 2, 2000
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

Collapse of Nuclear Collectivity along the N=Z Line.

Physical review letters·2026
Same author

Clarifying the N,Z=14 Shells near the Drip Lines from the Spectroscopy of ^{22}Si and ^{21}Al.

Physical review letters·2026
Same author

Safety and use of IBD therapies during pregnancy and lactation.

Expert review of gastroenterology & hepatology·2026
Same author

Abrupt structural transition in exotic molybdenum isotopes unveils an isospin-symmetric island of inversion.

Nature communications·2025
Same author

Observation of New Isotopes in the Fragmentation of ^{198}Pt at FRIB.

Physical review letters·2024
Same author

Policy and programmatic directions for the Lesotho tuberculosis programme: Findings of the national tuberculosis prevalence survey, 2019.

PloS one·2023
Same journal

Prevalence and modulation of rat off-track head scanning on linear tracks: possible implications for representational and dynamic properties of hippocampal place cells.

Neuropsychologia·2026
Same journal

Identifying networks within an fMRI multivariate searchlight analysis.

Neuropsychologia·2026
Same journal

Modulating sentence comprehension in people with aphasia through anodal tDCS: A double-blind randomized cross-over study.

Neuropsychologia·2026
Same journal

Deficient processing of regularity violations during visuospatial neglect: a visual mismatch negativity study.

Neuropsychologia·2026
Same journal

Seeing is believing: mental imagery amplifies moral, emotional, and motivational responding to mentally constructed hypothetical events.

Neuropsychologia·2026
Same journal

From Past Recall to Future Projection: What Does Verb Tense Production Reveal About Mental Time Travel in Alzheimer's disease?

Neuropsychologia·2026
See all related articles

This study reveals distinct brain regions for structural and semantic visual object recognition. Categorizing man-made artefacts, unlike natural objects, engages action knowledge areas in the premotor cortex.

Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Neuroimaging

Background:

  • Visual object recognition involves sequential structural and semantic processing stages.
  • Understanding category-specific neural correlates is crucial for deciphering object recognition mechanisms.

Purpose of the Study:

  • To differentiate neural substrates of structural versus semantic object recognition.
  • To investigate category-specific (artefacts vs. natural objects) effects during object recognition.

Main Methods:

  • Employed a 2x2 factorial design comparing object decision and categorization tasks for artefacts and natural objects.
  • Utilized regional cerebral blood flow (rCBF) to measure brain activity.
  • Analyzed brain activation patterns associated with structural and semantic processing.

Related Experiment Videos

Main Results:

  • Object decision tasks activated structural processing areas (fusiform gyri, right inferior frontal gyrus).
  • Categorization tasks engaged semantic processing areas (left inferior temporal gyrus).
  • Categorization of artefacts, compared to natural objects, uniquely activated the left premotor cortex, suggesting action knowledge involvement.

Conclusions:

  • Structural and semantic stages of visual object recognition are neurally dissociable.
  • Categorization of artefacts relies partly on action knowledge mediated by the left premotor cortex.
  • While categories show distinct activation patterns, processing is not entirely segregated, with varying reliance on different knowledge forms.