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

Three-dimensional structure and evolution of primate primary visual cortex.

Eliot C Bush1, John M Allman

  • 1Biology Division, California Institute of Technology, Pasadena, California, USA. ebush@bsd.uchicago.edu

The Anatomical Record. Part A, Discoveries in Molecular, Cellular, and Evolutionary Biology
|October 8, 2004
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

xenoGI 3: using the DTLOR model to reconstruct the evolution of gene families in clades of microbes.

BMC bioinformatics·2023
Same author

Automating microbial taxonomy workflows with PHANTASM: phylogenomic analyses for the taxonomy and systematics of microbes.

Nucleic acids research·2023
Same author

Mapping frontoinsular cortex from diffusion microstructure.

Cerebral cortex (New York, N.Y. : 1991)·2022
Same author

Frontoinsular cortical microstructure is linked to life satisfaction in young adulthood.

Brain imaging and behavior·2021
Same author

The connections of the insular VEN area in great apes: A histologically-guided ex vivo diffusion tractography study.

Progress in neurobiology·2020
Same author

THC Exposure is Reflected in the Microstructure of the Cerebral Cortex and Amygdala of Young Adults.

Cerebral cortex (New York, N.Y. : 1991)·2020
Same journal

Mice lacking the p75 receptor fail to acquire a normal complement of taste buds and geniculate ganglion neurons by adulthood.

The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology·2006
Same journal

Projections of somatosensory cortex and frontal eye fields onto incertotectal neurons in the cat.

The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology·2006
Same journal

Pulmonary intravascular monocytes/macrophages in a rat model of sepsis.

The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology·2006
Same journal

Epicardium-derived cells are important for correct development of the Purkinje fibers in the avian heart.

The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology·2006
Same journal

Remodeling dynamics in the alveolar process in skeletally mature dogs.

The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology·2006
Same journal

Human cranial anatomy and the differential preservation of population history and climate signatures.

The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology·2006
See all related articles

Anthropoids have a longer, narrower primary visual cortex (V1) than strepsirrhines, evolving independently of V1 size. Anthropoid V1 is larger relative to its input source, the lateral geniculate nucleus (LGN).

Area of Science:

  • Neuroscience
  • Evolutionary Biology
  • Comparative Anatomy

Background:

  • The primary visual cortex (V1) is crucial for visual processing.
  • Understanding V1's evolution provides insights into primate brain development.
  • Previous studies have suggested size differences in V1 between primate groups.

Purpose of the Study:

  • To investigate the evolutionary changes in the three-dimensional shape and size of the primate primary visual cortex (V1).
  • To compare V1 morphology between anthropoids and strepsirrhines.
  • To analyze the scaling relationship between V1 and other brain structures, particularly the lateral geniculate nucleus (LGN).

Main Methods:

  • Three-dimensional reconstructions of primate brains were utilized.
  • Comparative measurements of V1 volume and shape were performed.

Related Experiment Videos

  • Independent contrasts analysis was employed to study allometric scaling.

    • Main Results:

    • Anthropoid V1 is significantly longer and narrower than strepsirrhine V1, independent of clade activity or size.
    • For a comparable lateral geniculate nucleus (LGN) volume, anthropoids exhibit a larger V1.
    • V1 demonstrates positive allometric scaling relative to the LGN.

    Conclusions:

    • The distinct V1 shape in anthropoids is an evolutionary adaptation specific to their clade.
    • The larger V1 relative to LGN in anthropoids suggests enhanced visual processing capabilities.
    • V1 allometry may reflect brain compartmentalization or the geometry of neural information representation.