Computational diversity in complex cells of cat primary visual cortex.

Computational diversity in complex cells of cat primary visual cortex. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Computational diversity in complex cells of cat primary visual cortex. Abstract Text:

Ian M Finn,David Ferster,

A previous study has suggested that complex cells perform a MAX-like operation on their inputs: when two bar stimuli are presented within the receptive field, regardless of their relative separation, the cell's response is similar in amplitude to the larger of the responses elicited by the individual stimuli. This description of complex cells seems at odds with the classical energy model in which complex cells receive input from multiple simple cells with overlapping receptive fields. The energy model predicts, and experiments have confirmed, that bar stimuli should facilitate or suppress one another depending on their relative separation. We have recorded intracellularly from a population of complex cells and studied their responses to paired bar stimuli in detail. A wide range of behavior was observed, from the more classical separation-dependent interactions to purely MAX-like responses. We also found that the more MAX-like a cell was, the broader its spatial-frequency tuning as measured with drifting gratings. These observations are consistent with energy models in which classical complex cells receive input from simple cells with similar preferred spatial frequencies, and MAX-like complex cells receive input from simple cells with disparate preferred spatial frequencies. Generalized energy models, then, can account for diverse modes of computation in cortical complex cells.

Computational diversity in complex cells of cat primary visual cortex. Publishing Authors By Initials

IM Finn,D Ferster,

For similar nervous system: central nervous system: brain: prosencephalon: telencephalon: cerebrum: cerebral cortex: occipital lobe: visual cortex research abstracts see: nervous system: central nervous system: brain: prosencephalon: telencephalon: cerebrum: cerebral cortex: occipital lobe: visual cortex research

PUBMED ID PMID:

MEDLINE DATE:

Computational diversity in complex cells of cat primary visual cortex. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: The Journal of neuroscience : the official journal

VOLUME: 27

Page Numbers: 9638-48

Journal Abbreviation: J. Neurosci.

ISSN: 1529-2401

DAY: 5

MONTH: Sep

YEAR: 2007

Computational diversity in complex cells of cat primary visual cortex. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 8102140

Computational diversity in complex cells of cat primary visual cortex. Keywords Mesh Terms:

KEYWORDS: Visual Cortex

MESH TERMS: physiology

Chemical & Substance for Abstract: Computational diversity in complex cells of cat primary visual cortex. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Computational diversity in complex cells of cat primary visual cortex.

AFFILIATION: Department of Neurobiology and Physiology, Northwestern University, Evanston, Illinois 60208, USA.

Country: United States

AGENCY: United States NEI

GRANT: R01 EY04726

ACRONYM: EY

MEDLINETA: J Neurosci

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Computational diversity in complex cells of cat primary visual cortex Related Publications

• Computational diversity in complex cells of cat primary visual cortex.
• Inhibition, spike threshold, and stimulus selectivity in primary visual cortex.
• Magnetic resonance imaging and angiography in cerebral fungal vasculitis.
• Matched-related donor transplantation for sickle cell disease: report from the Center for International Blood and Transplant Research.
• The emergence of contrast-invariant orientation tuning in simple cells of cat visual cortex.
• Use of hydroxyurea in prevention of stroke in children with sickle cell disease.