Cited by 900Visual perception and processing mechanismsVisual Attention and Saliency DetectionFace Recognition and Perception

A cortical mechanism for triggering top-down facilitation in visual object recognition

Bar, Moshe·2003·Journal of Cognitive Neuroscience

Abstract

The majority of the research related to visual recognition has so far focused on bottom-up analysis, where the input is processed in a cascade of cortical regions that analyze increasingly complex information. Gradually more studies emphasize the role of top-down facilitation in cortical analysis, but it remains something of a mystery how such processing would be initiated. After all, top-down facilitation implies that high-level information is activated earlier than some relevant lower-level information. Building on previous studies, I propose a specific mechanism for the activation of top-down facilitation during visual object recognition. The gist of this hypothesis is that a partially analyzed version of the input image (i.e., a blurred image) is projected rapidly from early visual areas directly to the prefrontal cortex (PFC). This coarse representation activates in the PFC expectations about the most likely interpretations of the input image, which are then back-projected as an “initial guess” to the temporal cortex to be integrated with the bottom-up analysis. The top-down process facilitates recognition by substantially limiting the number of object representations that need to be considered. Furthermore, such a rapid mechanism may provide critical information when a quick response is necessary.

Integrity signals

Registry

Crossref · 10.1162/089892903321662976

Cites

116 of 116 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • A fundamental role of the M system/dorsal stream might be to produce a low-resolution template of the visual scene that influences perceptual processes in ventral occipito-temporal cortex by allowing P pathway fine-detailed input to be used more effectively.

    “A fundamental role of the M system/dorsal stream might be to produce a low-resolution template of the visual scene that influences perceptual processes, such as categorization of natural images, object recognition, and perceptual grouping in the ventral occipito-temporal cortex, by allowing P pathway fine-detailed input to be used more effectively (3,75–80).”

    From Visual perception and its impairment in schizophrenia (2008) · cites this paper as [78]

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Bar, M.
Affiliations
Harvard University (US)
Corresponding author
Bar, Moshe
Venue
Journal of Cognitive Neuroscience
Publisher
MIT Press
Published
2003-05
Volume
15
Issue
4
Pages
600-609
ISSN
  • 0898-929X (ISSN-L)
  • 1530-8898
OpenAlex
W2099679614
Cited by
900
References
116
Citations by year
2026: 22 · 2025: 26 · 2024: 40 · 2023: 31 · 2022: 33 · 2021: 42 · 2020: 49 · 2019: 34 · 2018: 39 · 2017: 48 · 2016: 43 · 2015: 69 · 2014: 58 · 2013: 51 · 2012: 43
FWCI
2.82
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Cognitive Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Neurological Disorders and Stroke (R01 NS44319-01, R01NS044319)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Visual Attention and Saliency Detection
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Face Recognition and Perception
Keywords
visual object recognition, prefrontal cortex, bottom-up processing, early visual areas, image blurring, top-down expectations, initial guess, temporal cortex
MeSH terms
Humans, Photic Stimulation, Prefrontal Cortex, Recognition, Psychology

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review