Evidence map›Paper›PMID 32466442›Full record

ArticleVision (Basel, Switzerland)2020

Effects of Spatial Frequency Filtering Choices on the Perception of Filtered Images.

Sabrina Perfetto, John Wilder, Dirk B Walther

Abstract read
In one paragraph

Article in Vision (Basel, Switzerland), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed.

  1. Trial
  2. Post-saccadic disruption of semantic category information in naturalistic scenes.Cortex; a journal devoted to the study of the nervous system and behavior · 2026
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  13. Mixed Selectivity Coding of Content-Temporal Detail by Dorsomedial Posterior Parietal Neurons.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  14. The Spatiotemporal Neural Dynamics of Object Recognition for Natural Images and Line Drawings.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Sabrina PerfettoHuman Biology Program, University of Toronto, Wetmore Hall, 300 Huron Street, Room 105, Toronto, ON M5S 3J6, Canada.
John WilderDepartment of Psychology, University of Toronto, 100 St. George Street, Toronto, ON M5S 3G3, Canada.
Dirk B WaltherDepartment of Psychology, University of Toronto, 100 St. George Street, Toronto, ON M5S 3G3, Canada.

Funding

Natural Sciences and Engineering Research Council of Canada RGPIN-2015-06696
6 · The paper itself

Abstract

The early visual system is composed of spatial frequency-tuned channels that break an image into its individual frequency components. Therefore, researchers commonly filter images for spatial frequencies to arrive at conclusions about the differential importance of high versus and low spatial frequency image content. Here, we show how simple decisions about the filtering of the images, and how they are displayed on the screen, can result in drastically different behavioral outcomes. We show that jointly normalizing the contrast of the stimuli is critical in order to draw accurate conclusions about the influence of the different spatial frequencies, as images of the real world naturally have higher contrast energy at low than high spatial frequencies. Furthermore, the specific choice of filter shape can result in contradictory results about whether high or low spatial frequencies are more useful for understanding image content. Finally, we show that the manner in which the high spatial frequency content is displayed on the screen influences how recognizable an image is. Previous findings that make claims about the visual system's use of certain spatial frequency bands should be revisited, especially if their methods sections do not make clear what filtering choices were made.

Indexed as

Butterworth filtercontrast normalizationnatural scenesscene categorizationscene gistspatial frequencies

Identifiers

PMID32466442
PMCPMC7355859

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.