The effect of grating spatial frequency on the early VEP-component CI

Vassilev, A.; Stomonyakov, V.

doi:10.1016/0042-6989(87)90070-8

Cited by 14 publications

(4 citation statements)

References 7 publications

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“…The rate of visual processing can also be inferred from latency of the visual evoked potential (VEP). VEP latency increases monotonically with increasing spatial frequency and a two-mechanism model has also been proposed to account for the increase in processing time (Parker & Salzen, 1977;Vassilev et al, 1983;Vassilev & Stomonyakov, 1987). In support of this claim, onset and offset VEP responses, which parallel the bimodal RT distributions, are only observed at low spatial frequencies (2 cycle/deg and below); middle and high spatial-frequency stimuli do not produce offset responses (Vassilev & Strashimirov, 1979;Vassilev et al, 1983).…”

Section: Introductionmentioning

confidence: 91%

“…VEP latency increases monotonically with increasing spatial frequency and a two-mechanism model has also been proposed to account for the increase in processing time (Parker & Salzen, 1977;Vassilev et al, 1983;Vassilev & Stomonyakov, 1987). VEP latency increases monotonically with increasing spatial frequency and a two-mechanism model has also been proposed to account for the increase in processing time (Parker & Salzen, 1977;Vassilev et al, 1983;Vassilev & Stomonyakov, 1987).…”

Section: Introductionmentioning

confidence: 99%

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The effects of a luminanace-modulated background on the grating-evoked cortical potential in the cat

Baro

Lehmkuhle

1989

Vis Neurosci

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Averaged grating-evoked cortical potentials were recorded from area 17 of awake cats. Peak latency of early components of the visual-evoked potential (VEP) response to stimulus onset increased as a function of spatial frequency, while amplitude tended to be largest at intermediate spatial frequencies. Latency increased and amplitude generally decreased to lower spatial-frequency stimuli (<0.25 cycle/deg) in the presence of a uniform flickering field (UFF). The UFF had a relatively small or opposite effect on peak latency and amplitude for higher spatial-frequency stimuli (>0.50 cycle/deg). The VEP response to stimulus offset was present only at low spatial frequencies and was virtually eliminated by the presence of the UFF. The effects were similar whether the target and UFF background were simultaneously presented or briefly separated; however, the UFF had no effect when the two were spatially separated. The effects of the UFF background on VEP onset response increased with increasing temporal frequency from 2-8 Hz; offset responses were affected similarly at all temporal frequencies. These effects are similar to those observed in humans and suggest that two spatio-temporally tuned mechanisms contribute to the early VEP response. In the cat, the mechanisms seem to correspond to X and Y cells in the dorsal lateral geniculate nucleus.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

The effects of a luminanace-modulated background on the grating-evoked cortical potential in the cat

Baro

Lehmkuhle

1989

Vis Neurosci

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“…An integrative masking explanation, in which it is argued that the emerging perception of the low spatial frequencies in the degraded image become integrated with the perception of the wider band of spatial frequencies contained in the change-back image, seems more plausible. Given that low spatial frequencies tend to be processed earlier than high spatial frequencies (Schyns & Oliva, 1993;Vassilev & Stomonyakov, 1987), with an early enough change-back, the integration of lower and higher spatial frequency information in the two image versions might be seamless. Therefore, integrative masking of the change image by the change-back image might explain part of the postsaccadic suppression observed in our study.…”

Section: Discussionmentioning

confidence: 99%

Perception onset time during fixations in free viewing

McConkie

Loschky

2002

Behavior Research Methods, Instruments, & Computers

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“…Research in spatial vision suggests that our visual system utilizes spatial frequency channels , which differentially process visual information carried in specific bands of spatial frequencies (Campbell & Robson, 1968; DeValois & DeValois, 1980; De Valois, Yund, & Hepler, 1982; Schyns & Oliva, 1994; Vassilev & Stomonyakov, 1987). The term “spatial frequency” (SF) is a measurement of the number of cycles of a sine wave in a given unit of space, and in the study of visual perception, SFs are often used as a means of measuring the limits of the visual system.…”

Section: Different Spatial Frequencies Have Different Perceptual Usesmentioning

confidence: 99%

Low and high spatial frequencies are most useful for drawing.

Freeman¹,

Loschky²

2011

Psychology of Aesthetics, Creativity, and the Arts

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What perceptual information do artists use to accurately render what they see? To answer this question, we investigated the utility of low, middle, and high spatial frequency band.s for drawing. Untrained artists drew portraits from four spatial frequency bands (unfiltered. low. middle, and high). Raters judged the accuracy of those drawings compared to images of either the same or an unfiltered version of the face. Contrary to predictions based on the useful spatial frequencies for face recognition, which favor middle spatial frequencies (MSFs), the results showed that low spatial frequencies (LSFs) and high spatial frequencies (HSFs) were more useful for drawing, and the unfiltered condition produced the best drawings. Thus, the information most useful for drawing faces is not the same as that for recognizing faces. Specifically, artists may utilize the global configuration information carried in LSFs and Ihe edge and detail information carried in HSFs to render accurate drawings.

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The effect of grating spatial frequency on the early VEP-component CI

Cited by 14 publications

References 7 publications

The effects of a luminanace-modulated background on the grating-evoked cortical potential in the cat

The effects of a luminanace-modulated background on the grating-evoked cortical potential in the cat

Perception onset time during fixations in free viewing

Low and high spatial frequencies are most useful for drawing.

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