Increment of the Extinction Illusion by Long Stimulation
| Autor: | Yukyu Araragi, Akiyoshi Kitaoka |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
genetic structures
media_common.quotation_subject Illusion Experimental and Cognitive Psychology Stimulation Fixation Ocular Stimulus (physiology) Extinction Psychological Contrast Sensitivity Discrimination Psychological Optics Artificial Intelligence Orientation Reaction Time Humans Attention Size Perception media_common Optical Illusions business.industry Sensory Systems Fixation point Visual field Ophthalmology Pattern Recognition Visual Homogeneous Psychology business |
| Zdroj: | Perception. 40:608-620 |
| ISSN: | 1468-4233 0301-0066 |
| DOI: | 10.1068/p6757 |
| Popis: | We quantitatively examined the effect of stimulus duration on the extinction illusion. A white disc was presented or not presented at an intersection of a grey grid (intersection configuration) or on a homogeneous background (background configuration). The extinction illusion was quantified as the subtraction of no-disc responses in the background configuration (ie baseline) from no-disc responses in the intersection configuration, when the disc was presented. Experiment 1 showed a temporal effect: the extinction illusion increased as stimulus duration increased; this temporal effect was observed when the disc was presented at 9 deg from the fixation point and when the stimulus duration was 1000 – 6000 ms. Experiment 2 showed a visual field anisotropy: the extinction illusion occurred more frequently in the upper visual field than in the lower visual field, when the stimulus duration was 200 ms; the anisotropy was not observed when the stimulus duration was 6000 ms. Experiment 3 showed an alley-length effect: when the grid alley was long, the extinction illusion occurred more frequently in the 6000 ms condition than in the 200 ms condition; the temporal effect was not observed when the grid alley was short. These results suggest that the temporal effect of the extinction illusion might be due to perceptual filling-in of luminance information of the grid alley. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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