Perceptual Discrimination of Basic Object Features Is Not Facilitated When Priming Stimuli Are Prevented From Reaching Awareness by Means of Visual Masking

Frontiers in Integrative Neuroscience

Philippe A. Chouinard¹  Hayden J. Peel¹  Robin Laycock²  Irene Sperandio³ 

[1] Department of Psychology and Counselling, School of Psychology and Public Health, La Trobe University, Melbourne, VIC, Australia;School of Health and Biomedical Sciences, RMIT University, Melbourne, VIC, Australia;School of Psychology, University of East Anglia, Norwich, United Kingdom;

关键词: vision;    form discrimination;    orientation discrimination;    size discrimination;    visual masking;    priming;   

DOI  :  10.3389/fnint.2018.00013

来源: DOAJ

【 摘 要 】

Our understanding of how form, orientation and size are processed within and outside of awareness is limited and requires further investigation. Therefore, we investigated whether or not the visual discrimination of basic object features can be influenced by subliminal processing of stimuli presented beforehand. Visual masking was used to render stimuli perceptually invisible. Three experiments examined if visible and invisible primes could facilitate the subsequent feature discrimination of visible targets. The experiments differed in the kind of perceptual discrimination that participants had to make. Namely, participants were asked to discriminate visual stimuli on the basis of their form, orientation, or size. In all three experiments, we demonstrated reliable priming effects when the primes were visible but not when the primes were made invisible. Our findings underscore the importance of conscious awareness in facilitating the perceptual discrimination of basic object features.

【 授权许可】

Unknown