par Windey, Bert 
;Gevers, Wim ;Cleeremans, Axel
Référence Cognition, 129, 2, page (404-409)
Publication Publié, 2013
;Gevers, Wim ;Cleeremans, Axel Référence Cognition, 129, 2, page (404-409)
Publication Publié, 2013
Article révisé par les pairs
| Résumé : | Is visual awareness graded or binary? Experimental work has provided support for both possibilities, leading to two coexisting but contradictory theoretical accounts. Here we pro- pose a promising candidate factor through which to integrate both accounts: the depth of stimulus processing required by the task. We compared color identification (a low-level task) with numerical judgements (a high-level task) performed on the very same colored number stimuli. Psychophysical curves were analyzed for both objective discrimination performance and subjective visibility ratings on a trial-by trial basis. We observed a graded relationship between stimulus duration and visibility in the low-level task, but a more non-linear relationship in the high-level task. Both patterns of results have previously been consistently associated with the graded and the dichotomous account, respectively. Follow-up experiments that manipulate the level of processing can further unify previously inconsistent results, thus integrating two major theories of visual awareness. |
