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The emergence of visual awareness: temporal dynamics in relation to task and mask type ...
Kiefer, Markus; Kammer, Thomas. - : Universität Ulm, 2017
Abstract: One aspect of consciousness phenomena, the temporal emergence of visual awareness, has been subject of a controversial debate. How can visual awareness, that is the experiential quality of visual stimuli, be characterized best? Is there a sharp discontinuous or dichotomous transition between unaware and fully aware states, or does awareness emerge gradually encompassing intermediate states? Previous studies yielded conflicting results and supported both dichotomous and gradual views. It is well conceivable that these conflicting results are more than noise, but reflect the dynamic nature of the temporal emergence of visual awareness. Using a psychophysical approach, the present research tested whether the emergence of visual awareness is context-dependent with a temporal two-alternative forced choice task. During backward masking of word targets, it was assessed whether the relative temporal sequence of stimulus thresholds is modulated by the task (stimulus presence, letter case, lexical decision, and ... : publishedVersion ...
Keyword: activation; all-or-none; attentional blink; Awareness; Bewusstsein; brain; conscious perception; Consciousness; DDC 150 / Psychology; DDC 610 / Medicine & health; dichotomous; duration; facilitation; graded; inhibition; interference; Perception; Psychophysics; Psychophysik; threshold; vision; Vision, Ocular; visual masking; Wahrnehmung
URL: https://dx.doi.org/10.18725/oparu-38891
https://oparu.uni-ulm.de/xmlui/handle/123456789/38967
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