A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Masked blindsight in normal observers: Measuring subjective and objective responses to two features of each stimulus
Tekijät: Koivisto Mika, Neuvonen Susanna
Kustantaja: ACADEMIC PRESS INC ELSEVIER SCIENCE
Julkaisuvuosi: 2020
Journal: Consciousness and Cognition
Tietokannassa oleva lehden nimi: CONSCIOUSNESS AND COGNITION
Lehden akronyymi: CONSCIOUS COGN
Artikkelin numero: ARTN 102929
Vuosikerta: 81
Sivujen määrä: 21
ISSN: 1053-8100
eISSN: 1090-2376
DOI: https://doi.org/10.1016/j.concog.2020.102929
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/47270345
Recent visual masking studies that have measured visual awareness with graded subjective scales have often failed the show any evidence for unconscious visual processing in normal observers in a paradigm similar to that used in studies on blindsight patients. Without any reported awareness of the target, normal observers typically cannot discriminate target's features better than chance. The present study examined processing of color and orientation by measuring graded awareness and forced-choice discriminations for both features in each trial. When no awareness for either feature was reported, discrimination of each feature succeed better than expected by chance, even when the other feature was incorrectly discriminated in the same trial. However, the characteristics of the mask determined whether or not masked blindsight was observed. We conclude that when the processing channels are free from infra-channel interference, unbound or weakly bound features can guide behaviour without any reported awareness in normal observers.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
