Speeded manual responses to unseen visual stimuli in hemianopic patients: what kind of blindsight?
Anno:
2015
Tipologia prodotto:
Articolo in Rivista
Tipologia ANVUR:
Articolo su rivista
Lingua:
Inglese
Formato:
A Stampa
Referee:
Sì
Nome rivista:
CONSCIOUSNESS AND COGNITION
ISSN Rivista:
1053-8100
N° Volume:
32
Intervallo pagine:
6-14
Parole chiave:
Poffenberger paradigm; perceptual awareness; Interhemispheric transfer; reaction time
Breve descrizione dei contenuti:
Blindsight, i.e., unconscious visually guided behaviour triggered by stimuli presented to a cortically blind hemifield, has been typically found either by using direct (forced choice) or indirect (interhemispheric) methods. However, one would expect to find blindsight also in fast responses to suddenly appearing visual stimuli, a reminiscence of evolutionary ancient adaptive behaviour. In this study we provide preliminary evidence of this form of blindsight by using a conservative method for assessing blindsight based on a comparison between the cumulative probability functions (CPFs) of simple reaction times to blind and intact field stimuli. Furthermore, in two patients with blindsight we provided evidence that their above-chance unconscious responses were likely to be triggered by the intact hemisphere.
Note:
Corrigendum to “Speeded manual responses to unseen visual stimuli in hemianopic patients: What kind of blindsight?” [Conscious Cogn. 32 (2015) 6–14]. - Conscious Cogn. 2017 Feb;48:292. doi: 10.1016/j.concog.2016.12.005. - "The authors regret that funding information was omitted. This research was in part supported by a grant from the European Research Council (ERC) n. 339939 “Perceptual Awareness” awarded to C.A.M.” The authors would like to apologise for any inconvenience caused."
Celeghin, A.; Barabas, M.; Mancini, F.; Bendini, M.; Pedrotti, E.; Prior, M.; Cantagallo, A.; Savazzi, S.; Marzi, C. A.,
Speeded manual responses to unseen visual stimuli in hemianopic patients: what kind of blindsight?«CONSCIOUSNESS AND COGNITION»
, vol. 32
, 2015
, pp. 6-14