RT Journal Article
T1 Attentional Modulation of Change Detection ERP Components by Peripheral Retro-Cueing
A1 Pazo Álvarez, Paula
A1 Roca-Fernández, Adriana
A1 Gutiérrez Domínguez, Francisco Javier
A1 Amenedo Losada, María Elena
K1 Change detection
K1 Change blindness
K1 ERPs
K1 Late positivity
K1 Peripheral cues
K1 Retro-cueing
K1 Visual awareness negativity
AB Change detection is essential for visual perception and performance in our environment. However, observers often miss changes that should be easily noticed. A failure in any of the processes involved in conscious detection (encoding the pre-change display, maintenance of that information within working memory, and comparison of the pre and post change displays) can lead to change blindness. Given that unnoticed visual changes in a scene can be easily detected once attention is drawn to them, it has been suggested that attention plays an important role on visual awareness. In the present study, we used behavioral and electrophysiological (ERPs) measures to study whether the manipulation of retrospective spatial attention affects performance and modulates brain activity related to the awareness of a change. To that end, exogenous peripheral cues were presented during the delay period (retro-cues) between the first and the second array using a one-shot change detection task. Awareness of a change was associated with a posterior negative amplitude shift around 228–292 ms (“Visual Awareness Negativity”), which was independent of retrospective spatial attention, as it was elicited to both validly and invalidly cued change trials. Change detection was also associated with a larger positive deflection around 420–580 ms (“Late Positivity”), but only when the peripheral retro-cues correctly predicted the change. Present results confirm that the early and late ERP components related to change detection can be functionally dissociated through manipulations of exogenous retro-cueing using a change blindness paradigm
PB Frontiers Research Foundation
YR 2017
FD 2017
LK http://hdl.handle.net/10347/20844
UL http://hdl.handle.net/10347/20844
LA eng
NO Pazo-Álvarez P, Roca-Fernández A, Gutiérrez-Domínguez F-J and Amenedo E (2017) Attentional Modulation of Change Detection ERP Components by Peripheral Retro-Cueing. Front. Hum. Neurosci. 11:76
NO This work was supported by the Spanish Ministry of Economy and Competitiveness (MINECO) grant PSI2014-53743-P
DS Minerva
RD 4 may 2026