Timing of the earliest ERP correlate of visual awareness Export

@article{citeulike:1571335, abstract = {Abstract The earliest reliably occurring event-related brain potential (ERP) correlate of visual awareness (visual awareness negativity, VAN) emerges after 100 ms and peaks between 200 and 300 ms from stimulus onset. In a study using low-contrast stimuli, VAN was significantly delayed, peaking at 460 ms (V. Ojanen, A. Revonsuo, \& M. Sams, 2003). In that study physical differences between the conscious and nonconscious stimuli may have confounded the results. Here we explored whether VAN is similarly delayed for physically identical stimuli. We presented low-contrast stimuli near an individually determined subjective contrast threshold. A delayed VAN peaked at 400 ms at occipito-temporal sites to subjectively perceived stimuli. Our results support the interpretation that VAN is the earliest ERP correlate of phenomenal visual awareness. The electrophysiological processes eliciting VAN may become delayed as a function of the difficulty of the early perceptual discrimination.}, author = {Wilenius, Maria E. and Revonsuo, Antti T.}, citeulike-article-id = {1571335}, citeulike-linkout-0 = {http://www.blackwell-synergy.com/doi/abs/10.1111/j.1469-8986.2007.00546.x}, citeulike-linkout-1 = {http://dx.doi.org/10.1111/j.1469-8986.2007.00546.x}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/17584186}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=17584186}, doi = {10.1111/j.1469-8986.2007.00546.x}, journal = {Psychophysiology}, keywords = {consciousness, erps}, number = {5}, pages = {703--710}, posted-at = {2007-12-11 18:39:19}, priority = {2}, title = {Timing of the earliest ERP correlate of visual awareness}, url = {http://dx.doi.org/10.1111/j.1469-8986.2007.00546.x}, volume = {44}, year = {2007} }

TY - JOUR ID - citeulike:1571335 L3 - citeulike-article-id:1571335 N2 - Abstract The earliest reliably occurring event-related brain potential (ERP) correlate of visual awareness (visual awareness negativity, VAN) emerges after 100 ms and peaks between 200 and 300 ms from stimulus onset. In a study using low-contrast stimuli, VAN was significantly delayed, peaking at 460 ms (V. Ojanen, A. Revonsuo, & M. Sams, 2003). In that study physical differences between the conscious and nonconscious stimuli may have confounded the results. Here we explored whether VAN is similarly delayed for physically identical stimuli. We presented low-contrast stimuli near an individually determined subjective contrast threshold. A delayed VAN peaked at 400 ms at occipito-temporal sites to subjectively perceived stimuli. Our results support the interpretation that VAN is the earliest ERP correlate of phenomenal visual awareness. The electrophysiological processes eliciting VAN may become delayed as a function of the difficulty of the early perceptual discrimination. IS - 5 JF - Psychophysiology EP - 710 TI - Timing of the earliest ERP correlate of visual awareness VL - 44 SP - 703 KW - consciousness KW - erps AU - Wilenius, Maria AU - Revonsuo, Antti PY - 2007/// UR - http://dx.doi.org/10.1111/j.1469-8986.2007.00546.x ER -