Theory.2Fsource C1 and P1 (neuroscience)
1 theory/source 1.1 p1 reflects cost of attention 1.2 vs. late selection attention models 1.3 c1 , striate cortex 1.4 extrastriate cortex theory/source p1 reflects cost of attention luck et al. (1994) proposed p1 effect reflection of cost of attention. has been shown previously, whenever participant paying attention particular area , target stimulus presented outside wherever participant attending, there decrement in p1 amplitude (e.g. mangun & hillyard, 1991;van voorhis , hillyard, 1977). luck et al. claim decrement cost of attending someplace , being incorrect. decrement or suppression of p1 represents cost of having stop attending 1 area , shift attention place target stimulus located. compared component called n1. n1 shows increment in amplitude when participant attending area , stimulus shown in area. luck et al. (1994) call benefit of attention. early vs. late selection attention models one of critical debates c1 , p1 have helped contribute of versus late selection mode...