Detecting novelty and significance.
Detecting novelty and significance.
复制标题
DOI:
10.1162/jocn.2009.21244
复制
发表时间:
2010-02
影响因子:
3.2
通讯作者:
Lang PJ
中科院分区:
文献类型:
--
作者:
Ferrari V;Bradley MM;Codispoti M;Lang PJ
Studies of cognition often use an “oddball” paradigm to study effects of stimulus novelty and significance on information processing. However, an oddball tends to be perceptually more novel than the standard, repeated stimulus as well as more relevant to the ongoing task, making it difficult to disentangle effects due to perceptual novelty and stimulus significance. In the current study, effects of perceptual novelty and significance on ERPs were assessed in a passive viewing context by presenting repeated and novel pictures (natural scenes) that either signaled significant information regarding the current context or not. A fronto-central N2 component was primarily affected by perceptual novelty, whereas a centro-parietal P3 component was modulated by both stimulus significance and novelty. The data support an interpretation that the N2 reflects perceptual fluency and is attenuated when a current stimulus matches an active memory representation and that the amplitude of the P3 reflects stimulus meaning and significance.
登录
查看更多内容
影响因子:
3.7
作者:
Bradley MM
通讯作者:
Bradley MM
影响因子:
3.7
作者:
Junghöfer, M;Elbert, T;Rockstroh, B
通讯作者:
Rockstroh, B
DOI:
10.1016/0168-5597(84)90016-9
发表时间:
1984-01-01
期刊:
ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY
影响因子:
--
作者:
KNIGHT, RT
通讯作者:
KNIGHT, RT
影响因子:
3.2
作者:
Codispoti, Maurizio;Ferrari, Vera;Bradley, Margaret M.
通讯作者:
Bradley, Margaret M.
影响因子:
3.2
作者:
Chong, Hyemi;Riis, Jenna L.;Daffner, Kirk R.
通讯作者:
Daffner, Kirk R.