[2] Free Univ Berlin, Dept Ed & Psychol, Berlin, Germany
[3] Univ Paris 05, CNRS, Lab Psychol Percept, Paris, France
来源:
PLOS ONE
|
2009年
/
4卷
/
03期
关键词:
INTERACTIVE ACTIVATION MODEL;
TOP-DOWN INFLUENCES;
WORD FORM AREA;
SELECTIVE ATTENTION;
SPATIAL ATTENTION;
BRAIN POTENTIALS;
VISUOSPATIAL ATTENTION;
LETTER PERCEPTION;
VENTRAL STREAM;
CORTEX;
D O I:
10.1371/journal.pone.0005047
中图分类号:
O [数理科学和化学];
P [天文学、地球科学];
Q [生物科学];
N [自然科学总论];
学科分类号:
07 ;
0710 ;
09 ;
摘要:
Human information processing depends critically on continuous predictions about upcoming events, but the temporal convergence of expectancy-based top-down and input-driven bottom-up streams is poorly understood. We show that, during reading, event-related potentials differ between exposure to highly predictable and unpredictable words no later than 90 ms after visual input. This result suggests an extremely rapid comparison of expected and incoming visual information and gives an upper temporal bound for theories of top-down and bottom-up interactions in object recognition.