[Differential visual attention scales directed by location versus semantic cue].

Objective: To compare the cortical mechanisms associated with visual spatial attention directed by location cues and Chinese character cues.

Method: Eleven healthy adults (mean age=19) with normal vision served as the subjects. In experiment I, the cue was a circle with black solid line.

[Brain processing component during face cognition--N170 revealed by event-related potentials].

Objective. To observe features of early component N170 during face recognition. Method.

[The mechanism of gain in scale of visual attention].

Objective. To compare the cortical mechanisms associated with the visual spatial attention directed by fixed location cues. Method.