Previous studies indicated that the spatial attention and temporal attention shared some common neural mechanisms,although they modulate the stimulus processing differently.Utilizing the high temporal resolution of event-related potentials(ERPs),we combined the endogenous cue-target paradigm in which the central cue could completely predicts the target location or the appearance time point of target with go/no-go task to investigate whether the spatial attention and temporal attention could have difference effect on visual stimulus processing.The ERPs results showed that the spatial and temporal attention had the same effect on early ERPs component before 260ms post-stimulus.But the spatial and temporal attention had different effects on late ERPs data.Specifically,during the time window of 260-300ms,the spatial attention condition elicited larger negative amplitude than the temporal attention condition,while during the time window of 380-420ms,the temporal attention condition elicited larger positive amplitude than the spatial attention condition.The present ERPs results suggested that modulations of visual stimulus processing by spatial or temporal orienting of attention were different,but partially overlapping.
Xiaoyu Tang Chunlin Li Qi Li Yulin Gao Weiping Yang Jingjing Yang Ishikawa Soushirou Satoshi Takahashi Jinglong Wu
Biomedical Engineering Laboratory Okayama University,3-1-1 Tsushima-naka,Okayama,700-8530 School of Biomedical Engineering Capital Medical University,Youanmen,Beijing,100069,China School of Computer Science and Technology Changchun University of Science and Technology,Weijing Str Biomedical Engineering Laboratory Okayama University,3-1-1 Tsushima-naka,Okayama,700-8530,Japan