作者
Simone Vossel, Ralph Weidner, Christiane M Thiel, Gereon R Fink
发表日期
2009/1
期刊
Journal of Cognitive Neuroscience
卷号
21
期号
1
页码范围
30-41
出版商
MIT Press
简介
Within the parietal cortex, the temporo-parietal junction (TPJ) and the intraparietal sulcus (IPS) seem to be involved in both spatial and nonspatial functions: Both areas are activated when misleading information is provided by invalid spatial cues in Posner's location-cueing paradigm, but also when infrequent deviant stimuli are presented within a series of standard events. In the present study, we used functional magnetic resonance imaging to investigate the distinct and shared brain responses to (i) invalidly cued targets requiring attentional reorienting, and (ii) to target stimuli deviating in color and orientation leading to an oddball-like distraction effect. Both unexpected location and feature changes were accompanied by a significant slowing of manual reaction times. Bilateral TPJ and right superior parietal lobe (SPL) activation was observed in response to invalidly as compared to validly cued targets. In contrast …
引用总数
20082009201020112012201320142015201620172018201920202021202220232024247710887138553671