]> BibSonomy publications for /bibtex/2a6ac7fcc4994e695e649edf9b2ba4505/tmalsburg http://www.bibsonomy.org/burst/bibtex/2a6ac7fcc4994e695e649edf9b2ba4505/tmalsburg BibSonomy BuRST Feed for /bibtex/2a6ac7fcc4994e695e649edf9b2ba4505/tmalsburg 2008-10-12T00:40:57+02:00 Microsaccades uncover the orientation of covert attention Microsaccades uncover the orientation of covert at...[Vision Res. 2003] - PubMed Resulthttp://www.bibsonomy.org/bibtex/2a6ac7fcc4994e695e649edf9b2ba4505/tmalsburg tmalsburg 2007-10-30T17:38:06+01:00 B_scanpathsimilarity algorithm eyemovements saccades vision
PDF Microsaccades uncover the orientation of covert attention
Ralf Engbert and Reinhold Kliegl Vision Res 43 1035-1045 (2003)
to B_scanpathsimilarity algorithm eyemovements saccades vision on 2007-10-30 17:38:06 ]]> Vision ResApr91035-1045Microsaccades uncover the orientation of covert attention432003B_scanpathsimilarity algorithm eyemovements saccades vision 2007-10-30 17:38:06.0Fixational eye movements are subdivided into tremor, drift, and microsaccades. All three types of miniature eye movements generate small random displacements of the retinal image when viewing a stationary scene. Here we investigate the modulation of microsaccades by shifts of covert attention in a classical spatial cueing paradigm. First, we replicate the suppression of microsaccades with a minimum rate about 150 ms after cue onset. Second, as a new finding we observe microsaccadic enhancement with a maximum rate about 350 ms after presentation of the cue. Third, we find a modulation of the orientation towards the cue direction. These multiple influences of visual attention on microsaccades accentuate their role for visual information processing. Furthermore, our results suggest that microsaccades can be used to map the orientation of visual attention in psychophysical experiments.