Segregation of visual selection and saccades in human frontal eye fields

C. H. Juan, N. G. Muggleton, O. J.L. Tzeng, Lan Hung, A. Cowey, V. Walsh

Research output: Contribution to journalArticlepeer-review

72 Scopus citations


The premotor theory of attention suggests that target processing and generation of a saccade to the target are interdependent. Temporally precise transcranial magnetic stimulation (TMS) was delivered over the human frontal eye fields, the area most frequently associated with the premotor theory in association with eye movements, while subjects performed a visually instructed pro-/antisaccade task. Visual analysis and saccade preparation were clearly separated in time, as indicated by 2 distinct time points of TMS delivery that resulted in elevated saccade latencies. These results show that visual analysis and saccade preparation, although frequently enacted together, are dissociable processes.

Original languageEnglish
Pages (from-to)2410-2415
Number of pages6
JournalCerebral Cortex
Issue number10
StatePublished - Oct 2008


  • Eye movements
  • Transcranial magnetic stimulation
  • Vision


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