Correspondence of presaccadic activity in the monkey primary visual cortex with saccadic eye movements
AUTOR(ES)
Supèr, Hans
FONTE
National Academy of Sciences
RESUMO
We continuously scan the visual world via rapid or saccadic eye movements. Such eye movements are guided by visual information, and thus the oculomotor structures that determine when and where to look need visual information to control the eye movements. To know whether visual areas contain activity that may contribute to the control of eye movements, we recorded neural responses in the visual cortex of monkeys engaged in a delayed figure-ground detection task and analyzed the activity during the period of oculomotor preparation. We show that ≈100 ms before the onset of visually and memory-guided saccades neural activity in V1 becomes stronger where the strongest presaccadic responses are found at the location of the saccade target. In addition, in memory-guided saccades the strength of presaccadic activity shows a correlation with the onset of the saccade. These findings indicate that the primary visual cortex contains saccade-related responses and participates in visually guided oculomotor behavior.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=365772Documentos Relacionados
- Visual representations during saccadic eye movements
- Slow saccadic eye movements in Wilson's disease
- Correlates of transsaccadic integration in the primary visual cortex of the monkey
- Modulation by context of a scene in monkey anterior inferotemporal cortex during a saccadic eye movement task
- The vestibulo-ocular reflex during human saccadic eye movements.